From mboxrd@z Thu Jan 1 00:00:00 1970 From: Radim =?utf-8?B?S3LEjW3DocWZ?= Subject: Re: [PATCH] KVM: nVMX: don't reset kvm mmu twice Date: Tue, 14 Mar 2017 21:39:12 +0100 Message-ID: <20170314203912.GC14790@potion> References: <1489308832-29078-1-git-send-email-wanpeng.li@hotmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Paolo Bonzini , Wanpeng Li To: Wanpeng Li Return-path: Content-Disposition: inline In-Reply-To: <1489308832-29078-1-git-send-email-wanpeng.li@hotmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org 2017-03-12 00:53-0800, Wanpeng Li: > From: Wanpeng Li > > kvm mmu is reset once successfully loading CR3 as part of emulating vmentry > in nested_vmx_load_cr3(). We should not reset kvm mmu twice. > > Cc: Paolo Bonzini > Cc: Radim Krčmář > Signed-off-by: Wanpeng Li > --- Queued, thanks. > arch/x86/kvm/vmx.c | 2 -- > 1 file changed, 2 deletions(-) > > diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c > index 98e82ee..bca8d7a 100644 > --- a/arch/x86/kvm/vmx.c > +++ b/arch/x86/kvm/vmx.c > @@ -10286,8 +10286,6 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12, > entry_failure_code)) > return 1; > > - kvm_mmu_reset_context(vcpu); > - > if (!enable_ept) > vcpu->arch.walk_mmu->inject_page_fault = vmx_inject_page_fault_nested; > > -- > 2.7.4 >