From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brijesh Singh Subject: Re: [PATCH v2] KVM: x86: Avoid guest page table walk when gpa_available is set Date: Wed, 19 Jul 2017 08:35:31 -0500 Message-ID: <3d6d983e-b8e2-ac6d-409e-38e96f2da940@amd.com> References: <1495206749-25393-1-git-send-email-brijesh.singh@amd.com> <20170719111939.GA16149@potion> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Cc: brijesh.singh@amd.com, pbonzini@redhat.com, joro@8bytes.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, Thomas.Lendacky@amd.com To: =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= Return-path: In-Reply-To: <20170719111939.GA16149@potion> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On 07/19/2017 06:19 AM, Radim Krčmář wrote: > 2017-07-17 16:32-0500, Brijesh Singh: >> Hi Paolo and Radim >> >> Any comments on this patch, I could not find it in 4.13-2 branch. >> >> Please let me know if you want to fix something, or want me to >> refresh and resend the patch. > > Sorry, I tried it during the merge window, but it didn't pass tests on > VMX and I got distracted by other bugs before looking into the cause. > > Can you reproduce the fail? > No worries, thanks. I can try to reproduce it, are you running kvm-unittest or something different? IIRC, VMX does not set the gpa_available flag hence I am wondering what did I miss in the patch to trigger the failure. I will debug it and let you know. -Brijesh