From: Eduardo Habkost <ehabkost@redhat.com>
To: Wei Wang <wei.w.wang@intel.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
ak@linux.intel.com, peterz@infradead.org, pbonzini@redhat.com,
kan.liang@intel.com, mingo@redhat.com, rkrcmar@redhat.com,
like.xu@intel.com, jannh@google.com, arei.gonglei@huawei.com,
jmattson@google.com,
Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>,
Jiri Olsa <jolsa@redhat.com>
Subject: Re: [PATCH v8 00/14] Guest LBR Enabling
Date: Thu, 30 Jan 2020 15:14:11 -0500 [thread overview]
Message-ID: <20200130201411.GF25446@habkost.net> (raw)
In-Reply-To: <1565075774-26671-1-git-send-email-wei.w.wang@intel.com>
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
next prev parent reply other threads:[~2020-01-30 20:14 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-06 7:16 Wei Wang
2019-08-06 7:16 ` [PATCH v8 01/14] perf/x86: fix the variable type of the lbr msrs Wei Wang
2019-08-06 7:16 ` [PATCH v8 02/14] perf/x86: add a function to get the addresses of the lbr stack msrs Wei Wang
2019-08-06 7:16 ` [PATCH v8 03/14] KVM/x86: KVM_CAP_X86_GUEST_LBR Wei Wang
2019-08-06 7:16 ` [PATCH v8 04/14] KVM/x86: intel_pmu_lbr_enable Wei Wang
2019-08-06 7:16 ` [PATCH v8 05/14] KVM/x86/vPMU: tweak kvm_pmu_get_msr Wei Wang
2019-08-06 7:16 ` [PATCH v8 06/14] KVM/x86: expose MSR_IA32_PERF_CAPABILITIES to the guest Wei Wang
2019-08-06 7:16 ` [PATCH v8 07/14] perf/x86: support to create a perf event without counter allocation Wei Wang
2019-08-06 7:16 ` [PATCH v8 08/14] perf/core: set the event->owner before event_init Wei Wang
2019-08-06 7:16 ` [PATCH v8 09/14] KVM/x86/vPMU: APIs to create/free lbr perf event for a vcpu thread Wei Wang
2019-08-06 7:16 ` [PATCH v8 10/14] perf/x86/lbr: don't share lbr for the vcpu usage case Wei Wang
2019-08-06 7:16 ` [PATCH v8 11/14] perf/x86: save/restore LBR_SELECT on vcpu switching Wei Wang
2019-08-06 7:16 ` [PATCH v8 12/14] KVM/x86/lbr: lbr emulation Wei Wang
2019-12-10 23:37 ` Sean Christopherson
2019-08-06 7:16 ` [PATCH v8 13/14] KVM/x86/vPMU: check the lbr feature before entering guest Wei Wang
2019-08-07 6:02 ` Wei Wang
2019-08-06 7:16 ` [PATCH v8 14/14] KVM/x86: remove the common handling of the debugctl msr Wei Wang
2019-09-06 8:50 ` [PATCH v8 00/14] Guest LBR Enabling Wang, Wei W
2020-01-30 20:14 ` Eduardo Habkost [this message]
2020-01-31 1:01 ` Wang, Wei W
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