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Starting with Python3.11, asyncio.wait() doesn't accept coroutines anymore. Instead, we have to wrap every coroutine in a tasks.

These all do the same thing except with different hosts or NICs. Combine them
in one script running all configurations.
- gem5_i40e_pair
- qemu_i40e_pair
- qemu_e1000_pair

Helps quickly determine available CPU features in host simulators.

Currently we invoke m5 checksum for gem5 but nothing at all for other
simulators. This just adds an echo "ready for checkpoint". We use this in
simics to generate a checkpoint, but it is also sane default for simulators not
supporting checkpoints, as at least the logs will show what's going on.

Previously the default was m5 exit with a special case for QEMU. Here we flip
this in anticipation of Simics support.

Instead of first converting to strings. Should reduce memory consumption when
dealing with large logs.

drastically speeds up simulation performance in the presence of a lot of output

This adds the physical memory region to the kernel memory manager in a second
(emulated) numa node.

Co-authored-by: Hejing Li <hajeongee@gmail.com>

Includes a new simulator type, and integration for host simulators to add
memory devices. Currently only implemented for gem5.
Co-authored-by: Hejing Li <hajeongee@gmail.com>

This uses somewhat more specific exception types instead of just Exception()
everywhere. Makes pylint happy.