kvm: x86: Guest BNDCFGS requires guest MPX support

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commit 4439af9f91 upstream.

The BNDCFGS MSR should only be exposed to the guest if the guest
supports MPX. (cf. the TSC_AUX MSR and RDTSCP.)

Fixes: 0dd376e709 ("KVM: x86: add MSR_IA32_BNDCFGS to msrs_to_save")
Change-Id: I3ad7c01bda616715137ceac878f3fa7e66b6b387
Signed-off-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Jim Mattson 2017-05-24 10:49:25 -07:00 • committed by Greg Kroah-Hartman

parent bf7c215356

commit fab777e70c

2 changed files with 10 additions and 2 deletions

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8

arch/x86/kvm/cpuid.h

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4

arch/x86/kvm/vmx.c

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