KVM: MMU: add tracepoint for kvm_mmu_invalidate_all_pages

It is good for debug and development

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index c8063b9b30ee..3fd060af5394 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -4264,6 +4264,7 @@ restart:
 void kvm_mmu_invalidate_zap_all_pages(struct kvm *kvm)
 {
         spin_lock(&kvm->mmu_lock);
+        trace_kvm_mmu_invalidate_zap_all_pages(kvm);
         kvm->arch.mmu_valid_gen++;
 
         kvm_zap_obsolete_pages(kvm);