Commit 66a5a347 authored by Jan Kiszka's avatar Jan Kiszka Committed by Avi Kivity
Browse files

KVM: VMX: fix real-mode NMI support 



Fix NMI injection in real-mode with the same pattern we perform IRQ
injection.

Signed-off-by: default avatarJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent f460ee43

arch/x86/kvm/vmx.c

+13 −0
Original line number Diff line number Diff line
@@ -2358,6 +2358,19 @@ static void vmx_inject_irq(struct kvm_vcpu *vcpu, int irq) 


static void vmx_inject_nmi(struct kvm_vcpu *vcpu)

{

	struct vcpu_vmx *vmx = to_vmx(vcpu);



	if (vcpu->arch.rmode.active) {

		vmx->rmode.irq.pending = true;

		vmx->rmode.irq.vector = NMI_VECTOR;

		vmx->rmode.irq.rip = kvm_rip_read(vcpu);

		vmcs_write32(VM_ENTRY_INTR_INFO_FIELD,

			     NMI_VECTOR | INTR_TYPE_SOFT_INTR |

			     INTR_INFO_VALID_MASK);

		vmcs_write32(VM_ENTRY_INSTRUCTION_LEN, 1);

		kvm_rip_write(vcpu, vmx->rmode.irq.rip - 1);

		return;

	}

	vmcs_write32(VM_ENTRY_INTR_INFO_FIELD,

			INTR_TYPE_NMI_INTR | INTR_INFO_VALID_MASK | NMI_VECTOR);

}