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| author | Paolo Bonzini <pbonzini@redhat.com> | 2017-08-24 15:48:03 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-08-24 19:09:13 +0300 |
| commit | 3db134805c69aae16ba6193946aa8deccd393ead (patch) | |
| tree | e9cb104b81f6b3f3c9d2a1a22e3151bf7f133264 /arch/x86/kvm/cpuid.c | |
| parent | 75f4fc8da9bd3b56f08ff8ba4113e5c57a85c24c (diff) | |
| download | linux-3db134805c69aae16ba6193946aa8deccd393ead.tar.xz | |
kvm: vmx: Raise #UD on unsupported XSAVES/XRSTORS
A guest may not be configured to support XSAVES/XRSTORS, even when the host
does. If the guest does not support XSAVES/XRSTORS, clear the secondary
execution control so that the processor will raise #UD.
Also clear the "allowed-1" bit for XSAVES/XRSTORS exiting in the
IA32_VMX_PROCBASED_CTLS2 MSR, and pass through VMCS12's control in
the VMCS02.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/cpuid.c')
0 files changed, 0 insertions, 0 deletions