Messages in this thread Patch in this message | | | From | Santosh Shukla <> | Subject | [PATCHv3 5/8] KVM: SVM: Add VNMI support in inject_nmi | Date | Wed, 10 Aug 2022 11:42:23 +0530 |
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Inject the NMI by setting V_NMI in the VMCB interrupt control. processor will clear V_NMI to acknowledge processing has started and will keep the V_NMI_MASK set until the processor is done with processing the NMI event.
Signed-off-by: Santosh Shukla <santosh.shukla@amd.com> --- v3: - Removed WARN_ON check.
v2: - Added WARN_ON check for vnmi pending. - use `get_vnmi_vmcb` to get correct vmcb so to inject vnmi.
arch/x86/kvm/svm/svm.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index e260e8cb0c81..8c4098b8a63e 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -3479,7 +3479,14 @@ static void pre_svm_run(struct kvm_vcpu *vcpu) static void svm_inject_nmi(struct kvm_vcpu *vcpu) { struct vcpu_svm *svm = to_svm(vcpu); + struct vmcb *vmcb = NULL; + if (is_vnmi_enabled(svm)) { + vmcb = get_vnmi_vmcb(svm); + vmcb->control.int_ctl |= V_NMI_PENDING; + ++vcpu->stat.nmi_injections; + return; + } svm->vmcb->control.event_inj = SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_NMI; if (svm->nmi_l1_to_l2) -- 2.25.1
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