From 90bb6fc556ab255abd798bcf4ff5769690ab2eea Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Thu, 31 Dec 2009 12:10:16 +0200 Subject: KVM: MMU: Add tracepoint for guest page aging Signed-off-by: Avi Kivity --- include/trace/events/kvm.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'include/trace/events') diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h index 8abdc1230143..b17d49dfc3ef 100644 --- a/include/trace/events/kvm.h +++ b/include/trace/events/kvm.h @@ -164,6 +164,28 @@ TRACE_EVENT(kvm_fpu, TP_printk("%s", __print_symbolic(__entry->load, kvm_fpu_load_symbol)) ); +TRACE_EVENT(kvm_age_page, + TP_PROTO(ulong hva, struct kvm_memory_slot *slot, int ref), + TP_ARGS(hva, slot, ref), + + TP_STRUCT__entry( + __field( u64, hva ) + __field( u64, gfn ) + __field( u8, referenced ) + ), + + TP_fast_assign( + __entry->hva = hva; + __entry->gfn = + slot->base_gfn + ((hva - slot->userspace_addr) >> PAGE_SHIFT); + __entry->referenced = ref; + ), + + TP_printk("hva %llx gfn %llx %s", + __entry->hva, __entry->gfn, + __entry->referenced ? "YOUNG" : "OLD") +); + #endif /* _TRACE_KVM_MAIN_H */ /* This part must be outside protection */ -- cgit v1.2.2