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KVM: SVM: Add tracepoint for invlpga instruction

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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>
This commit is contained in:
Joerg Roedel 2009-10-09 16:08:31 +02:00 committed by Avi Kivity
parent 236649de33
commit ec1ff79084
3 changed files with 27 additions and 0 deletions
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3
arch/x86/kvm/svm.c
View File

@ -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]);

23
arch/x86/kvm/trace.h
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@ -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 */

1
arch/x86/kvm/x86.c
View File

@ -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);