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| author | Avi Kivity <avi@qumranet.com> | 2007-11-18 15:37:07 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-01-30 16:53:04 +0100 |
| commit | 4cee576493b6abc95cc7447a65f1b9d2b40b8f20 (patch) | |
| tree | 64235c288aaee838e7cebea4d129157935a26e75 /drivers/kvm/mmu.c | |
| parent | KVM: Extend stats support for VM stats (diff) | |
| download | linux-4cee576493b6abc95cc7447a65f1b9d2b40b8f20.tar.xz linux-4cee576493b6abc95cc7447a65f1b9d2b40b8f20.zip | |
KVM: MMU: Add some mmu statistics
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/mmu.c')
| -rw-r--r-- | drivers/kvm/mmu.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c index 9be54a5e858e..87d8e70fe502 100644 --- a/drivers/kvm/mmu.c +++ b/drivers/kvm/mmu.c @@ -755,6 +755,7 @@ static void kvm_mmu_zap_page(struct kvm *kvm, { u64 *parent_pte; + ++kvm->stat.mmu_shadow_zapped; while (page->multimapped || page->parent_pte) { if (!page->multimapped) parent_pte = page->parent_pte; @@ -1226,9 +1227,12 @@ static void mmu_pte_write_new_pte(struct kvm_vcpu *vcpu, const void *new, int bytes, int offset_in_pte) { - if (page->role.level != PT_PAGE_TABLE_LEVEL) + if (page->role.level != PT_PAGE_TABLE_LEVEL) { + ++vcpu->kvm->stat.mmu_pde_zapped; return; + } + ++vcpu->kvm->stat.mmu_pte_updated; if (page->role.glevels == PT32_ROOT_LEVEL) paging32_update_pte(vcpu, page, spte, new, bytes, offset_in_pte); @@ -1263,6 +1267,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, int npte; pgprintk("%s: gpa %llx bytes %d\n", __FUNCTION__, gpa, bytes); + ++vcpu->kvm->stat.mmu_pte_write; kvm_mmu_audit(vcpu, "pre pte write"); if (gfn == vcpu->last_pt_write_gfn && !last_updated_pte_accessed(vcpu)) { @@ -1296,6 +1301,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, pgprintk("misaligned: gpa %llx bytes %d role %x\n", gpa, bytes, page->role.word); kvm_mmu_zap_page(vcpu->kvm, page); + ++vcpu->kvm->stat.mmu_flooded; continue; } page_offset = offset; @@ -1344,6 +1350,7 @@ void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu) page = container_of(vcpu->kvm->active_mmu_pages.prev, struct kvm_mmu_page, link); kvm_mmu_zap_page(vcpu->kvm, page); + ++vcpu->kvm->stat.mmu_recycled; } } |