x86_64: add an Asterinas boot profile for the qemu board#345
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Following dev's Cargo-features-to-Kconfig migration, aster_guest now lives in kconfig/Kconfig (x86-specific options) with a cfg_map.toml entry instead of a Cargo.toml feature. Updated aster-hv-ops (hv-asterctl, build-hvisor.sh) to flip it on by editing .config after "make defconfig" rather than passing FEATURES=... to make, since that argument was removed upstream.
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Adds an
aster_guesttoggle plus a whole CLI's worth of tooling around it,since this needed to actually be pleasant to build/run/debug rather than a
pile of ad-hoc shell commands.
board.rs/platform.mk: the toggle itself, selects the Asterinas bootconfig.
aster-hv-ops/:hv-asterctl, a Python CLI withbuild/run/verify/benchsubcommands, plus the shell scripts it wraps.work opened separately in this queue.
aster_guest.Depends on four separately-submitted fixes this feature actually needs to
work correctly: the multiboot2/module-relocation hardening, the MMIO
decoder rewrite, CPUID leaf 0x15, and the guest-interrupt-destination fix.
That's a lot of prerequisite PRs for one feature — happy to combine or
reorder however's easiest to review.
Ran
hv-asterctl verify --reuse-guestagainst a real QEMU/KVM boot: gotFUNCTIONAL VERIFICATION COMPLETE: PASSwith 39 distinct syscallsobserved, so this isn't just "the kernel prints a banner and hangs" — it's
actually running guest code that makes real syscalls. Build and format
checks clean.