Re: [PATCH v3 0/5] Guest LBR Enabling

[Wei Wang]

On 09/20/2018 07:34 PM, Gonglei (Arei) wrote:

-----Original Message-----
From: kvm-ow...@vger.kernel.org [mailto:kvm-ow...@vger.kernel.org] On
Behalf Of Wei Wang
Sent: Thursday, September 20, 2018 6:06 PM
To: linux-kernel@vger.kernel.org; k...@vger.kernel.org; pbonz...@redhat.com;
a...@linux.intel.com
Cc: kan.li...@intel.com; pet...@infradead.org; mi...@redhat.com;
rkrc...@redhat.com; like...@intel.com; wei.w.w...@intel.com;
ja...@google.com; Gonglei (Arei) <arei.gong...@huawei.com>
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