linux-kernel - Re: [PATCH v8 00/14] Guest LBR Enabling

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Message-ID: <20200130201411.GF25446@habkost.net>
Date:   Thu, 30 Jan 2020 15:14:11 -0500
From:   Eduardo Habkost <ehabkost@...hat.com>
To:     Wei Wang <wei.w.wang@...el.com>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        ak@...ux.intel.com, peterz@...radead.org, pbonzini@...hat.com,
        kan.liang@...el.com, mingo@...hat.com, rkrcmar@...hat.com,
        like.xu@...el.com, jannh@...gle.com, arei.gonglei@...wei.com,
        jmattson@...gle.com,
        Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>,
        Jiri Olsa <jolsa@...hat.com>
Subject: Re: [PATCH v8 00/14] Guest LBR Enabling

On Tue, Aug 06, 2019 at 03:16:00PM +0800, Wei Wang wrote:
> 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.
> 
> Each guest can be configured to expose this LBR feature to the guest via
> userspace setting the enabling param in KVM_CAP_X86_GUEST_LBR (patch 3).

Are QEMU patches for enabling KVM_CAP_X86_GUEST_LBR being planned?

-- 
Eduardo