KVM: x86: Mask off reserved bits in CPUID.80000006H

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commit eeb69eab57 upstream.

KVM_GET_SUPPORTED_CPUID should only enumerate features that KVM
actually supports. CPUID.80000006H:EDX[17:16] are reserved bits and
should be masked off.

Fixes: 43d05de2be ("KVM: pass through CPUID(0x80000006)")
Signed-off-by: Jim Mattson <jmattson@google.com>
Message-Id: <20220929225203.2234702-2-jmattson@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jim Mattson 2022-09-29 15:51:59 -07:00 • committed by Greg Kroah-Hartman

parent a88998446b

commit ef7716398a

1 changed files with 2 additions and 1 deletions

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arch/x86/kvm/cpuid.c

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