KVM: SVM: Add tracepoint for invlpga instruction

This patch adds a tracepoint for the event that the guest executed the INVLPGA instruction. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
git-mirror · Dec 3, 2009 · ec1ff79 · ec1ff79
1 parent 236649d
commit ec1ff79
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diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
@@ -1976,6 +1976,9 @@ static int invlpga_interception(struct vcpu_svm *svm)
 	struct kvm_vcpu *vcpu = &svm->vcpu;
 	nsvm_printk("INVLPGA\n");
 
+	trace_kvm_invlpga(svm->vmcb->save.rip, vcpu->arch.regs[VCPU_REGS_RCX],
+			  vcpu->arch.regs[VCPU_REGS_RAX]);
+
 	/* Let's treat INVLPGA the same as INVLPG (can be optimized!) */
 	kvm_mmu_invlpg(vcpu, vcpu->arch.regs[VCPU_REGS_RAX]);
 

diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
@@ -469,6 +469,29 @@ TRACE_EVENT(kvm_nested_intr_vmexit,
 
 	TP_printk("rip: 0x%016llx\n", __entry->rip)
 );
+
+/*
+ * Tracepoint for nested #vmexit because of interrupt pending
+ */
+TRACE_EVENT(kvm_invlpga,
+	    TP_PROTO(__u64 rip, int asid, u64 address),
+	    TP_ARGS(rip, asid, address),
+
+	TP_STRUCT__entry(
+		__field(	__u64,	rip	)
+		__field(	int,	asid	)
+		__field(	__u64,	address	)
+	),
+
+	TP_fast_assign(
+		__entry->rip		=	rip;
+		__entry->asid		=	asid;
+		__entry->address	=	address;
+	),
+
+	TP_printk("rip: 0x%016llx asid: %d address: 0x%016llx\n",
+		  __entry->rip, __entry->asid, __entry->address)
+);
 #endif /* _TRACE_KVM_H */
 
 /* This part must be outside protection */

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
@@ -4988,3 +4988,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_nested_vmrun);
 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);