diff options
| author | Avi Kivity | 2007-12-18 19:47:18 +0200 |
|---|---|---|
| committer | Avi Kivity | 2008-01-30 18:01:19 +0200 |
| commit | dfc5aa00cbe888d3a9ea97775bbac74cb1c1a1d8 (patch) | |
| tree | 4b39394d26c4a71e9325959fd1a9b438c2e3a239 | |
| parent | caa5b8a5ed27708521e0667649699fea202043b2 (diff) | |
KVM: MMU: Add cache miss statistic
Signed-off-by: Avi Kivity <avi@qumranet.com>
| -rw-r--r-- | arch/x86/kvm/mmu.c | 1 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 1 | ||||
| -rw-r--r-- | include/asm-x86/kvm_host.h | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 9a57e1a01449..8f12ec52ad86 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 733bff65d9a9..fa9e42c03741 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 } }; diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 28940e1a9713..ced1bebabbc8 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -289,6 +289,7 @@ struct kvm_vm_stat { u32 mmu_pde_zapped; u32 mmu_flooded; u32 mmu_recycled; + u32 mmu_cache_miss; u32 remote_tlb_flush; }; |