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Commit 0f74a24c authored by Avi Kivity's avatar Avi Kivity
Browse files

KVM: Add statistic for remote tlb flushes 



Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent e5a4c8ca

drivers/kvm/kvm.h

+1 −0
Original line number Diff line number Diff line
@@ -300,6 +300,7 @@ struct kvm_vm_stat { 
	u32 mmu_pde_zapped;

	u32 mmu_flooded;

	u32 mmu_recycled;

	u32 remote_tlb_flush;

};



struct kvm {

drivers/kvm/kvm_main.c

+3 −0
Original line number Diff line number Diff line
@@ -115,6 +115,9 @@ void kvm_flush_remote_tlbs(struct kvm *kvm) 
		if (cpu != -1 && cpu != raw_smp_processor_id())

			cpu_set(cpu, cpus);

	}

	if (cpus_empty(cpus))

		return;

	++kvm->stat.remote_tlb_flush;

	smp_call_function_mask(cpus, ack_flush, NULL, 1);

}

drivers/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) },

	{ "remote_tlb_flush", VM_STAT(remote_tlb_flush) },

	{ NULL }

};