From: "Wang, Wei W" <wei.w.wang@intel.com>
To: Eduardo Habkost <ehabkost@redhat.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"ak@linux.intel.com" <ak@linux.intel.com>,
"peterz@infradead.org" <peterz@infradead.org>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"Liang, Kan" <kan.liang@intel.com>,
"mingo@redhat.com" <mingo@redhat.com>,
"rkrcmar@redhat.com" <rkrcmar@redhat.com>,
"Xu, Like" <like.xu@intel.com>,
"jannh@google.com" <jannh@google.com>,
"arei.gonglei@huawei.com" <arei.gonglei@huawei.com>,
"jmattson@google.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: Fri, 31 Jan 2020 01:01:56 +0000 [thread overview]
Message-ID: <286AC319A985734F985F78AFA26841F73E3F9B0D@shsmsx102.ccr.corp.intel.com> (raw)
In-Reply-To: <20200130201411.GF25446@habkost.net>
On Friday, January 31, 2020 4:14 AM, Eduardo Habkost wrote:
> 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?
>
Yes, we have a couple of qemu patches. That's planned to be reviewed after the kernel part gets finalized 😊
Best,
Wei
prev parent reply other threads:[~2020-01-31 1:02 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-06 7:16 [PATCH v8 00/14] Guest LBR Enabling 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
2020-01-31 1:01 ` Wang, Wei W [this message]
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