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(parent: 079f688) | patch
KVM: x86: Mask off reserved bits in CPUID.8000001FH
authorJim Mattson <jmattson@google.com>
Thu, 29 Sep 2022 22:52:03 +0000 (15:52 -0700)
committerPaolo Bonzini <pbonzini@redhat.com>
Thu, 27 Oct 2022 08:41:54 +0000 (04:41 -0400)
commit86c4f0d547f6460d0426ebb3ba0614f1134b8cda
treebc0a6adfec377c2321f77b658dfcf920f20c8009tree | snapshot
parent079f6889818dd07903fb36c252532ab47ebb6d48commit | diff
KVM: x86: Mask off reserved bits in CPUID.8000001FH

KVM_GET_SUPPORTED_CPUID should only enumerate features that KVM
actually supports. CPUID.8000001FH:EBX[31:16] are reserved bits and
should be masked off.

Fixes: 8765d75329a3 ("KVM: X86: Extend CPUID range to include new leaf")
Signed-off-by: Jim Mattson <jmattson@google.com>
Message-Id: <20220929225203.2234702-6-jmattson@google.com>
Cc: stable@vger.kernel.org
[Clear NumVMPL too. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/cpuid.c diff | blob | history
Domain: System / Kernel;