From patchwork Tue Aug 24 11:07:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 12454805 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=-10.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,HK_RANDOM_FROM,INCLUDES_PATCH, MAILING_LIST_MULTI,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 B4BFDC4338F for ; Tue, 24 Aug 2021 11:08:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9BA8860FD9 for ; Tue, 24 Aug 2021 11:08:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236715AbhHXLJK (ORCPT ); Tue, 24 Aug 2021 07:09:10 -0400 Received: from mga18.intel.com ([134.134.136.126]:3702 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236678AbhHXLJG (ORCPT ); Tue, 24 Aug 2021 07:09:06 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10085"; a="204423817" X-IronPort-AV: E=Sophos;i="5.84,347,1620716400"; d="scan'208";a="204423817" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Aug 2021 04:08:22 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,347,1620716400"; d="scan'208";a="493501615" Received: from lxy-dell.sh.intel.com ([10.239.159.31]) by fmsmga008.fm.intel.com with ESMTP; 24 Aug 2021 04:08:19 -0700 From: Xiaoyao Li To: Paolo Bonzini Cc: Xiaoyao Li , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/5] KVM: VMX: PT (processor trace) optimizations and fixes Date: Tue, 24 Aug 2021 19:07:38 +0800 Message-Id: <20210824110743.531127-1-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Patch 1 and 2 are optimizations and cleanup. Patch 3 - 5 are fixes for PT handling. Xiaoyao Li (5): KVM: VMX: Restore host's MSR_IA32_RTIT_CTL when it's not zero KVM: VMX: Use cached vmx->pt_desc.addr_range KVM: VMX: RTIT_CTL_BRANCH_EN has no dependency on other CPUID bit KVM: VMX: Disallow PT MSRs accessing if PT is not exposed to guest KVM: VMX: Check Intel PT related CPUID leaves arch/x86/kvm/cpuid.c | 25 +++++++++++++++++++++++++ arch/x86/kvm/vmx/vmx.c | 34 +++++++++++++++++++++------------- 2 files changed, 46 insertions(+), 13 deletions(-)