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Subject[PATCH 04/50] KVM: SVM: implement dedicated NMI exit handler
Date
From: Joerg Roedel <joerg.roedel@amd.com>

With an exit handler for NMI intercepts its possible to account them using
kvmtrace.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
arch/x86/kvm/svm.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 6b0d5fa..8a2118b 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1081,6 +1081,11 @@ static int io_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
return kvm_emulate_pio(&svm->vcpu, kvm_run, in, size, port);
}

+static int nmi_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+ return 1;
+}
+
static int nop_on_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
{
return 1;
@@ -1365,7 +1370,7 @@ static int (*svm_exit_handlers[])(struct vcpu_svm *svm,
[SVM_EXIT_EXCP_BASE + NM_VECTOR] = nm_interception,
[SVM_EXIT_EXCP_BASE + MC_VECTOR] = mc_interception,
[SVM_EXIT_INTR] = nop_on_interception,
- [SVM_EXIT_NMI] = nop_on_interception,
+ [SVM_EXIT_NMI] = nmi_interception,
[SVM_EXIT_SMI] = nop_on_interception,
[SVM_EXIT_INIT] = nop_on_interception,
[SVM_EXIT_VINTR] = interrupt_window_interception,
--
1.5.6


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