Commit 3b5d1321 authored by Xiao Guangrong's avatar Xiao Guangrong Committed by Avi Kivity
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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: default avatarXiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 5304efde

arch/x86/kvm/mmu.c

+1 −1
Original line number Diff line number Diff line
@@ -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)