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authorAvi Kivity <avi@qumranet.com>2007-12-18 19:47:18 +0200
committerAvi Kivity <avi@qumranet.com>2008-01-30 18:01:19 +0200
commitdfc5aa00cbe888d3a9ea97775bbac74cb1c1a1d8 (patch)
tree4b39394d26c4a71e9325959fd1a9b438c2e3a239 /arch
parentcaa5b8a5ed27708521e0667649699fea202043b2 (diff)
KVM: MMU: Add cache miss statistic
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kvm/mmu.c1
-rw-r--r--arch/x86/kvm/x86.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 9a57e1a0144..8f12ec52ad8 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -715,6 +715,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
pgprintk("%s: found\n", __FUNCTION__);
return sp;
}
+ ++vcpu->kvm->stat.mmu_cache_miss;
sp = kvm_mmu_alloc_page(vcpu, parent_pte);
if (!sp)
return sp;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 733bff65d9a..fa9e42c0374 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -73,6 +73,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "mmu_pde_zapped", VM_STAT(mmu_pde_zapped) },
{ "mmu_flooded", VM_STAT(mmu_flooded) },
{ "mmu_recycled", VM_STAT(mmu_recycled) },
+ { "mmu_cache_miss", VM_STAT(mmu_cache_miss) },
{ "remote_tlb_flush", VM_STAT(remote_tlb_flush) },
{ NULL }
};