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| author | Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> | 2013-06-07 16:51:27 +0800 |
|---|---|---|
| committer | Gleb Natapov <gleb@redhat.com> | 2013-06-27 14:20:37 +0300 |
| commit | 089504c0d40a24fe37a108c0eda16a9e7b846f12 (patch) | |
| tree | 26f08d707df244465b993a8af7ae6471ea152fa5 /arch/x86/kvm/mmutrace.h | |
| parent | f8f559422b6c6a05469dfde614b67789b6142cb5 (diff) | |
| download | op-kernel-dev-089504c0d40a24fe37a108c0eda16a9e7b846f12.zip op-kernel-dev-089504c0d40a24fe37a108c0eda16a9e7b846f12.tar.gz | |
KVM: MMU: add tracepoint for check_mmio_spte
It is useful for debug mmio spte invalidation
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmutrace.h')
| -rw-r--r-- | arch/x86/kvm/mmutrace.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h index ad24757..9d2e0ff 100644 --- a/arch/x86/kvm/mmutrace.h +++ b/arch/x86/kvm/mmutrace.h @@ -298,6 +298,30 @@ TRACE_EVENT( __entry->mmu_valid_gen, __entry->mmu_used_pages ) ); + + +TRACE_EVENT( + check_mmio_spte, + TP_PROTO(u64 spte, unsigned int kvm_gen, unsigned int spte_gen), + TP_ARGS(spte, kvm_gen, spte_gen), + + TP_STRUCT__entry( + __field(unsigned int, kvm_gen) + __field(unsigned int, spte_gen) + __field(u64, spte) + ), + + TP_fast_assign( + __entry->kvm_gen = kvm_gen; + __entry->spte_gen = spte_gen; + __entry->spte = spte; + ), + + TP_printk("spte %llx kvm_gen %x spte-gen %x valid %d", __entry->spte, + __entry->kvm_gen, __entry->spte_gen, + __entry->kvm_gen == __entry->spte_gen + ) +); #endif /* _TRACE_KVMMMU_H */ #undef TRACE_INCLUDE_PATH |
