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

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On 09/20/2018 07:34 PM, Gonglei (Arei) wrote:
-----Original Message-----
From: kvm-owner@xxxxxxxxxxxxxxx [mailto:kvm-owner@xxxxxxxxxxxxxxx] On
Behalf Of Wei Wang
Sent: Thursday, September 20, 2018 6:06 PM
To: linux-kernel@xxxxxxxxxxxxxxx; kvm@xxxxxxxxxxxxxxx; pbonzini@xxxxxxxxxx;
ak@xxxxxxxxxxxxxxx
Cc: kan.liang@xxxxxxxxx; peterz@xxxxxxxxxxxxx; mingo@xxxxxxxxxx;
rkrcmar@xxxxxxxxxx; like.xu@xxxxxxxxx; wei.w.wang@xxxxxxxxx;
jannh@xxxxxxxxxx; Gonglei (Arei) <arei.gonglei@xxxxxxxxxx>
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



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