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kvm: x86: Guest BNDCFGS requires guest MPX support
authorJim Mattson <jmattson@google.com>
Wed, 24 May 2017 17:49:25 +0000 (10:49 -0700)
committerRadim Krčmář <rkrcmar@redhat.com>
Wed, 7 Jun 2017 14:28:15 +0000 (16:28 +0200)
commit305fec3494dbf4d05ec89e2d22552cdf4f11bb8b
tree3062d9fd5f53b990277c43c01f06af6f0dafbbf0tree | snapshot
parent45051d3742b44d080cdb21f99da776a407286efccommit | diff
kvm: x86: Guest BNDCFGS requires guest MPX support

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

Fixes: beaf6b2dfb4e0e48 ("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>
arch/x86/kvm/cpuid.h diff | blob | history
arch/x86/kvm/vmx.c diff | blob | history
Linux Kernel Source Tree.