KVM: PPC: Add tracepoints for generic spte flushes

The different ways of flusing shadow ptes have their own debug prints which use
stupid old printk.

Let's move them to tracepoints, making them easier available, faster and
possible to activate on demand

Signed-off-by: Alexander Graf <agraf@suse.de>

1 files changed, 23 insertions, 0 deletions

diff --git a/arch/powerpc/kvm/trace.h b/arch/powerpc/kvm/trace.h
index 06ad93e40648..23f757a69163 100644
--- a/arch/powerpc/kvm/trace.h
+++ b/arch/powerpc/kvm/trace.h
@@ -239,6 +239,29 @@ TRACE_EVENT(kvm_book3s_mmu_invalidate,
                   __entry->vpage, __entry->raddr, __entry->flags)
 );
 
+TRACE_EVENT(kvm_book3s_mmu_flush,
+        TP_PROTO(const char *type, struct kvm_vcpu *vcpu, unsigned long long p1,
+                 unsigned long long p2),
+        TP_ARGS(type, vcpu, p1, p2),
+
+        TP_STRUCT__entry(
+                __field(        int,                    count           )
+                __field(        unsigned long long,     p1              )
+                __field(        unsigned long long,     p2              )
+                __field(        const char *,           type            )
+        ),
+
+        TP_fast_assign(
+                __entry->count          = vcpu->arch.hpte_cache_count;
+                __entry->p1             = p1;
+                __entry->p2             = p2;
+                __entry->type           = type;
+        ),
+
+        TP_printk("Flush %d %sPTEs: %llx - %llx",
+                  __entry->count, __entry->type, __entry->p1, __entry->p2)
+);
+
 #endif /* CONFIG_PPC_BOOK3S */
 
 #endif /* _TRACE_KVM_H */