KVM: x86: Explicitly track feature flags that are enabled at runtime

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Add one last (hopefully) CPUID feature macro, RUNTIME_F(), and use it
to track features that KVM supports, but that are only set at runtime
(in response to other state), and aren't advertised to userspace via
KVM_GET_SUPPORTED_CPUID.

Currently, RUNTIME_F() is mostly just documentation, but tracking all
KVM-supported features will allow for asserting, at build time, take),
that all features that are set, cleared, *or* checked by KVM are known to
kvm_set_cpu_caps().

No functional change intended.

Link: https://lore.kernel.org/r/20241128013424.4096668-57-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Sean Christopherson 2024-11-27 17:34:23 -08:00

parent 0fea7aa2dc

commit ac9d1b7591

1 changed files with 17 additions and 4 deletions

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arch/x86/kvm/cpuid.c

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