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- change example experiment to pyexps/simple_ping.py
- quickstart.rst: remove repeated information already found in README
- README: add note that simbricks-run is only available in docker containers

- add `Error Opening images/output-base/base.raw`
- move `Getting Help` to the beginning and add content

this gets rid of the non-fatal build error 'No names found, cannot describe anything'

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.

Simply installs vanilla simics under sims/external/simics. Because of licensing
restrictions we cannot automatically download simics from the intel page.
Instead the makefile will prompt the user to download to files and add them to
the simics directory.

This commit does not include any simbricks integration at all yet.
Co-authored-by: Antoine Kaufmann <antoinek@mpi-sws.org>

This enables other environments (in other code bases) to use a different
definition or disable the checks. Came up in the context of Simics.
Co-authored-by: Antoine Kaufmann <antoinek@mpi-sws.org>

While we configure gem5 and qemu to directly load the kernel, simics will use a
proper EFI-based firmware for boot.

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.