Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 236649de authored by Joerg Roedel's avatar Joerg Roedel Committed by Avi Kivity
Browse files

KVM: SVM: Add tracepoint for #vmexit because intr pending 



This patch adds a special tracepoint for the event that a
nested #vmexit is injected because kvm wants to inject an
interrupt into the guest.

Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
parent 17897f36

arch/x86/kvm/svm.c

+1 −1
Original line number Diff line number Diff line
@@ -1390,7 +1390,7 @@ static inline int nested_svm_intr(struct vcpu_svm *svm) 
		 * the #vmexit here.

		 */

		svm->nested.exit_required = true;

		nsvm_printk("VMexit -> INTR\n");

		trace_kvm_nested_intr_vmexit(svm->vmcb->save.rip);

		return 1;

	}

arch/x86/kvm/trace.h

+18 −0
Original line number Diff line number Diff line
@@ -451,6 +451,24 @@ TRACE_EVENT(kvm_nested_vmexit_inject, 
		__entry->exit_info1, __entry->exit_info2,

		__entry->exit_int_info, __entry->exit_int_info_err)

);



/*

 * Tracepoint for nested #vmexit because of interrupt pending

 */

TRACE_EVENT(kvm_nested_intr_vmexit,

	    TP_PROTO(__u64 rip),

	    TP_ARGS(rip),



	TP_STRUCT__entry(

		__field(	__u64,	rip	)

	),



	TP_fast_assign(

		__entry->rip	=	rip

	),



	TP_printk("rip: 0x%016llx\n", __entry->rip)

);

#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
@@ -4987,3 +4987,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_cr); 
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);