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[7/7] KVM: SVM: Enable VNMI feature

Message ID 20220602142620.3196-8-santosh.shukla@amd.com (mailing list archive)
State New, archived
Headers show
Series Virtual NMI feature | expand

Commit Message

Shukla, Santosh June 2, 2022, 2:26 p.m. UTC 
Enable the NMI virtualization (V_NMI_ENABLE) in the VMCB interrupt
control when the vnmi module parameter is set.

Signed-off-by: Santosh Shukla <santosh.shukla@amd.com>
---
 arch/x86/kvm/svm/svm.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index c91af728420b..69a98419203e 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1205,6 +1205,9 @@  static void init_vmcb(struct kvm_vcpu *vcpu)
 	if (kvm_vcpu_apicv_active(vcpu))
 		avic_init_vmcb(svm, vmcb);
 
+	if (vnmi)
+		svm->vmcb->control.int_ctl |= V_NMI_ENABLE;
+
 	if (vgif) {
 		svm_clr_intercept(svm, INTERCEPT_STGI);
 		svm_clr_intercept(svm, INTERCEPT_CLGI);