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| author | Eduardo Habkost <ehabkost@redhat.com> | 2018-12-05 22:19:56 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-12-14 19:59:59 +0300 |
| commit | d7b09c827a6cf291f66637a36f46928dd1423184 (patch) | |
| tree | 137154c5b5b983f7f017bff8164f9665d0271294 /arch/x86/kvm/vmx/vmx.c | |
| parent | 87a8d795b2f1d926b4e831d27144d3e6ab7e33dc (diff) | |
| download | linux-d7b09c827a6cf291f66637a36f46928dd1423184.tar.xz | |
kvm: x86: Report STIBP on GET_SUPPORTED_CPUID
Months ago, we have added code to allow direct access to MSR_IA32_SPEC_CTRL
to the guest, which makes STIBP available to guests. This was implemented
by commits d28b387fb74d ("KVM/VMX: Allow direct access to
MSR_IA32_SPEC_CTRL") and b2ac58f90540 ("KVM/SVM: Allow direct access to
MSR_IA32_SPEC_CTRL").
However, we never updated GET_SUPPORTED_CPUID to let userspace know that
STIBP can be enabled in CPUID. Fix that by updating
kvm_cpuid_8000_0008_ebx_x86_features and kvm_cpuid_7_0_edx_x86_features.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx/vmx.c')
0 files changed, 0 insertions, 0 deletions