KVM: x86: Expand build-time assertion on reverse CPUID usage

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Add build-time checks to ensure KVM isn't trying to do a reverse CPUID
lookup on Linux-defined feature bits, along with comments to explain
the gory details of X86_FEATUREs and bit().

No functional change intended.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2019-12-17 13:32:41 -08:00 • committed by Paolo Bonzini

parent daa0d8c3a4

commit a7c48c3f56

2 changed files with 30 additions and 6 deletions

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3

arch/x86/kvm/cpuid.c

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33

arch/x86/kvm/cpuid.h

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