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=-9.8 required=3.0 tests=DATE_IN_FUTURE_06_12, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 70B8AC4332E for ; Thu, 19 Mar 2020 06:36:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 50D5520409 for ; Thu, 19 Mar 2020 06:36:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727282AbgCSGgH (ORCPT ); Thu, 19 Mar 2020 02:36:07 -0400 Received: from mga12.intel.com ([192.55.52.136]:25753 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727026AbgCSGgH (ORCPT ); Thu, 19 Mar 2020 02:36:07 -0400 IronPort-SDR: ZAQ6D+KT8gR5YRxuhiw0noZBPrjy0r5uNa4S2WQ6jgYEY84oMjs0g55cXW7EHO6FjMjk/zaaB+ peP1mrucmlrg== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Mar 2020 23:36:06 -0700 IronPort-SDR: F6KwX0Atn4KHwoE0e6DWfKBmMZKeFiBSHNbcsydGQRTVJZ1TI4l4JFOF7eOdCDmqeXo1b9LSlc BEhoesRzxsFw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,570,1574150400"; d="scan'208";a="248439246" Received: from snr.bj.intel.com ([10.240.193.90]) by orsmga006.jf.intel.com with ESMTP; 18 Mar 2020 23:36:00 -0700 From: Luwei Kang To: x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: peterz@infradead.org, mingo@redhat.com, acme@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@redhat.com, namhyung@kernel.org, tglx@linutronix.de, bp@alien8.de, hpa@zytor.com, pbonzini@redhat.com, sean.j.christopherson@intel.com, vkuznets@redhat.com, wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org, pawan.kumar.gupta@linux.intel.com, ak@linux.intel.com, thomas.lendacky@amd.com, fenghua.yu@intel.com, kan.liang@linux.intel.com, Luwei Kang Subject: [PATCH v2 5/5] KVM: VMX: Switch PEBS records output to Intel PT buffer Date: Thu, 19 Mar 2020 22:33:50 +0800 Message-Id: <1584628430-23220-6-git-send-email-luwei.kang@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1584628430-23220-1-git-send-email-luwei.kang@intel.com> References: <1584628430-23220-1-git-send-email-luwei.kang@intel.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Switch PEBS records output to Intel PT buffer when PEBS is enabled in KVM guest by Intel PT. Signed-off-by: Luwei Kang --- arch/x86/kvm/vmx/vmx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index c6d9a87..ec74656 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -921,6 +921,7 @@ void add_atomic_switch_msr(struct vcpu_vmx *vmx, unsigned msr, { int i, j = 0; struct msr_autoload *m = &vmx->msr_autoload; + struct kvm_pmu *pmu = vcpu_to_pmu(&vmx->vcpu); switch (msr) { case MSR_EFER: @@ -952,6 +953,8 @@ void add_atomic_switch_msr(struct vcpu_vmx *vmx, unsigned msr, * guest's memory. */ wrmsrl(MSR_IA32_PEBS_ENABLE, 0); + if ((pmu->pebs_enable & PEBS_OUTPUT_MASK) == PEBS_OUTPUT_PT) + guest_val |= PEBS_OUTPUT_PT; } i = vmx_find_msr_index(&m->guest, msr); -- 1.8.3.1