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Commit dfc5aa00 authored by Avi Kivity's avatar Avi Kivity
Browse files

KVM: MMU: Add cache miss statistic 



Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent caa5b8a5

arch/x86/kvm/mmu.c

+1 −0
Original line number Diff line number Diff line
@@ -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;

arch/x86/kvm/x86.c

+1 −0
Original line number Diff line number Diff line
@@ -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 }

};

include/asm-x86/kvm_host.h

+1 −0
Original line number Diff line number Diff line
@@ -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;

};