From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D93D6C2D0DB for ; Thu, 30 Jan 2020 20:14:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AD125214AF for ; Thu, 30 Jan 2020 20:14:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ByIPweAT" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727318AbgA3UOT (ORCPT ); Thu, 30 Jan 2020 15:14:19 -0500 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:35474 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726514AbgA3UOT (ORCPT ); Thu, 30 Jan 2020 15:14:19 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1580415258; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=It49j9LVTEdfoN2GEBrycA6NOResxAai2wxDK0RMpj4=; b=ByIPweATlBxfk4QLbk999ojVIqLOZkkkwvsAeupEgunDiQW+Csz7NohEklpsokmW+OJdc7 Gx4+QWUlYOVm8t3eRG8S9uT0FE8xTaygBZH+/JFMs94viqNOxP/HwLmrOW7aYq2LWH4T5S inIIzKdmji+Fo4A7I9xYfX2VRB5cKpg= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-212-wmRWdobNOZq_4MnUvh1Upw-1; Thu, 30 Jan 2020 15:14:16 -0500 X-MC-Unique: wmRWdobNOZq_4MnUvh1Upw-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 665E3107B26F; Thu, 30 Jan 2020 20:14:14 +0000 (UTC) Received: from localhost (unused-10-15-17-6.yyz.redhat.com [10.15.17.6]) by smtp.corp.redhat.com (Postfix) with ESMTP id A09BB5DA7B; Thu, 30 Jan 2020 20:14:11 +0000 (UTC) Date: Thu, 30 Jan 2020 15:14:11 -0500 From: Eduardo Habkost To: Wei Wang 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 , Jiri Olsa Subject: Re: [PATCH v8 00/14] Guest LBR Enabling Message-ID: <20200130201411.GF25446@habkost.net> References: <1565075774-26671-1-git-send-email-wei.w.wang@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1565075774-26671-1-git-send-email-wei.w.wang@intel.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org 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