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Commit ec1ff790 authored by Joerg Roedel's avatar Joerg Roedel Committed by Avi Kivity
Browse files

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: default avatarJoerg Roedel <joerg.roedel@amd.com>
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
parent 236649de

arch/x86/kvm/svm.c

+3 −0
Original line number Diff line number Diff line
@@ -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]);

arch/x86/kvm/trace.h

+23 −0
Original line number Diff line number Diff line
@@ -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 */

arch/x86/kvm/x86.c

+1 −0
Original line number Diff line number Diff line
@@ -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);