experimental support for loongson mips64el uefi

GRUB2/MOD_SRC/grub-2.04/grub-core/kern/mips64/init.c

+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009,2017  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/kernel.h>
+#include <grub/env.h>
+#include <grub/time.h>
+#include <grub/cpu/mips.h>
+
+grub_uint32_t grub_arch_cpuclock;
+
+/* FIXME: use interrupt to count high.  */
+grub_uint64_t
+grub_get_rtc (void)
+{
+  static grub_uint32_t high = 0;
+  static grub_uint32_t last = 0;
+  grub_uint32_t low;
+
+  asm volatile ("mfc0 %0, " GRUB_CPU_MIPS_COP0_TIMER_COUNT : "=r" (low));
+  if (low < last)
+    high++;
+  last = low;
+
+  return (((grub_uint64_t) high) << 32) | low;
+}
+
+void
+grub_timer_init (grub_uint32_t cpuclock)
+{
+  grub_arch_cpuclock = cpuclock;
+  grub_install_get_time_ms (grub_rtc_get_time_ms);
+}

GRUB2/MOD_SRC/grub-2.04/grub-core/lib/efi/halt.c

+/* efi.c - generic EFI support */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2006,2007,2008,2009,2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/efi/api.h>
+#include <grub/efi/efi.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/kernel.h>
+#include <grub/acpi.h>
+#include <grub/loader.h>
+
+void
+grub_halt (void)
+{
+  grub_machine_fini (GRUB_LOADER_FLAG_NORETURN);
+#if !defined(__ia64__) && !defined(__arm__) && !defined(__aarch64__) && !defined(__mips__) &&\
+    !defined(__riscv)
+  grub_acpi_halt ();
+#endif
+  efi_call_4 (grub_efi_system_table->runtime_services->reset_system,
+              GRUB_EFI_RESET_SHUTDOWN, GRUB_EFI_SUCCESS, 0, NULL);
+
+  while (1);
+}

GRUB2/MOD_SRC/grub-2.04/grub-core/lib/mips64/efi/loongson.c

+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2017 Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/mm.h>
+#include <grub/cache.h>
+#include <grub/efi/efi.h>
+#include <grub/cpu/efi/memory.h>
+#include <grub/cpu/memory.h>
+#include <grub/machine/loongson.h>
+
+#pragma GCC diagnostic ignored "-Wunused-function"
+
+#define loongson_params (&loongson_boot_params->boot_params.efi.smbios.lp)
+#define loongson_boot_params_size ALIGN_UP (sizeof (*loongson_boot_params), 8)
+#define loongson_reset_code_size (&grub_efi_loongson_reset_end - &grub_efi_loongson_reset_start)
+
+extern grub_uint8_t grub_efi_loongson_reset_start;
+extern grub_uint8_t grub_efi_loongson_reset_end;
+
+static struct
+{
+  grub_efi_loongson_boot_params boot_params;
+  grub_efi_loongson_memory_map memory_map;
+  grub_efi_loongson_cpu_info cpu_info;
+  grub_efi_loongson_system_info system_info;
+  grub_efi_loongson_irq_src_routing_table irq_src_routing_table;
+  grub_efi_loongson_interface_info interface_info;
+  grub_efi_loongson_special_attribute special_attribute;
+  grub_efi_loongson_board_devices board_devices;
+} GRUB_PACKED
+* loongson_boot_params;
+
+static void
+grub_efi_loongson_init_reset_system (void)
+{
+  grub_efi_loongson_boot_params *boot_params;
+  grub_uint8_t *reset_code_addr = (grub_uint8_t *) loongson_boot_params +
+                                  loongson_boot_params_size;
+
+  boot_params = &loongson_boot_params->boot_params;
+  grub_efi_loongson_reset_system_addr =
+                 (grub_uint64_t) grub_efi_system_table->runtime_services->reset_system;
+  grub_memcpy (reset_code_addr, &grub_efi_loongson_reset_start, loongson_reset_code_size);
+  grub_arch_sync_caches (reset_code_addr, loongson_reset_code_size);
+
+  boot_params->reset_system.reset_cold = (grub_uint64_t) reset_code_addr +
+                                         ((grub_uint64_t) &grub_efi_loongson_reset_cold -
+                                          (grub_uint64_t) &grub_efi_loongson_reset_start);
+  boot_params->reset_system.reset_warm = (grub_uint64_t) reset_code_addr +
+                                         ((grub_uint64_t) &grub_efi_loongson_reset_warm -
+                                          (grub_uint64_t) &grub_efi_loongson_reset_start);
+  boot_params->reset_system.shutdown = (grub_uint64_t) reset_code_addr +
+                                         ((grub_uint64_t) &grub_efi_loongson_reset_shutdown -
+                                          (grub_uint64_t) &grub_efi_loongson_reset_start);
+  boot_params->reset_system.do_suspend = (grub_uint64_t) reset_code_addr +
+                                         ((grub_uint64_t) &grub_efi_loongson_reset_suspend -
+                                          (grub_uint64_t) &grub_efi_loongson_reset_start);
+}
+
+static void
+grub_efi_loongson_init_smbios (grub_efi_loongson_smbios_table *smbios_table)
+{
+  grub_efi_loongson_smbios_table *dst = &loongson_boot_params->boot_params.efi.smbios;
+
+  dst->vers = smbios_table->vers;
+  dst->vga_bios = smbios_table->vga_bios;
+}
+
+static void
+grub_efi_loongson_init_cpu_info (grub_efi_loongson_smbios_table *smbios_table)
+{
+  grub_efi_loongson_cpu_info *src = (void *) smbios_table->lp.cpu_offset;
+  grub_efi_loongson_cpu_info *dst = &loongson_boot_params->cpu_info;
+
+  if (!src)
+    return;
+
+  grub_memcpy (dst, src, sizeof (grub_efi_loongson_cpu_info));
+  loongson_params->cpu_offset = (grub_uint64_t) dst - (grub_uint64_t) loongson_params;
+}
+
+static void
+grub_efi_loongson_init_system_info (grub_efi_loongson_smbios_table *smbios_table)
+{
+  grub_efi_loongson_system_info *src = (void *) smbios_table->lp.system_offset;
+  grub_efi_loongson_system_info *dst = &loongson_boot_params->system_info;
+
+  if (!src)
+    return;
+
+  grub_memcpy (dst, src, sizeof (grub_efi_loongson_system_info));
+  loongson_params->system_offset = (grub_uint64_t) dst - (grub_uint64_t) loongson_params;
+}
+
+static void
+grub_efi_loongson_init_irq_src_routing_table (grub_efi_loongson_smbios_table *smbios_table)
+{
+  grub_efi_loongson_irq_src_routing_table *src = (void *) smbios_table->lp.irq_offset;
+  grub_efi_loongson_irq_src_routing_table *dst = &loongson_boot_params->irq_src_routing_table;
+
+  if (!src)
+    return;
+
+  grub_memcpy (dst, src, sizeof (grub_efi_loongson_irq_src_routing_table));
+  loongson_params->irq_offset = (grub_uint64_t) dst - (grub_uint64_t) loongson_params;
+}
+
+static void
+grub_efi_loongson_init_interface_info (grub_efi_loongson_smbios_table *smbios_table)
+{
+  grub_efi_loongson_interface_info *src = (void *) smbios_table->lp.interface_offset;
+  grub_efi_loongson_interface_info *dst = &loongson_boot_params->interface_info;
+
+  if (!src)
+    return;
+
+  grub_memcpy (dst, src, sizeof (grub_efi_loongson_interface_info));
+  loongson_params->interface_offset = (grub_uint64_t) dst - (grub_uint64_t) loongson_params;
+}
+
+static void
+grub_efi_loongson_init_special_attribute (grub_efi_loongson_smbios_table *smbios_table)
+{
+  grub_efi_loongson_special_attribute *src = (void *) smbios_table->lp.special_offset;
+  grub_efi_loongson_special_attribute *dst = &loongson_boot_params->special_attribute;
+
+  if (!src)
+    return;
+
+  grub_memcpy (dst, src, sizeof (grub_efi_loongson_special_attribute));
+  loongson_params->special_offset = (grub_uint64_t) dst - (grub_uint64_t) loongson_params;
+}
+
+static void
+grub_efi_loongson_init_board_devices (grub_efi_loongson_smbios_table *smbios_table)
+{
+  grub_efi_loongson_board_devices *src = (void *) smbios_table->lp.boarddev_table_offset;
+  grub_efi_loongson_board_devices *dst = &loongson_boot_params->board_devices;
+
+  if (!src)
+    return;
+
+  grub_memcpy (dst, src, sizeof (grub_efi_loongson_board_devices));
+  loongson_params->boarddev_table_offset = (grub_uint64_t) dst - (grub_uint64_t) loongson_params;
+}
+
+#define ADD_MEMORY_DESCRIPTOR(desc, size)	\
+  ((grub_efi_memory_descriptor_t *) ((char *) (desc) + (size)))
+
+static void
+grub_efi_loongson_init_memory_map (grub_efi_loongson_smbios_table *smbios_table,
+                                   grub_efi_memory_descriptor_t *mmap_buf,
+                                   grub_efi_uintn_t mmap_size,
+                                   grub_efi_uintn_t desc_size)
+{
+  grub_efi_loongson_memory_map *src = (void *) smbios_table->lp.memory_offset;
+  grub_efi_loongson_memory_map *dst = &loongson_boot_params->memory_map;
+  grub_efi_memory_descriptor_t *mmap_end;
+  grub_efi_memory_descriptor_t *desc;
+  grub_efi_memory_descriptor_t *desc_next;
+  grub_efi_uint32_t mem_types_reserved[] =
+    {
+      1, // GRUB_EFI_RESERVED_MEMORY_TYPE
+      0, // GRUB_EFI_LOADER_CODE
+      0, // GRUB_EFI_LOADER_DATA
+      0, // GRUB_EFI_BOOT_SERVICES_CODE
+      0, // GRUB_EFI_BOOT_SERVICES_DATA
+      1, // GRUB_EFI_RUNTIME_SERVICES_CODE
+      1, // GRUB_EFI_RUNTIME_SERVICES_DATA
+      0, // GRUB_EFI_CONVENTIONAL_MEMORY
+      1, // GRUB_EFI_UNUSABLE_MEMORY
+      0, // GRUB_EFI_ACPI_RECLAIM_MEMORY
+      0, // GRUB_EFI_ACPI_MEMORY_NVS
+      1, // GRUB_EFI_MEMORY_MAPPED_IO
+      1, // GRUB_EFI_MEMORY_MAPPED_IO_PORT_SPACE
+      1, // GRUB_EFI_PAL_CODE
+      1, // GRUB_EFI_PERSISTENT_MEMORY
+    };
+  grub_uint32_t need_sort = 1;
+
+  if (!src)
+    return;
+
+  dst->vers = src->vers;
+  dst->nr_map = 0;
+  dst->mem_freq = src->mem_freq;
+  loongson_params->memory_offset = (grub_uint64_t) dst - (grub_uint64_t) loongson_params;
+
+  if (!mmap_buf || !mmap_size || !desc_size)
+    return;
+
+  mmap_end = ADD_MEMORY_DESCRIPTOR (mmap_buf, mmap_size);
+
+  /* drop reserved */
+  for (desc = mmap_buf,
+       desc_next = desc;
+       desc < mmap_end;
+       desc = ADD_MEMORY_DESCRIPTOR (desc, desc_size))
+    {
+      desc->type = mem_types_reserved[desc->type];
+      if (desc->type)
+        continue;
+
+      if (desc != desc_next)
+        *desc_next = *desc;
+      desc_next = ADD_MEMORY_DESCRIPTOR (desc_next, desc_size);
+    }
+  mmap_end = desc_next;
+
+  /* sort: low->high */
+  while (need_sort)
+    {
+      need_sort = 0;
+
+      for (desc = mmap_buf,
+           desc_next = ADD_MEMORY_DESCRIPTOR (desc, desc_size);
+           (desc < mmap_end) && (desc_next < mmap_end);
+           desc = desc_next,
+           desc_next = ADD_MEMORY_DESCRIPTOR (desc, desc_size))
+        {
+          grub_efi_memory_descriptor_t tmp;
+
+          if (desc->physical_start <= desc_next->physical_start)
+            continue;
+
+          tmp = *desc;
+          *desc = *desc_next;
+          *desc_next = tmp;
+          need_sort = 1;
+        }
+    }
+
+  /* combine continuous memory map */
+  for (desc = mmap_buf,
+       desc_next = ADD_MEMORY_DESCRIPTOR (desc, desc_size);
+       desc_next < mmap_end;
+       desc_next = ADD_MEMORY_DESCRIPTOR (desc_next, desc_size))
+    {
+      grub_efi_physical_address_t prev_end = desc->physical_start + (desc->num_pages << 12);
+
+      if (prev_end == desc_next->physical_start)
+        {
+          desc->num_pages += desc_next->num_pages;
+          continue;
+        }
+
+      desc = ADD_MEMORY_DESCRIPTOR (desc, desc_size);
+      grub_memcpy (desc, desc_next, desc_size);
+    }
+  mmap_end = ADD_MEMORY_DESCRIPTOR (desc, desc_size);
+
+  /* write to loongson memory map */
+  for (desc = mmap_buf;
+       desc < mmap_end;
+       desc = ADD_MEMORY_DESCRIPTOR (desc, desc_size))
+    {
+      grub_efi_physical_address_t physical_start = grub_vtop ((void *) desc->physical_start);
+      grub_efi_physical_address_t physical_end = physical_start + (desc->num_pages << 12);
+
+      physical_start = ALIGN_UP (physical_start, 0x100000);
+      physical_end = ALIGN_DOWN (physical_end, 0x100000);
+
+      if (physical_start >= physical_end || (physical_end - physical_start) < 0x100000)
+        continue;
+
+      dst->map[dst->nr_map].node_id = (desc->physical_start >> 44) & 0xf;
+      dst->map[dst->nr_map].mem_type = (physical_end <= 0x10000000) ?
+                                        GRUB_EFI_LOONGSON_SYSTEM_RAM_LOW :
+                                        GRUB_EFI_LOONGSON_SYSTEM_RAM_HIGH;
+      dst->map[dst->nr_map].mem_start = physical_start;
+      dst->map[dst->nr_map].mem_size = (physical_end - physical_start) >> 20;
+
+      grub_dprintf ("loongson", "memory map %03u: 0x%016lx 0x%016lx @ %u\n",
+                    dst->nr_map, physical_start, physical_end - physical_start,
+                    dst->map[dst->nr_map].node_id);
+
+      dst->nr_map ++;
+    }
+}
+
+#define BYTES_TO_PAGES(bytes)	(((bytes) + 0xfff) >> 12)
+#define SUB_MEMORY_DESCRIPTOR(desc, size)	\
+  ((grub_efi_memory_descriptor_t *) ((char *) (desc) - (size)))
+
+void
+grub_efi_loongson_alloc_boot_params (void)
+{
+  grub_efi_memory_descriptor_t *mmap_buf;
+  grub_efi_memory_descriptor_t *mmap_end;
+  grub_efi_memory_descriptor_t *desc;
+  grub_efi_uintn_t mmap_size;
+  grub_efi_uintn_t desc_size;
+  grub_efi_physical_address_t address;
+  grub_efi_allocate_type_t type;
+  grub_efi_uintn_t pages;
+  grub_efi_status_t status;
+  grub_efi_boot_services_t *b;
+  int mm_status;
+
+  type = GRUB_EFI_ALLOCATE_ADDRESS;
+  pages = BYTES_TO_PAGES (loongson_boot_params_size + loongson_reset_code_size);
+
+  mmap_size = (1 << 12);
+  mmap_buf = grub_malloc (mmap_size);
+  if (!mmap_buf)
+    grub_fatal ("out of memory!");
+
+  mm_status = grub_efi_get_memory_map (&mmap_size, mmap_buf, 0, &desc_size, 0);
+  if (mm_status == 0)
+    {
+      grub_free (mmap_buf);
+      mmap_size += desc_size * 32;
+
+      mmap_buf = grub_malloc (mmap_size);
+      if (!mmap_buf)
+        grub_fatal ("out of memory!");
+
+      mm_status = grub_efi_get_memory_map (&mmap_size, mmap_buf, 0, &desc_size, 0);
+    }
+
+  if (mm_status < 0)
+    grub_fatal ("cannot get memory map!");
+
+  mmap_end = ADD_MEMORY_DESCRIPTOR (mmap_buf, mmap_size);
+
+  for (desc = SUB_MEMORY_DESCRIPTOR (mmap_end, desc_size);
+       desc >= mmap_buf;
+       desc = SUB_MEMORY_DESCRIPTOR (desc, desc_size))
+    {
+      if (desc->type != GRUB_EFI_CONVENTIONAL_MEMORY)
+        continue;
+      if (desc->physical_start >= GRUB_EFI_MAX_USABLE_ADDRESS)
+        continue;
+      if (desc->num_pages < pages)
+        continue;
+
+      address = desc->physical_start;
+      break;
+    }
+
+  grub_free (mmap_buf);
+
+  b = grub_efi_system_table->boot_services;
+  status = efi_call_4 (b->allocate_pages, type, GRUB_EFI_RUNTIME_SERVICES_DATA, pages, &address);
+  if (status != GRUB_EFI_SUCCESS)
+    grub_fatal ("cannot allocate Loongson boot parameters!");
+
+  loongson_boot_params = (void *) ((grub_addr_t) address);
+}
+
+void
+grub_efi_loongson_free_boot_params (void)
+{
+  grub_efi_free_pages ((grub_addr_t) loongson_boot_params,
+                       BYTES_TO_PAGES (loongson_boot_params_size + loongson_reset_code_size));
+}
+
+void *
+grub_efi_loongson_get_smbios_table (void)
+{
+  static grub_efi_loongson_smbios_table *smbios_table; 
+  grub_efi_loongson_boot_params *old_boot_params;
+  struct bootparamsinterface* boot_params;
+  void * tmp_boot_params = NULL;	
+  char * p = NULL;
+  if(smbios_table)
+    return smbios_table;
+
+  tmp_boot_params = grub_efi_loongson_get_boot_params();
+  if(tmp_boot_params == NULL)
+  {
+    grub_dprintf("loongson", "tmp_boot_params is NULL\n");
+    return tmp_boot_params;
+  }
+ 
+  boot_params = (struct bootparamsinterface *)tmp_boot_params;
+  p = (char *)&(boot_params->signature);
+  if(grub_strncmp(p, "BPI", 3) == 0)
+  {
+    grub_dprintf("loongson", "find new bpi\n");
+    return boot_params ? boot_params : 0;
+  }
+  else
+  {
+    old_boot_params = (grub_efi_loongson_boot_params *)tmp_boot_params;
+    return old_boot_params ? &old_boot_params->efi.smbios : 0;
+  }
+
+}
+
+int
+grub_efi_is_loongson (void)
+{
+  return grub_efi_loongson_get_smbios_table () ? 1 : 0;
+}
+
+void *
+grub_efi_loongson_get_boot_params (void)
+{
+  static void * boot_params = NULL;
+  grub_efi_configuration_table_t *tables;
+  grub_efi_guid_t smbios_guid = GRUB_EFI_LOONGSON_SMBIOS_TABLE_GUID;
+  unsigned int i;
+
+  if (boot_params)
+    return boot_params;
+
+  /* Look for Loongson SMBIOS in UEFI config tables. */
+  tables = grub_efi_system_table->configuration_table;
+
+  for (i = 0; i < grub_efi_system_table->num_table_entries; i++)
+    if (grub_memcmp (&tables[i].vendor_guid, &smbios_guid, sizeof (smbios_guid)) == 0)
+      {
+        boot_params= tables[i].vendor_table;
+        grub_dprintf ("loongson", "found registered SMBIOS @ %p\n", boot_params);
+        break;
+      }
+  return boot_params;
+}
+
+grub_uint8_t
+grub_efi_loongson_calculatesum8 (const grub_uint8_t *buffer, grub_efi_uintn_t length)
+{
+  grub_uint8_t sum;
+  grub_efi_uintn_t count;
+
+  for (sum = 0, count = 0; count < length; count++)
+  {
+    sum = (grub_uint8_t) (sum + *(buffer + count));
+  }
+  return sum;
+}
+
+grub_uint8_t
+grub_efi_loongson_grub_calculatechecksum8 (const grub_uint8_t *buffer, grub_efi_uintn_t length)
+{
+  grub_uint8_t checksum;
+
+  checksum = grub_efi_loongson_calculatesum8(buffer, length);
+
+  return (grub_uint8_t) (0x100 - checksum);
+}
+
+
+grub_uint32_t 
+grub_efi_loongson_memmap_sort(struct memmap array[], grub_uint32_t length, mem_map * bpmem, grub_uint32_t index, grub_uint32_t memtype)
+{
+  grub_uint64_t tempmemsize = 0;
+  grub_uint32_t j = 0;
+  grub_uint32_t t = 0;
+
+  for(j = 0; j < length;)
+  {
+    tempmemsize = array[j].memsize;
+    for(t = j + 1; t < length; t++)
+    {
+      if(array[j].memstart + tempmemsize == array[t].memstart) 
+      {
+        tempmemsize += array[t].memsize;
+      }
+      else
+      {            
+        break;
+      }
+   }
+   bpmem->map[index].memtype = memtype;
+   bpmem->map[index].memstart = array[j].memstart;
+   bpmem->map[index].memsize = tempmemsize;
+   grub_dprintf("loongson", "map[%d]:type %x, start 0x%llx, end 0x%llx\n",
+		   index,
+		   bpmem->map[index].memtype,
+		   (unsigned long long)bpmem->map[index].memstart,
+		   (unsigned long long)bpmem->map[index].memstart+ bpmem->map[index].memsize
+	       );
+   j = t;
+   index++;
+  }
+  return index;
+}
+

GRUB2/MOD_SRC/grub-2.04/grub-core/lib/mips64/efi/loongson_asm.S

+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2017  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/symbol.h>
+
+	.file 	"loongson.S"
+	.text
+
+	.set		push
+	.set		noreorder
+	.align		4
+
+VARIABLE (grub_efi_loongson_reset_start)
+
+VARIABLE (grub_efi_loongson_reset_system_addr)
+	.dword		0
+
+reset_system:
+	bal		1f
+	move		$a1, $zero
+1:
+	ld		$t9, -16($ra)
+	move		$a2, $zero
+	jalr		$t9
+	move		$a3, $zero
+
+FUNCTION(grub_efi_loongson_reset_cold)
+	b		reset_system
+	li		$a0, 0
+
+FUNCTION(grub_efi_loongson_reset_warm)
+	b		reset_system
+	li		$a0, 1
+
+FUNCTION(grub_efi_loongson_reset_shutdown)
+	b		reset_system
+	li		$a0, 2
+
+FUNCTION(grub_efi_loongson_reset_suspend)
+	b		reset_system
+	li		$a0, 3
+
+VARIABLE (grub_efi_loongson_reset_end)
+
+	.set		pop
+

GRUB2/MOD_SRC/grub-2.04/grub-core/lib/mips64/relocator.c

+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2017  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/mm.h>
+#include <grub/misc.h>
+
+#include <grub/types.h>
+#include <grub/types.h>
+#include <grub/err.h>
+#include <grub/cache.h>
+
+#include <grub/mips64/relocator.h>
+#include <grub/relocator_private.h>
+
+extern grub_uint8_t grub_relocator_forward_start;
+extern grub_uint8_t grub_relocator_forward_end;
+extern grub_uint8_t grub_relocator_backward_start;
+extern grub_uint8_t grub_relocator_backward_end;
+
+#define REGW_SIZEOF (6 * sizeof (grub_uint32_t))
+#define JUMP_SIZEOF (2 * sizeof (grub_uint32_t))
+
+#define RELOCATOR_SRC_SIZEOF(x) (&grub_relocator_##x##_end \
+				 - &grub_relocator_##x##_start)
+#define RELOCATOR_SIZEOF(x)	(RELOCATOR_SRC_SIZEOF(x) \
+				 + REGW_SIZEOF * 3)
+grub_size_t grub_relocator_align = sizeof (grub_uint64_t);
+grub_size_t grub_relocator_forward_size;
+grub_size_t grub_relocator_backward_size;
+grub_size_t grub_relocator_jumper_size = JUMP_SIZEOF + REGW_SIZEOF;
+
+void
+grub_cpu_relocator_init (void)
+{
+  grub_relocator_forward_size = RELOCATOR_SIZEOF(forward);
+  grub_relocator_backward_size = RELOCATOR_SIZEOF(backward);
+}
+
+static void
+write_reg (int regn, grub_uint64_t val, void **target)
+{
+  grub_uint32_t lui;
+  grub_uint32_t ori;
+  grub_uint32_t dsll;
+
+  /* lui $r, 0 */
+  lui = (0x3c00 | regn) << 16;
+  /* ori $r, $r, 0 */
+  ori = (0x3400 | (regn << 5) | regn) << 16;
+  /* dsll $r, $r, 16 */
+  dsll = (regn << 16) | (regn << 11) | (16 << 6) | 56;
+
+  /* lui $r, val[63:48].  */
+  *(grub_uint32_t *) *target = lui | (grub_uint16_t) (val >> 48);
+  *target = ((grub_uint32_t *) *target) + 1;
+  /* ori $r, val[47:32].  */
+  *(grub_uint32_t *) *target = ori | (grub_uint16_t) (val >> 32);
+  *target = ((grub_uint32_t *) *target) + 1;
+  /* dsll $r, $r, 16 */
+  *(grub_uint32_t *) *target = dsll;
+  *target = ((grub_uint32_t *) *target) + 1;
+  /* ori $r, val[31:16].  */
+  *(grub_uint32_t *) *target = ori | (grub_uint16_t) (val >> 16);
+  *target = ((grub_uint32_t *) *target) + 1;
+  /* dsll $r, $r, 16 */
+  *(grub_uint32_t *) *target = dsll;
+  *target = ((grub_uint32_t *) *target) + 1;
+  /* ori $r, val[15:0].  */
+  *(grub_uint32_t *) *target = ori | (grub_uint16_t) val;
+  *target = ((grub_uint32_t *) *target) + 1;
+}
+
+static void
+write_jump (int regn, void **target)
+{
+  /* j $r.  */
+  *(grub_uint32_t *) *target = (regn << 21) | 0x8;
+  *target = ((grub_uint32_t *) *target) + 1;
+  /* nop.  */
+  *(grub_uint32_t *) *target = 0;
+  *target = ((grub_uint32_t *) *target) + 1;
+}
+
+void
+grub_cpu_relocator_jumper (void *rels, grub_addr_t addr)
+{
+  write_reg (1, addr, &rels);
+  write_jump (1, &rels);
+}
+
+void
+grub_cpu_relocator_backward (void *ptr0, void *src, void *dest,
+			     grub_size_t size)
+{
+  void *ptr = ptr0;
+  write_reg (8, (grub_uint64_t) src, &ptr);
+  write_reg (9, (grub_uint64_t) dest, &ptr);
+  write_reg (10, (grub_uint64_t) size, &ptr);
+  grub_memcpy (ptr, &grub_relocator_backward_start,
+	       RELOCATOR_SRC_SIZEOF (backward));
+}
+
+void
+grub_cpu_relocator_forward (void *ptr0, void *src, void *dest,
+			     grub_size_t size)
+{
+  void *ptr = ptr0;
+  write_reg (8, (grub_uint64_t) src, &ptr);
+  write_reg (9, (grub_uint64_t) dest, &ptr);
+  write_reg (10, (grub_uint64_t) size, &ptr);
+  grub_memcpy (ptr, &grub_relocator_forward_start,
+	       RELOCATOR_SRC_SIZEOF (forward));
+}
+
+grub_err_t
+grub_relocator64_boot (struct grub_relocator *rel,
+		       struct grub_relocator64_state state)
+{
+  grub_relocator_chunk_t ch;
+  void *ptr;
+  grub_err_t err;
+  void *relst;
+  grub_size_t relsize;
+  grub_size_t stateset_size = 31 * REGW_SIZEOF + JUMP_SIZEOF;
+  unsigned i;
+  grub_addr_t vtarget;
+
+  err = grub_relocator_alloc_chunk_align (rel, &ch, 0,
+					  (0xffffffff - stateset_size)
+					  + 1, stateset_size,
+					  grub_relocator_align,
+					  GRUB_RELOCATOR_PREFERENCE_NONE, 0);
+  if (err)
+    return err;
+
+  ptr = get_virtual_current_address (ch);
+  for (i = 1; i < 32; i++)
+    write_reg (i, state.gpr[i], &ptr);
+  write_jump (state.jumpreg, &ptr);
+
+  vtarget = (grub_addr_t) grub_map_memory (get_physical_target_address (ch),
+					   stateset_size);
+
+  err = grub_relocator_prepare_relocs (rel, vtarget, &relst, &relsize);
+  if (err)
+    return err;
+
+  grub_arch_sync_caches ((void *) relst, relsize);
+
+  ((void (*) (void)) relst) ();
+
+  /* Not reached.  */
+  return GRUB_ERR_NONE;
+}

GRUB2/MOD_SRC/grub-2.04/grub-core/lib/mips64/relocator_asm.S

+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2017  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/symbol.h>
+
+	.p2align	4	/* force 16-byte alignment */
+
+	.set push
+	.set noreorder
+	.set nomacro
+
+VARIABLE (grub_relocator_forward_start)
+
+copycont1:
+	ld $11,0($8)
+	sd $11,0($9)
+	daddiu $8, $8, 8
+	daddiu $10, $10, -8
+	bne $10, $0, copycont1
+	 daddiu $9, $9, 8
+
+VARIABLE (grub_relocator_forward_end)
+
+VARIABLE (grub_relocator_backward_start)
+
+	daddu $9, $9, $10
+	daddu $8, $8, $10
+	/* Backward movsl is implicitly off-by-one.  compensate that.  */
+	daddiu $9, $9, -8
+	daddiu $8, $8, -8
+copycont2:
+	ld $11,0($8)
+	sd $11,0($9)
+	daddiu $8, $8, -8
+	daddiu $10, $10, -8
+	bne $10, $0, copycont2
+	 daddiu $9, $9, -8
+
+VARIABLE (grub_relocator_backward_end)
+
+	.set pop

GRUB2/MOD_SRC/grub-2.04/grub-core/lib/mips64/setjmp.S

+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2003,2007,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/symbol.h>
+#include <grub/dl.h>
+#include <grub/mips64/asm.h>
+
+	.file	"setjmp.S"
+
+GRUB_MOD_LICENSE "GPLv3+"
+
+	.text
+
+/*
+ * int grub_setjmp (grub_jmp_buf env)
+ */
+FUNCTION(grub_setjmp)
+	GRUB_ASM_REG_S $s0, 0($a0)
+	GRUB_ASM_REG_S $s1, 8($a0)
+	GRUB_ASM_REG_S $s2, 16($a0)
+	GRUB_ASM_REG_S $s3, 24($a0)
+	GRUB_ASM_REG_S $s4, 32($a0)
+	GRUB_ASM_REG_S $s5, 40($a0)
+	GRUB_ASM_REG_S $s6, 48($a0)
+	GRUB_ASM_REG_S $s7, 56($a0)
+	GRUB_ASM_REG_S $s8, 64($a0)
+	GRUB_ASM_REG_S $gp, 72($a0)
+	GRUB_ASM_REG_S $sp, 80($a0)
+	GRUB_ASM_REG_S $ra, 88($a0)
+	move $v0, $zero
+	move $v1, $zero
+	jr $ra
+	 nop
+/*
+ * int grub_longjmp (grub_jmp_buf env, int val)
+ */
+FUNCTION(grub_longjmp)
+	GRUB_ASM_REG_L $s0, 0($a0)
+	GRUB_ASM_REG_L $s1, 8($a0)
+	GRUB_ASM_REG_L $s2, 16($a0)
+	GRUB_ASM_REG_L $s3, 24($a0)
+	GRUB_ASM_REG_L $s4, 32($a0)
+	GRUB_ASM_REG_L $s5, 40($a0)
+	GRUB_ASM_REG_L $s6, 48($a0)
+	GRUB_ASM_REG_L $s7, 56($a0)
+	GRUB_ASM_REG_L $s8, 64($a0)
+	GRUB_ASM_REG_L $gp, 72($a0)
+	GRUB_ASM_REG_L $sp, 80($a0)
+	GRUB_ASM_REG_L $ra, 88($a0)
+	addiu $v0, $zero, 1
+	movn $v0, $a1, $a1
+	move $v1, $zero
+	jr $ra
+	 nop

GRUB2/MOD_SRC/grub-2.04/grub-core/lib/relocator.c

+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009, 2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/relocator.h>
+#include <grub/relocator_private.h>
+#include <grub/mm_private.h>
+#include <grub/misc.h>
+#include <grub/cache.h>
+#include <grub/memory.h>
+#include <grub/dl.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+struct grub_relocator
+{
+  struct grub_relocator_chunk *chunks;
+  grub_phys_addr_t postchunks;
+  grub_phys_addr_t highestaddr;
+  grub_phys_addr_t highestnonpostaddr;
+  grub_size_t relocators_size;
+};
+
+struct grub_relocator_subchunk
+{
+  enum {CHUNK_TYPE_IN_REGION, CHUNK_TYPE_REGION_START,
+#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
+	CHUNK_TYPE_FIRMWARE, CHUNK_TYPE_LEFTOVER
+#endif
+  } type;
+  grub_mm_region_t reg;
+  grub_phys_addr_t start;
+  grub_size_t size;
+  grub_size_t pre_size;
+  struct grub_relocator_extra_block *extra;
+#if GRUB_RELOCATOR_HAVE_LEFTOVERS
+  struct grub_relocator_fw_leftover *pre, *post;
+#endif
+};
+
+struct grub_relocator_chunk
+{
+  struct grub_relocator_chunk *next;
+  grub_phys_addr_t src;
+  void *srcv;
+  grub_phys_addr_t target;
+  grub_size_t size;
+  struct grub_relocator_subchunk *subchunks;
+  unsigned nsubchunks;
+};
+
+struct grub_relocator_extra_block
+{
+  struct grub_relocator_extra_block *next;
+  struct grub_relocator_extra_block **prev;
+  grub_phys_addr_t start;
+  grub_phys_addr_t end;
+};
+
+#if GRUB_RELOCATOR_HAVE_LEFTOVERS
+struct grub_relocator_fw_leftover
+{
+  struct grub_relocator_fw_leftover *next;
+  struct grub_relocator_fw_leftover **prev;
+  grub_phys_addr_t quantstart;
+  grub_uint8_t freebytes[GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT / 8];
+};
+
+static struct grub_relocator_fw_leftover *leftovers;
+#endif
+
+static struct grub_relocator_extra_block *extra_blocks;
+
+void *
+get_virtual_current_address (grub_relocator_chunk_t in)
+{
+  return in->srcv;
+}
+
+grub_phys_addr_t
+get_physical_target_address (grub_relocator_chunk_t in)
+{
+  return in->target;
+}
+
+struct grub_relocator *
+grub_relocator_new (void)
+{
+  struct grub_relocator *ret;
+
+  grub_cpu_relocator_init ();
+
+  ret = grub_zalloc (sizeof (struct grub_relocator));
+  if (!ret)
+    return NULL;
+    
+  ret->postchunks = ~(grub_phys_addr_t) 0;
+  ret->relocators_size = grub_relocator_jumper_size;
+  grub_dprintf ("relocator", "relocators_size=%lu\n",
+		(unsigned long) ret->relocators_size);
+  return ret;
+}
+
+#define DIGITSORT_BITS 8
+#define DIGITSORT_MASK ((1 << DIGITSORT_BITS) - 1)
+#define BITS_IN_BYTE 8
+
+#define max(a, b) (((a) > (b)) ? (a) : (b))
+#define min(a, b) (((a) < (b)) ? (a) : (b))
+
+static inline int
+is_start (int type)
+{
+  return !(type & 1) && (type != COLLISION_START);
+}
+
+static void
+allocate_regstart (grub_phys_addr_t addr, grub_size_t size, grub_mm_region_t rb,
+		   grub_mm_region_t *regancestor, grub_mm_header_t hancestor)
+{
+  grub_addr_t newreg_start, newreg_raw_start
+    = (grub_addr_t) rb + (addr - grub_vtop (rb)) + size;
+  grub_addr_t newreg_size, newreg_presize;
+  grub_mm_header_t new_header;
+  grub_mm_header_t hb = (grub_mm_header_t) (rb + 1);
+
+#ifdef DEBUG_RELOCATOR_NOMEM_DPRINTF  
+  grub_dprintf ("relocator", "ra = %p, rb = %p\n", regancestor, rb);
+#endif
+  newreg_start = ALIGN_UP (newreg_raw_start, GRUB_MM_ALIGN);
+  newreg_presize = newreg_start - newreg_raw_start;
+  newreg_size = rb->size - (newreg_start - (grub_addr_t) rb);
+  if ((hb->size << GRUB_MM_ALIGN_LOG2) >= newreg_start
+      - (grub_addr_t) rb)
+    {
+      grub_mm_header_t newhnext = hb->next;
+      grub_size_t newhsize = ((hb->size << GRUB_MM_ALIGN_LOG2)
+			      - (newreg_start
+				 - (grub_addr_t) rb)) >> GRUB_MM_ALIGN_LOG2;
+      new_header = (void *) (newreg_start + sizeof (*rb));
+      if (newhnext == hb)
+	newhnext = new_header;
+      new_header->next = newhnext;
+      new_header->size = newhsize;
+      new_header->magic = GRUB_MM_FREE_MAGIC;
+    }
+  else
+    {
+      new_header = hb->next;
+      if (new_header == hb)
+	new_header = (void *) (newreg_start + sizeof (*rb));	    
+    }
+  {
+    struct grub_mm_header *newregfirst = rb->first;
+    struct grub_mm_region *newregnext = rb->next;
+    struct grub_mm_region *newreg = (void *) newreg_start;
+    hancestor->next = new_header;
+    if (newregfirst == hb)
+      newregfirst = new_header;
+    newreg->first = newregfirst;
+    newreg->next = newregnext;
+    newreg->pre_size = newreg_presize;
+    newreg->size = newreg_size;
+    *regancestor = newreg;
+    {
+      grub_mm_header_t h = newreg->first, hp = NULL;
+      do
+	{
+	  if ((void *) h < (void *) (newreg + 1))
+	    grub_fatal ("Failed to adjust memory region: %p, %p, %p, %p, %p",
+			newreg, newreg->first, h, hp, hb);
+#ifdef DEBUG_RELOCATOR_NOMEM_DPRINTF
+	  if ((void *) h == (void *) (newreg + 1))
+	    grub_dprintf ("relocator",
+			  "Free start memory region: %p, %p, %p, %p, %p",
+			  newreg, newreg->first, h, hp, hb);
+#endif
+	  hp = h;
+	  h = h->next;
+	}
+      while (h != newreg->first);
+    }
+  }
+}
+
+static void
+allocate_inreg (grub_phys_addr_t paddr, grub_size_t size,
+		grub_mm_header_t hb, grub_mm_header_t hbp,
+		grub_mm_region_t rb)
+{
+  struct grub_mm_header *foll = NULL;
+  grub_addr_t vaddr = (grub_addr_t) hb + (paddr - grub_vtop (hb));
+
+#ifdef DEBUG_RELOCATOR_NOMEM_DPRINTF
+  grub_dprintf ("relocator", "inreg paddr = 0x%lx, size = %lu,"
+		" hb = %p, hbp = %p, rb = %p, vaddr = 0x%lx\n",
+		(unsigned long) paddr, (unsigned long) size, hb, hbp,
+		rb, (unsigned long) vaddr);
+#endif
+    
+  if (ALIGN_UP (vaddr + size, GRUB_MM_ALIGN) + GRUB_MM_ALIGN
+      <= (grub_addr_t) (hb + hb->size))
+    {
+      foll = (void *) ALIGN_UP (vaddr + size, GRUB_MM_ALIGN);
+      foll->magic = GRUB_MM_FREE_MAGIC;
+      foll->size = hb + hb->size - foll;
+#ifdef DEBUG_RELOCATOR_NOMEM_DPRINTF
+      grub_dprintf ("relocator", "foll = %p, foll->size = %lu\n", foll,
+		    (unsigned long) foll->size);
+#endif
+    }
+
+  if (vaddr - (grub_addr_t) hb >= sizeof (*hb))
+    {
+      hb->size = ((vaddr - (grub_addr_t) hb) >> GRUB_MM_ALIGN_LOG2);
+      if (foll)
+	{
+	  foll->next = hb;
+	  hbp->next = foll;
+	  if (rb->first == hb)
+	    {
+	      rb->first = foll;
+	    }
+	}
+    }
+  else
+    {
+      if (foll)
+	{
+	  foll->next = hb->next;
+	}
+      else
+	foll = hb->next;
+	
+      hbp->next = foll;
+      if (rb->first == hb)
+	{
+	  rb->first = foll;
+	}
+      if (rb->first == hb)
+	{
+	  rb->first = (void *) (rb + 1);
+	}
+    }
+}
+
+#if GRUB_RELOCATOR_HAVE_LEFTOVERS
+static void
+check_leftover (struct grub_relocator_fw_leftover *lo)
+{
+  unsigned i;
+  for (i = 0; i < sizeof (lo->freebytes); i++)
+    if (lo->freebytes[i] != 0xff)
+      return;
+  grub_relocator_firmware_free_region (lo->quantstart,
+				       GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT);
+  *lo->prev = lo->next;
+  if (lo->next)
+    lo->next->prev = lo->prev;
+}
+#endif
+
+static void
+free_subchunk (const struct grub_relocator_subchunk *subchu)
+{
+  switch (subchu->type)
+    {
+    case CHUNK_TYPE_REGION_START:
+      {
+	grub_mm_region_t r1, r2, *rp;
+	grub_mm_header_t h;
+	grub_size_t pre_size;
+	r1 = subchu->reg;
+	r2 = (grub_mm_region_t) ALIGN_UP ((grub_addr_t) subchu->reg
+					  + (grub_vtop (subchu->reg)
+					     - subchu->start) + subchu->size,
+					  GRUB_MM_ALIGN);
+	for (rp = &grub_mm_base; *rp && *rp != r2; rp = &((*rp)->next));
+	pre_size = subchu->pre_size;
+
+	if (*rp)
+	  {
+	    grub_mm_header_t h2, *hp;
+	    r1->first = r2->first;
+	    r1->next = r2->next;
+	    r1->pre_size = pre_size;
+	    r1->size = r2->size + (r2 - r1) * sizeof (*r2);
+	    *rp = r1;
+	    h = (grub_mm_header_t) (r1 + 1);
+	    h->next = r2->first;
+	    h->magic = GRUB_MM_FREE_MAGIC;
+	    h->size = (r2 - r1 - 1);
+	    for (hp = &r2->first, h2 = *hp; h2->next != r2->first;
+		 hp = &(h2->next), h2 = *hp)
+	      if (h2 == (grub_mm_header_t) (r2 + 1))
+		break;
+	    if (h2 == (grub_mm_header_t) (r2 + 1))
+	      {
+		h->size = h2->size + (h2 - h);
+		h->next = h2->next;
+		*hp = h;
+		if (hp == &r2->first)
+		  {
+		    for (h2 = r2->first; h2->next != r2->first; h2 = h2->next);
+		    h2->next = h;
+		  }
+	      }
+	    else
+	      {
+		h2->next = h;
+	      }
+	  }
+	else
+	  {
+	    r1->pre_size = pre_size;
+	    r1->size = (r2 - r1) * sizeof (*r2);
+	    /* Find where to insert this region.
+	       Put a smaller one before bigger ones,
+	       to prevent fragmentation.  */
+	    for (rp = &grub_mm_base; *rp; rp = &((*rp)->next))
+	      if ((*rp)->size > r1->size)
+		break;
+	    r1->next = *rp;
+	    *rp = r1->next;
+	    h = (grub_mm_header_t) (r1 + 1);
+	    r1->first = h;
+	    h->next = h;
+	    h->magic = GRUB_MM_FREE_MAGIC;
+	    h->size = (r2 - r1 - 1);
+	  }
+	for (r2 = grub_mm_base; r2; r2 = r2->next)
+	  if ((grub_addr_t) r2 + r2->size == (grub_addr_t) r1)
+	    break;
+	if (r2)
+	  {
+	    grub_mm_header_t hl2, hl, g;
+	    g = (grub_mm_header_t) ((grub_addr_t) r2 + r2->size);
+	    g->size = (grub_mm_header_t) r1 - g;
+	    r2->size += r1->size;
+	    for (hl = r2->first; hl->next != r2->first; hl = hl->next);
+	    for (hl2 = r1->first; hl2->next != r1->first; hl2 = hl2->next);
+	    hl2->next = r2->first;
+	    r2->first = r1->first;
+	    hl->next = r2->first;
+	    *rp = (*rp)->next;
+	    grub_free (g + 1);
+	  }
+	break;
+      }
+    case CHUNK_TYPE_IN_REGION:
+      {
+	grub_mm_header_t h = (grub_mm_header_t) ALIGN_DOWN ((grub_addr_t) subchu->start,
+							    GRUB_MM_ALIGN);
+	h->size
+	  = ((subchu->start + subchu->size + GRUB_MM_ALIGN - 1) / GRUB_MM_ALIGN)
+	  - (subchu->start / GRUB_MM_ALIGN) - 1;
+	h->next = h;
+	h->magic = GRUB_MM_ALLOC_MAGIC;
+	grub_free (h + 1);
+	break;
+      }
+#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
+    case CHUNK_TYPE_FIRMWARE:
+    case CHUNK_TYPE_LEFTOVER:
+      {
+	grub_addr_t fstart, fend;
+	fstart = ALIGN_UP (subchu->start,
+			   GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT);
+	fend = ALIGN_DOWN (subchu->start + subchu->size,
+			   GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT);
+	if (fstart < fend)
+	  grub_relocator_firmware_free_region (fstart, fend - fstart);
+#if GRUB_RELOCATOR_HAVE_LEFTOVERS
+	if (subchu->pre)
+	  {
+	    int off = subchu->start - fstart
+	      - GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT;
+	    grub_memset (subchu->pre->freebytes + off / 8 + 1,
+			 0xff, sizeof (subchu->pre->freebytes) - off / 8 - 1);
+	    subchu->pre->freebytes[off / 8] |= ~((1 << (off % 8)) - 1);
+	    check_leftover (subchu->pre);
+	  }
+	if (subchu->post)
+	  {
+	    int off = subchu->start + subchu->size - fend;
+	    grub_memset (subchu->pre->freebytes,
+			 0xff, sizeof (subchu->pre->freebytes) - off / 8);
+	    subchu->pre->freebytes[off / 8] |= ((1 << (8 - (off % 8))) - 1);
+	    check_leftover (subchu->post);
+	  }
+#endif
+	*subchu->extra->prev = subchu->extra->next;
+	grub_free (subchu->extra);
+      }
+      break;
+#endif
+    }  
+}
+
+static int
+malloc_in_range (struct grub_relocator *rel,
+		 grub_addr_t start, grub_addr_t end, grub_addr_t align,
+		 grub_size_t size, struct grub_relocator_chunk *res,
+		 int from_low_priv, int collisioncheck)
+{
+  grub_mm_region_t r, *ra, base_saved;
+  struct grub_relocator_mmap_event *events = NULL, *eventt = NULL, *t;
+  /* 128 is just in case of additional malloc (shouldn't happen).  */
+  unsigned maxevents = 2 + 128;
+  grub_mm_header_t p, pa;
+  unsigned *counter;
+  int nallocs = 0;
+  unsigned j, N = 0;
+  grub_addr_t target = 0;
+
+  grub_dprintf ("relocator",
+		"trying to allocate in 0x%lx-0x%lx aligned 0x%lx size 0x%lx\n",
+		(unsigned long) start, (unsigned long) end,
+		(unsigned long) align, (unsigned long) size);
+
+  start = ALIGN_UP (start, align);
+  end = ALIGN_DOWN (end - size, align) + size;
+
+  if (end < start + size)
+    return 0;
+
+  /* We have to avoid any allocations when filling scanline events. 
+     Hence 2-stages.
+   */
+  for (r = grub_mm_base; r; r = r->next)
+    {
+      p = r->first;
+      do
+	{
+	  if ((grub_addr_t) p < (grub_addr_t) (r + 1)
+	      || (grub_addr_t) p >= (grub_addr_t) (r + 1) + r->size)
+	    grub_fatal ("%d: out of range pointer: %p\n", __LINE__, p);
+	  maxevents += 2;
+	  p = p->next;
+	}
+      while (p != r->first);
+      maxevents += 4;
+    }
+
+  if (collisioncheck && rel)
+    {
+      struct grub_relocator_chunk *chunk;
+      for (chunk = rel->chunks; chunk; chunk = chunk->next)
+	maxevents += 2;
+    }
+
+#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
+  {
+    struct grub_relocator_extra_block *cur;
+    for (cur = extra_blocks; cur; cur = cur->next)
+      maxevents += 2;
+  }
+  for (r = grub_mm_base; r; r = r->next)
+    maxevents += 2;
+
+  maxevents += grub_relocator_firmware_get_max_events ();
+#endif
+
+#if GRUB_RELOCATOR_HAVE_LEFTOVERS
+  {
+    struct grub_relocator_fw_leftover *cur;
+    for (cur = leftovers; cur; cur = cur->next)
+      {
+	int l = 0;
+	unsigned i;
+	for (i = 0; i < GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT; i++)
+	  {
+	    if (l != ((cur->freebytes[i / 8] >> (i % 8)) & 1))
+	      maxevents++;
+	    l = ((cur->freebytes[i / 8] >> (i % 8)) & 1);
+	  }
+	if (l)
+	  maxevents++;
+      }
+  }
+#endif
+
+  eventt = grub_malloc (maxevents * sizeof (events[0]));
+  counter = grub_malloc ((DIGITSORT_MASK + 2) * sizeof (counter[0]));
+  events = grub_malloc (maxevents * sizeof (events[0]));
+  if (!events || !eventt || !counter)
+    {
+      grub_dprintf ("relocator", "events or counter allocation failed %d\n",
+		    maxevents);
+      grub_free (events);
+      grub_free (eventt);
+      grub_free (counter);
+      return 0;
+    }
+
+  if (collisioncheck && rel)
+    {
+      struct grub_relocator_chunk *chunk;
+      for (chunk = rel->chunks; chunk; chunk = chunk->next)
+	{
+	  events[N].type = COLLISION_START;
+	  events[N].pos = chunk->target;
+	  N++;
+	  events[N].type = COLLISION_END;
+	  events[N].pos = chunk->target + chunk->size;
+	  N++;
+	}
+    }
+
+#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
+  for (r = grub_mm_base; r; r = r->next)
+    {
+#ifdef DEBUG_RELOCATOR_NOMEM_DPRINTF
+      grub_dprintf ("relocator", "Blocking at 0x%lx-0x%lx\n",
+		    (unsigned long) r - r->pre_size, 
+		    (unsigned long) (r + 1) + r->size);
+#endif
+      events[N].type = FIRMWARE_BLOCK_START;
+      events[N].pos = (grub_addr_t) r - r->pre_size;
+      N++;
+      events[N].type = FIRMWARE_BLOCK_END;
+      events[N].pos = (grub_addr_t) (r + 1) + r->size;
+      N++;
+    }
+  {
+    struct grub_relocator_extra_block *cur;
+    for (cur = extra_blocks; cur; cur = cur->next)
+      {
+#ifdef DEBUG_RELOCATOR_NOMEM_DPRINTF
+	grub_dprintf ("relocator", "Blocking at 0x%lx-0x%lx\n",
+		      (unsigned long) cur->start, (unsigned long) cur->end);
+#endif
+	events[N].type = FIRMWARE_BLOCK_START;
+	events[N].pos = cur->start;
+	N++;
+	events[N].type = FIRMWARE_BLOCK_END;
+	events[N].pos = cur->end;
+	N++;
+      }
+  }
+
+  N += grub_relocator_firmware_fill_events (events + N);
+
+#if GRUB_RELOCATOR_HAVE_LEFTOVERS
+  {
+    struct grub_relocator_fw_leftover *cur;
+    for (cur = leftovers; cur; cur = cur->next)
+      {
+	unsigned i;
+	int l = 0;
+	for (i = 0; i < GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT; i++)
+	  {
+	    if (l != ((cur->freebytes[i / 8] >> (i % 8)) & 1))
+	      {
+		events[N].type = l ? REG_LEFTOVER_END : REG_LEFTOVER_START;
+		events[N].pos = cur->quantstart + i;
+		events[N].leftover = cur;
+		N++;
+	      }
+	    l = ((cur->freebytes[i / 8] >> (i % 8)) & 1);
+	  }
+	if (l)
+	  {
+	    events[N].type = REG_LEFTOVER_END;
+	    events[N].pos = cur->quantstart + i;
+	    events[N].leftover = cur;
+	    N++;
+	  }
+      }
+  }
+#endif
+#endif
+
+  /* No malloc from this point.  */
+  base_saved = grub_mm_base;
+  grub_mm_base = NULL;
+
+  for (ra = &base_saved, r = *ra; r; ra = &(r->next), r = *ra)
+    {
+      pa = r->first;
+      p = pa->next;
+      if (p->magic == GRUB_MM_ALLOC_MAGIC)
+	continue;
+      do 
+	{
+	  if (p->magic != GRUB_MM_FREE_MAGIC)
+	    grub_fatal ("%s:%d free magic broken at %p (0x%x)\n",
+			__FILE__,
+			__LINE__, p, p->magic);
+	  if (p == (grub_mm_header_t) (r + 1))
+	    {
+	      events[N].type = REG_BEG_START;
+	      events[N].pos = grub_vtop (r) - r->pre_size;
+	      events[N].reg = r;
+	      events[N].regancestor = ra;
+	      events[N].head = p;
+	      events[N].hancestor = pa;
+	      N++;
+	      events[N].type = REG_BEG_END;
+	      events[N].pos = grub_vtop (p + p->size) - sizeof (*r)
+		- sizeof (struct grub_mm_header);
+	      N++;
+	    }
+	  else
+	    {
+	      events[N].type = IN_REG_START;
+	      events[N].pos = grub_vtop (p);
+	      events[N].head = p;
+	      events[N].hancestor = pa;
+	      events[N].reg = r;
+	      N++;
+	      events[N].type = IN_REG_END;
+	      events[N].pos = grub_vtop (p + p->size);
+	      N++;
+	    }
+	  pa = p;
+	  p = pa->next;
+	}
+      while (pa != r->first);
+    }
+
+  /* Put ending events after starting events.  */
+  {
+    int st = 0, e = N / 2;
+    for (j = 0; j < N; j++)
+      if (is_start (events[j].type) || events[j].type == COLLISION_START)
+	eventt[st++] = events[j];
+      else
+	eventt[e++] = events[j];
+    t = eventt;
+    eventt = events;
+    events = t;
+  }
+
+  {
+    unsigned i;
+    for (i = 0; i < (BITS_IN_BYTE * sizeof (grub_addr_t) / DIGITSORT_BITS);
+	 i++)
+      {
+	grub_memset (counter, 0, (1 + (1 << DIGITSORT_BITS)) * sizeof (counter[0]));
+	for (j = 0; j < N; j++)
+	  counter[((events[j].pos >> (DIGITSORT_BITS * i)) 
+		   & DIGITSORT_MASK) + 1]++;
+	for (j = 0; j <= DIGITSORT_MASK; j++)
+	  counter[j+1] += counter[j];
+	for (j = 0; j < N; j++)
+	  eventt[counter[((events[j].pos >> (DIGITSORT_BITS * i)) 
+			  & DIGITSORT_MASK)]++] = events[j];
+	t = eventt;
+	eventt = events;
+	events = t;
+      }
+  }
+
+#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
+ retry:
+#endif
+
+  /* Now events are nicely sorted.  */
+  {
+    int nstarted = 0, ncollisions = 0, nstartedfw = 0, nblockfw = 0;
+#if GRUB_RELOCATOR_HAVE_LEFTOVERS
+    int nlefto = 0;
+#else
+    const int nlefto = 0;
+#endif
+    grub_addr_t starta = 0;
+    for (j = from_low_priv ? 0 : N - 1; from_low_priv ? j < N : (j + 1); 
+	 from_low_priv ? j++ : j--)
+      {
+	int isinsidebefore, isinsideafter;
+	isinsidebefore = (!ncollisions && (nstarted || (((nlefto || nstartedfw)
+							 && !nblockfw))));
+	switch (events[j].type)
+	  {
+#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
+	  case REG_FIRMWARE_START:
+	    nstartedfw++;
+	    break;
+
+	  case REG_FIRMWARE_END:
+	    nstartedfw--;
+	    break;
+
+	  case FIRMWARE_BLOCK_START:
+	    nblockfw++;
+	    break;
+
+	  case FIRMWARE_BLOCK_END:
+	    nblockfw--;
+	    break;
+#endif
+
+#if GRUB_RELOCATOR_HAVE_LEFTOVERS
+	  case REG_LEFTOVER_START:
+	    nlefto++;
+	    break;
+
+	  case REG_LEFTOVER_END:
+	    nlefto--;
+	    break;
+#endif
+
+	  case COLLISION_START:
+	    ncollisions++;
+	    break;
+
+	  case COLLISION_END:
+	    ncollisions--;
+	    break;
+
+	  case IN_REG_START:
+	  case REG_BEG_START:
+	    nstarted++;
+	    break;
+
+	  case IN_REG_END:
+	  case REG_BEG_END:
+	    nstarted--;
+	    break;
+	  }
+	isinsideafter = (!ncollisions && (nstarted || ((nlefto || nstartedfw) 
+						       && !nblockfw)));
+	if (from_low_priv) {
+	  if (!isinsidebefore && isinsideafter)
+	    starta = ALIGN_UP (events[j].pos, align);
+
+	  if (isinsidebefore && !isinsideafter)
+	    {
+	      target = starta;
+	      if (target < start)
+		target = start;
+	      if (target + size <= end && target + size <= events[j].pos)
+		/* Found an usable address.  */
+		goto found;
+	    }
+	} else {
+	  if (!isinsidebefore && isinsideafter)
+	    {
+	      if (events[j].pos >= size)
+		starta = ALIGN_DOWN (events[j].pos - size, align) + size;
+	      else
+		starta = 0;
+	    }
+	  if (isinsidebefore && !isinsideafter && starta >= size)
+	    {
+	      target = starta - size;
+	      if (target > end - size)
+		target = end - size;
+	      if (target >= start && target >= events[j].pos)
+		goto found;
+	    }
+	}
+      }
+  }
+
+  grub_mm_base = base_saved;
+  grub_free (events);
+  grub_free (eventt);
+  grub_free (counter);
+  return 0;
+
+ found:
+  {
+    int inreg = 0, regbeg = 0, ncol = 0;
+#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
+    int fwin = 0, fwb = 0, fwlefto = 0;
+#endif
+#if GRUB_RELOCATOR_HAVE_LEFTOVERS
+    int last_lo = 0;
+#endif
+    int last_start = 0;
+    for (j = 0; j < N; j++)
+      {
+	int typepre;
+	if (ncol)
+	  typepre = -1;
+	else if (regbeg)
+	  typepre = CHUNK_TYPE_REGION_START;
+	else if (inreg)
+	  typepre = CHUNK_TYPE_IN_REGION;
+#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
+	else if (fwin && !fwb)
+	  typepre = CHUNK_TYPE_FIRMWARE;
+	else if (fwlefto && !fwb)
+	  typepre = CHUNK_TYPE_LEFTOVER;
+#endif
+	else
+	  typepre = -1;
+
+	if (j != 0 && events[j - 1].pos != events[j].pos)
+	  {
+	    grub_addr_t alloc_start, alloc_end;
+	    alloc_start = max (events[j - 1].pos, target);
+	    alloc_end = min (events[j].pos, target + size);
+	    if (alloc_end > alloc_start)
+	      {
+		switch (typepre)
+		  {
+		  case CHUNK_TYPE_REGION_START:
+		    allocate_regstart (alloc_start, alloc_end - alloc_start,
+				       events[last_start].reg,
+				       events[last_start].regancestor,
+				       events[last_start].hancestor);
+		    /* TODO: maintain a reverse lookup tree for hancestor.  */
+		    {
+		      unsigned k;
+		      for (k = 0; k < N; k++)
+			if (events[k].hancestor == events[last_start].head)
+			  events[k].hancestor = events[last_start].hancestor;
+		    }
+		    break;
+		  case CHUNK_TYPE_IN_REGION:
+		    allocate_inreg (alloc_start, alloc_end - alloc_start,
+				    events[last_start].head,
+				    events[last_start].hancestor,
+				    events[last_start].reg);
+		    {
+		      unsigned k;
+		      for (k = 0; k < N; k++)
+			if (events[k].hancestor == events[last_start].head)
+			  events[k].hancestor = events[last_start].hancestor;
+		    }
+		    break;
+#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
+		  case CHUNK_TYPE_FIRMWARE:
+		    {
+		      grub_addr_t fstart, fend;
+		      fstart
+			= ALIGN_DOWN (alloc_start,
+				      GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT);
+		      fend
+			= ALIGN_UP (alloc_end,
+				    GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT);
+#ifdef DEBUG_RELOCATOR_NOMEM_DPRINTF  
+		      grub_dprintf ("relocator", "requesting %lx-%lx\n",
+				    (unsigned long) fstart,
+				    (unsigned long) fend);
+#endif
+		      /* The failure here can be very expensive.  */
+		      if (!grub_relocator_firmware_alloc_region (fstart, 
+								 fend - fstart))
+			{
+			  if (from_low_priv)
+			    start = fend;
+			  else
+			    end = fstart;
+			  goto retry;
+			}
+		      break;
+		    }
+#endif
+
+#if GRUB_RELOCATOR_HAVE_LEFTOVERS
+		  case CHUNK_TYPE_LEFTOVER:
+		    {
+		      unsigned offstart = alloc_start
+			% GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT;
+		      unsigned offend = alloc_end
+			% GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT;
+		      struct grub_relocator_fw_leftover *lo
+			= events[last_lo].leftover;
+		      if (offend == 0 && alloc_end != alloc_start)
+			offend = GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT;
+		      lo->freebytes[offstart / 8]
+			&= ((1 << (8 - (start % 8))) - 1);
+		      grub_memset (lo->freebytes + (offstart + 7) / 8, 0,
+				   offend / 8 - (offstart + 7) / 8);
+		      lo->freebytes[offend / 8] &= ~((1 << (offend % 8)) - 1);
+		    }
+		    break;
+#endif
+		  }
+		nallocs++;
+	      }
+	  }
+	  
+	switch (events[j].type)
+	  {
+	  case REG_BEG_START:
+	  case IN_REG_START:
+	    if (events[j].type == REG_BEG_START &&
+		(grub_addr_t) (events[j].reg + 1) > target)
+	      regbeg++;
+	    else
+	      inreg++;
+	    last_start = j;
+	    break;
+
+	  case REG_BEG_END:
+	  case IN_REG_END:
+	    if (regbeg)
+	      regbeg--;
+	    else
+	      inreg--;
+	    break;
+
+#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
+	  case REG_FIRMWARE_START:
+	    fwin++;
+	    break;
+
+	  case REG_FIRMWARE_END:
+	    fwin--;
+	    break;
+
+	  case FIRMWARE_BLOCK_START:
+	    fwb++;
+	    break;
+
+	  case FIRMWARE_BLOCK_END:
+	    fwb--;
+	    break;
+#endif
+
+#if GRUB_RELOCATOR_HAVE_LEFTOVERS
+	  case REG_LEFTOVER_START:
+	    fwlefto++;
+	    last_lo = j;
+	    break;
+
+	  case REG_LEFTOVER_END:
+	    fwlefto--;
+	    break;
+#endif
+	  case COLLISION_START:
+	    ncol++;
+	    break;
+	  case COLLISION_END:
+	    ncol--;
+	    break;
+	  }
+
+      }
+  }
+
+  /* Malloc is available again.  */
+  grub_mm_base = base_saved;
+
+  grub_free (eventt);
+  grub_free (counter);
+
+  {
+    int last_start = 0;
+    int inreg = 0, regbeg = 0, ncol = 0;
+#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
+    int fwin = 0, fwlefto = 0, fwb = 0;
+#endif
+    unsigned cural = 0;
+    int oom = 0;
+    res->subchunks = grub_malloc (sizeof (res->subchunks[0]) * nallocs);
+    if (!res->subchunks)
+      oom = 1;
+    res->nsubchunks = nallocs;
+
+    for (j = 0; j < N; j++)
+      {
+	int typepre;
+	if (ncol)
+	  typepre = -1;
+	else if (regbeg)
+	  typepre = CHUNK_TYPE_REGION_START;
+	else if (inreg)
+	  typepre = CHUNK_TYPE_IN_REGION;
+#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
+	else if (fwin && !fwb)
+	  typepre = CHUNK_TYPE_FIRMWARE;
+	else if (fwlefto && !fwb)
+	  typepre = CHUNK_TYPE_LEFTOVER;
+#endif
+	else
+	  typepre = -1;
+
+	if (j != 0 && events[j - 1].pos != events[j].pos)
+	  {
+	    grub_addr_t alloc_start, alloc_end;
+	    struct grub_relocator_subchunk tofree;
+	    struct grub_relocator_subchunk *curschu = &tofree;
+	    if (!oom)
+	      curschu = &res->subchunks[cural];
+	    alloc_start = max (events[j - 1].pos, target);
+	    alloc_end = min (events[j].pos, target + size);
+	    if (alloc_end > alloc_start)
+	      {
+#ifdef DEBUG_RELOCATOR_NOMEM_DPRINTF
+		grub_dprintf ("relocator", "subchunk 0x%lx-0x%lx, %d\n",
+			      (unsigned long) alloc_start,
+			      (unsigned long) alloc_end, typepre);
+#endif
+		curschu->type = typepre;
+		curschu->start = alloc_start;
+		curschu->size = alloc_end - alloc_start;
+		if (typepre == CHUNK_TYPE_REGION_START
+		    || typepre == CHUNK_TYPE_IN_REGION)
+		  {
+		    curschu->reg = events[last_start].reg;
+		    curschu->pre_size = alloc_start - events[j - 1].pos;
+		  }
+		if (!oom && (typepre == CHUNK_TYPE_REGION_START
+#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
+			     || typepre == CHUNK_TYPE_FIRMWARE
+#endif
+			     ))
+		  {
+		    struct grub_relocator_extra_block *ne;
+		    ne = grub_malloc (sizeof (*ne));
+		    if (!ne)
+		      {
+			oom = 1;
+			grub_memcpy (&tofree, curschu, sizeof (tofree));
+		      }
+		    else
+		      {
+			ne->start = alloc_start;
+			ne->end = alloc_end;
+			ne->next = extra_blocks;
+			ne->prev = &extra_blocks;
+			if (extra_blocks)
+			  extra_blocks->prev = &(ne->next);
+			extra_blocks = ne;
+			curschu->extra = ne;
+		      }
+		  }
+
+#if GRUB_RELOCATOR_HAVE_LEFTOVERS
+		if (!oom && typepre == CHUNK_TYPE_FIRMWARE)
+		  {
+		    grub_addr_t fstart, fend;
+
+		    fstart
+		      = ALIGN_DOWN (alloc_start,
+				    GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT);
+		    fend
+		      = ALIGN_UP (alloc_end,
+				  GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT);
+
+		    {
+		      struct grub_relocator_fw_leftover *lo1 = NULL;
+		      struct grub_relocator_fw_leftover *lo2 = NULL;
+		      if (fstart != alloc_start)
+			lo1 = grub_malloc (sizeof (*lo1));
+		      if (fend != alloc_end)
+			lo2 = grub_malloc (sizeof (*lo2));
+		      if ((!lo1 && fstart != alloc_start)
+			  || (!lo2 && fend != alloc_end))
+			{
+			  struct grub_relocator_extra_block *ne;
+			  grub_free (lo1);
+			  grub_free (lo2);
+			  lo1 = NULL;
+			  lo2 = NULL;
+			  oom = 1;
+			  grub_memcpy (&tofree, curschu, sizeof (tofree));
+			  ne = extra_blocks;
+			  extra_blocks = extra_blocks->next;
+			  grub_free (ne);
+			}
+		      if (lo1)
+			{
+			  lo1->quantstart = fstart;
+			  grub_memset (lo1->freebytes, 0xff,
+				       (alloc_start - fstart) / 8);
+			  lo1->freebytes[(alloc_start - fstart) / 8]
+			    = (1 << ((alloc_start - fstart) % 8)) - 1;
+			  grub_memset (lo1->freebytes
+				       + ((alloc_start - fstart) / 8) + 1, 0,
+				       sizeof (lo1->freebytes)
+				       - (alloc_start - fstart) / 8 - 1);
+			  lo1->next = leftovers;
+			  lo1->prev = &leftovers;
+			  if (leftovers)
+			    leftovers->prev = &lo1->next;
+			  leftovers = lo1;
+			}
+		      if (lo2)
+			{
+			  lo2->quantstart
+			    = fend - GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT;
+			  grub_memset (lo2->freebytes, 0,
+				       (alloc_end - lo2->quantstart) / 8);
+			  lo2->freebytes[(alloc_end - lo2->quantstart) / 8]
+			    = ~((1 << ((alloc_end - lo2->quantstart) % 8)) - 1);
+			  grub_memset (lo2->freebytes
+				       + ((alloc_end - lo2->quantstart) / 8)
+				       + 1, 0, sizeof (lo2->freebytes)
+				       - (alloc_end - lo2->quantstart) / 8 - 1);
+			  lo2->prev = &leftovers;
+			  if (leftovers)
+			    leftovers->prev = &lo2->next;
+			  lo2->next = leftovers;
+			  leftovers = lo2;
+			}
+		      curschu->pre = lo1;
+		      curschu->post = lo2;
+		    }
+		  }
+
+		if (typepre == CHUNK_TYPE_LEFTOVER)
+		  {
+		    curschu->pre = events[last_start].leftover;
+		    curschu->post = events[last_start].leftover;
+		  }
+#endif
+
+		if (!oom)
+		  cural++;
+		else
+		  free_subchunk (&tofree);
+	      }
+	  }
+
+	switch (events[j].type)
+	  {
+	  case REG_BEG_START:
+	  case IN_REG_START:
+	    if (events[j].type == REG_BEG_START &&
+		(grub_addr_t) (events[j].reg + 1) > target)
+	      regbeg++;
+	    else
+	      inreg++;
+	    last_start = j;
+	    break;
+
+	  case REG_BEG_END:
+	  case IN_REG_END:
+	    inreg = regbeg = 0;
+	    break;
+
+#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
+	  case REG_FIRMWARE_START:
+	    fwin++;
+	    break;
+
+	  case REG_FIRMWARE_END:
+	    fwin--;
+	    break;
+
+	  case FIRMWARE_BLOCK_START:
+	    fwb++;
+	    break;
+
+	  case FIRMWARE_BLOCK_END:
+	    fwb--;
+	    break;
+#endif
+
+#if GRUB_RELOCATOR_HAVE_LEFTOVERS
+	  case REG_LEFTOVER_START:
+	    fwlefto++;
+	    break;
+
+	  case REG_LEFTOVER_END:
+	    fwlefto--;
+	    break;
+#endif
+	  case COLLISION_START:
+	    ncol++;
+	    break;
+	  case COLLISION_END:
+	    ncol--;
+	    break;
+	  }
+      }
+    if (oom)
+      {
+	unsigned i;
+	for (i = 0; i < cural; i++)
+	  free_subchunk (&res->subchunks[i]);
+	grub_free (res->subchunks);
+	grub_dprintf ("relocator", "allocation failed with out-of-memory\n");
+	grub_free (events);
+
+	return 0;
+      }
+  }
+
+  res->src = target;
+  res->size = size;
+
+  grub_free (events);
+
+  grub_dprintf ("relocator", "allocated: 0x%lx+0x%lx\n", (unsigned long) target,
+		(unsigned long) size);
+
+  return 1;
+}
+
+static void
+adjust_limits (struct grub_relocator *rel, 
+	       grub_phys_addr_t *min_addr, grub_phys_addr_t *max_addr,
+	       grub_phys_addr_t in_min, grub_phys_addr_t in_max)
+{
+  struct grub_relocator_chunk *chunk;
+
+  *min_addr = 0;
+  *max_addr = rel->postchunks;
+
+  /* Keep chunks in memory in the same order as they'll be after relocation.  */
+  for (chunk = rel->chunks; chunk; chunk = chunk->next)
+    {
+      if (chunk->target > in_max && chunk->src < *max_addr
+	  && chunk->src < rel->postchunks)
+	*max_addr = chunk->src;
+      if (chunk->target + chunk->size <= in_min
+	  && chunk->src + chunk->size > *min_addr
+	  && chunk->src < rel->postchunks)
+	*min_addr = chunk->src + chunk->size;
+    }
+}
+
+grub_err_t
+grub_relocator_alloc_chunk_addr (struct grub_relocator *rel,
+				 grub_relocator_chunk_t *out,
+				 grub_phys_addr_t target, grub_size_t size)
+{
+  struct grub_relocator_chunk *chunk;
+  grub_phys_addr_t min_addr = 0, max_addr;
+
+  if (target > ~size)
+    return grub_error (GRUB_ERR_BUG, "address is out of range");
+
+  adjust_limits (rel, &min_addr, &max_addr, target, target);
+
+  for (chunk = rel->chunks; chunk; chunk = chunk->next)
+    if ((chunk->target <= target && target < chunk->target + chunk->size)
+	|| (target <= chunk->target && chunk->target < target + size))
+      return grub_error (GRUB_ERR_BUG, "overlap detected");
+
+  chunk = grub_malloc (sizeof (struct grub_relocator_chunk));
+  if (!chunk)
+    return grub_errno;
+
+  grub_dprintf ("relocator",
+		"min_addr = 0x%llx, max_addr = 0x%llx, target = 0x%llx\n",
+		(unsigned long long) min_addr, (unsigned long long) max_addr,
+		(unsigned long long) target);
+
+  do
+    {
+      /* A trick to improve Linux allocation.  */
+#if defined (__i386__) || defined (__x86_64__)
+      if (target < 0x100000)
+	if (malloc_in_range (rel, rel->highestnonpostaddr, ~(grub_addr_t)0, 1,
+			     size, chunk, 0, 1))
+	  {
+	    if (rel->postchunks > chunk->src)
+	      rel->postchunks = chunk->src;
+	    break;
+	  }
+#elif defined(__mips__) && (_MIPS_SIM == _ABI64)
+      if (malloc_in_range (rel, target, max_addr, 8, size, chunk, 1, 0))
+	break;
+#endif
+      if (malloc_in_range (rel, target, max_addr, 1, size, chunk, 1, 0))
+	break;
+
+      if (malloc_in_range (rel, min_addr, target, 1, size, chunk, 0, 0))
+	break;
+
+      if (malloc_in_range (rel, rel->highestnonpostaddr, ~(grub_addr_t)0, 1,
+			   size, chunk, 0, 1))
+	{
+	  if (rel->postchunks > chunk->src)
+	    rel->postchunks = chunk->src;
+	  break;
+	}
+
+      grub_dprintf ("relocator", "not allocated\n");
+      grub_free (chunk);
+      return grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"));
+    }
+  while (0);
+
+  grub_dprintf ("relocator", "allocated 0x%llx/0x%llx\n",
+		(unsigned long long) chunk->src, (unsigned long long) target);
+
+  if (rel->highestaddr < target + size)
+    rel->highestaddr = target + size;
+
+  if (rel->highestaddr < chunk->src + size)
+    rel->highestaddr = chunk->src + size;
+
+  if (chunk->src < rel->postchunks)
+    {
+      if (rel->highestnonpostaddr < target + size)
+	rel->highestnonpostaddr = target + size;
+      
+      if (rel->highestnonpostaddr < chunk->src + size)
+	rel->highestnonpostaddr = chunk->src + size;  
+    }
+
+  grub_dprintf ("relocator", "relocators_size=%ld\n",
+		(unsigned long) rel->relocators_size);
+
+  if (chunk->src < target)
+    rel->relocators_size += grub_relocator_backward_size;
+  if (chunk->src > target)
+    rel->relocators_size += grub_relocator_forward_size;
+
+  grub_dprintf ("relocator", "relocators_size=%ld\n",
+		(unsigned long) rel->relocators_size);
+
+  chunk->target = target;
+  chunk->size = size;
+  chunk->next = rel->chunks;
+  rel->chunks = chunk;
+  grub_dprintf ("relocator", "cur = %p, next = %p\n", rel->chunks,
+		rel->chunks->next);
+
+  chunk->srcv = grub_map_memory (chunk->src, chunk->size);
+  *out = chunk;
+#ifdef DEBUG_RELOCATOR
+  grub_memset (chunk->srcv, 0xfa, chunk->size);
+  grub_mm_check ();
+#endif
+  return GRUB_ERR_NONE;
+}
+
+/* Context for grub_relocator_alloc_chunk_align.  */
+struct grub_relocator_alloc_chunk_align_ctx
+{
+  grub_phys_addr_t min_addr, max_addr;
+  grub_size_t size, align;
+  int preference;
+  struct grub_relocator_chunk *chunk;
+  int found;
+};
+
+/* Helper for grub_relocator_alloc_chunk_align.  */
+static int
+grub_relocator_alloc_chunk_align_iter (grub_uint64_t addr, grub_uint64_t sz,
+				       grub_memory_type_t type, void *data)
+{
+  struct grub_relocator_alloc_chunk_align_ctx *ctx = data;
+  grub_uint64_t candidate;
+
+  if (type != GRUB_MEMORY_AVAILABLE)
+    return 0;
+  candidate = ALIGN_UP (addr, ctx->align);
+  if (candidate < ctx->min_addr)
+    candidate = ALIGN_UP (ctx->min_addr, ctx->align);
+  if (candidate + ctx->size > addr + sz
+      || candidate > ALIGN_DOWN (ctx->max_addr, ctx->align))
+    return 0;
+  if (ctx->preference == GRUB_RELOCATOR_PREFERENCE_HIGH)
+    candidate = ALIGN_DOWN (min (addr + sz - ctx->size, ctx->max_addr),
+			    ctx->align);
+  if (!ctx->found || (ctx->preference == GRUB_RELOCATOR_PREFERENCE_HIGH
+		      && candidate > ctx->chunk->target))
+    ctx->chunk->target = candidate;
+  if (!ctx->found || (ctx->preference == GRUB_RELOCATOR_PREFERENCE_LOW
+		      && candidate < ctx->chunk->target))
+    ctx->chunk->target = candidate;
+  ctx->found = 1;
+  return 0;
+}
+
+grub_err_t
+grub_relocator_alloc_chunk_align (struct grub_relocator *rel,
+				  grub_relocator_chunk_t *out,
+				  grub_phys_addr_t min_addr,
+				  grub_phys_addr_t max_addr,
+				  grub_size_t size, grub_size_t align,
+				  int preference,
+				  int avoid_efi_boot_services)
+{
+  struct grub_relocator_alloc_chunk_align_ctx ctx = {
+    .min_addr = min_addr,
+    .max_addr = max_addr,
+    .size = size,
+    .align = align,
+    .preference = preference,
+    .found = 0
+  };
+  grub_addr_t min_addr2 = 0, max_addr2;
+
+  if (max_addr > ~size)
+    max_addr = ~size;
+
+#ifdef GRUB_MACHINE_PCBIOS
+  if (min_addr < 0x1000)
+    min_addr = 0x1000;
+#endif
+
+  grub_dprintf ("relocator", "chunks = %p\n", rel->chunks);
+
+  ctx.chunk = grub_malloc (sizeof (struct grub_relocator_chunk));
+  if (!ctx.chunk)
+    return grub_errno;
+
+  if (malloc_in_range (rel, min_addr, max_addr, align,
+		       size, ctx.chunk,
+		       preference != GRUB_RELOCATOR_PREFERENCE_HIGH, 1))
+    {
+      grub_dprintf ("relocator", "allocated 0x%llx/0x%llx\n",
+		    (unsigned long long) ctx.chunk->src,
+		    (unsigned long long) ctx.chunk->src);
+      grub_dprintf ("relocator", "chunks = %p\n", rel->chunks);
+      ctx.chunk->target = ctx.chunk->src;
+      ctx.chunk->size = size;
+      ctx.chunk->next = rel->chunks;
+      rel->chunks = ctx.chunk;
+      ctx.chunk->srcv = grub_map_memory (ctx.chunk->src, ctx.chunk->size);
+      *out = ctx.chunk;
+      return GRUB_ERR_NONE;
+    }
+
+  adjust_limits (rel, &min_addr2, &max_addr2, min_addr, max_addr);
+  grub_dprintf ("relocator", "Adjusted limits from %lx-%lx to %lx-%lx\n",
+		(unsigned long) min_addr, (unsigned long) max_addr,
+		(unsigned long) min_addr2, (unsigned long) max_addr2);
+
+  do
+    {
+      if (malloc_in_range (rel, min_addr2, max_addr2, align,
+			   size, ctx.chunk, 1, 1))
+	break;
+
+      if (malloc_in_range (rel, rel->highestnonpostaddr, ~(grub_addr_t)0, 1,
+			   size, ctx.chunk, 0, 1))
+	{
+	  if (rel->postchunks > ctx.chunk->src)
+	    rel->postchunks = ctx.chunk->src;
+	  break;
+	}
+
+      return grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"));
+    }
+  while (0);
+
+  {
+#ifdef GRUB_MACHINE_EFI
+    grub_efi_mmap_iterate (grub_relocator_alloc_chunk_align_iter, &ctx,
+			   avoid_efi_boot_services);
+#elif defined (__powerpc__) || defined (GRUB_MACHINE_XEN)
+    (void) avoid_efi_boot_services;
+    grub_machine_mmap_iterate (grub_relocator_alloc_chunk_align_iter, &ctx);
+#else
+    (void) avoid_efi_boot_services;
+    grub_mmap_iterate (grub_relocator_alloc_chunk_align_iter, &ctx);
+#endif
+    if (!ctx.found)
+      return grub_error (GRUB_ERR_BAD_OS, "couldn't find suitable memory target");
+  }
+  while (1)
+    {
+      struct grub_relocator_chunk *chunk2;
+      for (chunk2 = rel->chunks; chunk2; chunk2 = chunk2->next)
+	if ((chunk2->target <= ctx.chunk->target
+	     && ctx.chunk->target < chunk2->target + chunk2->size)
+	    || (ctx.chunk->target <= chunk2->target && chunk2->target
+		< ctx.chunk->target + size))
+	  {
+	    if (preference == GRUB_RELOCATOR_PREFERENCE_HIGH)
+	      ctx.chunk->target = ALIGN_DOWN (chunk2->target, align);
+	    else
+	      ctx.chunk->target = ALIGN_UP (chunk2->target + chunk2->size,
+					    align);
+	    break;
+	  }
+      if (!chunk2)
+	break;
+    }
+
+  grub_dprintf ("relocator", "relocators_size=%ld\n",
+		(unsigned long) rel->relocators_size);
+
+  if (ctx.chunk->src < ctx.chunk->target)
+    rel->relocators_size += grub_relocator_backward_size;
+  if (ctx.chunk->src > ctx.chunk->target)
+    rel->relocators_size += grub_relocator_forward_size;
+
+  grub_dprintf ("relocator", "relocators_size=%ld\n",
+		(unsigned long) rel->relocators_size);
+
+  ctx.chunk->size = size;
+  ctx.chunk->next = rel->chunks;
+  rel->chunks = ctx.chunk;
+  grub_dprintf ("relocator", "cur = %p, next = %p\n", rel->chunks,
+		rel->chunks->next);
+  ctx.chunk->srcv = grub_map_memory (ctx.chunk->src, ctx.chunk->size);
+  *out = ctx.chunk;
+#ifdef DEBUG_RELOCATOR
+  grub_memset (ctx.chunk->srcv, 0xfa, ctx.chunk->size);
+  grub_mm_check ();
+#endif
+  return GRUB_ERR_NONE;
+}
+
+void
+grub_relocator_unload (struct grub_relocator *rel)
+{
+  struct grub_relocator_chunk *chunk, *next;
+  if (!rel)
+    return;
+  for (chunk = rel->chunks; chunk; chunk = next)
+    {
+      unsigned i;
+      for (i = 0; i < chunk->nsubchunks; i++) 
+	free_subchunk (&chunk->subchunks[i]);
+      grub_unmap_memory (chunk->srcv, chunk->size);
+      next = chunk->next;
+      grub_free (chunk->subchunks);
+      grub_free (chunk);
+    }
+  grub_free (rel);
+}
+
+grub_err_t
+grub_relocator_prepare_relocs (struct grub_relocator *rel, grub_addr_t addr,
+			       void **relstart, grub_size_t *relsize)
+{
+  grub_uint8_t *rels;
+  grub_uint8_t *rels0;
+  struct grub_relocator_chunk *sorted;
+  grub_size_t nchunks = 0;
+  unsigned j;
+  struct grub_relocator_chunk movers_chunk;
+
+  grub_dprintf ("relocator", "Preparing relocs (size=%ld)\n",
+		(unsigned long) rel->relocators_size);
+
+  if (!malloc_in_range (rel, 0, ~(grub_addr_t)0 - rel->relocators_size + 1,
+			grub_relocator_align,
+			rel->relocators_size, &movers_chunk, 1, 1))
+    return grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"));
+  movers_chunk.srcv = rels = rels0
+    = grub_map_memory (movers_chunk.src, movers_chunk.size);
+
+  if (relsize)
+    *relsize = rel->relocators_size;
+
+  grub_dprintf ("relocator", "Relocs allocated at %p\n", movers_chunk.srcv);
+  
+  {
+    unsigned i;
+    grub_size_t count[257];
+    struct grub_relocator_chunk *from, *to, *tmp;
+
+    grub_memset (count, 0, sizeof (count));
+
+    {
+        struct grub_relocator_chunk *chunk;
+	for (chunk = rel->chunks; chunk; chunk = chunk->next)
+	  {
+	    grub_dprintf ("relocator", "chunk %p->%p, 0x%lx\n", 
+			  (void *) chunk->src, (void *) chunk->target,
+			  (unsigned long) chunk->size);
+	    nchunks++;
+	    count[(chunk->src & 0xff) + 1]++;
+	  }
+    }
+    from = grub_malloc (nchunks * sizeof (sorted[0]));
+    to = grub_malloc (nchunks * sizeof (sorted[0]));
+    if (!from || !to)
+      {
+	grub_free (from);
+	grub_free (to);
+	return grub_errno;
+      }
+
+    for (j = 0; j < 256; j++)
+      count[j+1] += count[j];
+
+    {
+      struct grub_relocator_chunk *chunk;
+      for (chunk = rel->chunks; chunk; chunk = chunk->next)
+	from[count[chunk->src & 0xff]++] = *chunk;
+    }
+
+    for (i = 1; i < GRUB_CPU_SIZEOF_VOID_P; i++)
+      {
+	grub_memset (count, 0, sizeof (count));
+	for (j = 0; j < nchunks; j++)
+	  count[((from[j].src >> (8 * i)) & 0xff) + 1]++;
+	for (j = 0; j < 256; j++)
+	  count[j+1] += count[j];
+	for (j = 0; j < nchunks; j++)
+	  to[count[(from[j].src >> (8 * i)) & 0xff]++] = from[j];
+	tmp = to;
+	to = from;
+	from = tmp;
+      }
+    sorted = from;
+    grub_free (to);
+  }
+
+  for (j = 0; j < nchunks; j++)
+    {
+      grub_dprintf ("relocator", "sorted chunk %p->%p, 0x%lx\n", 
+		    (void *) sorted[j].src, (void *) sorted[j].target,
+		    (unsigned long) sorted[j].size);
+      if (sorted[j].src < sorted[j].target)
+	{
+	  grub_cpu_relocator_backward ((void *) rels,
+				       sorted[j].srcv,
+				       grub_map_memory (sorted[j].target,
+							sorted[j].size),
+				       sorted[j].size);
+	  rels += grub_relocator_backward_size;
+	}
+      if (sorted[j].src > sorted[j].target)
+	{
+	  grub_cpu_relocator_forward ((void *) rels,
+				      sorted[j].srcv,
+				      grub_map_memory (sorted[j].target,
+						       sorted[j].size),
+				      sorted[j].size);
+	  rels += grub_relocator_forward_size;
+	}
+      if (sorted[j].src == sorted[j].target)
+	grub_arch_sync_caches (sorted[j].srcv, sorted[j].size);
+    }
+  grub_cpu_relocator_jumper ((void *) rels, (grub_addr_t) addr);
+  *relstart = rels0;
+  grub_free (sorted);
+  return GRUB_ERR_NONE;
+}
+
+void
+grub_mm_check_real (const char *file, int line)
+{
+  grub_mm_region_t r;
+  grub_mm_header_t p, pa;
+
+  for (r = grub_mm_base; r; r = r->next)
+    {
+      pa = r->first;
+      p = pa->next;
+      if (p->magic == GRUB_MM_ALLOC_MAGIC)
+	continue;
+      do 
+	{
+	  if ((grub_addr_t) p < (grub_addr_t) (r + 1)
+	      || (grub_addr_t) p >= (grub_addr_t) (r + 1) + r->size)
+	    grub_fatal ("%s:%d: out of range pointer: %p\n", file, line, p);
+	  if (p->magic != GRUB_MM_FREE_MAGIC)
+	    grub_fatal ("%s:%d free magic broken at %p (0x%x)\n", file,
+			line, p, p->magic);
+	  pa = p;
+	  p = pa->next;
+	}
+      while (pa != r->first);
+    }
+}

GRUB2/MOD_SRC/grub-2.04/grub-core/lib/setjmp.S

+#if defined(__i386__)
+#include "./i386/setjmp.S"
+#elif defined(__x86_64__)
+#include "./x86_64/setjmp.S"
+#elif defined(__sparc__)
+#include "./sparc64/setjmp.S"
+#elif defined(__mips__)
+#if _MIPS_SIM == _ABI64
+#include "./mips64/setjmp.S"
+#else
+#include "./mips/setjmp.S"
+#endif
+#elif defined(__powerpc__) || defined(__PPC__)
+#include "./powerpc/setjmp.S"
+#elif defined(__ia64__)
+#include "./ia64/setjmp.S"
+#include "./ia64/longjmp.S"
+#elif defined(__arm__)
+#include "./arm/setjmp.S"
+#elif defined(__aarch64__)
+#include "./arm64/setjmp.S"
+#elif defined(__riscv)
+#include "./riscv/setjmp.S"
+#else
+#error "Unknown target cpu type"
+#endif

GRUB2/MOD_SRC/grub-2.04/grub-core/loader/mips64/linux.c

+/* linux.c - boot Linux */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2003,2004,2005,2007,2009,2010,2017  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/efi/api.h>
+#include <grub/efi/efi.h>
+#include <grub/elf.h>
+#include <grub/elfload.h>
+#include <grub/loader.h>
+#include <grub/dl.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/command.h>
+#include <grub/cpu/relocator.h>
+#include <grub/machine/loongson.h>
+#include <grub/memory.h>
+#include <grub/i18n.h>
+#include <grub/lib/cmdline.h>
+#include <grub/linux.h>
+#include <grub/term.h>
+#include <grub/env.h>
+
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#define _ull unsigned long long
+#pragma GCC diagnostic ignored "-Wcast-align"
+
+typedef  unsigned long size_t;
+
+static grub_dl_t my_mod;
+
+static int loaded;
+
+static grub_uint32_t tmp_index = 0;
+static grub_size_t linux_size;
+
+static struct grub_relocator *relocator;
+static grub_addr_t target_addr, entry_addr;
+static int linux_argc;
+static grub_uint8_t *linux_args_addr;
+static grub_off_t rd_addr_arg_off, rd_size_arg_off;
+static int initrd_loaded = 0;
+
+
+static grub_uint32_t j = 0;
+static grub_uint32_t t = 0;
+grub_uint64_t tempMemsize = 0;
+grub_uint32_t free_index = 0;
+grub_uint32_t reserve_index = 0;
+grub_uint32_t acpi_table_index = 0;
+grub_uint32_t acpi_nvs_index = 0;  
+
+#define LINUX_MAX_ARGC  1024
+static int ventoy_debug = 0;
+static int ventoy_initrd_called = 0;
+static int ventoy_linux_argc = 0;
+static char **ventoy_linux_args = NULL;
+static int ventoy_extra_initrd_num = 0;
+static char *ventoy_extra_initrd_list[256];
+static grub_err_t
+grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+		 int argc, char *argv[]);
+
+
+
+static inline grub_size_t
+page_align (grub_size_t size)
+{
+  return (size + (1 << 12) - 1) & (~((1 << 12) - 1));
+}
+
+/* Find the optimal number of pages for the memory map. Is it better to
+   move this code to efi/mm.c?  */
+static grub_efi_uintn_t
+find_mmap_size (void)
+{
+  static grub_efi_uintn_t mmap_size = 0;
+
+  if (mmap_size != 0)
+    return mmap_size;
+
+  mmap_size = (1 << 12);
+  while (1)
+    {
+      int ret;
+      grub_efi_memory_descriptor_t *mmap;
+      grub_efi_uintn_t desc_size;
+
+      mmap = grub_malloc (mmap_size);
+      if (! mmap)
+	return 0;
+
+      ret = grub_efi_get_memory_map (&mmap_size, mmap, 0, &desc_size, 0);
+      grub_free (mmap);
+
+      if (ret < 0)
+	{
+	  grub_error (GRUB_ERR_IO, "cannot get memory map");
+	  return 0;
+	}
+      else if (ret > 0)
+	break;
+
+      mmap_size += (1 << 12);
+    }
+
+
+  /* Increase the size a bit for safety, because GRUB allocates more on
+     later, and EFI itself may allocate more.  */
+  mmap_size += (1 << 12);
+
+  return page_align (mmap_size);
+}
+
+
+static void ventoy_debug_pause(void)
+{
+    char key;
+
+    if (0 == ventoy_debug) 
+    {
+        return;
+    }
+    
+    grub_printf("press Enter to continue ......\n");
+    while (1)
+    {
+        key = grub_getkey();
+        if (key == '\n' || key == '\r')
+        {
+            break;
+        }
+    }    
+}
+
+static int ventoy_preboot(void)
+{
+    int i;
+    const char *file;
+    char buf[128];
+
+    if (ventoy_debug) 
+    {
+        grub_printf("ventoy_preboot %d %d\n", ventoy_linux_argc, ventoy_initrd_called);
+        ventoy_debug_pause();
+    }
+
+    if (ventoy_linux_argc == 0)
+    {
+        return 0;
+    }
+
+    if (ventoy_initrd_called)
+    {
+        ventoy_initrd_called = 0;
+        return 0;
+    }
+
+    grub_snprintf(buf, sizeof(buf), "mem:%s:size:%s", grub_env_get("ventoy_cpio_addr"), grub_env_get("ventoy_cpio_size"));
+
+    ventoy_extra_initrd_list[ventoy_extra_initrd_num++] = grub_strdup(buf);
+
+    file = grub_env_get("vtoy_img_part_file");
+    if (file)
+    {
+        ventoy_extra_initrd_list[ventoy_extra_initrd_num++] = grub_strdup(file);
+    }
+
+    if (ventoy_debug) 
+    {
+        grub_printf("========== initrd list ==========\n");
+        for (i = 0; i < ventoy_extra_initrd_num; i++)
+        {
+            grub_printf("%s\n", ventoy_extra_initrd_list[i]);
+        }
+        grub_printf("=================================\n");
+        
+        ventoy_debug_pause();
+    }
+
+    grub_cmd_initrd(NULL, ventoy_extra_initrd_num, ventoy_extra_initrd_list);
+
+    return 0;
+}
+
+static int ventoy_boot_opt_filter(char *opt)
+{
+    if (grub_strcmp(opt, "noinitrd") == 0)
+    {
+        return 1;
+    }
+
+    if (grub_strcmp(opt, "vga=current") == 0)
+    {
+        return 1;
+    }
+
+    if (grub_strncmp(opt, "rdinit=", 7) == 0)
+    {
+        if (grub_strcmp(opt, "rdinit=/vtoy/vtoy") != 0)
+        {
+            opt[0] = 'v';
+            opt[1] = 't';
+        }
+        return 0;
+    }
+    
+    if (grub_strncmp(opt, "init=", 5) == 0)
+    {
+        opt[0] = 'v';
+        opt[1] = 't';
+        return 0;
+    }
+
+    if (ventoy_debug)
+    {
+        if (grub_strcmp(opt, "quiet") == 0)
+        {
+            return 1;
+        }
+        
+        if (grub_strncmp(opt, "loglevel=", 9) == 0)
+        {
+            return 1;
+        }
+        
+        if (grub_strcmp(opt, "splash") == 0)
+        {
+            return 1;
+        }
+    }
+
+    return 0;
+}
+
+static int ventoy_bootopt_hook(int argc, char *argv[])
+{
+    int i;
+    int count = 0;
+    const char *env;
+    char c;
+    char *newenv;
+    char *last, *pos;
+
+    //grub_printf("ventoy_bootopt_hook: %d %d\n", argc, ventoy_linux_argc);
+
+    if (ventoy_linux_argc == 0)
+    {
+        return 0;
+    }
+
+    /* the 1st parameter is BOOT_IMAGE=xxxx */
+    if (argc > 0 && 0 == ventoy_boot_opt_filter(argv[0]))
+    {
+        ventoy_linux_args[count++] = grub_strdup(argv[0]);
+    }
+
+    for (i = 0; i < ventoy_linux_argc; i++)
+    {
+        ventoy_linux_args[count] = ventoy_linux_args[i + (LINUX_MAX_ARGC / 2)];
+        ventoy_linux_args[i + (LINUX_MAX_ARGC / 2)] = NULL;
+        
+        if (ventoy_linux_args[count][0] == '@')
+        {
+            env = grub_env_get(ventoy_linux_args[count] + 1);
+            if (env)
+            {
+                grub_free(ventoy_linux_args[count]);
+
+                newenv = grub_strdup(env);
+                last =  newenv;
+
+                while (*last)
+                {
+                    while (*last)
+                    {
+                        if (*last != ' ' && *last != '\t')
+                        {
+                            break;
+                        }
+                        last++;
+                    }
+
+                    if (*last == 0)
+                    {
+                        break;
+                    }
+
+                    for (pos = last; *pos; pos++)
+                    {
+                        if (*pos == ' ' || *pos == '\t')
+                        {
+                            c = *pos;
+                            *pos = 0;
+                            if (0 == ventoy_boot_opt_filter(last))
+                            {
+                                ventoy_linux_args[count++] = grub_strdup(last);
+                            }
+                            *pos = c;
+                            break;
+                        }
+                    }
+
+                    if (*pos == 0)
+                    {
+                        if (0 == ventoy_boot_opt_filter(last))
+                        {
+                            ventoy_linux_args[count++] = grub_strdup(last);                            
+                        }
+                        break;
+                    }
+
+                    last = pos + 1;
+                }
+            }
+            else
+            {
+                count++;
+            }
+        }
+        else
+        {
+            count++;            
+        }
+    }
+
+    /* We have processed the 1st parameter before, so start from 1 */
+    for (i = 1; i < argc; i++)
+    {
+        if (ventoy_boot_opt_filter(argv[i]))
+        {
+            continue;
+        }
+
+        ventoy_linux_args[count++] = grub_strdup(argv[i]);
+    }
+
+    if (ventoy_debug)
+    {
+        ventoy_linux_args[count++] = grub_strdup("loglevel=7");
+    }
+
+    ventoy_linux_argc = count;
+
+    if (ventoy_debug)
+    {
+        grub_printf("========== bootoption ==========\n");
+        for (i = 0; i < count; i++)
+        {
+            grub_printf("%s ", ventoy_linux_args[i]);
+        }  
+        grub_printf("\n================================\n");
+    }
+    
+    return 0;
+}
+
+static grub_err_t
+grub_cmd_set_boot_opt (grub_command_t cmd __attribute__ ((unused)),
+		int argc, char *argv[])
+{
+    int i;
+    const char *vtdebug;
+
+    for (i = 0; i < argc; i++)
+    {
+        ventoy_linux_args[ventoy_linux_argc + (LINUX_MAX_ARGC / 2) ] = grub_strdup(argv[i]);
+        ventoy_linux_argc++;
+    }
+
+    vtdebug = grub_env_get("vtdebug_flag");
+    if (vtdebug && vtdebug[0])
+    {
+        ventoy_debug = 1;
+    }
+
+    if (ventoy_debug) grub_printf("ventoy set boot opt %d\n", ventoy_linux_argc);
+
+    return 0;
+}
+
+static grub_err_t
+grub_cmd_unset_boot_opt (grub_command_t cmd __attribute__ ((unused)),
+		int argc, char *argv[])
+{
+    int i;
+    
+    (void)argc;
+    (void)argv;
+
+    for (i = 0; i < LINUX_MAX_ARGC; i++)
+    {
+        if (ventoy_linux_args[i])
+        {
+            grub_free(ventoy_linux_args[i]);
+        }
+    }
+
+    ventoy_debug = 0;
+    ventoy_linux_argc = 0;
+    ventoy_initrd_called = 0;
+    grub_memset(ventoy_linux_args, 0, sizeof(char *) * LINUX_MAX_ARGC);
+    return 0;
+}
+
+static grub_err_t
+grub_cmd_extra_initrd_append (grub_command_t cmd __attribute__ ((unused)),
+		int argc, char *argv[])
+{
+    int newclen = 0;
+    char *pos = NULL;
+    char *end = NULL;
+    char buf[256] = {0};
+    
+    if (argc != 1)
+    {
+        return 1;
+    }
+
+    for (pos = argv[0]; *pos; pos++)
+    {
+        if (*pos == '/')
+        {
+            end = pos;
+        }
+    }
+
+    if (end)
+    {
+        /* grub2 newc bug workaround */
+        newclen = (int)grub_strlen(end + 1);
+        if ((110 + newclen) % 4 == 0)
+        {
+            grub_snprintf(buf, sizeof(buf), "newc:.%s:%s", end + 1, argv[0]);
+        }
+        else
+        {
+            grub_snprintf(buf, sizeof(buf), "newc:%s:%s", end + 1, argv[0]);
+        }
+    
+        if (ventoy_extra_initrd_num < 256)
+        {
+            ventoy_extra_initrd_list[ventoy_extra_initrd_num++] = grub_strdup(buf);        
+        }
+    }
+
+    return 0;
+}
+
+static grub_err_t
+grub_cmd_extra_initrd_reset (grub_command_t cmd __attribute__ ((unused)),
+		int argc, char *argv[])
+{
+    int i;
+    
+    (void)argc;
+    (void)argv;
+
+    for (i = 0; i < ventoy_extra_initrd_num; i++)
+    {
+        if (ventoy_extra_initrd_list[i])
+        {
+            grub_free(ventoy_extra_initrd_list[i]);
+        }
+    }
+
+    grub_memset(ventoy_extra_initrd_list, 0, sizeof(ventoy_extra_initrd_list));
+
+    return 0;
+}
+
+
+static grub_err_t
+grub_linux_boot (void)
+{
+  struct grub_relocator64_state state;
+  grub_int8_t checksum = 0;
+  grub_efi_memory_descriptor_t * lsdesc = NULL;
+
+  ventoy_preboot();
+
+  grub_memset (&state, 0, sizeof (state));
+
+  /* Boot the kernel.  */
+  state.gpr[1] = entry_addr;
+  grub_dprintf("loongson", "entry_addr is 0x%llx\n", (_ull)state.gpr[1]);
+  state.gpr[4] = linux_argc;
+  grub_dprintf("loongson", "linux_argc is %lld\n", (_ull)state.gpr[4]);
+  state.gpr[5] = (grub_addr_t) linux_args_addr;
+  grub_dprintf("loongson", "args_addr is 0x%llx\n", (_ull)state.gpr[5]);
+
+  if(grub_efi_is_loongson ())
+  {
+    grub_efi_uintn_t mmap_size;
+    grub_efi_uintn_t desc_size;
+    grub_efi_memory_descriptor_t *mmap_buf;
+    grub_err_t err;
+    struct bootparamsinterface * boot_params;
+    void * tmp_boot_params = NULL;
+    grub_efi_uint8_t new_interface_flag = 0;
+    mem_map * new_interface_mem = NULL;
+    char *p = NULL;
+
+    struct memmap reserve_mem[GRUB_EFI_LOONGSON_MMAP_MAX];
+    struct memmap free_mem[GRUB_EFI_LOONGSON_MMAP_MAX];
+    struct memmap acpi_table_mem[GRUB_EFI_LOONGSON_MMAP_MAX];
+    struct memmap acpi_nvs_mem[GRUB_EFI_LOONGSON_MMAP_MAX];
+  
+    grub_memset(reserve_mem, 0, sizeof(struct memmap) * GRUB_EFI_LOONGSON_MMAP_MAX);
+    grub_memset(free_mem, 0, sizeof(struct memmap) * GRUB_EFI_LOONGSON_MMAP_MAX);
+    grub_memset(acpi_table_mem, 0, sizeof(struct memmap) * GRUB_EFI_LOONGSON_MMAP_MAX);
+    grub_memset(acpi_nvs_mem, 0, sizeof(struct memmap) * GRUB_EFI_LOONGSON_MMAP_MAX);
+
+    tmp_boot_params = grub_efi_loongson_get_boot_params();
+    if(tmp_boot_params == NULL)
+    {
+      grub_printf("not find param\n");
+      return -1;
+    }
+
+    boot_params = (struct bootparamsinterface *)tmp_boot_params;
+    p = (char *)&(boot_params->signature);
+    if(grub_strncmp(p, "BPI", 3) == 0)
+    {
+      /* Check extlist headers */
+      ext_list * listpointer = NULL;
+      listpointer = boot_params->extlist;
+      for( ;listpointer != NULL; listpointer = listpointer->next)
+      {
+        char *pl= (char *)&(listpointer->signature);
+	if(grub_strncmp(pl, "MEM", 3) == 0)
+	{
+           new_interface_mem = (mem_map *)listpointer;
+	}
+      }
+
+      new_interface_flag = 1;
+      grub_dprintf("loongson", "get new parameter interface\n");
+    }else{
+      new_interface_flag = 0;
+      grub_dprintf("loongson", "get old parameter interface\n");
+      
+    }
+    state.gpr[6] = (grub_uint64_t)tmp_boot_params;
+    grub_dprintf("loongson", "boot_params is 0x%llx\n", (_ull)state.gpr[6]);
+
+    mmap_size = find_mmap_size ();
+    if (! mmap_size)
+      return grub_errno;
+    mmap_buf = grub_efi_allocate_any_pages (page_align (mmap_size) >> 12);
+    if (! mmap_buf)
+      return grub_error (GRUB_ERR_IO, "cannot allocate memory map");
+    err = grub_efi_finish_boot_services (&mmap_size, mmap_buf, NULL,
+                                         &desc_size, NULL);
+    //grub_printf("%s-%d\n", __func__, __LINE__);
+    if (err)
+     return err;
+
+    if(new_interface_flag)
+    {
+      if (!mmap_buf || !mmap_size || !desc_size)
+        return -1;
+
+      tmp_index = new_interface_mem -> mapcount;
+      //grub_printf("%s-%d mapcount %d\n", __func__, __LINE__, tmp_index);
+
+      /*
+       According to UEFI SPEC,mmap_buf is the accurate Memory Map array \
+       now we can fill platform specific memory structure. 
+       */
+      for(lsdesc = mmap_buf; lsdesc < (grub_efi_memory_descriptor_t *)((char *)mmap_buf + mmap_size); lsdesc = (grub_efi_memory_descriptor_t *)((char *)lsdesc + desc_size))
+      {
+        /* Recovery */
+        if((lsdesc->type != GRUB_EFI_ACPI_RECLAIM_MEMORY) && \
+			(lsdesc->type != GRUB_EFI_ACPI_MEMORY_NVS) && \
+			(lsdesc->type != GRUB_EFI_RUNTIME_SERVICES_DATA) && \
+			(lsdesc->type != GRUB_EFI_RUNTIME_SERVICES_CODE) && \
+			(lsdesc->type != GRUB_EFI_RESERVED_MEMORY_TYPE) && \
+			(lsdesc->type != GRUB_EFI_PAL_CODE)) 
+	{
+
+	  free_mem[free_index].memtype = GRUB_EFI_LOONGSON_SYSTEM_RAM_LOW;
+	  free_mem[free_index].memstart = (lsdesc->physical_start) & 0xffffffffffff;
+	  free_mem[free_index].memsize = lsdesc->num_pages * 4096;
+	  free_index++;
+	  /*ACPI*/
+	}else if((lsdesc->type == GRUB_EFI_ACPI_RECLAIM_MEMORY)){
+	  acpi_table_mem[acpi_table_index].memtype = GRUB_EFI_LOONGSON_ACPI_TABLE;
+	  acpi_table_mem[acpi_table_index].memstart = (lsdesc->physical_start) & 0xffffffffffff;
+	  acpi_table_mem[acpi_table_index].memsize = lsdesc->num_pages * 4096;
+	  acpi_table_index++;
+
+	}else if((lsdesc->type == GRUB_EFI_ACPI_MEMORY_NVS)){
+	  acpi_nvs_mem[acpi_nvs_index].memtype = GRUB_EFI_LOONGSON_ACPI_NVS;
+	  acpi_nvs_mem[acpi_nvs_index].memstart = (lsdesc->physical_start) & 0xffffffffffff;
+	  acpi_nvs_mem[acpi_nvs_index].memsize = lsdesc->num_pages * 4096;
+	  acpi_nvs_index++;
+
+	  /* Reserve */
+	}else{ 
+	  reserve_mem[reserve_index].memtype = GRUB_EFI_LOONGSON_MEMORY_RESERVED;
+	  reserve_mem[reserve_index].memstart = (lsdesc->physical_start) & 0xffffffffffff;
+	  reserve_mem[reserve_index].memsize = lsdesc->num_pages * 4096;
+	  reserve_index++;
+	}
+      }
+
+      /* Recovery sort */
+      for(j = 0; j < free_index;)
+      {
+        tempMemsize = free_mem[j].memsize;
+        for(t = j + 1; t < free_index; t++)
+        {
+          if((free_mem[j].memstart + tempMemsize == free_mem[t].memstart) && (free_mem[j].memtype == free_mem[t].memtype)) 
+          {
+		  tempMemsize += free_mem[t].memsize;
+	  }else{            
+		  break;
+	  }      
+	}
+	if(free_mem[j].memstart >= 0x10000000) /*HIGH MEM*/
+	  new_interface_mem->map[tmp_index].memtype = GRUB_EFI_LOONGSON_SYSTEM_RAM_HIGH;
+	else
+	  new_interface_mem->map[tmp_index].memtype = GRUB_EFI_LOONGSON_SYSTEM_RAM_LOW;
+	new_interface_mem->map[tmp_index].memstart = free_mem[j].memstart;
+	new_interface_mem->map[tmp_index].memsize = tempMemsize;
+	grub_dprintf("loongson", "map[%d]:type %x, start 0x%llx, end 0x%llx\n",
+			tmp_index,
+			new_interface_mem->map[tmp_index].memtype,
+			(_ull)new_interface_mem->map[tmp_index].memstart,
+			(_ull)new_interface_mem->map[tmp_index].memstart+ new_interface_mem->map[tmp_index].memsize
+		    );
+	j = t;
+	tmp_index++;
+      }
+
+      /*ACPI Sort*/
+      tmp_index = grub_efi_loongson_memmap_sort(acpi_table_mem, acpi_table_index, new_interface_mem, tmp_index, GRUB_EFI_LOONGSON_ACPI_TABLE);
+      tmp_index = grub_efi_loongson_memmap_sort(acpi_nvs_mem, acpi_nvs_index, new_interface_mem, tmp_index, GRUB_EFI_LOONGSON_ACPI_NVS);
+      /*Reserve Sort*/
+      tmp_index = grub_efi_loongson_memmap_sort(reserve_mem, reserve_index, new_interface_mem, tmp_index, GRUB_EFI_LOONGSON_MEMORY_RESERVED);
+
+      new_interface_mem->mapcount = tmp_index;
+      new_interface_mem->header.checksum = 0;
+      //grub_printf("%s-%d mapcount %d\n", __func__, __LINE__, tmp_index);
+
+      checksum = grub_efi_loongson_grub_calculatechecksum8((grub_uint8_t *)new_interface_mem, new_interface_mem->header.length);
+      new_interface_mem->header.checksum = checksum;
+    }
+  }
+
+  state.jumpreg = 1;
+  grub_relocator64_boot (relocator, state);
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_linux_unload (void)
+{
+  grub_relocator_unload (relocator);
+  grub_dl_unref (my_mod);
+
+  loaded = 0;
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_linux_load32 (grub_elf_t elf, const char *filename)
+{
+  Elf32_Addr base;
+  grub_err_t err;
+  grub_uint8_t *playground;
+
+  /* Linux's entry point incorrectly contains a virtual address.  */
+  entry_addr = elf->ehdr.ehdr32.e_entry;
+
+  linux_size = grub_elf32_size (elf, &base, 0);
+  if (linux_size == 0)
+    return grub_errno;
+  target_addr = base;
+  linux_size = ALIGN_UP (base + linux_size - base, 8);
+
+  relocator = grub_relocator_new ();
+  if (!relocator)
+    return grub_errno;
+
+  {
+    grub_relocator_chunk_t ch;
+    err = grub_relocator_alloc_chunk_addr (relocator, &ch,
+					   grub_vtop ((void *) target_addr),
+					   linux_size);
+    if (err)
+      return err;
+    playground = get_virtual_current_address (ch);
+  }
+
+  /* Now load the segments into the area we claimed.  */
+  return grub_elf32_load (elf, filename, playground - base, GRUB_ELF_LOAD_FLAGS_NONE, 0, 0);
+}
+
+static grub_err_t
+grub_linux_load64 (grub_elf_t elf, const char *filename)
+{
+  Elf64_Addr base;
+  grub_err_t err;
+  grub_uint8_t *playground;
+
+  /* Linux's entry point incorrectly contains a virtual address.  */
+  entry_addr = elf->ehdr.ehdr64.e_entry;
+  grub_dprintf("loongson", "entry address = 0x%llx\n", (_ull)entry_addr);
+
+  linux_size = grub_elf64_size (elf, &base, 0);
+  grub_dprintf("loongson", "base = 0x%llx\n", (_ull)base);
+
+  if (linux_size == 0)
+    return grub_errno;
+  target_addr = base;
+  linux_size = ALIGN_UP (base + linux_size - base, 8);
+
+  relocator = grub_relocator_new ();
+  if (!relocator)
+    return grub_errno;
+
+  {
+    grub_relocator_chunk_t ch;
+    err = grub_relocator_alloc_chunk_addr (relocator, &ch,
+					   grub_vtop ((void *) target_addr),
+					   linux_size);
+    if (err)
+      return err;
+    playground = get_virtual_current_address (ch);
+    //playground = 0xffffffff81ee0000; //将内核直接load到elf头指定内存，而非grub分配的空间
+    //playground = 0xffffffff80200000;
+  }
+
+  grub_printf("playground:0x%llx\n", (_ull)playground);
+
+  /* Now load the segments into the area we claimed.  */
+  return grub_elf64_load (elf, filename, playground - base, GRUB_ELF_LOAD_FLAGS_NONE, 0, 0);
+}
+
+static grub_err_t
+grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
+		int argc, char *argv[])
+{
+  grub_elf_t elf = 0;
+  int size;
+  int i;
+  grub_uint32_t *linux_argv;
+  char *linux_args;
+  grub_err_t err;
+
+  if (argc == 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+  if (ventoy_linux_argc)
+  {
+      ventoy_bootopt_hook(argc, argv);
+      argc = ventoy_linux_argc;
+      argv = ventoy_linux_args;
+  }
+
+  elf = grub_elf_open (argv[0], GRUB_FILE_TYPE_LINUX_KERNEL);
+  if (! elf)
+    return grub_errno;
+
+  if (elf->ehdr.ehdr32.e_type != ET_EXEC)
+    {
+      grub_elf_close (elf);
+      return grub_error (GRUB_ERR_UNKNOWN_OS,
+			 N_("this ELF file is not of the right type"));
+    }
+
+  /* Release the previously used memory.  */
+  grub_loader_unset ();
+  loaded = 0;
+
+  /* For arguments.  */
+  linux_argc = argc;
+  /* Main arguments.  */
+  size = (linux_argc) * sizeof (grub_uint32_t);
+  /* Initrd address and size.  */
+  size += 2 * sizeof (grub_uint32_t);
+  /* NULL terminator.  */
+  size += sizeof (grub_uint32_t);
+  /* First argument is always "a0".  */
+  size += ALIGN_UP (sizeof ("a0"), 4);
+  /* Normal arguments.  */
+  for (i = 1; i < argc; i++)
+    size += ALIGN_UP (grub_strlen (argv[i]) + 1, 4);
+
+  /* rd arguments.  */
+  size += ALIGN_UP (sizeof ("rd_start=0xXXXXXXXXXXXXXXXX"), 4);
+  size += ALIGN_UP (sizeof ("rd_size=0xXXXXXXXXXXXXXXXX"), 4);
+
+  size = ALIGN_UP (size, 8);
+
+  if (grub_elf_is_elf32 (elf))
+    err = grub_linux_load32 (elf, argv[0]);
+  else
+  if (grub_elf_is_elf64 (elf))
+    err = grub_linux_load64 (elf, argv[0]);
+  else
+    err = grub_error (GRUB_ERR_BAD_OS, N_("invalid arch-dependent ELF magic"));
+
+  grub_elf_close (elf);
+
+  if (err)
+    return err;
+
+  {
+    grub_relocator_chunk_t ch;
+    err = grub_relocator_alloc_chunk_align (relocator, &ch,
+					    0, (0xffffffff - size) + 1,
+					    size, 8,
+					    GRUB_RELOCATOR_PREFERENCE_HIGH, 0);
+    if (err)
+      return err;
+    linux_args_addr = get_virtual_current_address (ch);
+  }
+
+  linux_argv = (grub_uint32_t *) linux_args_addr;
+  linux_args = (char *) (linux_argv + (linux_argc + 1 + 2));
+
+  grub_memcpy (linux_args, "a0", sizeof ("a0"));
+  *linux_argv = (grub_uint32_t) (grub_addr_t) linux_args;
+  linux_argv++;
+  linux_args += ALIGN_UP (sizeof ("a0"), 4);
+
+  for (i = 1; i < argc; i++)
+    {
+      grub_memcpy (linux_args, argv[i], grub_strlen (argv[i]) + 1);
+      *linux_argv = (grub_uint32_t) (grub_addr_t) linux_args;
+      linux_argv++;
+      linux_args += ALIGN_UP (grub_strlen (argv[i]) + 1, 4);
+    }
+
+  /* Reserve space for rd arguments.  */
+  rd_addr_arg_off = (grub_uint8_t *) linux_args - linux_args_addr;
+  linux_args += ALIGN_UP (sizeof ("rd_start=0xXXXXXXXXXXXXXXXX"), 4);
+  *linux_argv = 0;
+  linux_argv++;
+
+  rd_size_arg_off = (grub_uint8_t *) linux_args - linux_args_addr;
+  linux_args += ALIGN_UP (sizeof ("rd_size=0xXXXXXXXXXXXXXXXX"), 4);
+  *linux_argv = 0;
+  linux_argv++;
+
+  *linux_argv = 0;
+
+  //wake up other cores
+  {
+	  __asm__(
+			  "dli  $8, 0x900000003ff01000\n\t"
+			  "dli  $11, 0      \n\t"
+			  "dsll $11, 8      \n\t"
+			  "or   $8, $8,$11  \n\t"
+			  "li   $9, 0x5a5a \n\t"
+			  "sw   $9, 32($8) \n\t"
+			  "nop             \n\t"
+			  :
+			  :
+			 );
+  }
+  grub_loader_set (grub_linux_boot, grub_linux_unload, 0);
+  initrd_loaded = 0;
+  loaded = 1;
+  grub_dl_ref (my_mod);
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+		 int argc, char *argv[])
+{
+  grub_size_t size = 0;
+  void *initrd_dest;
+  grub_err_t err;
+  struct grub_linux_initrd_context initrd_ctx = { 0, 0, 0 };
+
+  if (argc == 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+  if (!loaded)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("you need to load the kernel first"));
+
+  if (initrd_loaded)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "only one initrd command can be issued.");
+
+  if (grub_initrd_init (argc, argv, &initrd_ctx))
+    goto fail;
+
+  size = grub_get_initrd_size (&initrd_ctx);
+
+  {
+    grub_relocator_chunk_t ch;
+    err = grub_relocator_alloc_chunk_align (relocator, &ch,
+					    0, (0xffffffff - size) + 1,
+					    size, 0x10000,
+					    GRUB_RELOCATOR_PREFERENCE_HIGH, 0);
+
+    if (err)
+      goto fail;
+    initrd_dest = get_virtual_current_address (ch);
+  }
+
+  if (grub_initrd_load (&initrd_ctx, argv, initrd_dest))
+    goto fail;
+
+  grub_snprintf ((char *) linux_args_addr + rd_addr_arg_off,
+		 sizeof ("rd_start=0xXXXXXXXXXXXXXXXX"), "rd_start=0x%lx",
+		(grub_uint64_t) initrd_dest);
+  ((grub_uint32_t *) linux_args_addr)[linux_argc]
+    = (grub_uint32_t) ((grub_addr_t) linux_args_addr + rd_addr_arg_off);
+  linux_argc++;
+
+  grub_snprintf ((char *) linux_args_addr + rd_size_arg_off,
+		sizeof ("rd_size=0xXXXXXXXXXXXXXXXXX"), "rd_size=0x%lx",
+		(grub_uint64_t) size);
+  ((grub_uint32_t *) linux_args_addr)[linux_argc]
+    = (grub_uint32_t) ((grub_addr_t) linux_args_addr + rd_size_arg_off);
+  linux_argc++;
+
+  initrd_loaded = 1;
+
+ fail:
+  grub_initrd_close (&initrd_ctx);
+
+  return grub_errno;
+}
+
+static grub_err_t
+ventoy_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+		 int argc, char *argv[])
+{
+    int i;
+    const char *file;
+    char buf[64];
+
+    if (ventoy_debug) grub_printf("ventoy_cmd_initrd %d\n", ventoy_linux_argc);
+
+    if (ventoy_linux_argc == 0)
+    {
+        return grub_cmd_initrd(cmd, argc, argv);        
+    }
+
+    grub_snprintf(buf, sizeof(buf), "mem:%s:size:%s", grub_env_get("ventoy_cpio_addr"), grub_env_get("ventoy_cpio_size"));
+
+    if (ventoy_debug) grub_printf("membuf=%s\n", buf);
+
+    ventoy_extra_initrd_list[ventoy_extra_initrd_num++] = grub_strdup(buf);
+
+    file = grub_env_get("vtoy_img_part_file");
+    if (file)
+    {
+        ventoy_extra_initrd_list[ventoy_extra_initrd_num++] = grub_strdup(file);
+    }
+
+    for (i = 0; i < argc; i++)
+    {
+        ventoy_extra_initrd_list[ventoy_extra_initrd_num++] = grub_strdup(argv[i]);
+    }
+
+    ventoy_initrd_called = 1;
+
+    if (ventoy_debug)
+    {
+        grub_printf("========== initrd list ==========\n");
+        for (i = 0; i < ventoy_extra_initrd_num; i++)
+        {
+            grub_printf("%s\n", ventoy_extra_initrd_list[i]);
+        }
+        grub_printf("=================================\n");
+    }
+    
+    return grub_cmd_initrd(cmd, ventoy_extra_initrd_num, ventoy_extra_initrd_list);
+}
+         
+static grub_command_t cmd_linux, cmd_initrd;
+static grub_command_t cmd_set_bootopt, cmd_unset_bootopt, cmd_extra_initrd_append, cmd_extra_initrd_reset;
+
+GRUB_MOD_INIT(linux)
+{
+  cmd_linux = grub_register_command ("linux", grub_cmd_linux,
+				     0, N_("Load Linux."));
+  cmd_initrd = grub_register_command ("initrd", ventoy_cmd_initrd,
+				      0, N_("Load initrd."));
+
+  cmd_set_bootopt = grub_register_command ("vt_set_boot_opt", grub_cmd_set_boot_opt, 0, N_("set ext boot opt"));
+  cmd_unset_bootopt = grub_register_command ("vt_unset_boot_opt", grub_cmd_unset_boot_opt, 0, N_("unset ext boot opt"));
+  
+  cmd_extra_initrd_append = grub_register_command ("vt_img_extra_initrd_append", grub_cmd_extra_initrd_append, 0, N_(""));
+  cmd_extra_initrd_reset = grub_register_command ("vt_img_extra_initrd_reset", grub_cmd_extra_initrd_reset, 0, N_(""));
+
+  ventoy_linux_args = grub_zalloc(sizeof(char *) * LINUX_MAX_ARGC);
+
+  my_mod = mod;
+}
+
+GRUB_MOD_FINI(linux)
+{
+  grub_unregister_command (cmd_linux);
+  grub_unregister_command (cmd_initrd);
+}

GRUB2/MOD_SRC/grub-2.04/grub-core/term/serial.c

+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2000,2001,2002,2003,2004,2005,2007,2008,2009,2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/serial.h>
+#include <grub/term.h>
+#include <grub/types.h>
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/terminfo.h>
+#if !defined (GRUB_MACHINE_EMU) && ((defined(__mips__) && _MIPS_SIM != _ABI64) || defined (__i386__) || defined (__x86_64__))
+#include <grub/cpu/io.h>
+#endif
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/list.h>
+#ifdef GRUB_MACHINE_MIPS_LOONGSON
+#include <grub/machine/kernel.h>
+#endif
+#ifdef GRUB_MACHINE_IEEE1275
+#include <grub/ieee1275/console.h>
+#endif
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#define FOR_SERIAL_PORTS(var) FOR_LIST_ELEMENTS((var), (grub_serial_ports))
+
+enum
+  {
+    OPTION_UNIT,
+    OPTION_PORT,
+    OPTION_SPEED,
+    OPTION_WORD,
+    OPTION_PARITY,
+    OPTION_STOP,
+    OPTION_BASE_CLOCK,
+    OPTION_RTSCTS
+  };
+
+/* Argument options.  */
+static const struct grub_arg_option options[] =
+{
+  {"unit",   'u', 0, N_("Set the serial unit."),             0, ARG_TYPE_INT},
+  {"port",   'p', 0, N_("Set the serial port address."),     0, ARG_TYPE_STRING},
+  {"speed",  's', 0, N_("Set the serial port speed."),       0, ARG_TYPE_INT},
+  {"word",   'w', 0, N_("Set the serial port word length."), 0, ARG_TYPE_INT},
+  {"parity", 'r', 0, N_("Set the serial port parity."),      0, ARG_TYPE_STRING},
+  {"stop",   't', 0, N_("Set the serial port stop bits."),   0, ARG_TYPE_INT},
+  {"base-clock",   'b', 0, N_("Set the base frequency."),   0, ARG_TYPE_STRING},
+  {"rtscts",   'f', 0, N_("Enable/disable RTS/CTS."),   "on|off", ARG_TYPE_STRING},
+  {0, 0, 0, 0, 0, 0}
+};
+
+static struct grub_serial_port *grub_serial_ports;
+
+struct grub_serial_output_state
+{
+  struct grub_terminfo_output_state tinfo;
+  struct grub_serial_port *port;
+};
+
+struct grub_serial_input_state
+{
+  struct grub_terminfo_input_state tinfo;
+  struct grub_serial_port *port;
+};
+
+static void 
+serial_put (grub_term_output_t term, const int c)
+{
+  struct grub_serial_output_state *data = term->data;
+  data->port->driver->put (data->port, c);
+}
+
+static int
+serial_fetch (grub_term_input_t term)
+{
+  struct grub_serial_input_state *data = term->data;
+  return data->port->driver->fetch (data->port);
+}
+
+static const struct grub_serial_input_state grub_serial_terminfo_input_template =
+  {
+    .tinfo =
+    {
+      .readkey = serial_fetch
+    }
+  };
+
+static const struct grub_serial_output_state grub_serial_terminfo_output_template =
+  {
+    .tinfo =
+    {
+      .put = serial_put,
+      .size = { 80, 24 }
+    }
+  };
+
+static struct grub_serial_input_state grub_serial_terminfo_input;
+
+static struct grub_serial_output_state grub_serial_terminfo_output;
+
+static int registered = 0;
+
+static struct grub_term_input grub_serial_term_input =
+{
+  .name = "serial",
+  .init = grub_terminfo_input_init,
+  .getkey = grub_terminfo_getkey,
+  .data = &grub_serial_terminfo_input
+};
+
+static struct grub_term_output grub_serial_term_output =
+{
+  .name = "serial",
+  .init = grub_terminfo_output_init,
+  .putchar = grub_terminfo_putchar,
+  .getwh = grub_terminfo_getwh,
+  .getxy = grub_terminfo_getxy,
+  .gotoxy = grub_terminfo_gotoxy,
+  .cls = grub_terminfo_cls,
+  .setcolorstate = grub_terminfo_setcolorstate,
+  .setcursor = grub_terminfo_setcursor,
+  .flags = GRUB_TERM_CODE_TYPE_ASCII,
+  .data = &grub_serial_terminfo_output,
+  .progress_update_divisor = GRUB_PROGRESS_SLOW
+};
+
+
+
+struct grub_serial_port *
+grub_serial_find (const char *name)
+{
+  struct grub_serial_port *port;
+
+  FOR_SERIAL_PORTS (port)
+    if (grub_strcmp (port->name, name) == 0)
+      break;
+
+#if ((defined(__mips__) && _MIPS_SIM != _ABI64) || defined (__i386__) || defined (__x86_64__)) && !defined(GRUB_MACHINE_EMU) && !defined(GRUB_MACHINE_ARC)
+  if (!port && grub_memcmp (name, "port", sizeof ("port") - 1) == 0
+      && grub_isxdigit (name [sizeof ("port") - 1]))
+    {
+      name = grub_serial_ns8250_add_port (grub_strtoul (&name[sizeof ("port") - 1],
+							0, 16));
+      if (!name)
+	return NULL;
+
+      FOR_SERIAL_PORTS (port)
+	if (grub_strcmp (port->name, name) == 0)
+	  break;
+    }
+#endif
+
+#ifdef GRUB_MACHINE_IEEE1275
+  if (!port && grub_memcmp (name, "ieee1275/", sizeof ("ieee1275/") - 1) == 0)
+    {
+      name = grub_ofserial_add_port (&name[sizeof ("ieee1275/") - 1]);
+      if (!name)
+	return NULL;
+
+      FOR_SERIAL_PORTS (port)
+	if (grub_strcmp (port->name, name) == 0)
+	  break;
+    }
+#endif
+
+  return port;
+}
+
+static grub_err_t
+grub_cmd_serial (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  char pname[40];
+  const char *name = NULL;
+  struct grub_serial_port *port;
+  struct grub_serial_config config;
+  grub_err_t err;
+
+  if (state[OPTION_UNIT].set)
+    {
+      grub_snprintf (pname, sizeof (pname), "com%ld",
+		     grub_strtoul (state[0].arg, 0, 0));
+      name = pname;
+    }
+
+  if (state[OPTION_PORT].set)
+    {
+      grub_snprintf (pname, sizeof (pname), "port%lx",
+		     grub_strtoul (state[1].arg, 0, 0));
+      name = pname;
+    }
+
+  if (argc >= 1)
+    name = args[0];
+
+  if (!name)
+    name = "com0";
+
+  port = grub_serial_find (name);
+  if (!port)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, 
+		       N_("serial port `%s' isn't found"),
+		       name);
+
+  config = port->config;
+
+  if (state[OPTION_SPEED].set) {
+    config.speed = grub_strtoul (state[OPTION_SPEED].arg, 0, 0);
+    if (config.speed == 0)
+      return grub_error (GRUB_ERR_BAD_ARGUMENT,
+			 N_("unsupported serial port parity"));
+  }
+
+  if (state[OPTION_WORD].set)
+    config.word_len = grub_strtoul (state[OPTION_WORD].arg, 0, 0);
+
+  if (state[OPTION_PARITY].set)
+    {
+      if (! grub_strcmp (state[OPTION_PARITY].arg, "no"))
+	config.parity = GRUB_SERIAL_PARITY_NONE;
+      else if (! grub_strcmp (state[OPTION_PARITY].arg, "odd"))
+	config.parity = GRUB_SERIAL_PARITY_ODD;
+      else if (! grub_strcmp (state[OPTION_PARITY].arg, "even"))
+	config.parity = GRUB_SERIAL_PARITY_EVEN;
+      else
+	return grub_error (GRUB_ERR_BAD_ARGUMENT,
+			   N_("unsupported serial port parity"));
+    }
+
+  if (state[OPTION_RTSCTS].set)
+    {
+      if (grub_strcmp (state[OPTION_RTSCTS].arg, "on") == 0)
+	config.rtscts = 1;
+      else if (grub_strcmp (state[OPTION_RTSCTS].arg, "off") == 0)
+	config.rtscts = 0;
+      else
+	return grub_error (GRUB_ERR_BAD_ARGUMENT,
+			   N_("unsupported serial port flow control"));
+    }
+
+  if (state[OPTION_STOP].set)
+    {
+      if (! grub_strcmp (state[OPTION_STOP].arg, "1"))
+	config.stop_bits = GRUB_SERIAL_STOP_BITS_1;
+      else if (! grub_strcmp (state[OPTION_STOP].arg, "2"))
+	config.stop_bits = GRUB_SERIAL_STOP_BITS_2;
+      else if (! grub_strcmp (state[OPTION_STOP].arg, "1.5"))
+	config.stop_bits = GRUB_SERIAL_STOP_BITS_1_5;
+      else
+	return grub_error (GRUB_ERR_BAD_ARGUMENT,
+			   N_("unsupported serial port stop bits number"));
+    }
+
+  if (state[OPTION_BASE_CLOCK].set)
+    {
+      char *ptr;
+      config.base_clock = grub_strtoull (state[OPTION_BASE_CLOCK].arg, &ptr, 0);
+      if (grub_errno)
+	return grub_errno;
+      if (ptr && *ptr == 'M')
+	config.base_clock *= 1000000;
+      if (ptr && (*ptr == 'k' || *ptr == 'K'))
+	config.base_clock *= 1000;
+    }
+
+  if (config.speed == 0)
+    config.speed = 9600;
+
+  /* Initialize with new settings.  */
+  err = port->driver->configure (port, &config);
+  if (err)
+    return err;
+#if !defined (GRUB_MACHINE_EMU) && !defined(GRUB_MACHINE_ARC) && ((defined(__mips__) && _MIPS_SIM != _ABI64) || defined (__i386__) || defined (__x86_64__))
+
+  /* Compatibility kludge.  */
+  if (port->driver == &grub_ns8250_driver)
+    {
+      if (!registered)
+	{
+	  grub_terminfo_output_register (&grub_serial_term_output, "vt100");
+
+	  grub_term_register_input ("serial", &grub_serial_term_input);
+	  grub_term_register_output ("serial", &grub_serial_term_output);
+	}
+      grub_serial_terminfo_output.port = port;
+      grub_serial_terminfo_input.port = port;
+      registered = 1;
+    }
+#endif
+  return GRUB_ERR_NONE;
+}
+
+#ifdef GRUB_MACHINE_MIPS_LOONGSON
+const char loongson_defserial[][6] =
+  {
+    [GRUB_ARCH_MACHINE_YEELOONG] = "com0",
+    [GRUB_ARCH_MACHINE_FULOONG2F]  = "com2",
+    [GRUB_ARCH_MACHINE_FULOONG2E]  = "com1"
+  };
+#endif
+
+grub_err_t
+grub_serial_register (struct grub_serial_port *port)
+{
+  struct grub_term_input *in;
+  struct grub_term_output *out;
+  struct grub_serial_input_state *indata;
+  struct grub_serial_output_state *outdata;
+
+  in = grub_malloc (sizeof (*in));
+  if (!in)
+    return grub_errno;
+
+  indata = grub_malloc (sizeof (*indata));
+  if (!indata)
+    {
+      grub_free (in);
+      return grub_errno;
+    }
+
+  grub_memcpy (in, &grub_serial_term_input, sizeof (*in));
+  in->data = indata;
+  in->name = grub_xasprintf ("serial_%s", port->name);
+  grub_memcpy (indata, &grub_serial_terminfo_input, sizeof (*indata));
+
+  if (!in->name)
+    {
+      grub_free (in);
+      grub_free (indata);
+      return grub_errno;
+    }
+
+  out = grub_zalloc (sizeof (*out));
+  if (!out)
+    {
+      grub_free (indata);
+      grub_free ((char *) in->name);
+      grub_free (in);
+      return grub_errno;
+    }
+
+  outdata = grub_malloc (sizeof (*outdata));
+  if (!outdata)
+    {
+      grub_free (indata);
+      grub_free ((char *) in->name);
+      grub_free (out);
+      grub_free (in);
+      return grub_errno;
+    }
+
+  grub_memcpy (out, &grub_serial_term_output, sizeof (*out));
+  out->data = outdata;
+  out->name = in->name;
+  grub_memcpy (outdata, &grub_serial_terminfo_output, sizeof (*outdata));
+
+  grub_list_push (GRUB_AS_LIST_P (&grub_serial_ports), GRUB_AS_LIST (port));
+  ((struct grub_serial_input_state *) in->data)->port = port;
+  ((struct grub_serial_output_state *) out->data)->port = port;
+  port->term_in = in;
+  port->term_out = out;
+  grub_terminfo_output_register (out, "vt100");
+#ifdef GRUB_MACHINE_MIPS_LOONGSON
+  if (grub_strcmp (port->name, loongson_defserial[grub_arch_machine]) == 0)
+    {
+      grub_term_register_input_active ("serial_*", in);
+      grub_term_register_output_active ("serial_*", out);
+    }
+  else
+    {
+      grub_term_register_input_inactive ("serial_*", in);
+      grub_term_register_output_inactive ("serial_*", out);
+    }
+#else
+  grub_term_register_input ("serial_*", in);
+  grub_term_register_output ("serial_*", out);
+#endif
+
+  return GRUB_ERR_NONE;
+}
+
+void
+grub_serial_unregister (struct grub_serial_port *port)
+{
+  if (port->driver->fini)
+    port->driver->fini (port);
+  
+  if (port->term_in)
+    grub_term_unregister_input (port->term_in);
+  if (port->term_out)
+    grub_term_unregister_output (port->term_out);
+
+  grub_list_remove (GRUB_AS_LIST (port));
+}
+
+void
+grub_serial_unregister_driver (struct grub_serial_driver *driver)
+{
+  struct grub_serial_port *port, *next;
+  for (port = grub_serial_ports; port; port = next)
+    {
+      next = port->next;
+      if (port->driver == driver)
+	grub_serial_unregister (port);
+    }
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(serial)
+{
+  cmd = grub_register_extcmd ("serial", grub_cmd_serial, 0,
+			      N_("[OPTIONS...]"),
+			      N_("Configure serial port."), options);
+  grub_memcpy (&grub_serial_terminfo_output,
+	       &grub_serial_terminfo_output_template,
+	       sizeof (grub_serial_terminfo_output));
+
+  grub_memcpy (&grub_serial_terminfo_input,
+	       &grub_serial_terminfo_input_template,
+	       sizeof (grub_serial_terminfo_input));
+
+#if !defined (GRUB_MACHINE_EMU) && !defined(GRUB_MACHINE_ARC) && ((defined(__mips__) && _MIPS_SIM != _ABI64) || defined (__i386__) || defined (__x86_64__))
+  grub_ns8250_init ();
+#endif
+#ifdef GRUB_MACHINE_IEEE1275
+  grub_ofserial_init ();
+#endif
+#ifdef GRUB_MACHINE_EFI
+  grub_efiserial_init ();
+#endif
+#ifdef GRUB_MACHINE_ARC
+  grub_arcserial_init ();
+#endif
+}
+
+GRUB_MOD_FINI(serial)
+{
+  while (grub_serial_ports)
+    grub_serial_unregister (grub_serial_ports);
+  if (registered)
+    {
+      grub_term_unregister_input (&grub_serial_term_input);
+      grub_term_unregister_output (&grub_serial_term_output);
+    }
+  grub_unregister_extcmd (cmd);
+}

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy.c

@@ -1427,6 +1427,11 @@ static int ventoy_arch_mode_init(void)
         g_ventoy_plat_data = VTOY_PLAT_ARM64_UEFI;
         grub_snprintf(g_arch_mode_suffix, sizeof(g_arch_mode_suffix), "%s", "aa64");
     }
+    else if (grub_strcmp(GRUB_TARGET_CPU, "mips64el") == 0)
+    {
+        g_ventoy_plat_data = VTOY_PLAT_MIPS_UEFI;
+        grub_snprintf(g_arch_mode_suffix, sizeof(g_arch_mode_suffix), "%s", "mips");
+    }
     else
     {
         g_ventoy_plat_data = VTOY_PLAT_X86_64_UEFI;

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_def.h

@@ -56,6 +56,16 @@
 #define VTOY_PLAT_ARM64_UEFI    0x41413634
 #define VTOY_PLAT_X86_64_UEFI   0x55454649
 #define VTOY_PLAT_X86_LEGACY    0x42494f53
+#define VTOY_PLAT_MIPS_UEFI     0x4D495053
+
+#define VTOY_COMM_CPIO  "ventoy.cpio"
+#if defined(__arm__) || defined(__aarch64__)
+#define VTOY_ARCH_CPIO  "ventoy_arm64.cpio"
+#elif defined(__mips__)
+#define VTOY_ARCH_CPIO  "ventoy_mips64.cpio"
+#else
+#define VTOY_ARCH_CPIO  "ventoy_x86.cpio"
+#endif
 
 #define VTOY_PWD_CORRUPTED(err) \
 {\

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_linux.c

@@ -1124,6 +1124,7 @@ grub_err_t ventoy_cmd_load_cpio(grub_extcmd_context_t ctxt, int argc, char **arg
     grub_uint32_t injection_size = 0;
     grub_uint32_t dud_size = 0;
     grub_file_t file;
+    grub_file_t archfile;
     grub_file_t tmpfile;
     ventoy_img_chunk_list chunk_list;
 
@@ -1142,12 +1143,21 @@ grub_err_t ventoy_cmd_load_cpio(grub_extcmd_context_t ctxt, int argc, char **arg
 
     img_chunk_size = g_img_chunk_list.cur_chunk * sizeof(ventoy_img_chunk);
 
-    file = ventoy_grub_file_open(VENTOY_FILE_TYPE, "%s", args[0]);
+    file = ventoy_grub_file_open(VENTOY_FILE_TYPE, "%s/%s", args[0], VTOY_COMM_CPIO);
     if (!file)
     {
-        return grub_error(GRUB_ERR_BAD_ARGUMENT, "Can't open file %s\n", args[0]); 
+        return grub_error(GRUB_ERR_BAD_ARGUMENT, "Can't open file %s/%s\n", args[0], VTOY_COMM_CPIO); 
+    }
+
+    archfile = ventoy_grub_file_open(VENTOY_FILE_TYPE, "%s/%s", args[0], VTOY_ARCH_CPIO);
+    if (!archfile)
+    {
+        return grub_error(GRUB_ERR_BAD_ARGUMENT, "Can't open file %s/%s\n", args[0], VTOY_ARCH_CPIO);
+        grub_file_close(file);
     }
 
+    debug("load %s %s success\n", VTOY_COMM_CPIO, VTOY_ARCH_CPIO);
+
     if (g_ventoy_cpio_buf)
     {
         grub_free(g_ventoy_cpio_buf);
@@ -1234,22 +1244,29 @@ grub_err_t ventoy_cmd_load_cpio(grub_extcmd_context_t ctxt, int argc, char **arg
         debug("dud not configed %s\n", args[1]);
     }
 
-    g_ventoy_cpio_buf = grub_malloc(file->size + 40960 + template_size + 
+    g_ventoy_cpio_buf = grub_malloc(file->size + archfile->size + 40960 + template_size + 
         persistent_size + injection_size + dud_size + img_chunk_size);
     if (NULL == g_ventoy_cpio_buf)
     {
         grub_file_close(file);
+        grub_file_close(archfile);
         return grub_error(GRUB_ERR_BAD_ARGUMENT, "Can't alloc memory %llu\n", file->size);
     }
 
     grub_file_read(file, g_ventoy_cpio_buf, file->size);
-
     buf = (grub_uint8_t *)(g_ventoy_cpio_buf + file->size - 4);
     while (*((grub_uint32_t *)buf) != 0x37303730)
     {
         buf -= 4;
     }
 
+    grub_file_read(archfile, buf, archfile->size);
+    buf += (archfile->size - 4);
+    while (*((grub_uint32_t *)buf) != 0x37303730)
+    {
+        buf -= 4;
+    }
+
     /* get initrd head len */
     initrd_head_len = ventoy_cpio_newc_fill_head(buf, 0, NULL, "initrd000.xx");
 
@@ -1313,6 +1330,7 @@ grub_err_t ventoy_cmd_load_cpio(grub_extcmd_context_t ctxt, int argc, char **arg
     ventoy_cpio_newc_fill_head(g_ventoy_initrd_head, 0, NULL, "initrd000.xx");
 
     grub_file_close(file);
+    grub_file_close(archfile);
 
     if (grub_strcmp(args[3], "busybox=64") == 0)
     {
@@ -1324,6 +1342,11 @@ grub_err_t ventoy_cmd_load_cpio(grub_extcmd_context_t ctxt, int argc, char **arg
         debug("cpio busybox proc %s\n", args[3]);
         ventoy_cpio_busybox64((cpio_newc_header *)g_ventoy_cpio_buf, "a64");
     }
+    else if (grub_strcmp(args[3], "busybox=m64") == 0)
+    {
+        debug("cpio busybox proc %s\n", args[3]);
+        ventoy_cpio_busybox64((cpio_newc_header *)g_ventoy_cpio_buf, "m64");
+    }
 
     VENTOY_CMD_RETURN(GRUB_ERR_NONE);
 }

GRUB2/MOD_SRC/grub-2.04/include/grub/cache.h

+/* cache.h - Flush the processor's cache.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2004,2007  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_CACHE_H
+#define GRUB_CACHE_H	1
+
+#include <grub/symbol.h>
+#include <grub/types.h>
+
+#if defined (__i386__) || defined (__x86_64__)
+static inline void
+grub_arch_sync_caches (void *address __attribute__ ((unused)),
+		       grub_size_t len __attribute__ ((unused)))
+{
+}
+#else
+void EXPORT_FUNC(grub_arch_sync_caches) (void *address, grub_size_t len);
+#endif
+
+#ifndef GRUB_MACHINE_EMU
+#if defined (__aarch64__) || defined (__ia64__) || defined (__powerpc__) || \
+    defined (__sparc__)
+
+#elif defined (__i386__) || defined (__x86_64__)
+static inline void
+grub_arch_sync_dma_caches (volatile void *address __attribute__ ((unused)),
+			   grub_size_t len __attribute__ ((unused)))
+{
+}
+#elif defined(__mips__) && (_MIPS_SIM != _ABI64)
+void EXPORT_FUNC(grub_arch_sync_dma_caches) (volatile void *address, grub_size_t len);
+#endif
+#endif
+
+#ifdef __arm__
+void
+grub_arm_cache_enable (void);
+#endif
+
+#endif /* ! GRUB_CACHE_HEADER */

GRUB2/MOD_SRC/grub-2.04/include/grub/dl.h

+/* dl.h - types and prototypes for loadable module support */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2002,2004,2005,2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_DL_H
+#define GRUB_DL_H	1
+
+#include <grub/symbol.h>
+#ifndef ASM_FILE
+#include <grub/err.h>
+#include <grub/types.h>
+#include <grub/elf.h>
+#include <grub/list.h>
+#include <grub/misc.h>
+#endif
+
+/*
+ * Macros GRUB_MOD_INIT and GRUB_MOD_FINI are also used by build rules
+ * to collect module names, so we define them only when they are not
+ * defined already.
+ */
+#ifndef ASM_FILE
+
+#ifndef GRUB_MOD_INIT
+
+#if !defined (GRUB_UTIL) && !defined (GRUB_MACHINE_EMU) && !defined (GRUB_KERNEL)
+
+#define GRUB_MOD_INIT(name)	\
+static void grub_mod_init (grub_dl_t mod __attribute__ ((unused))) __attribute__ ((used)); \
+static void \
+grub_mod_init (grub_dl_t mod __attribute__ ((unused)))
+
+#define GRUB_MOD_FINI(name)	\
+static void grub_mod_fini (void) __attribute__ ((used)); \
+static void \
+grub_mod_fini (void)
+
+#elif defined (GRUB_KERNEL)
+
+#define GRUB_MOD_INIT(name)	\
+static void grub_mod_init (grub_dl_t mod __attribute__ ((unused))) __attribute__ ((used)); \
+void \
+grub_##name##_init (void) { grub_mod_init (0); } \
+static void \
+grub_mod_init (grub_dl_t mod __attribute__ ((unused)))
+
+#define GRUB_MOD_FINI(name)	\
+static void grub_mod_fini (void) __attribute__ ((used)); \
+void \
+grub_##name##_fini (void) { grub_mod_fini (); } \
+static void \
+grub_mod_fini (void)
+
+#else
+
+#define GRUB_MOD_INIT(name)	\
+static void grub_mod_init (grub_dl_t mod __attribute__ ((unused))) __attribute__ ((used)); \
+void grub_##name##_init (void); \
+void \
+grub_##name##_init (void) { grub_mod_init (0); } \
+static void \
+grub_mod_init (grub_dl_t mod __attribute__ ((unused)))
+
+#define GRUB_MOD_FINI(name)	\
+static void grub_mod_fini (void) __attribute__ ((used)); \
+void grub_##name##_fini (void); \
+void \
+grub_##name##_fini (void) { grub_mod_fini (); } \
+static void \
+grub_mod_fini (void)
+
+#endif
+
+#endif
+
+#endif
+
+#ifndef ASM_FILE
+#ifdef __APPLE__
+#define GRUB_MOD_SECTION(x) "_" #x ", _" #x ""
+#else
+#define GRUB_MOD_SECTION(x) "." #x
+#endif
+#else
+#ifdef __APPLE__
+#define GRUB_MOD_SECTION(x) _ ## x , _ ##x 
+#else
+#define GRUB_MOD_SECTION(x) . ## x
+#endif
+#endif
+
+/* Me, Vladimir Serbinenko, hereby I add this module check as per new
+   GNU module policy. Note that this license check is informative only.
+   Modules have to be licensed under GPLv3 or GPLv3+ (optionally
+   multi-licensed under other licences as well) independently of the
+   presence of this check and solely by linking (module loading in GRUB
+   constitutes linking) and GRUB core being licensed under GPLv3+.
+   Be sure to understand your license obligations.
+*/
+#ifndef ASM_FILE
+#if GNUC_PREREQ (3,2)
+#define ATTRIBUTE_USED __used__
+#else
+#define ATTRIBUTE_USED __unused__
+#endif
+#define GRUB_MOD_LICENSE(license)	\
+  static char grub_module_license[] __attribute__ ((section (GRUB_MOD_SECTION (module_license)), ATTRIBUTE_USED)) = "LICENSE=" license;
+#define GRUB_MOD_DEP(name)	\
+static const char grub_module_depend_##name[] \
+ __attribute__((section(GRUB_MOD_SECTION(moddeps)), ATTRIBUTE_USED)) = #name
+#define GRUB_MOD_NAME(name)	\
+static const char grub_module_name_##name[] \
+ __attribute__((section(GRUB_MOD_SECTION(modname)), __used__)) = #name
+#else
+#ifdef __APPLE__
+.macro GRUB_MOD_LICENSE
+  .section GRUB_MOD_SECTION(module_license)
+  .ascii "LICENSE="
+  .ascii $0
+  .byte 0
+.endm
+#else
+.macro GRUB_MOD_LICENSE license
+  .section GRUB_MOD_SECTION(module_license), "a"
+  .ascii "LICENSE="
+  .ascii "\license"
+  .byte 0
+.endm
+#endif
+#endif
+
+/* Under GPL license obligations you have to distribute your module
+   under GPLv3(+). However, you can also distribute the same code under
+   another license as long as GPLv3(+) version is provided.
+*/
+#define GRUB_MOD_DUAL_LICENSE(x)
+
+#ifndef ASM_FILE
+
+struct grub_dl_segment
+{
+  struct grub_dl_segment *next;
+  void *addr;
+  grub_size_t size;
+  unsigned section;
+};
+typedef struct grub_dl_segment *grub_dl_segment_t;
+
+struct grub_dl;
+
+struct grub_dl_dep
+{
+  struct grub_dl_dep *next;
+  struct grub_dl *mod;
+};
+typedef struct grub_dl_dep *grub_dl_dep_t;
+
+#ifndef GRUB_UTIL
+struct grub_dl
+{
+  char *name;
+  int ref_count;
+  int persistent;
+  grub_dl_dep_t dep;
+  grub_dl_segment_t segment;
+  Elf_Sym *symtab;
+  grub_size_t symsize;
+  void (*init) (struct grub_dl *mod);
+  void (*fini) (void);
+#if !defined (__i386__) && !defined (__x86_64__)
+  void *got;
+  void *gotptr;
+  void *tramp;
+  void *trampptr;
+#endif
+#if defined(__mips__) && (_MIPS_SIM != _ABI64)
+  grub_uint32_t *reginfo;
+#endif
+  void *base;
+  grub_size_t sz;
+  struct grub_dl *next;
+};
+#endif
+typedef struct grub_dl *grub_dl_t;
+
+grub_dl_t grub_dl_load_file (const char *filename);
+grub_dl_t EXPORT_FUNC(grub_dl_load) (const char *name);
+grub_dl_t grub_dl_load_core (void *addr, grub_size_t size);
+grub_dl_t EXPORT_FUNC(grub_dl_load_core_noinit) (void *addr, grub_size_t size);
+int EXPORT_FUNC(grub_dl_unload) (grub_dl_t mod);
+void grub_dl_unload_unneeded (void);
+int EXPORT_FUNC(grub_dl_ref) (grub_dl_t mod);
+int EXPORT_FUNC(grub_dl_unref) (grub_dl_t mod);
+extern grub_dl_t EXPORT_VAR(grub_dl_head);
+
+#ifndef GRUB_UTIL
+
+#define FOR_DL_MODULES(var) FOR_LIST_ELEMENTS ((var), (grub_dl_head))
+
+#ifdef GRUB_MACHINE_EMU
+void *
+grub_osdep_dl_memalign (grub_size_t align, grub_size_t size);
+void
+grub_dl_osdep_dl_free (void *ptr);
+#endif
+
+static inline void
+grub_dl_init (grub_dl_t mod)
+{
+  if (mod->init)
+    (mod->init) (mod);
+
+  mod->next = grub_dl_head;
+  grub_dl_head = mod;
+}
+
+static inline grub_dl_t
+grub_dl_get (const char *name)
+{
+  grub_dl_t l;
+
+  FOR_DL_MODULES(l)
+    if (grub_strcmp (name, l->name) == 0)
+      return l;
+
+  return 0;
+}
+
+static inline void
+grub_dl_set_persistent (grub_dl_t mod)
+{
+  mod->persistent = 1;
+}
+
+static inline int
+grub_dl_is_persistent (grub_dl_t mod)
+{
+  return mod->persistent;
+}
+
+#endif
+
+grub_err_t grub_dl_register_symbol (const char *name, void *addr,
+				    int isfunc, grub_dl_t mod);
+
+grub_err_t grub_arch_dl_check_header (void *ehdr);
+#ifndef GRUB_UTIL
+grub_err_t
+grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr,
+			       Elf_Shdr *s, grub_dl_segment_t seg);
+#endif
+
+#if defined (__mips__) && (_MIPS_SIM != _ABI64)
+#define GRUB_LINKER_HAVE_INIT 1
+void grub_arch_dl_init_linker (void);
+#endif
+
+#define GRUB_IA64_DL_TRAMP_ALIGN 16
+#define GRUB_IA64_DL_GOT_ALIGN 16
+
+grub_err_t
+grub_ia64_dl_get_tramp_got_size (const void *ehdr, grub_size_t *tramp,
+				 grub_size_t *got);
+grub_err_t
+grub_arm64_dl_get_tramp_got_size (const void *ehdr, grub_size_t *tramp,
+				  grub_size_t *got);
+
+#if defined (__ia64__)
+#define GRUB_ARCH_DL_TRAMP_ALIGN GRUB_IA64_DL_TRAMP_ALIGN
+#define GRUB_ARCH_DL_GOT_ALIGN GRUB_IA64_DL_GOT_ALIGN
+#define grub_arch_dl_get_tramp_got_size grub_ia64_dl_get_tramp_got_size
+#elif defined (__aarch64__)
+#define grub_arch_dl_get_tramp_got_size grub_arm64_dl_get_tramp_got_size
+#else
+grub_err_t
+grub_arch_dl_get_tramp_got_size (const void *ehdr, grub_size_t *tramp,
+				 grub_size_t *got);
+#endif
+
+#if defined (__powerpc__) || (defined (__mips__) && (_MIPS_SIM != _ABI64)) || defined (__arm__) || \
+    (defined(__riscv) && (__riscv_xlen == 32))
+#define GRUB_ARCH_DL_TRAMP_ALIGN 4
+#define GRUB_ARCH_DL_GOT_ALIGN 4
+#endif
+
+#if defined (__aarch64__) || defined (__sparc__) || (defined (__mips__) && (_MIPS_SIM == _ABI64)) || \
+    (defined(__riscv) && (__riscv_xlen == 64))
+#define GRUB_ARCH_DL_TRAMP_ALIGN 8
+#define GRUB_ARCH_DL_GOT_ALIGN 8
+#endif
+
+#endif
+
+#endif /* ! GRUB_DL_H */

GRUB2/MOD_SRC/grub-2.04/include/grub/efi/api.h

+/* efi.h - declare EFI types and functions */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2006,2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_EFI_API_HEADER
+#define GRUB_EFI_API_HEADER	1
+
+#include <grub/types.h>
+#include <grub/symbol.h>
+
+/* For consistency and safety, we name the EFI-defined types differently.
+   All names are transformed into lower case, _t appended, and
+   grub_efi_ prepended.  */
+
+/* Constants.  */
+#define GRUB_EFI_EVT_TIMER				0x80000000
+#define GRUB_EFI_EVT_RUNTIME				0x40000000
+#define GRUB_EFI_EVT_RUNTIME_CONTEXT			0x20000000
+#define GRUB_EFI_EVT_NOTIFY_WAIT			0x00000100
+#define GRUB_EFI_EVT_NOTIFY_SIGNAL			0x00000200
+#define GRUB_EFI_EVT_SIGNAL_EXIT_BOOT_SERVICES		0x00000201
+#define GRUB_EFI_EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE	0x60000202
+
+#define GRUB_EFI_TPL_APPLICATION	4
+#define GRUB_EFI_TPL_CALLBACK		8
+#define GRUB_EFI_TPL_NOTIFY		16
+#define GRUB_EFI_TPL_HIGH_LEVEL		31
+
+#define GRUB_EFI_MEMORY_UC	0x0000000000000001LL
+#define GRUB_EFI_MEMORY_WC	0x0000000000000002LL
+#define GRUB_EFI_MEMORY_WT	0x0000000000000004LL
+#define GRUB_EFI_MEMORY_WB	0x0000000000000008LL
+#define GRUB_EFI_MEMORY_UCE	0x0000000000000010LL
+#define GRUB_EFI_MEMORY_WP	0x0000000000001000LL
+#define GRUB_EFI_MEMORY_RP	0x0000000000002000LL
+#define GRUB_EFI_MEMORY_XP	0x0000000000004000LL
+#define GRUB_EFI_MEMORY_NV	0x0000000000008000LL
+#define GRUB_EFI_MEMORY_MORE_RELIABLE	0x0000000000010000LL
+#define GRUB_EFI_MEMORY_RO	0x0000000000020000LL
+#define GRUB_EFI_MEMORY_RUNTIME	0x8000000000000000LL
+
+#define GRUB_EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL	0x00000001
+#define GRUB_EFI_OPEN_PROTOCOL_GET_PROTOCOL		0x00000002
+#define GRUB_EFI_OPEN_PROTOCOL_TEST_PROTOCOL		0x00000004
+#define GRUB_EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER	0x00000008
+#define GRUB_EFI_OPEN_PROTOCOL_BY_DRIVER		0x00000010
+#define GRUB_EFI_OPEN_PROTOCOL_BY_EXCLUSIVE		0x00000020
+
+#define GRUB_EFI_OS_INDICATIONS_BOOT_TO_FW_UI	0x0000000000000001ULL
+
+#define GRUB_EFI_VARIABLE_NON_VOLATILE		0x0000000000000001
+#define GRUB_EFI_VARIABLE_BOOTSERVICE_ACCESS	0x0000000000000002
+#define GRUB_EFI_VARIABLE_RUNTIME_ACCESS	0x0000000000000004
+
+#define GRUB_EFI_TIME_ADJUST_DAYLIGHT	0x01
+#define GRUB_EFI_TIME_IN_DAYLIGHT	0x02
+
+#define GRUB_EFI_UNSPECIFIED_TIMEZONE	0x07FF
+
+#define GRUB_EFI_OPTIONAL_PTR	0x00000001
+
+#define GRUB_EFI_LOADED_IMAGE_GUID	\
+  { 0x5b1b31a1, 0x9562, 0x11d2, \
+    { 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \
+  }
+
+#define GRUB_EFI_DISK_IO_GUID	\
+  { 0xce345171, 0xba0b, 0x11d2, \
+    { 0x8e, 0x4f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \
+  }
+
+#define GRUB_EFI_BLOCK_IO_GUID	\
+  { 0x964e5b21, 0x6459, 0x11d2, \
+    { 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \
+  }
+
+#define GRUB_EFI_SERIAL_IO_GUID \
+  { 0xbb25cf6f, 0xf1d4, 0x11d2, \
+    { 0x9a, 0x0c, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0xfd } \
+  }
+
+#define GRUB_EFI_SIMPLE_NETWORK_GUID	\
+  { 0xa19832b9, 0xac25, 0x11d3, \
+    { 0x9a, 0x2d, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
+  }
+
+#define GRUB_EFI_PXE_GUID	\
+  { 0x03c4e603, 0xac28, 0x11d3, \
+    { 0x9a, 0x2d, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
+  }
+
+#define GRUB_EFI_DEVICE_PATH_GUID	\
+  { 0x09576e91, 0x6d3f, 0x11d2, \
+    { 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \
+  }
+
+#define GRUB_EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID \
+  { 0x387477c1, 0x69c7, 0x11d2, \
+    { 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \
+  }
+
+#define GRUB_EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID \
+  { 0xdd9e7534, 0x7762, 0x4698, \
+    { 0x8c, 0x14, 0xf5, 0x85, 0x17, 0xa6, 0x25, 0xaa } \
+  }
+
+#define GRUB_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID \
+  { 0x387477c2, 0x69c7, 0x11d2, \
+    { 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \
+  }
+
+#define GRUB_EFI_SIMPLE_POINTER_PROTOCOL_GUID \
+  { 0x31878c87, 0xb75, 0x11d5, \
+    { 0x9a, 0x4f, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
+  }
+
+#define GRUB_EFI_ABSOLUTE_POINTER_PROTOCOL_GUID \
+  { 0x8D59D32B, 0xC655, 0x4AE9, \
+    { 0x9B, 0x15, 0xF2, 0x59, 0x04, 0x99, 0x2A, 0x43 } \
+  }
+
+#define GRUB_EFI_DRIVER_BINDING_PROTOCOL_GUID \
+  { 0x18A031AB, 0xB443, 0x4D1A, \
+    { 0xA5, 0xC0, 0x0C, 0x09, 0x26, 0x1E, 0x9F, 0x71 } \
+  }
+
+#define GRUB_EFI_LOADED_IMAGE_PROTOCOL_GUID \
+  { 0x5B1B31A1, 0x9562, 0x11d2, \
+    { 0x8E, 0x3F, 0x00, 0xA0, 0xC9, 0x69, 0x72, 0x3B } \
+  }
+
+#define GRUB_EFI_LOAD_FILE_PROTOCOL_GUID \
+  { 0x56EC3091, 0x954C, 0x11d2, \
+    { 0x8E, 0x3F, 0x00, 0xA0, 0xC9, 0x69, 0x72, 0x3B } \
+  }
+
+#define GRUB_EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \
+  { 0x0964e5b22, 0x6459, 0x11d2, \
+    { 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \
+  }
+
+#define GRUB_EFI_TAPE_IO_PROTOCOL_GUID \
+  { 0x1e93e633, 0xd65a, 0x459e, \
+    { 0xab, 0x84, 0x93, 0xd9, 0xec, 0x26, 0x6d, 0x18 } \
+  }
+
+#define GRUB_EFI_UNICODE_COLLATION_PROTOCOL_GUID \
+  { 0x1d85cd7f, 0xf43d, 0x11d2, \
+    { 0x9a, 0x0c, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
+  }
+
+#define GRUB_EFI_SCSI_IO_PROTOCOL_GUID \
+  { 0x932f47e6, 0x2362, 0x4002, \
+    { 0x80, 0x3e, 0x3c, 0xd5, 0x4b, 0x13, 0x8f, 0x85 } \
+  }
+
+#define GRUB_EFI_USB2_HC_PROTOCOL_GUID \
+  { 0x3e745226, 0x9818, 0x45b6, \
+    { 0xa2, 0xac, 0xd7, 0xcd, 0x0e, 0x8b, 0xa2, 0xbc } \
+  }
+
+#define GRUB_EFI_DEBUG_SUPPORT_PROTOCOL_GUID \
+  { 0x2755590C, 0x6F3C, 0x42FA, \
+    { 0x9E, 0xA4, 0xA3, 0xBA, 0x54, 0x3C, 0xDA, 0x25 } \
+  }
+
+#define GRUB_EFI_DEBUGPORT_PROTOCOL_GUID \
+  { 0xEBA4E8D2, 0x3858, 0x41EC, \
+    { 0xA2, 0x81, 0x26, 0x47, 0xBA, 0x96, 0x60, 0xD0 } \
+  }
+
+#define GRUB_EFI_DECOMPRESS_PROTOCOL_GUID \
+  { 0xd8117cfe, 0x94a6, 0x11d4, \
+    { 0x9a, 0x3a, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
+  }
+
+#define GRUB_EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID \
+  { 0x8b843e20, 0x8132, 0x4852, \
+    { 0x90, 0xcc, 0x55, 0x1a, 0x4e, 0x4a, 0x7f, 0x1c } \
+  }
+
+#define GRUB_EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID \
+  { 0x379be4e, 0xd706, 0x437d, \
+    { 0xb0, 0x37, 0xed, 0xb8, 0x2f, 0xb7, 0x72, 0xa4 } \
+  }
+
+#define GRUB_EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL_GUID \
+  { 0x5c99a21, 0xc70f, 0x4ad2, \
+    { 0x8a, 0x5f, 0x35, 0xdf, 0x33, 0x43, 0xf5, 0x1e } \
+  }
+
+#define GRUB_EFI_ACPI_TABLE_PROTOCOL_GUID \
+  { 0xffe06bdd, 0x6107, 0x46a6, \
+    { 0x7b, 0xb2, 0x5a, 0x9c, 0x7e, 0xc5, 0x27, 0x5c} \
+  }
+
+#define GRUB_EFI_HII_CONFIG_ROUTING_PROTOCOL_GUID \
+  { 0x587e72d7, 0xcc50, 0x4f79, \
+    { 0x82, 0x09, 0xca, 0x29, 0x1f, 0xc1, 0xa1, 0x0f } \
+  }
+
+#define GRUB_EFI_HII_DATABASE_PROTOCOL_GUID \
+  { 0xef9fc172, 0xa1b2, 0x4693, \
+    { 0xb3, 0x27, 0x6d, 0x32, 0xfc, 0x41, 0x60, 0x42 } \
+  }
+
+#define GRUB_EFI_HII_STRING_PROTOCOL_GUID \
+  { 0xfd96974, 0x23aa, 0x4cdc, \
+    { 0xb9, 0xcb, 0x98, 0xd1, 0x77, 0x50, 0x32, 0x2a } \
+  }
+
+#define GRUB_EFI_HII_IMAGE_PROTOCOL_GUID \
+  { 0x31a6406a, 0x6bdf, 0x4e46, \
+    { 0xb2, 0xa2, 0xeb, 0xaa, 0x89, 0xc4, 0x9, 0x20 } \
+  }
+
+#define GRUB_EFI_HII_FONT_PROTOCOL_GUID \
+  { 0xe9ca4775, 0x8657, 0x47fc, \
+    { 0x97, 0xe7, 0x7e, 0xd6, 0x5a, 0x8, 0x43, 0x24 } \
+  }
+
+#define GRUB_EFI_HII_CONFIGURATION_ACCESS_PROTOCOL_GUID \
+  { 0x330d4706, 0xf2a0, 0x4e4f, \
+    { 0xa3, 0x69, 0xb6, 0x6f, 0xa8, 0xd5, 0x43, 0x85 } \
+  }
+
+#define GRUB_EFI_COMPONENT_NAME2_PROTOCOL_GUID \
+  { 0x6a7a5cff, 0xe8d9, 0x4f70, \
+    { 0xba, 0xda, 0x75, 0xab, 0x30, 0x25, 0xce, 0x14} \
+  }
+
+#define GRUB_EFI_USB_IO_PROTOCOL_GUID \
+  { 0x2B2F68D6, 0x0CD2, 0x44cf, \
+    { 0x8E, 0x8B, 0xBB, 0xA2, 0x0B, 0x1B, 0x5B, 0x75 } \
+  }
+
+#define GRUB_EFI_TIANO_CUSTOM_DECOMPRESS_GUID \
+  { 0xa31280ad, 0x481e, 0x41b6, \
+    { 0x95, 0xe8, 0x12, 0x7f, 0x4c, 0x98, 0x47, 0x79 } \
+  }
+
+#define GRUB_EFI_CRC32_GUIDED_SECTION_EXTRACTION_GUID \
+  { 0xfc1bcdb0, 0x7d31, 0x49aa, \
+    { 0x93, 0x6a, 0xa4, 0x60, 0x0d, 0x9d, 0xd0, 0x83 } \
+  }
+
+#define GRUB_EFI_LZMA_CUSTOM_DECOMPRESS_GUID \
+  { 0xee4e5898, 0x3914, 0x4259, \
+    { 0x9d, 0x6e, 0xdc, 0x7b, 0xd7, 0x94, 0x03, 0xcf } \
+  }
+
+#define GRUB_EFI_TSC_FREQUENCY_GUID \
+  { 0xdba6a7e3, 0xbb57, 0x4be7, \
+    { 0x8a, 0xf8, 0xd5, 0x78, 0xdb, 0x7e, 0x56, 0x87 } \
+  }
+
+#define GRUB_EFI_SYSTEM_RESOURCE_TABLE_GUID \
+  { 0xb122a263, 0x3661, 0x4f68, \
+    { 0x99, 0x29, 0x78, 0xf8, 0xb0, 0xd6, 0x21, 0x80 } \
+  }
+
+#define GRUB_EFI_DXE_SERVICES_TABLE_GUID \
+  { 0x05ad34ba, 0x6f02, 0x4214, \
+    { 0x95, 0x2e, 0x4d, 0xa0, 0x39, 0x8e, 0x2b, 0xb9 } \
+  }
+
+#define GRUB_EFI_HOB_LIST_GUID \
+  { 0x7739f24c, 0x93d7, 0x11d4, \
+    { 0x9a, 0x3a, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
+  }
+
+#define GRUB_EFI_MEMORY_TYPE_INFORMATION_GUID \
+  { 0x4c19049f, 0x4137, 0x4dd3, \
+    { 0x9c, 0x10, 0x8b, 0x97, 0xa8, 0x3f, 0xfd, 0xfa } \
+  }
+
+#define GRUB_EFI_DEBUG_IMAGE_INFO_TABLE_GUID \
+  { 0x49152e77, 0x1ada, 0x4764, \
+    { 0xb7, 0xa2, 0x7a, 0xfe, 0xfe, 0xd9, 0x5e, 0x8b } \
+  }
+
+#define GRUB_EFI_MPS_TABLE_GUID	\
+  { 0xeb9d2d2f, 0x2d88, 0x11d3, \
+    { 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
+  }
+
+#define GRUB_EFI_ACPI_TABLE_GUID	\
+  { 0xeb9d2d30, 0x2d88, 0x11d3, \
+    { 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
+  }
+
+#define GRUB_EFI_ACPI_20_TABLE_GUID	\
+  { 0x8868e871, 0xe4f1, 0x11d3, \
+    { 0xbc, 0x22, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 } \
+  }
+
+#define GRUB_EFI_SMBIOS_TABLE_GUID	\
+  { 0xeb9d2d31, 0x2d88, 0x11d3, \
+    { 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
+  }
+
+#define GRUB_EFI_SAL_TABLE_GUID \
+  { 0xeb9d2d32, 0x2d88, 0x11d3, \
+      { 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
+  }
+
+#define GRUB_EFI_HCDP_TABLE_GUID \
+  { 0xf951938d, 0x620b, 0x42ef, \
+      { 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98 } \
+  }
+
+#define GRUB_EFI_DEVICE_TREE_GUID \
+  { 0xb1b621d5, 0xf19c, 0x41a5, \
+      { 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0 } \
+  }
+
+#define GRUB_EFI_VENDOR_APPLE_GUID \
+  { 0x2B0585EB, 0xD8B8, 0x49A9,	\
+      { 0x8B, 0x8C, 0xE2, 0x1B, 0x01, 0xAE, 0xF2, 0xB7 } \
+  }
+
+struct grub_efi_sal_system_table
+{
+  grub_uint32_t signature;
+  grub_uint32_t total_table_len;
+  grub_uint16_t sal_rev;
+  grub_uint16_t entry_count;
+  grub_uint8_t checksum;
+  grub_uint8_t reserved1[7];
+  grub_uint16_t sal_a_version;
+  grub_uint16_t sal_b_version;
+  grub_uint8_t oem_id[32];
+  grub_uint8_t product_id[32];
+  grub_uint8_t reserved2[8];
+  grub_uint8_t entries[0];
+};
+
+enum
+  {
+    GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_ENTRYPOINT_DESCRIPTOR = 0,
+    GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_MEMORY_DESCRIPTOR = 1,
+    GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_PLATFORM_FEATURES = 2,
+    GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_TRANSLATION_REGISTER_DESCRIPTOR = 3,
+    GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_PURGE_TRANSLATION_COHERENCE = 4,
+    GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_AP_WAKEUP = 5
+  };
+
+struct grub_efi_sal_system_table_entrypoint_descriptor
+{
+  grub_uint8_t type;
+  grub_uint8_t pad[7];
+  grub_uint64_t pal_proc_addr;
+  grub_uint64_t sal_proc_addr;
+  grub_uint64_t global_data_ptr;
+  grub_uint64_t reserved[2];
+};
+
+struct grub_efi_sal_system_table_memory_descriptor
+{
+  grub_uint8_t type;
+  grub_uint8_t sal_used;
+  grub_uint8_t attr;
+  grub_uint8_t ar;
+  grub_uint8_t attr_mask;
+  grub_uint8_t mem_type;
+  grub_uint8_t usage;
+  grub_uint8_t unknown;
+  grub_uint64_t addr;
+  grub_uint64_t len;
+  grub_uint64_t unknown2;
+};
+
+struct grub_efi_sal_system_table_platform_features
+{
+  grub_uint8_t type;
+  grub_uint8_t flags;
+  grub_uint8_t reserved[14];
+};
+
+struct grub_efi_sal_system_table_translation_register_descriptor
+{
+  grub_uint8_t type;
+  grub_uint8_t register_type;
+  grub_uint8_t register_number;
+  grub_uint8_t reserved[5];
+  grub_uint64_t addr;
+  grub_uint64_t page_size;
+  grub_uint64_t reserver;
+};
+
+struct grub_efi_sal_system_table_purge_translation_coherence
+{
+  grub_uint8_t type;
+  grub_uint8_t reserved[3];  
+  grub_uint32_t ndomains;
+  grub_uint64_t coherence;
+};
+
+struct grub_efi_sal_system_table_ap_wakeup
+{
+  grub_uint8_t type;
+  grub_uint8_t mechanism;
+  grub_uint8_t reserved[6];
+  grub_uint64_t vector;
+};
+
+enum
+  {
+    GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_BUSLOCK = 1,
+    GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_IRQREDIRECT = 2,
+    GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_IPIREDIRECT = 4,
+    GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_ITCDRIFT = 8,
+  };
+
+typedef enum grub_efi_parity_type
+  {
+    GRUB_EFI_SERIAL_DEFAULT_PARITY,
+    GRUB_EFI_SERIAL_NO_PARITY,
+    GRUB_EFI_SERIAL_EVEN_PARITY,
+    GRUB_EFI_SERIAL_ODD_PARITY
+  }
+grub_efi_parity_type_t;
+
+typedef enum grub_efi_stop_bits
+  {
+    GRUB_EFI_SERIAL_DEFAULT_STOP_BITS,
+    GRUB_EFI_SERIAL_1_STOP_BIT,
+    GRUB_EFI_SERIAL_1_5_STOP_BITS,
+    GRUB_EFI_SERIAL_2_STOP_BITS
+  }
+  grub_efi_stop_bits_t;
+
+/* Enumerations.  */
+enum grub_efi_timer_delay
+  {
+    GRUB_EFI_TIMER_CANCEL,
+    GRUB_EFI_TIMER_PERIODIC,
+    GRUB_EFI_TIMER_RELATIVE
+  };
+typedef enum grub_efi_timer_delay grub_efi_timer_delay_t;
+
+enum grub_efi_allocate_type
+  {
+    GRUB_EFI_ALLOCATE_ANY_PAGES,
+    GRUB_EFI_ALLOCATE_MAX_ADDRESS,
+    GRUB_EFI_ALLOCATE_ADDRESS,
+    GRUB_EFI_MAX_ALLOCATION_TYPE
+  };
+typedef enum grub_efi_allocate_type grub_efi_allocate_type_t;
+
+enum grub_efi_memory_type
+  {
+    GRUB_EFI_RESERVED_MEMORY_TYPE,
+    GRUB_EFI_LOADER_CODE,
+    GRUB_EFI_LOADER_DATA,
+    GRUB_EFI_BOOT_SERVICES_CODE,
+    GRUB_EFI_BOOT_SERVICES_DATA,
+    GRUB_EFI_RUNTIME_SERVICES_CODE,
+    GRUB_EFI_RUNTIME_SERVICES_DATA,
+    GRUB_EFI_CONVENTIONAL_MEMORY,
+    GRUB_EFI_UNUSABLE_MEMORY,
+    GRUB_EFI_ACPI_RECLAIM_MEMORY,
+    GRUB_EFI_ACPI_MEMORY_NVS,
+    GRUB_EFI_MEMORY_MAPPED_IO,
+    GRUB_EFI_MEMORY_MAPPED_IO_PORT_SPACE,
+    GRUB_EFI_PAL_CODE,
+    GRUB_EFI_PERSISTENT_MEMORY,
+    GRUB_EFI_MAX_MEMORY_TYPE
+  };
+typedef enum grub_efi_memory_type grub_efi_memory_type_t;
+
+enum grub_efi_interface_type
+  {
+    GRUB_EFI_NATIVE_INTERFACE
+  };
+typedef enum grub_efi_interface_type grub_efi_interface_type_t;
+
+enum grub_efi_locate_search_type
+  {
+    GRUB_EFI_ALL_HANDLES,
+    GRUB_EFI_BY_REGISTER_NOTIFY,
+    GRUB_EFI_BY_PROTOCOL
+  };
+typedef enum grub_efi_locate_search_type grub_efi_locate_search_type_t;
+
+enum grub_efi_reset_type
+  {
+    GRUB_EFI_RESET_COLD,
+    GRUB_EFI_RESET_WARM,
+    GRUB_EFI_RESET_SHUTDOWN
+  };
+typedef enum grub_efi_reset_type grub_efi_reset_type_t;
+
+/* Types.  */
+typedef char grub_efi_boolean_t;
+#if GRUB_CPU_SIZEOF_VOID_P == 8
+typedef grub_int64_t grub_efi_intn_t;
+typedef grub_uint64_t grub_efi_uintn_t;
+#else
+typedef grub_int32_t grub_efi_intn_t;
+typedef grub_uint32_t grub_efi_uintn_t;
+#endif
+typedef grub_int8_t grub_efi_int8_t;
+typedef grub_uint8_t grub_efi_uint8_t;
+typedef grub_int16_t grub_efi_int16_t;
+typedef grub_uint16_t grub_efi_uint16_t;
+typedef grub_int32_t grub_efi_int32_t;
+typedef grub_uint32_t grub_efi_uint32_t;
+typedef grub_int64_t grub_efi_int64_t;
+typedef grub_uint64_t grub_efi_uint64_t;
+typedef grub_uint8_t grub_efi_char8_t;
+typedef grub_uint16_t grub_efi_char16_t;
+
+typedef grub_efi_intn_t grub_efi_status_t;
+
+#define GRUB_EFI_ERROR_CODE(value)	\
+  ((((grub_efi_status_t) 1) << (sizeof (grub_efi_status_t) * 8 - 1)) | (value))
+
+#define GRUB_EFI_WARNING_CODE(value)	(value)
+
+#define GRUB_EFI_SUCCESS		0
+
+#define GRUB_EFI_LOAD_ERROR		GRUB_EFI_ERROR_CODE (1)
+#define GRUB_EFI_INVALID_PARAMETER	GRUB_EFI_ERROR_CODE (2)
+#define GRUB_EFI_UNSUPPORTED		GRUB_EFI_ERROR_CODE (3)
+#define GRUB_EFI_BAD_BUFFER_SIZE	GRUB_EFI_ERROR_CODE (4)
+#define GRUB_EFI_BUFFER_TOO_SMALL	GRUB_EFI_ERROR_CODE (5)
+#define GRUB_EFI_NOT_READY		GRUB_EFI_ERROR_CODE (6)
+#define GRUB_EFI_DEVICE_ERROR		GRUB_EFI_ERROR_CODE (7)
+#define GRUB_EFI_WRITE_PROTECTED	GRUB_EFI_ERROR_CODE (8)
+#define GRUB_EFI_OUT_OF_RESOURCES	GRUB_EFI_ERROR_CODE (9)
+#define GRUB_EFI_VOLUME_CORRUPTED	GRUB_EFI_ERROR_CODE (10)
+#define GRUB_EFI_VOLUME_FULL		GRUB_EFI_ERROR_CODE (11)
+#define GRUB_EFI_NO_MEDIA		GRUB_EFI_ERROR_CODE (12)
+#define GRUB_EFI_MEDIA_CHANGED		GRUB_EFI_ERROR_CODE (13)
+#define GRUB_EFI_NOT_FOUND		GRUB_EFI_ERROR_CODE (14)
+#define GRUB_EFI_ACCESS_DENIED		GRUB_EFI_ERROR_CODE (15)
+#define GRUB_EFI_NO_RESPONSE		GRUB_EFI_ERROR_CODE (16)
+#define GRUB_EFI_NO_MAPPING		GRUB_EFI_ERROR_CODE (17)
+#define GRUB_EFI_TIMEOUT		GRUB_EFI_ERROR_CODE (18)
+#define GRUB_EFI_NOT_STARTED		GRUB_EFI_ERROR_CODE (19)
+#define GRUB_EFI_ALREADY_STARTED	GRUB_EFI_ERROR_CODE (20)
+#define GRUB_EFI_ABORTED		GRUB_EFI_ERROR_CODE (21)
+#define GRUB_EFI_ICMP_ERROR		GRUB_EFI_ERROR_CODE (22)
+#define GRUB_EFI_TFTP_ERROR		GRUB_EFI_ERROR_CODE (23)
+#define GRUB_EFI_PROTOCOL_ERROR		GRUB_EFI_ERROR_CODE (24)
+#define GRUB_EFI_INCOMPATIBLE_VERSION	GRUB_EFI_ERROR_CODE (25)
+#define GRUB_EFI_SECURITY_VIOLATION	GRUB_EFI_ERROR_CODE (26)
+#define GRUB_EFI_CRC_ERROR		GRUB_EFI_ERROR_CODE (27)
+
+#define GRUB_EFI_WARN_UNKNOWN_GLYPH	GRUB_EFI_WARNING_CODE (1)
+#define GRUB_EFI_WARN_DELETE_FAILURE	GRUB_EFI_WARNING_CODE (2)
+#define GRUB_EFI_WARN_WRITE_FAILURE	GRUB_EFI_WARNING_CODE (3)
+#define GRUB_EFI_WARN_BUFFER_TOO_SMALL	GRUB_EFI_WARNING_CODE (4)
+
+typedef void *grub_efi_handle_t;
+typedef void *grub_efi_event_t;
+typedef grub_efi_uint64_t grub_efi_lba_t;
+typedef grub_efi_uintn_t grub_efi_tpl_t;
+typedef grub_uint8_t grub_efi_mac_address_t[32];
+typedef grub_uint8_t grub_efi_ipv4_address_t[4];
+typedef grub_uint16_t grub_efi_ipv6_address_t[8];
+typedef grub_uint8_t grub_efi_ip_address_t[8] __attribute__ ((aligned(4)));
+typedef grub_efi_uint64_t grub_efi_physical_address_t;
+typedef grub_efi_uint64_t grub_efi_virtual_address_t;
+
+struct grub_efi_guid
+{
+  grub_uint32_t data1;
+  grub_uint16_t data2;
+  grub_uint16_t data3;
+  grub_uint8_t data4[8];
+} __attribute__ ((aligned(8)));
+typedef struct grub_efi_guid grub_efi_guid_t;
+
+struct grub_efi_packed_guid
+{
+  grub_uint32_t data1;
+  grub_uint16_t data2;
+  grub_uint16_t data3;
+  grub_uint8_t data4[8];
+} GRUB_PACKED;
+typedef struct grub_efi_packed_guid grub_efi_packed_guid_t;
+
+/* XXX although the spec does not specify the padding, this actually
+   must have the padding!  */
+struct grub_efi_memory_descriptor
+{
+  grub_efi_uint32_t type;
+  grub_efi_uint32_t padding;
+  grub_efi_physical_address_t physical_start;
+  grub_efi_virtual_address_t virtual_start;
+  grub_efi_uint64_t num_pages;
+  grub_efi_uint64_t attribute;
+} GRUB_PACKED;
+typedef struct grub_efi_memory_descriptor grub_efi_memory_descriptor_t;
+
+/* Device Path definitions.  */
+struct grub_efi_device_path
+{
+  grub_efi_uint8_t type;
+  grub_efi_uint8_t subtype;
+  grub_efi_uint16_t length;
+} GRUB_PACKED;
+typedef struct grub_efi_device_path grub_efi_device_path_t;
+/* XXX EFI does not define EFI_DEVICE_PATH_PROTOCOL but uses it.
+   It seems to be identical to EFI_DEVICE_PATH.  */
+typedef struct grub_efi_device_path grub_efi_device_path_protocol_t;
+
+#define GRUB_EFI_DEVICE_PATH_TYPE(dp)		((dp)->type & 0x7f)
+#define GRUB_EFI_DEVICE_PATH_SUBTYPE(dp)	((dp)->subtype)
+#define GRUB_EFI_DEVICE_PATH_LENGTH(dp)		((dp)->length)
+
+/* The End of Device Path nodes.  */
+#define GRUB_EFI_END_DEVICE_PATH_TYPE			(0xff & 0x7f)
+
+#define GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE		0xff
+#define GRUB_EFI_END_THIS_DEVICE_PATH_SUBTYPE		0x01
+
+#define GRUB_EFI_END_ENTIRE_DEVICE_PATH(dp)	\
+  (GRUB_EFI_DEVICE_PATH_TYPE (dp) == GRUB_EFI_END_DEVICE_PATH_TYPE \
+   && (GRUB_EFI_DEVICE_PATH_SUBTYPE (dp) \
+       == GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE))
+
+#define GRUB_EFI_NEXT_DEVICE_PATH(dp)	\
+  ((grub_efi_device_path_t *) ((char *) (dp) \
+                               + GRUB_EFI_DEVICE_PATH_LENGTH (dp)))
+
+/* Hardware Device Path.  */
+#define GRUB_EFI_HARDWARE_DEVICE_PATH_TYPE		1
+
+#define GRUB_EFI_PCI_DEVICE_PATH_SUBTYPE		1
+
+struct grub_efi_pci_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint8_t function;
+  grub_efi_uint8_t device;
+} GRUB_PACKED;
+typedef struct grub_efi_pci_device_path grub_efi_pci_device_path_t;
+
+#define GRUB_EFI_PCCARD_DEVICE_PATH_SUBTYPE		2
+
+struct grub_efi_pccard_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint8_t function;
+} GRUB_PACKED;
+typedef struct grub_efi_pccard_device_path grub_efi_pccard_device_path_t;
+
+#define GRUB_EFI_MEMORY_MAPPED_DEVICE_PATH_SUBTYPE	3
+
+struct grub_efi_memory_mapped_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint32_t memory_type;
+  grub_efi_physical_address_t start_address;
+  grub_efi_physical_address_t end_address;
+} GRUB_PACKED;
+typedef struct grub_efi_memory_mapped_device_path grub_efi_memory_mapped_device_path_t;
+
+#define GRUB_EFI_VENDOR_DEVICE_PATH_SUBTYPE		4
+
+struct grub_efi_vendor_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_packed_guid_t vendor_guid;
+  grub_efi_uint8_t vendor_defined_data[0];
+} GRUB_PACKED;
+typedef struct grub_efi_vendor_device_path grub_efi_vendor_device_path_t;
+
+#define GRUB_EFI_CONTROLLER_DEVICE_PATH_SUBTYPE		5
+
+struct grub_efi_controller_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint32_t controller_number;
+} GRUB_PACKED;
+typedef struct grub_efi_controller_device_path grub_efi_controller_device_path_t;
+
+/* ACPI Device Path.  */
+#define GRUB_EFI_ACPI_DEVICE_PATH_TYPE			2
+
+#define GRUB_EFI_ACPI_DEVICE_PATH_SUBTYPE		1
+
+struct grub_efi_acpi_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint32_t hid;
+  grub_efi_uint32_t uid;
+} GRUB_PACKED;
+typedef struct grub_efi_acpi_device_path grub_efi_acpi_device_path_t;
+
+#define GRUB_EFI_EXPANDED_ACPI_DEVICE_PATH_SUBTYPE	2
+
+struct grub_efi_expanded_acpi_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint32_t hid;
+  grub_efi_uint32_t uid;
+  grub_efi_uint32_t cid;
+  char hidstr[0];
+} GRUB_PACKED;
+typedef struct grub_efi_expanded_acpi_device_path grub_efi_expanded_acpi_device_path_t;
+
+#define GRUB_EFI_EXPANDED_ACPI_HIDSTR(dp)	\
+  (((grub_efi_expanded_acpi_device_path_t *) dp)->hidstr)
+#define GRUB_EFI_EXPANDED_ACPI_UIDSTR(dp)	\
+  (GRUB_EFI_EXPANDED_ACPI_HIDSTR(dp) \
+   + grub_strlen (GRUB_EFI_EXPANDED_ACPI_HIDSTR(dp)) + 1)
+#define GRUB_EFI_EXPANDED_ACPI_CIDSTR(dp)	\
+  (GRUB_EFI_EXPANDED_ACPI_UIDSTR(dp) \
+   + grub_strlen (GRUB_EFI_EXPANDED_ACPI_UIDSTR(dp)) + 1)
+
+/* Messaging Device Path.  */
+#define GRUB_EFI_MESSAGING_DEVICE_PATH_TYPE		3
+
+#define GRUB_EFI_ATAPI_DEVICE_PATH_SUBTYPE		1
+
+struct grub_efi_atapi_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint8_t primary_secondary;
+  grub_efi_uint8_t slave_master;
+  grub_efi_uint16_t lun;
+} GRUB_PACKED;
+typedef struct grub_efi_atapi_device_path grub_efi_atapi_device_path_t;
+
+#define GRUB_EFI_SCSI_DEVICE_PATH_SUBTYPE		2
+
+struct grub_efi_scsi_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint16_t pun;
+  grub_efi_uint16_t lun;
+} GRUB_PACKED;
+typedef struct grub_efi_scsi_device_path grub_efi_scsi_device_path_t;
+
+#define GRUB_EFI_FIBRE_CHANNEL_DEVICE_PATH_SUBTYPE	3
+
+struct grub_efi_fibre_channel_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint32_t reserved;
+  grub_efi_uint64_t wwn;
+  grub_efi_uint64_t lun;
+} GRUB_PACKED;
+typedef struct grub_efi_fibre_channel_device_path grub_efi_fibre_channel_device_path_t;
+
+#define GRUB_EFI_1394_DEVICE_PATH_SUBTYPE		4
+
+struct grub_efi_1394_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint32_t reserved;
+  grub_efi_uint64_t guid;
+} GRUB_PACKED;
+typedef struct grub_efi_1394_device_path grub_efi_1394_device_path_t;
+
+#define GRUB_EFI_USB_DEVICE_PATH_SUBTYPE		5
+
+struct grub_efi_usb_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint8_t parent_port_number;
+  grub_efi_uint8_t usb_interface;
+} GRUB_PACKED;
+typedef struct grub_efi_usb_device_path grub_efi_usb_device_path_t;
+
+#define GRUB_EFI_USB_CLASS_DEVICE_PATH_SUBTYPE		15
+
+struct grub_efi_usb_class_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint16_t vendor_id;
+  grub_efi_uint16_t product_id;
+  grub_efi_uint8_t device_class;
+  grub_efi_uint8_t device_subclass;
+  grub_efi_uint8_t device_protocol;
+} GRUB_PACKED;
+typedef struct grub_efi_usb_class_device_path grub_efi_usb_class_device_path_t;
+
+#define GRUB_EFI_I2O_DEVICE_PATH_SUBTYPE		6
+
+struct grub_efi_i2o_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint32_t tid;
+} GRUB_PACKED;
+typedef struct grub_efi_i2o_device_path grub_efi_i2o_device_path_t;
+
+#define GRUB_EFI_MAC_ADDRESS_DEVICE_PATH_SUBTYPE	11
+
+struct grub_efi_mac_address_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_mac_address_t mac_address;
+  grub_efi_uint8_t if_type;
+} GRUB_PACKED;
+typedef struct grub_efi_mac_address_device_path grub_efi_mac_address_device_path_t;
+
+#define GRUB_EFI_IPV4_DEVICE_PATH_SUBTYPE		12
+
+struct grub_efi_ipv4_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_ipv4_address_t local_ip_address;
+  grub_efi_ipv4_address_t remote_ip_address;
+  grub_efi_uint16_t local_port;
+  grub_efi_uint16_t remote_port;
+  grub_efi_uint16_t protocol;
+  grub_efi_uint8_t static_ip_address;
+} GRUB_PACKED;
+typedef struct grub_efi_ipv4_device_path grub_efi_ipv4_device_path_t;
+
+#define GRUB_EFI_IPV6_DEVICE_PATH_SUBTYPE		13
+
+struct grub_efi_ipv6_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_ipv6_address_t local_ip_address;
+  grub_efi_ipv6_address_t remote_ip_address;
+  grub_efi_uint16_t local_port;
+  grub_efi_uint16_t remote_port;
+  grub_efi_uint16_t protocol;
+  grub_efi_uint8_t static_ip_address;
+} GRUB_PACKED;
+typedef struct grub_efi_ipv6_device_path grub_efi_ipv6_device_path_t;
+
+#define GRUB_EFI_INFINIBAND_DEVICE_PATH_SUBTYPE		9
+
+struct grub_efi_infiniband_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint32_t resource_flags;
+  grub_efi_uint8_t port_gid[16];
+  grub_efi_uint64_t remote_id;
+  grub_efi_uint64_t target_port_id;
+  grub_efi_uint64_t device_id;
+} GRUB_PACKED;
+typedef struct grub_efi_infiniband_device_path grub_efi_infiniband_device_path_t;
+
+#define GRUB_EFI_UART_DEVICE_PATH_SUBTYPE		14
+
+struct grub_efi_uart_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint32_t reserved;
+  grub_efi_uint64_t baud_rate;
+  grub_efi_uint8_t data_bits;
+  grub_efi_uint8_t parity;
+  grub_efi_uint8_t stop_bits;
+} GRUB_PACKED;
+typedef struct grub_efi_uart_device_path grub_efi_uart_device_path_t;
+
+#define GRUB_EFI_SATA_DEVICE_PATH_SUBTYPE		18
+
+struct grub_efi_sata_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint16_t hba_port;
+  grub_efi_uint16_t multiplier_port;
+  grub_efi_uint16_t lun;
+} GRUB_PACKED;
+typedef struct grub_efi_sata_device_path grub_efi_sata_device_path_t;
+
+#define GRUB_EFI_VENDOR_MESSAGING_DEVICE_PATH_SUBTYPE	10
+
+/* Media Device Path.  */
+#define GRUB_EFI_MEDIA_DEVICE_PATH_TYPE			4
+
+#define GRUB_EFI_HARD_DRIVE_DEVICE_PATH_SUBTYPE		1
+
+struct grub_efi_hard_drive_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint32_t partition_number;
+  grub_efi_lba_t partition_start;
+  grub_efi_lba_t partition_size;
+  grub_efi_uint8_t partition_signature[16];
+  grub_efi_uint8_t partmap_type;
+  grub_efi_uint8_t signature_type;
+} GRUB_PACKED;
+typedef struct grub_efi_hard_drive_device_path grub_efi_hard_drive_device_path_t;
+
+#define GRUB_EFI_CDROM_DEVICE_PATH_SUBTYPE		2
+
+struct grub_efi_cdrom_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint32_t boot_entry;
+  grub_efi_lba_t partition_start;
+  grub_efi_lba_t partition_size;
+} GRUB_PACKED;
+typedef struct grub_efi_cdrom_device_path grub_efi_cdrom_device_path_t;
+
+#define GRUB_EFI_VENDOR_MEDIA_DEVICE_PATH_SUBTYPE	3
+
+struct grub_efi_vendor_media_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_packed_guid_t vendor_guid;
+  grub_efi_uint8_t vendor_defined_data[0];
+} GRUB_PACKED;
+typedef struct grub_efi_vendor_media_device_path grub_efi_vendor_media_device_path_t;
+
+#define GRUB_EFI_FILE_PATH_DEVICE_PATH_SUBTYPE		4
+
+struct grub_efi_file_path_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_char16_t path_name[0];
+} GRUB_PACKED;
+typedef struct grub_efi_file_path_device_path grub_efi_file_path_device_path_t;
+
+#define GRUB_EFI_PROTOCOL_DEVICE_PATH_SUBTYPE		5
+
+struct grub_efi_protocol_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_packed_guid_t guid;
+} GRUB_PACKED;
+typedef struct grub_efi_protocol_device_path grub_efi_protocol_device_path_t;
+
+#define GRUB_EFI_PIWG_DEVICE_PATH_SUBTYPE		6
+
+struct grub_efi_piwg_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_packed_guid_t guid;
+} GRUB_PACKED;
+typedef struct grub_efi_piwg_device_path grub_efi_piwg_device_path_t;
+
+
+/* BIOS Boot Specification Device Path.  */
+#define GRUB_EFI_BIOS_DEVICE_PATH_TYPE			5
+
+#define GRUB_EFI_BIOS_DEVICE_PATH_SUBTYPE		1
+
+struct grub_efi_bios_device_path
+{
+  grub_efi_device_path_t header;
+  grub_efi_uint16_t device_type;
+  grub_efi_uint16_t status_flags;
+  char description[0];
+} GRUB_PACKED;
+typedef struct grub_efi_bios_device_path grub_efi_bios_device_path_t;
+
+struct grub_efi_open_protocol_information_entry
+{
+  grub_efi_handle_t agent_handle;
+  grub_efi_handle_t controller_handle;
+  grub_efi_uint32_t attributes;
+  grub_efi_uint32_t open_count;
+};
+typedef struct grub_efi_open_protocol_information_entry grub_efi_open_protocol_information_entry_t;
+
+struct grub_efi_time
+{
+  grub_efi_uint16_t year;
+  grub_efi_uint8_t month;
+  grub_efi_uint8_t day;
+  grub_efi_uint8_t hour;
+  grub_efi_uint8_t minute;
+  grub_efi_uint8_t second;
+  grub_efi_uint8_t pad1;
+  grub_efi_uint32_t nanosecond;
+  grub_efi_int16_t time_zone;
+  grub_efi_uint8_t daylight;
+  grub_efi_uint8_t pad2;
+} GRUB_PACKED;
+typedef struct grub_efi_time grub_efi_time_t;
+
+struct grub_efi_time_capabilities
+{
+  grub_efi_uint32_t resolution;
+  grub_efi_uint32_t accuracy;
+  grub_efi_boolean_t sets_to_zero;
+};
+typedef struct grub_efi_time_capabilities grub_efi_time_capabilities_t;
+
+struct grub_efi_input_key
+{
+  grub_efi_uint16_t scan_code;
+  grub_efi_char16_t unicode_char;
+};
+typedef struct grub_efi_input_key grub_efi_input_key_t;
+
+typedef grub_efi_uint8_t grub_efi_key_toggle_state_t;
+struct grub_efi_key_state
+{
+	grub_efi_uint32_t key_shift_state;
+	grub_efi_key_toggle_state_t key_toggle_state;
+};
+typedef struct grub_efi_key_state grub_efi_key_state_t;
+
+#define GRUB_EFI_SHIFT_STATE_VALID     0x80000000
+#define GRUB_EFI_RIGHT_SHIFT_PRESSED   0x00000001
+#define GRUB_EFI_LEFT_SHIFT_PRESSED    0x00000002
+#define GRUB_EFI_RIGHT_CONTROL_PRESSED 0x00000004
+#define GRUB_EFI_LEFT_CONTROL_PRESSED  0x00000008
+#define GRUB_EFI_RIGHT_ALT_PRESSED     0x00000010
+#define GRUB_EFI_LEFT_ALT_PRESSED      0x00000020
+#define GRUB_EFI_RIGHT_LOGO_PRESSED    0x00000040
+#define GRUB_EFI_LEFT_LOGO_PRESSED     0x00000080
+#define GRUB_EFI_MENU_KEY_PRESSED      0x00000100
+#define GRUB_EFI_SYS_REQ_PRESSED       0x00000200
+
+#define GRUB_EFI_TOGGLE_STATE_VALID 0x80
+#define GRUB_EFI_KEY_STATE_EXPOSED  0x40
+#define GRUB_EFI_SCROLL_LOCK_ACTIVE 0x01
+#define GRUB_EFI_NUM_LOCK_ACTIVE    0x02
+#define GRUB_EFI_CAPS_LOCK_ACTIVE   0x04
+
+struct grub_efi_simple_text_output_mode
+{
+  grub_efi_int32_t max_mode;
+  grub_efi_int32_t mode;
+  grub_efi_int32_t attribute;
+  grub_efi_int32_t cursor_column;
+  grub_efi_int32_t cursor_row;
+  grub_efi_boolean_t cursor_visible;
+};
+typedef struct grub_efi_simple_text_output_mode grub_efi_simple_text_output_mode_t;
+
+/* Tables.  */
+struct grub_efi_table_header
+{
+  grub_efi_uint64_t signature;
+  grub_efi_uint32_t revision;
+  grub_efi_uint32_t header_size;
+  grub_efi_uint32_t crc32;
+  grub_efi_uint32_t reserved;
+};
+typedef struct grub_efi_table_header grub_efi_table_header_t;
+
+struct grub_efi_boot_services
+{
+  grub_efi_table_header_t hdr;
+
+  grub_efi_tpl_t
+  (*raise_tpl) (grub_efi_tpl_t new_tpl);
+
+  void
+  (*restore_tpl) (grub_efi_tpl_t old_tpl);
+
+  grub_efi_status_t
+  (*allocate_pages) (grub_efi_allocate_type_t type,
+		     grub_efi_memory_type_t memory_type,
+		     grub_efi_uintn_t pages,
+		     grub_efi_physical_address_t *memory);
+
+  grub_efi_status_t
+  (*free_pages) (grub_efi_physical_address_t memory,
+		 grub_efi_uintn_t pages);
+
+  grub_efi_status_t
+  (*get_memory_map) (grub_efi_uintn_t *memory_map_size,
+		     grub_efi_memory_descriptor_t *memory_map,
+		     grub_efi_uintn_t *map_key,
+		     grub_efi_uintn_t *descriptor_size,
+		     grub_efi_uint32_t *descriptor_version);
+
+  grub_efi_status_t
+  (*allocate_pool) (grub_efi_memory_type_t pool_type,
+		    grub_efi_uintn_t size,
+		    void **buffer);
+
+  grub_efi_status_t
+  (*free_pool) (void *buffer);
+
+  grub_efi_status_t
+  (*create_event) (grub_efi_uint32_t type,
+		   grub_efi_tpl_t notify_tpl,
+		   void (*notify_function) (grub_efi_event_t event,
+					    void *context),
+		   void *notify_context,
+		   grub_efi_event_t *event);
+
+  grub_efi_status_t
+  (*set_timer) (grub_efi_event_t event,
+		grub_efi_timer_delay_t type,
+		grub_efi_uint64_t trigger_time);
+
+   grub_efi_status_t
+   (*wait_for_event) (grub_efi_uintn_t num_events,
+		      grub_efi_event_t *event,
+		      grub_efi_uintn_t *index);
+
+  grub_efi_status_t
+  (*signal_event) (grub_efi_event_t event);
+
+  grub_efi_status_t
+  (*close_event) (grub_efi_event_t event);
+
+  grub_efi_status_t
+  (*check_event) (grub_efi_event_t event);
+
+   grub_efi_status_t
+   (*install_protocol_interface) (grub_efi_handle_t *handle,
+				  grub_efi_guid_t *protocol,
+				  grub_efi_interface_type_t protocol_interface_type,
+				  void *protocol_interface);
+
+  grub_efi_status_t
+  (*reinstall_protocol_interface) (grub_efi_handle_t handle,
+				   grub_efi_guid_t *protocol,
+				   void *old_interface,
+				   void *new_interface);
+
+  grub_efi_status_t
+  (*uninstall_protocol_interface) (grub_efi_handle_t handle,
+				   grub_efi_guid_t *protocol,
+				   void *protocol_interface);
+
+  grub_efi_status_t
+  (*handle_protocol) (grub_efi_handle_t handle,
+		      grub_efi_guid_t *protocol,
+		      void **protocol_interface);
+
+  void *reserved;
+
+  grub_efi_status_t
+  (*register_protocol_notify) (grub_efi_guid_t *protocol,
+			       grub_efi_event_t event,
+			       void **registration);
+
+  grub_efi_status_t
+  (*locate_handle) (grub_efi_locate_search_type_t search_type,
+		    grub_efi_guid_t *protocol,
+		    void *search_key,
+		    grub_efi_uintn_t *buffer_size,
+		    grub_efi_handle_t *buffer);
+
+  grub_efi_status_t
+  (*locate_device_path) (grub_efi_guid_t *protocol,
+			 grub_efi_device_path_t **device_path,
+			 grub_efi_handle_t *device);
+
+  grub_efi_status_t
+  (*install_configuration_table) (grub_efi_guid_t *guid, void *table);
+
+  grub_efi_status_t
+  (*load_image) (grub_efi_boolean_t boot_policy,
+		 grub_efi_handle_t parent_image_handle,
+		 grub_efi_device_path_t *file_path,
+		 void *source_buffer,
+		 grub_efi_uintn_t source_size,
+		 grub_efi_handle_t *image_handle);
+
+  grub_efi_status_t
+  (*start_image) (grub_efi_handle_t image_handle,
+		  grub_efi_uintn_t *exit_data_size,
+		  grub_efi_char16_t **exit_data);
+
+  grub_efi_status_t
+  (*exit) (grub_efi_handle_t image_handle,
+	   grub_efi_status_t exit_status,
+	   grub_efi_uintn_t exit_data_size,
+	   grub_efi_char16_t *exit_data) __attribute__((noreturn));
+
+  grub_efi_status_t
+  (*unload_image) (grub_efi_handle_t image_handle);
+
+  grub_efi_status_t
+  (*exit_boot_services) (grub_efi_handle_t image_handle,
+			 grub_efi_uintn_t map_key);
+
+  grub_efi_status_t
+  (*get_next_monotonic_count) (grub_efi_uint64_t *count);
+
+  grub_efi_status_t
+  (*stall) (grub_efi_uintn_t microseconds);
+
+  grub_efi_status_t
+  (*set_watchdog_timer) (grub_efi_uintn_t timeout,
+			 grub_efi_uint64_t watchdog_code,
+			 grub_efi_uintn_t data_size,
+			 grub_efi_char16_t *watchdog_data);
+
+  grub_efi_status_t
+  (*connect_controller) (grub_efi_handle_t controller_handle,
+			 grub_efi_handle_t *driver_image_handle,
+			 grub_efi_device_path_protocol_t *remaining_device_path,
+			 grub_efi_boolean_t recursive);
+
+  grub_efi_status_t
+  (*disconnect_controller) (grub_efi_handle_t controller_handle,
+			    grub_efi_handle_t driver_image_handle,
+			    grub_efi_handle_t child_handle);
+
+  grub_efi_status_t
+  (*open_protocol) (grub_efi_handle_t handle,
+		    grub_efi_guid_t *protocol,
+		    void **protocol_interface,
+		    grub_efi_handle_t agent_handle,
+		    grub_efi_handle_t controller_handle,
+		    grub_efi_uint32_t attributes);
+
+  grub_efi_status_t
+  (*close_protocol) (grub_efi_handle_t handle,
+		     grub_efi_guid_t *protocol,
+		     grub_efi_handle_t agent_handle,
+		     grub_efi_handle_t controller_handle);
+
+  grub_efi_status_t
+  (*open_protocol_information) (grub_efi_handle_t handle,
+				grub_efi_guid_t *protocol,
+				grub_efi_open_protocol_information_entry_t **entry_buffer,
+				grub_efi_uintn_t *entry_count);
+
+  grub_efi_status_t
+  (*protocols_per_handle) (grub_efi_handle_t handle,
+			   grub_efi_packed_guid_t ***protocol_buffer,
+			   grub_efi_uintn_t *protocol_buffer_count);
+
+  grub_efi_status_t
+  (*locate_handle_buffer) (grub_efi_locate_search_type_t search_type,
+			   grub_efi_guid_t *protocol,
+			   void *search_key,
+			   grub_efi_uintn_t *no_handles,
+			   grub_efi_handle_t **buffer);
+
+  grub_efi_status_t
+  (*locate_protocol) (grub_efi_guid_t *protocol,
+		      void *registration,
+		      void **protocol_interface);
+
+  grub_efi_status_t
+  (*install_multiple_protocol_interfaces) (grub_efi_handle_t *handle, ...);
+
+  grub_efi_status_t
+  (*uninstall_multiple_protocol_interfaces) (grub_efi_handle_t handle, ...);
+
+  grub_efi_status_t
+  (*calculate_crc32) (void *data,
+		      grub_efi_uintn_t data_size,
+		      grub_efi_uint32_t *crc32);
+
+  void
+  (*copy_mem) (void *destination, void *source, grub_efi_uintn_t length);
+
+  void
+  (*set_mem) (void *buffer, grub_efi_uintn_t size, grub_efi_uint8_t value);
+};
+typedef struct grub_efi_boot_services grub_efi_boot_services_t;
+
+struct grub_efi_runtime_services
+{
+  grub_efi_table_header_t hdr;
+
+  grub_efi_status_t
+  (*get_time) (grub_efi_time_t *time,
+	       grub_efi_time_capabilities_t *capabilities);
+
+  grub_efi_status_t
+  (*set_time) (grub_efi_time_t *time);
+
+  grub_efi_status_t
+  (*get_wakeup_time) (grub_efi_boolean_t *enabled,
+		      grub_efi_boolean_t *pending,
+		      grub_efi_time_t *time);
+
+  grub_efi_status_t
+  (*set_wakeup_time) (grub_efi_boolean_t enabled,
+		      grub_efi_time_t *time);
+
+  grub_efi_status_t
+  (*set_virtual_address_map) (grub_efi_uintn_t memory_map_size,
+			      grub_efi_uintn_t descriptor_size,
+			      grub_efi_uint32_t descriptor_version,
+			      grub_efi_memory_descriptor_t *virtual_map);
+
+  grub_efi_status_t
+  (*convert_pointer) (grub_efi_uintn_t debug_disposition, void **address);
+
+#define GRUB_EFI_GLOBAL_VARIABLE_GUID \
+  { 0x8BE4DF61, 0x93CA, 0x11d2, { 0xAA, 0x0D, 0x00, 0xE0, 0x98, 0x03, 0x2B,0x8C }}
+
+
+  grub_efi_status_t
+  (*get_variable) (grub_efi_char16_t *variable_name,
+		   const grub_efi_guid_t *vendor_guid,
+		   grub_efi_uint32_t *attributes,
+		   grub_efi_uintn_t *data_size,
+		   void *data);
+
+  grub_efi_status_t
+  (*get_next_variable_name) (grub_efi_uintn_t *variable_name_size,
+			     grub_efi_char16_t *variable_name,
+			     grub_efi_guid_t *vendor_guid);
+
+  grub_efi_status_t
+  (*set_variable) (grub_efi_char16_t *variable_name,
+		   const grub_efi_guid_t *vendor_guid,
+		   grub_efi_uint32_t attributes,
+		   grub_efi_uintn_t data_size,
+		   void *data);
+
+  grub_efi_status_t
+  (*get_next_high_monotonic_count) (grub_efi_uint32_t *high_count);
+
+  void
+  (*reset_system) (grub_efi_reset_type_t reset_type,
+		   grub_efi_status_t reset_status,
+		   grub_efi_uintn_t data_size,
+		   grub_efi_char16_t *reset_data);
+};
+typedef struct grub_efi_runtime_services grub_efi_runtime_services_t;
+
+struct grub_efi_configuration_table
+{
+  grub_efi_packed_guid_t vendor_guid;
+  void *vendor_table;
+} GRUB_PACKED;
+typedef struct grub_efi_configuration_table grub_efi_configuration_table_t;
+
+#define GRUB_EFIEMU_SYSTEM_TABLE_SIGNATURE 0x5453595320494249LL
+#define GRUB_EFIEMU_RUNTIME_SERVICES_SIGNATURE 0x56524553544e5552LL
+
+struct grub_efi_serial_io_interface
+{
+  grub_efi_uint32_t revision;
+  void (*reset) (void);
+  grub_efi_status_t (*set_attributes) (struct grub_efi_serial_io_interface *this,
+				       grub_efi_uint64_t speed,
+				       grub_efi_uint32_t fifo_depth,
+				       grub_efi_uint32_t timeout,
+				       grub_efi_parity_type_t parity,
+				       grub_uint8_t word_len,
+				       grub_efi_stop_bits_t stop_bits);
+  grub_efi_status_t (*set_control_bits) (struct grub_efi_serial_io_interface *this,
+					 grub_efi_uint32_t flags);
+  void (*get_control_bits) (void);
+  grub_efi_status_t (*write) (struct grub_efi_serial_io_interface *this,
+			      grub_efi_uintn_t *buf_size,
+			      void *buffer);
+  grub_efi_status_t (*read) (struct grub_efi_serial_io_interface *this,
+			     grub_efi_uintn_t *buf_size,
+			     void *buffer);
+};
+
+struct grub_efi_simple_input_interface
+{
+  grub_efi_status_t
+  (*reset) (struct grub_efi_simple_input_interface *this,
+	    grub_efi_boolean_t extended_verification);
+
+  grub_efi_status_t
+  (*read_key_stroke) (struct grub_efi_simple_input_interface *this,
+		      grub_efi_input_key_t *key);
+
+  grub_efi_event_t wait_for_key;
+};
+typedef struct grub_efi_simple_input_interface grub_efi_simple_input_interface_t;
+
+struct grub_efi_key_data {
+	grub_efi_input_key_t key;
+	grub_efi_key_state_t key_state;
+};
+typedef struct grub_efi_key_data grub_efi_key_data_t;
+
+typedef grub_efi_status_t (*grub_efi_key_notify_function_t) (
+	grub_efi_key_data_t *key_data
+	);
+
+struct grub_efi_simple_text_input_ex_interface
+{
+	grub_efi_status_t
+	(*reset) (struct grub_efi_simple_text_input_ex_interface *this,
+		  grub_efi_boolean_t extended_verification);
+
+	grub_efi_status_t
+	(*read_key_stroke) (struct grub_efi_simple_text_input_ex_interface *this,
+			    grub_efi_key_data_t *key_data);
+
+	grub_efi_event_t wait_for_key;
+
+	grub_efi_status_t
+	(*set_state) (struct grub_efi_simple_text_input_ex_interface *this,
+		      grub_efi_key_toggle_state_t *key_toggle_state);
+
+	grub_efi_status_t
+	(*register_key_notify) (struct grub_efi_simple_text_input_ex_interface *this,
+				grub_efi_key_data_t *key_data,
+				grub_efi_key_notify_function_t key_notification_function);
+
+	grub_efi_status_t
+	(*unregister_key_notify) (struct grub_efi_simple_text_input_ex_interface *this,
+				  void *notification_handle);
+};
+typedef struct grub_efi_simple_text_input_ex_interface grub_efi_simple_text_input_ex_interface_t;
+
+struct grub_efi_simple_text_output_interface
+{
+  grub_efi_status_t
+  (*reset) (struct grub_efi_simple_text_output_interface *this,
+	    grub_efi_boolean_t extended_verification);
+
+  grub_efi_status_t
+  (*output_string) (struct grub_efi_simple_text_output_interface *this,
+		    grub_efi_char16_t *string);
+
+  grub_efi_status_t
+  (*test_string) (struct grub_efi_simple_text_output_interface *this,
+		  grub_efi_char16_t *string);
+
+  grub_efi_status_t
+  (*query_mode) (struct grub_efi_simple_text_output_interface *this,
+		 grub_efi_uintn_t mode_number,
+		 grub_efi_uintn_t *columns,
+		 grub_efi_uintn_t *rows);
+
+  grub_efi_status_t
+  (*set_mode) (struct grub_efi_simple_text_output_interface *this,
+	       grub_efi_uintn_t mode_number);
+
+  grub_efi_status_t
+  (*set_attributes) (struct grub_efi_simple_text_output_interface *this,
+		     grub_efi_uintn_t attribute);
+
+  grub_efi_status_t
+  (*clear_screen) (struct grub_efi_simple_text_output_interface *this);
+
+  grub_efi_status_t
+  (*set_cursor_position) (struct grub_efi_simple_text_output_interface *this,
+			  grub_efi_uintn_t column,
+			  grub_efi_uintn_t row);
+
+  grub_efi_status_t
+  (*enable_cursor) (struct grub_efi_simple_text_output_interface *this,
+		    grub_efi_boolean_t visible);
+
+  grub_efi_simple_text_output_mode_t *mode;
+};
+typedef struct grub_efi_simple_text_output_interface grub_efi_simple_text_output_interface_t;
+
+typedef grub_uint8_t grub_efi_pxe_packet_t[1472];
+
+typedef struct grub_efi_pxe_mode
+{
+  grub_uint8_t unused[52];
+  grub_efi_pxe_packet_t dhcp_discover;
+  grub_efi_pxe_packet_t dhcp_ack;
+  grub_efi_pxe_packet_t proxy_offer;
+  grub_efi_pxe_packet_t pxe_discover;
+  grub_efi_pxe_packet_t pxe_reply;
+} grub_efi_pxe_mode_t;
+
+typedef struct grub_efi_pxe
+{
+  grub_uint64_t rev;
+  void (*start) (void);
+  void (*stop) (void);
+  void (*dhcp) (void);
+  void (*discover) (void);
+  void (*mftp) (void);
+  void (*udpwrite) (void);
+  void (*udpread) (void);
+  void (*setipfilter) (void);
+  void (*arp) (void);
+  void (*setparams) (void);
+  void (*setstationip) (void);
+  void (*setpackets) (void);
+  struct grub_efi_pxe_mode *mode;
+} grub_efi_pxe_t;
+
+#define GRUB_EFI_BLACK		0x00
+#define GRUB_EFI_BLUE		0x01
+#define GRUB_EFI_GREEN		0x02
+#define GRUB_EFI_CYAN		0x03
+#define GRUB_EFI_RED		0x04
+#define GRUB_EFI_MAGENTA	0x05
+#define GRUB_EFI_BROWN		0x06
+#define GRUB_EFI_LIGHTGRAY	0x07
+#define GRUB_EFI_BRIGHT		0x08
+#define GRUB_EFI_DARKGRAY	0x08
+#define GRUB_EFI_LIGHTBLUE	0x09
+#define GRUB_EFI_LIGHTGREEN	0x0A
+#define GRUB_EFI_LIGHTCYAN	0x0B
+#define GRUB_EFI_LIGHTRED	0x0C
+#define GRUB_EFI_LIGHTMAGENTA	0x0D
+#define GRUB_EFI_YELLOW		0x0E
+#define GRUB_EFI_WHITE		0x0F
+
+#define GRUB_EFI_BACKGROUND_BLACK	0x00
+#define GRUB_EFI_BACKGROUND_BLUE	0x10
+#define GRUB_EFI_BACKGROUND_GREEN	0x20
+#define GRUB_EFI_BACKGROUND_CYAN	0x30
+#define GRUB_EFI_BACKGROUND_RED		0x40
+#define GRUB_EFI_BACKGROUND_MAGENTA	0x50
+#define GRUB_EFI_BACKGROUND_BROWN	0x60
+#define GRUB_EFI_BACKGROUND_LIGHTGRAY	0x70
+
+#define GRUB_EFI_TEXT_ATTR(fg, bg)	((fg) | ((bg)))
+
+struct grub_efi_system_table
+{
+  grub_efi_table_header_t hdr;
+  grub_efi_char16_t *firmware_vendor;
+  grub_efi_uint32_t firmware_revision;
+  grub_efi_handle_t console_in_handler;
+  grub_efi_simple_input_interface_t *con_in;
+  grub_efi_handle_t console_out_handler;
+  grub_efi_simple_text_output_interface_t *con_out;
+  grub_efi_handle_t standard_error_handle;
+  grub_efi_simple_text_output_interface_t *std_err;
+  grub_efi_runtime_services_t *runtime_services;
+  grub_efi_boot_services_t *boot_services;
+  grub_efi_uintn_t num_table_entries;
+  grub_efi_configuration_table_t *configuration_table;
+};
+typedef struct grub_efi_system_table  grub_efi_system_table_t;
+
+struct grub_efi_loaded_image
+{
+  grub_efi_uint32_t revision;
+  grub_efi_handle_t parent_handle;
+  grub_efi_system_table_t *system_table;
+
+  grub_efi_handle_t device_handle;
+  grub_efi_device_path_t *file_path;
+  void *reserved;
+
+  grub_efi_uint32_t load_options_size;
+  void *load_options;
+
+  void *image_base;
+  grub_efi_uint64_t image_size;
+  grub_efi_memory_type_t image_code_type;
+  grub_efi_memory_type_t image_data_type;
+
+  grub_efi_status_t (*unload) (grub_efi_handle_t image_handle);
+};
+typedef struct grub_efi_loaded_image grub_efi_loaded_image_t;
+
+struct grub_efi_disk_io
+{
+  grub_efi_uint64_t revision;
+  grub_efi_status_t (*read) (struct grub_efi_disk_io *this,
+			     grub_efi_uint32_t media_id,
+			     grub_efi_uint64_t offset,
+			     grub_efi_uintn_t buffer_size,
+			     void *buffer);
+  grub_efi_status_t (*write) (struct grub_efi_disk_io *this,
+			     grub_efi_uint32_t media_id,
+			     grub_efi_uint64_t offset,
+			     grub_efi_uintn_t buffer_size,
+			     void *buffer);
+};
+typedef struct grub_efi_disk_io grub_efi_disk_io_t;
+
+struct grub_efi_block_io_media
+{
+  grub_efi_uint32_t media_id;
+  grub_efi_boolean_t removable_media;
+  grub_efi_boolean_t media_present;
+  grub_efi_boolean_t logical_partition;
+  grub_efi_boolean_t read_only;
+  grub_efi_boolean_t write_caching;
+  grub_efi_uint8_t pad[3];
+  grub_efi_uint32_t block_size;
+  grub_efi_uint32_t io_align;
+  grub_efi_uint8_t pad2[4];
+  grub_efi_lba_t last_block;
+};
+typedef struct grub_efi_block_io_media grub_efi_block_io_media_t;
+
+typedef grub_uint8_t grub_efi_mac_t[32];
+
+struct grub_efi_simple_network_mode
+{
+  grub_uint32_t state;
+  grub_uint32_t hwaddr_size;
+  grub_uint32_t media_header_size;
+  grub_uint32_t max_packet_size;
+  grub_uint32_t nvram_size;
+  grub_uint32_t nvram_access_size;
+  grub_uint32_t receive_filter_mask;
+  grub_uint32_t receive_filter_setting;
+  grub_uint32_t max_mcast_filter_count;
+  grub_uint32_t mcast_filter_count;
+  grub_efi_mac_t mcast_filter[16];
+  grub_efi_mac_t current_address;
+  grub_efi_mac_t broadcast_address;
+  grub_efi_mac_t permanent_address;
+  grub_uint8_t if_type;
+  grub_uint8_t mac_changeable;
+  grub_uint8_t multitx_supported;
+  grub_uint8_t media_present_supported;
+  grub_uint8_t media_present;
+};
+
+enum
+  {
+    GRUB_EFI_NETWORK_STOPPED,
+    GRUB_EFI_NETWORK_STARTED,
+    GRUB_EFI_NETWORK_INITIALIZED,
+  };
+
+enum
+  {
+    GRUB_EFI_SIMPLE_NETWORK_RECEIVE_UNICAST		  = 0x01,
+    GRUB_EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST		  = 0x02,
+    GRUB_EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST		  = 0x04,
+    GRUB_EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS		  = 0x08,
+    GRUB_EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST = 0x10,
+  };
+
+struct grub_efi_simple_network
+{
+  grub_uint64_t revision;
+  grub_efi_status_t (*start) (struct grub_efi_simple_network *this);
+  grub_efi_status_t (*stop) (struct grub_efi_simple_network *this);
+  grub_efi_status_t (*initialize) (struct grub_efi_simple_network *this,
+				   grub_efi_uintn_t extra_rx,
+				   grub_efi_uintn_t extra_tx);
+  void (*reset) (void);
+  grub_efi_status_t (*shutdown) (struct grub_efi_simple_network *this);
+  grub_efi_status_t (*receive_filters) (struct grub_efi_simple_network *this,
+					grub_uint32_t enable,
+					grub_uint32_t disable,
+					grub_efi_boolean_t reset_mcast_filter,
+					grub_efi_uintn_t mcast_filter_count,
+					grub_efi_mac_address_t *mcast_filter);
+  void (*station_address) (void);
+  void (*statistics) (void);
+  void (*mcastiptomac) (void);
+  void (*nvdata) (void);
+  grub_efi_status_t (*get_status) (struct grub_efi_simple_network *this,
+				   grub_uint32_t *int_status,
+				   void **txbuf);
+  grub_efi_status_t (*transmit) (struct grub_efi_simple_network *this,
+				 grub_efi_uintn_t header_size,
+				 grub_efi_uintn_t buffer_size,
+				 void *buffer,
+				 grub_efi_mac_t *src_addr,
+				 grub_efi_mac_t *dest_addr,
+				 grub_efi_uint16_t *protocol);
+  grub_efi_status_t (*receive) (struct grub_efi_simple_network *this,
+				grub_efi_uintn_t *header_size,
+				grub_efi_uintn_t *buffer_size,
+				void *buffer,
+				grub_efi_mac_t *src_addr,
+				grub_efi_mac_t *dest_addr,
+				grub_uint16_t *protocol);
+  void (*waitforpacket) (void);
+  struct grub_efi_simple_network_mode *mode;
+};
+typedef struct grub_efi_simple_network grub_efi_simple_network_t;
+
+
+struct grub_efi_block_io
+{
+  grub_efi_uint64_t revision;
+  grub_efi_block_io_media_t *media;
+  grub_efi_status_t (*reset) (struct grub_efi_block_io *this,
+			      grub_efi_boolean_t extended_verification);
+  grub_efi_status_t (*read_blocks) (struct grub_efi_block_io *this,
+				    grub_efi_uint32_t media_id,
+				    grub_efi_lba_t lba,
+				    grub_efi_uintn_t buffer_size,
+				    void *buffer);
+  grub_efi_status_t (*write_blocks) (struct grub_efi_block_io *this,
+				     grub_efi_uint32_t media_id,
+				     grub_efi_lba_t lba,
+				     grub_efi_uintn_t buffer_size,
+				     void *buffer);
+  grub_efi_status_t (*flush_blocks) (struct grub_efi_block_io *this);
+};
+typedef struct grub_efi_block_io grub_efi_block_io_t;
+
+#if (GRUB_TARGET_SIZEOF_VOID_P == 4) || defined (__ia64__) \
+  || defined (__aarch64__) || defined(__mips__) || defined (__MINGW64__) || defined (__CYGWIN__) \
+  || defined(__riscv)
+
+#define efi_call_0(func)		func()
+#define efi_call_1(func, a)		func(a)
+#define efi_call_2(func, a, b)		func(a, b)
+#define efi_call_3(func, a, b, c)	func(a, b, c)
+#define efi_call_4(func, a, b, c, d)	func(a, b, c, d)
+#define efi_call_5(func, a, b, c, d, e)	func(a, b, c, d, e)
+#define efi_call_6(func, a, b, c, d, e, f) func(a, b, c, d, e, f)
+#define efi_call_7(func, a, b, c, d, e, f, g) func(a, b, c, d, e, f, g)
+#define efi_call_10(func, a, b, c, d, e, f, g, h, i, j)	func(a, b, c, d, e, f, g, h, i, j)
+
+#else
+
+#define efi_call_0(func) \
+  efi_wrap_0(func)
+#define efi_call_1(func, a) \
+  efi_wrap_1(func, (grub_uint64_t) (a))
+#define efi_call_2(func, a, b) \
+  efi_wrap_2(func, (grub_uint64_t) (a), (grub_uint64_t) (b))
+#define efi_call_3(func, a, b, c) \
+  efi_wrap_3(func, (grub_uint64_t) (a), (grub_uint64_t) (b), \
+	     (grub_uint64_t) (c))
+#define efi_call_4(func, a, b, c, d) \
+  efi_wrap_4(func, (grub_uint64_t) (a), (grub_uint64_t) (b), \
+	     (grub_uint64_t) (c), (grub_uint64_t) (d))
+#define efi_call_5(func, a, b, c, d, e)	\
+  efi_wrap_5(func, (grub_uint64_t) (a), (grub_uint64_t) (b), \
+	     (grub_uint64_t) (c), (grub_uint64_t) (d), (grub_uint64_t) (e))
+#define efi_call_6(func, a, b, c, d, e, f) \
+  efi_wrap_6(func, (grub_uint64_t) (a), (grub_uint64_t) (b), \
+	     (grub_uint64_t) (c), (grub_uint64_t) (d), (grub_uint64_t) (e), \
+	     (grub_uint64_t) (f))
+#define efi_call_7(func, a, b, c, d, e, f, g) \
+  efi_wrap_7(func, (grub_uint64_t) (a), (grub_uint64_t) (b), \
+	     (grub_uint64_t) (c), (grub_uint64_t) (d), (grub_uint64_t) (e), \
+	     (grub_uint64_t) (f), (grub_uint64_t) (g))
+#define efi_call_10(func, a, b, c, d, e, f, g, h, i, j) \
+  efi_wrap_10(func, (grub_uint64_t) (a), (grub_uint64_t) (b), \
+	      (grub_uint64_t) (c), (grub_uint64_t) (d), (grub_uint64_t) (e), \
+	      (grub_uint64_t) (f), (grub_uint64_t) (g),	(grub_uint64_t) (h), \
+	      (grub_uint64_t) (i), (grub_uint64_t) (j))
+
+grub_uint64_t EXPORT_FUNC(efi_wrap_0) (void *func);
+grub_uint64_t EXPORT_FUNC(efi_wrap_1) (void *func, grub_uint64_t arg1);
+grub_uint64_t EXPORT_FUNC(efi_wrap_2) (void *func, grub_uint64_t arg1,
+                                       grub_uint64_t arg2);
+grub_uint64_t EXPORT_FUNC(efi_wrap_3) (void *func, grub_uint64_t arg1,
+                                       grub_uint64_t arg2, grub_uint64_t arg3);
+grub_uint64_t EXPORT_FUNC(efi_wrap_4) (void *func, grub_uint64_t arg1,
+                                       grub_uint64_t arg2, grub_uint64_t arg3,
+                                       grub_uint64_t arg4);
+grub_uint64_t EXPORT_FUNC(efi_wrap_5) (void *func, grub_uint64_t arg1,
+                                       grub_uint64_t arg2, grub_uint64_t arg3,
+                                       grub_uint64_t arg4, grub_uint64_t arg5);
+grub_uint64_t EXPORT_FUNC(efi_wrap_6) (void *func, grub_uint64_t arg1,
+                                       grub_uint64_t arg2, grub_uint64_t arg3,
+                                       grub_uint64_t arg4, grub_uint64_t arg5,
+                                       grub_uint64_t arg6);
+grub_uint64_t EXPORT_FUNC(efi_wrap_7) (void *func, grub_uint64_t arg1,
+                                       grub_uint64_t arg2, grub_uint64_t arg3,
+                                       grub_uint64_t arg4, grub_uint64_t arg5,
+                                       grub_uint64_t arg6, grub_uint64_t arg7);
+grub_uint64_t EXPORT_FUNC(efi_wrap_10) (void *func, grub_uint64_t arg1,
+                                        grub_uint64_t arg2, grub_uint64_t arg3,
+                                        grub_uint64_t arg4, grub_uint64_t arg5,
+                                        grub_uint64_t arg6, grub_uint64_t arg7,
+                                        grub_uint64_t arg8, grub_uint64_t arg9,
+                                        grub_uint64_t arg10);
+#endif
+
+#endif /* ! GRUB_EFI_API_HEADER */

GRUB2/MOD_SRC/grub-2.04/include/grub/efi/pe32.h

+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2006,2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_EFI_PE32_HEADER
+#define GRUB_EFI_PE32_HEADER	1
+
+#include <grub/types.h>
+#include <grub/efi/memory.h>
+
+/* The MSDOS compatibility stub. This was copied from the output of
+   objcopy, and it is not necessary to care about what this means.  */
+#define GRUB_PE32_MSDOS_STUB \
+  { \
+    0x4d, 0x5a, 0x90, 0x00, 0x03, 0x00, 0x00, 0x00, \
+    0x04, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, \
+    0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+    0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+    0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, \
+    0x0e, 0x1f, 0xba, 0x0e, 0x00, 0xb4, 0x09, 0xcd, \
+    0x21, 0xb8, 0x01, 0x4c, 0xcd, 0x21, 0x54, 0x68, \
+    0x69, 0x73, 0x20, 0x70, 0x72, 0x6f, 0x67, 0x72, \
+    0x61, 0x6d, 0x20, 0x63, 0x61, 0x6e, 0x6e, 0x6f, \
+    0x74, 0x20, 0x62, 0x65, 0x20, 0x72, 0x75, 0x6e, \
+    0x20, 0x69, 0x6e, 0x20, 0x44, 0x4f, 0x53, 0x20, \
+    0x6d, 0x6f, 0x64, 0x65, 0x2e, 0x0d, 0x0d, 0x0a, \
+    0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00  \
+  }
+
+#define GRUB_PE32_MSDOS_STUB_SIZE	0x80
+
+#define GRUB_PE32_MAGIC			0x5a4d
+
+/* According to the spec, the minimal alignment is 512 bytes...
+   But some examples (such as EFI drivers in the Intel
+   Sample Implementation) use 32 bytes (0x20) instead, and it seems
+   to be working.
+
+   However, there is firmware showing up in the field now with
+   page alignment constraints to guarantee that page protection
+   bits take effect. Because currently existing GRUB code can not
+   properly distinguish between in-memory and in-file layout, let's
+   bump all alignment to GRUB_EFI_PAGE_SIZE. */
+#define GRUB_PE32_SECTION_ALIGNMENT	GRUB_EFI_PAGE_SIZE
+#define GRUB_PE32_FILE_ALIGNMENT	GRUB_PE32_SECTION_ALIGNMENT
+
+struct grub_pe32_coff_header
+{
+  grub_uint16_t machine;
+  grub_uint16_t num_sections;
+  grub_uint32_t time;
+  grub_uint32_t symtab_offset;
+  grub_uint32_t num_symbols;
+  grub_uint16_t optional_header_size;
+  grub_uint16_t characteristics;
+};
+
+#define GRUB_PE32_MACHINE_I386			0x14c
+#define GRUB_PE32_MACHINE_MIPS			0x166
+#define GRUB_PE32_MACHINE_IA64			0x200
+#define GRUB_PE32_MACHINE_X86_64		0x8664
+#define GRUB_PE32_MACHINE_ARMTHUMB_MIXED	0x01c2
+#define GRUB_PE32_MACHINE_ARM64			0xAA64
+#define GRUB_PE32_MACHINE_RISCV32		0x5032
+#define GRUB_PE32_MACHINE_RISCV64		0x5064
+
+#define GRUB_PE32_RELOCS_STRIPPED		0x0001
+#define GRUB_PE32_EXECUTABLE_IMAGE		0x0002
+#define GRUB_PE32_LINE_NUMS_STRIPPED		0x0004
+#define GRUB_PE32_LOCAL_SYMS_STRIPPED		0x0008
+#define GRUB_PE32_AGGRESSIVE_WS_TRIM		0x0010
+#define GRUB_PE32_LARGE_ADDRESS_AWARE		0x0020
+#define GRUB_PE32_16BIT_MACHINE			0x0040
+#define GRUB_PE32_BYTES_REVERSED_LO		0x0080
+#define GRUB_PE32_32BIT_MACHINE			0x0100
+#define GRUB_PE32_DEBUG_STRIPPED		0x0200
+#define GRUB_PE32_REMOVABLE_RUN_FROM_SWAP	0x0400
+#define GRUB_PE32_SYSTEM			0x1000
+#define GRUB_PE32_DLL				0x2000
+#define GRUB_PE32_UP_SYSTEM_ONLY		0x4000
+#define GRUB_PE32_BYTES_REVERSED_HI		0x8000
+
+struct grub_pe32_data_directory
+{
+  grub_uint32_t rva;
+  grub_uint32_t size;
+};
+
+struct grub_pe32_optional_header
+{
+  grub_uint16_t magic;
+  grub_uint8_t major_linker_version;
+  grub_uint8_t minor_linker_version;
+  grub_uint32_t code_size;
+  grub_uint32_t data_size;
+  grub_uint32_t bss_size;
+  grub_uint32_t entry_addr;
+  grub_uint32_t code_base;
+
+  grub_uint32_t data_base;
+  grub_uint32_t image_base;
+
+  grub_uint32_t section_alignment;
+  grub_uint32_t file_alignment;
+  grub_uint16_t major_os_version;
+  grub_uint16_t minor_os_version;
+  grub_uint16_t major_image_version;
+  grub_uint16_t minor_image_version;
+  grub_uint16_t major_subsystem_version;
+  grub_uint16_t minor_subsystem_version;
+  grub_uint32_t reserved;
+  grub_uint32_t image_size;
+  grub_uint32_t header_size;
+  grub_uint32_t checksum;
+  grub_uint16_t subsystem;
+  grub_uint16_t dll_characteristics;
+
+  grub_uint32_t stack_reserve_size;
+  grub_uint32_t stack_commit_size;
+  grub_uint32_t heap_reserve_size;
+  grub_uint32_t heap_commit_size;
+
+  grub_uint32_t loader_flags;
+  grub_uint32_t num_data_directories;
+
+  /* Data directories.  */
+  struct grub_pe32_data_directory export_table;
+  struct grub_pe32_data_directory import_table;
+  struct grub_pe32_data_directory resource_table;
+  struct grub_pe32_data_directory exception_table;
+  struct grub_pe32_data_directory certificate_table;
+  struct grub_pe32_data_directory base_relocation_table;
+  struct grub_pe32_data_directory debug;
+  struct grub_pe32_data_directory architecture;
+  struct grub_pe32_data_directory global_ptr;
+  struct grub_pe32_data_directory tls_table;
+  struct grub_pe32_data_directory load_config_table;
+  struct grub_pe32_data_directory bound_import;
+  struct grub_pe32_data_directory iat;
+  struct grub_pe32_data_directory delay_import_descriptor;
+  struct grub_pe32_data_directory com_runtime_header;
+  struct grub_pe32_data_directory reserved_entry;
+};
+
+struct grub_pe64_optional_header
+{
+  grub_uint16_t magic;
+  grub_uint8_t major_linker_version;
+  grub_uint8_t minor_linker_version;
+  grub_uint32_t code_size;
+  grub_uint32_t data_size;
+  grub_uint32_t bss_size;
+  grub_uint32_t entry_addr;
+  grub_uint32_t code_base;
+
+  grub_uint64_t image_base;
+
+  grub_uint32_t section_alignment;
+  grub_uint32_t file_alignment;
+  grub_uint16_t major_os_version;
+  grub_uint16_t minor_os_version;
+  grub_uint16_t major_image_version;
+  grub_uint16_t minor_image_version;
+  grub_uint16_t major_subsystem_version;
+  grub_uint16_t minor_subsystem_version;
+  grub_uint32_t reserved;
+  grub_uint32_t image_size;
+  grub_uint32_t header_size;
+  grub_uint32_t checksum;
+  grub_uint16_t subsystem;
+  grub_uint16_t dll_characteristics;
+
+  grub_uint64_t stack_reserve_size;
+  grub_uint64_t stack_commit_size;
+  grub_uint64_t heap_reserve_size;
+  grub_uint64_t heap_commit_size;
+
+  grub_uint32_t loader_flags;
+  grub_uint32_t num_data_directories;
+
+  /* Data directories.  */
+  struct grub_pe32_data_directory export_table;
+  struct grub_pe32_data_directory import_table;
+  struct grub_pe32_data_directory resource_table;
+  struct grub_pe32_data_directory exception_table;
+  struct grub_pe32_data_directory certificate_table;
+  struct grub_pe32_data_directory base_relocation_table;
+  struct grub_pe32_data_directory debug;
+  struct grub_pe32_data_directory architecture;
+  struct grub_pe32_data_directory global_ptr;
+  struct grub_pe32_data_directory tls_table;
+  struct grub_pe32_data_directory load_config_table;
+  struct grub_pe32_data_directory bound_import;
+  struct grub_pe32_data_directory iat;
+  struct grub_pe32_data_directory delay_import_descriptor;
+  struct grub_pe32_data_directory com_runtime_header;
+  struct grub_pe32_data_directory reserved_entry;
+};
+
+#define GRUB_PE32_PE32_MAGIC	0x10b
+#define GRUB_PE32_PE64_MAGIC	0x20b
+
+#define GRUB_PE32_SUBSYSTEM_EFI_APPLICATION	10
+
+#define GRUB_PE32_NUM_DATA_DIRECTORIES	16
+
+struct grub_pe32_section_table
+{
+  char name[8];
+  grub_uint32_t virtual_size;
+  grub_uint32_t virtual_address;
+  grub_uint32_t raw_data_size;
+  grub_uint32_t raw_data_offset;
+  grub_uint32_t relocations_offset;
+  grub_uint32_t line_numbers_offset;
+  grub_uint16_t num_relocations;
+  grub_uint16_t num_line_numbers;
+  grub_uint32_t characteristics;
+};
+
+#define GRUB_PE32_SCN_CNT_CODE			0x00000020
+#define GRUB_PE32_SCN_CNT_INITIALIZED_DATA	0x00000040
+#define GRUB_PE32_SCN_MEM_DISCARDABLE		0x02000000
+#define GRUB_PE32_SCN_MEM_EXECUTE		0x20000000
+#define GRUB_PE32_SCN_MEM_READ			0x40000000
+#define GRUB_PE32_SCN_MEM_WRITE			0x80000000
+
+#define GRUB_PE32_SCN_ALIGN_1BYTES		0x00100000
+#define GRUB_PE32_SCN_ALIGN_2BYTES		0x00200000
+#define GRUB_PE32_SCN_ALIGN_4BYTES		0x00300000
+#define GRUB_PE32_SCN_ALIGN_8BYTES		0x00400000
+#define GRUB_PE32_SCN_ALIGN_16BYTES		0x00500000
+#define GRUB_PE32_SCN_ALIGN_32BYTES		0x00600000
+#define GRUB_PE32_SCN_ALIGN_64BYTES		0x00700000
+
+#define GRUB_PE32_SCN_ALIGN_SHIFT		20
+#define GRUB_PE32_SCN_ALIGN_MASK		7
+
+#define GRUB_PE32_SIGNATURE_SIZE 4
+
+struct grub_pe32_header
+{
+  /* This should be filled in with GRUB_PE32_MSDOS_STUB.  */
+  grub_uint8_t msdos_stub[GRUB_PE32_MSDOS_STUB_SIZE];
+
+  /* This is always PE\0\0.  */
+  char signature[GRUB_PE32_SIGNATURE_SIZE];
+
+  /* The COFF file header.  */
+  struct grub_pe32_coff_header coff_header;
+
+#if GRUB_TARGET_SIZEOF_VOID_P == 8
+  /* The Optional header.  */
+  struct grub_pe64_optional_header optional_header;
+#else
+  /* The Optional header.  */
+  struct grub_pe32_optional_header optional_header;
+#endif
+};
+
+struct grub_pe32_fixup_block
+{
+  grub_uint32_t page_rva;
+  grub_uint32_t block_size;
+  grub_uint16_t entries[0];
+};
+
+#define GRUB_PE32_FIXUP_ENTRY(type, offset)	(((type) << 12) | (offset))
+
+#define GRUB_PE32_REL_BASED_ABSOLUTE	0
+#define GRUB_PE32_REL_BASED_HIGH	1
+#define GRUB_PE32_REL_BASED_LOW		2
+#define GRUB_PE32_REL_BASED_HIGHLOW	3
+#define GRUB_PE32_REL_BASED_HIGHADJ	4
+#define GRUB_PE32_REL_BASED_MIPS_JMPADDR 5
+#define GRUB_PE32_REL_BASED_MIPS_LOW    6
+#define GRUB_PE32_REL_BASED_MIPS_HIGH   4
+#define GRUB_PE32_REL_BASED_MIPS_HIGHER 7
+#define GRUB_PE32_REL_BASED_MIPS_HIGHEST 8
+#define GRUB_PE32_REL_BASED_ARM_MOV32A  5
+#define GRUB_PE32_REL_BASED_RISCV_HI20	5
+#define GRUB_PE32_REL_BASED_SECTION	6
+#define GRUB_PE32_REL_BASED_REL		7
+#define GRUB_PE32_REL_BASED_ARM_MOV32T  7
+#define GRUB_PE32_REL_BASED_RISCV_LOW12I 7
+#define GRUB_PE32_REL_BASED_RISCV_LOW12S 8
+#define GRUB_PE32_REL_BASED_IA64_IMM64	9
+#define GRUB_PE32_REL_BASED_DIR64	10
+#define GRUB_PE32_REL_BASED_HIGH3ADJ	11
+
+struct grub_pe32_symbol
+{
+  union
+  {
+    char short_name[8];
+    grub_uint32_t long_name[2];
+  };
+
+  grub_uint32_t value;
+  grub_uint16_t section;
+  grub_uint16_t type;
+  grub_uint8_t storage_class;
+  grub_uint8_t num_aux;
+} GRUB_PACKED;
+
+#define GRUB_PE32_SYM_CLASS_EXTERNAL	2
+#define GRUB_PE32_SYM_CLASS_STATIC	3
+#define GRUB_PE32_SYM_CLASS_FILE	0x67
+
+#define GRUB_PE32_DT_FUNCTION		0x20
+
+struct grub_pe32_reloc
+{
+  grub_uint32_t offset;
+  grub_uint32_t symtab_index;
+  grub_uint16_t type;
+} GRUB_PACKED;
+
+#define GRUB_PE32_REL_I386_DIR32	0x6
+#define GRUB_PE32_REL_I386_REL32	0x14
+
+#endif /* ! GRUB_EFI_PE32_HEADER */

GRUB2/MOD_SRC/grub-2.04/include/grub/mips64/asm.h

+#ifndef GRUB_MIPS64_ASM_HEADER
+#define GRUB_MIPS64_ASM_HEADER	1
+
+#define GRUB_ASM_T4 $a4
+#define GRUB_ASM_T5 $a5
+#define GRUB_ASM_SZREG 8
+#define GRUB_ASM_REG_S sd
+#define GRUB_ASM_REG_L ld
+
+#endif