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feat(cpuid): automate the passthrough toggle around enabled guests

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Sandwich
2026-09-06 02:46:30 +02:00
parent c1e8676834
commit 52b18427f2
8 changed files with 216 additions and 20 deletions
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10
scripts/setup-vm.sh
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@@ -814,12 +814,12 @@ if [ "$PROFILE" = full ]; then
[ "$ok" = 1 ] && echo "patched QEMU and KVM modules both in place."
if [ -n "$MODEL" ] && [ -f /sys/module/kvm_amd/parameters/cpuid_passthrough ]; then
echo
echo "The TIMER check needs CPUID passthrough, which is off by default and must be"
echo "switched on AFTER the guest has booted (it hangs a booting guest). Once the"
echo "guest is up, on the host:"
echo "The TIMER check needs CPUID passthrough, which must be off while the guest cold"
echo "boots and on once it is up. Let the hook handle that around this guest:"
echo " sudo vm-native-cpuid enable $DOM"
echo "Or drive it by hand, after the guest has booted, on the host:"
echo " echo '$MODEL' | sudo tee /sys/module/kvm_amd/parameters/brand_string"
echo " echo Y | sudo tee /sys/module/kvm_amd/parameters/cpuid_passthrough"
echo "Switch it off again (echo N) before rebooting the guest."
echo " echo Y | sudo tee /sys/module/kvm_amd/parameters/cpuid_passthrough # N again before the next boot"
fi
fi