From 3b5d13218667b3ca52efa52cec1d322163bf5465 Mon Sep 17 00:00:00 2001 From: Xiao Guangrong Date: Tue, 8 Jun 2010 20:07:01 +0800 Subject: KVM: MMU: delay local tlb flush delay local tlb flush until enter guest moden, it can reduce vpid flush frequency and reduce remote tlb flush IPI(if KVM_REQ_TLB_FLUSH bit is already set, IPI is not sent) Signed-off-by: Xiao Guangrong Signed-off-by: Avi Kivity --- arch/x86/kvm/mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/kvm') diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index e087f85..4706a93 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2364,7 +2364,7 @@ static int nonpaging_init_context(struct kvm_vcpu *vcpu) void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu) { ++vcpu->stat.tlb_flush; - kvm_x86_ops->tlb_flush(vcpu); + set_bit(KVM_REQ_TLB_FLUSH, &vcpu->requests); } static void paging_new_cr3(struct kvm_vcpu *vcpu) -- cgit v1.1