From 089504c0d40a24fe37a108c0eda16a9e7b846f12 Mon Sep 17 00:00:00 2001 From: Xiao Guangrong Date: Fri, 7 Jun 2013 16:51:27 +0800 Subject: KVM: MMU: add tracepoint for check_mmio_spte It is useful for debug mmio spte invalidation Signed-off-by: Xiao Guangrong Reviewed-by: Gleb Natapov Reviewed-by: Marcelo Tosatti Signed-off-by: Paolo Bonzini --- arch/x86/kvm/mmutrace.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'arch/x86/kvm/mmutrace.h') 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 -- cgit v1.1