KVM: x86: Add helper to query if variable MTRR MSR is base (versus mask)

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Add a helper to query whether a variable MTRR MSR is a base versus as mask
MSR.  Replace the unnecessarily complex math with a simple check on bit 0;
base MSRs are even, mask MSRs are odd.

Link: https://lore.kernel.org/r/20230511233351.635053-4-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Sean Christopherson 2023-05-11 16:33:46 -07:00

parent 7aeae02761

commit ebda79e505

1 changed files with 9 additions and 7 deletions

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arch/x86/kvm/mtrr.c

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