From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Wang Subject: Re: [PATCH v3 0/5] Guest LBR Enabling Date: Thu, 20 Sep 2018 20:36:49 +0800 Message-ID: <5BA39461.8020907@intel.com> References: <1537437959-8751-1-git-send-email-wei.w.wang@intel.com> <33183CC9F5247A488A2544077AF19020DB0F73EB@dggeml511-mbx.china.huawei.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Cc: "kan.liang@intel.com" , "peterz@infradead.org" , "mingo@redhat.com" , "rkrcmar@redhat.com" , "like.xu@intel.com" , "jannh@google.com" To: "Gonglei (Arei)" , "linux-kernel@vger.kernel.org" , "kvm@vger.kernel.org" , "pbonzini@redhat.com" , "ak@linux.intel.com" Return-path: In-Reply-To: <33183CC9F5247A488A2544077AF19020DB0F73EB@dggeml511-mbx.china.huawei.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On 09/20/2018 07:34 PM, Gonglei (Arei) wrote: >> -----Original Message----- >> From: kvm-owner@vger.kernel.org [mailto:kvm-owner@vger.kernel.org] On >> Behalf Of Wei Wang >> Sent: Thursday, September 20, 2018 6:06 PM >> To: linux-kernel@vger.kernel.org; kvm@vger.kernel.org; pbonzini@redhat.com; >> ak@linux.intel.com >> Cc: kan.liang@intel.com; peterz@infradead.org; mingo@redhat.com; >> rkrcmar@redhat.com; like.xu@intel.com; wei.w.wang@intel.com; >> jannh@google.com; Gonglei (Arei) >> Subject: [PATCH v3 0/5] Guest LBR Enabling >> >> Last Branch Recording (LBR) is a performance monitor unit (PMU) feature >> on Intel CPUs that captures branch related info. This patch series enables >> this feature to KVM guests. >> >> Here is a conclusion of the fundamental methods that we use: >> 1) the LBR feature is enabled per guest via QEMU setting of >> KVM_CAP_X86_GUEST_LBR; > Did you send the QEMU parts for guest LBR support? > Not yet. Probably next week for the QEMU part. Best, Wei