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-rw-r--r--arch/x86/kvm/svm.c10
-rw-r--r--arch/x86/kvm/trace.h22
-rw-r--r--arch/x86/kvm/x86.c1
3 files changed, 32 insertions, 1 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index ba18fb7..8b9f6fb 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1987,6 +1987,14 @@ static int invlpga_interception(struct vcpu_svm *svm)
return 1;
}
+static int skinit_interception(struct vcpu_svm *svm)
+{
+ trace_kvm_skinit(svm->vmcb->save.rip, svm->vcpu.arch.regs[VCPU_REGS_RAX]);
+
+ kvm_queue_exception(&svm->vcpu, UD_VECTOR);
+ return 1;
+}
+
static int invalid_op_interception(struct vcpu_svm *svm)
{
kvm_queue_exception(&svm->vcpu, UD_VECTOR);
@@ -2350,7 +2358,7 @@ static int (*svm_exit_handlers[])(struct vcpu_svm *svm) = {
[SVM_EXIT_VMSAVE] = vmsave_interception,
[SVM_EXIT_STGI] = stgi_interception,
[SVM_EXIT_CLGI] = clgi_interception,
- [SVM_EXIT_SKINIT] = invalid_op_interception,
+ [SVM_EXIT_SKINIT] = skinit_interception,
[SVM_EXIT_WBINVD] = emulate_on_interception,
[SVM_EXIT_MONITOR] = invalid_op_interception,
[SVM_EXIT_MWAIT] = invalid_op_interception,
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index 7e1f08e..816e044 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -492,6 +492,28 @@ TRACE_EVENT(kvm_invlpga,
TP_printk("rip: 0x%016llx asid: %d address: 0x%016llx\n",
__entry->rip, __entry->asid, __entry->address)
);
+
+/*
+ * Tracepoint for nested #vmexit because of interrupt pending
+ */
+TRACE_EVENT(kvm_skinit,
+ TP_PROTO(__u64 rip, __u32 slb),
+ TP_ARGS(rip, slb),
+
+ TP_STRUCT__entry(
+ __field( __u64, rip )
+ __field( __u32, slb )
+ ),
+
+ TP_fast_assign(
+ __entry->rip = rip;
+ __entry->slb = slb;
+ ),
+
+ TP_printk("rip: 0x%016llx slb: 0x%08x\n",
+ __entry->rip, __entry->slb)
+);
+
#endif /* _TRACE_KVM_H */
/* This part must be outside protection */
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 86596fc..098e7f8 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4989,3 +4989,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_nested_vmexit);
EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_nested_vmexit_inject);
EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_nested_intr_vmexit);
EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_invlpga);
+EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_skinit);
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