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KVM: SVM: Add tracepoint for injected #vmexit 

This patch adds a tracepoint for a nested #vmexit that gets
re-injected to the guest.

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 16:08:29 +02:00 committed by Avi Kivity
parent d8cabddf7e
commit 17897f3668
3 changed files with 40 additions and 0 deletions
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6
arch/x86/kvm/svm.c
View File

@ -1592,6 +1592,12 @@ static int nested_svm_vmexit(struct vcpu_svm *svm)
struct vmcb *hsave = svm->nested.hsave;
struct vmcb *vmcb = svm->vmcb;
trace_kvm_nested_vmexit_inject(vmcb->control.exit_code,
vmcb->control.exit_info_1,
vmcb->control.exit_info_2,
vmcb->control.exit_int_info,
vmcb->control.exit_int_info_err);
nested_vmcb = nested_svm_map(svm, svm->nested.vmcb, KM_USER0);
if (!nested_vmcb)
return 1;

33
arch/x86/kvm/trace.h
View File

@ -418,6 +418,39 @@ TRACE_EVENT(kvm_nested_vmexit,
__entry->exit_int_info, __entry->exit_int_info_err)
);
/*
* Tracepoint for #VMEXIT reinjected to the guest
*/
TRACE_EVENT(kvm_nested_vmexit_inject,
TP_PROTO(__u32 exit_code,
__u64 exit_info1, __u64 exit_info2,
__u32 exit_int_info, __u32 exit_int_info_err),
TP_ARGS(exit_code, exit_info1, exit_info2,
exit_int_info, exit_int_info_err),
TP_STRUCT__entry(
__field( __u32, exit_code )
__field( __u64, exit_info1 )
__field( __u64, exit_info2 )
__field( __u32, exit_int_info )
__field( __u32, exit_int_info_err )
),
TP_fast_assign(
__entry->exit_code = exit_code;
__entry->exit_info1 = exit_info1;
__entry->exit_info2 = exit_info2;
__entry->exit_int_info = exit_int_info;
__entry->exit_int_info_err = exit_int_info_err;
),
TP_printk("reason: %s ext_inf1: 0x%016llx "
"ext_inf2: 0x%016llx ext_int: 0x%08x ext_int_err: 0x%08x\n",
ftrace_print_symbols_seq(p, __entry->exit_code,
kvm_x86_ops->exit_reasons_str),
__entry->exit_info1, __entry->exit_info2,
__entry->exit_int_info, __entry->exit_int_info_err)
);
#endif /* _TRACE_KVM_H */
/* This part must be outside protection */

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

@ -4986,3 +4986,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_msr);
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);