KVM: x86: fix presentation of TSX feature in ARCH_CAPABILITIES

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KVM does not implement MSR_IA32_TSX_CTRL, so it must not be presented
to the guests.  It is also confusing to have !ARCH_CAP_TSX_CTRL_MSR &&
!RTM && ARCH_CAP_TAA_NO: lack of MSR_IA32_TSX_CTRL suggests TSX was not
hidden (it actually was), yet the value says that TSX is not vulnerable
to microarchitectural data sampling.  Fix both.

Cc: stable@vger.kernel.org
Tested-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Paolo Bonzini 2019-11-18 18:58:26 +01:00

parent 9cb09e7c1c

commit cbbaa2727a

1 changed files with 8 additions and 2 deletions

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arch/x86/kvm/x86.c

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