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KVM: VMX: align vmx->nested.nested_vmx_secondary_ctls_high to vmx->rdtscp_enabled

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The SECONDARY_EXEC_RDTSCP must be available iff RDTSCP is enabled in the
guest.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2015-09-15 17:34:42 +02:00
parent 29541bb8f4
commit 8b97265a15
1 changed files with 8 additions and 3 deletions
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11
arch/x86/kvm/vmx.c
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@ -8686,9 +8686,14 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu)
exec_control);
}
if (nested && !vmx->rdtscp_enabled)
vmx->nested.nested_vmx_secondary_ctls_high &=
~SECONDARY_EXEC_RDTSCP;
if (nested) {
if (vmx->rdtscp_enabled)
vmx->nested.nested_vmx_secondary_ctls_high |=
SECONDARY_EXEC_RDTSCP;
else
vmx->nested.nested_vmx_secondary_ctls_high &=
~SECONDARY_EXEC_RDTSCP;
}
}
/* Exposing INVPCID only when PCID is exposed */