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=-15.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,HK_RANDOM_FROM,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 D940DC432BE for ; Tue, 24 Aug 2021 11:08:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C0896613AB for ; Tue, 24 Aug 2021 11:08:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236793AbhHXLJ0 (ORCPT ); Tue, 24 Aug 2021 07:09:26 -0400 Received: from mga18.intel.com ([134.134.136.126]:3710 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236731AbhHXLJM (ORCPT ); Tue, 24 Aug 2021 07:09:12 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10085"; a="204423845" X-IronPort-AV: E=Sophos;i="5.84,347,1620716400"; d="scan'208";a="204423845" 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 04:08:27 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,347,1620716400"; d="scan'208";a="493501648" Received: from lxy-dell.sh.intel.com ([10.239.159.31]) by fmsmga008.fm.intel.com with ESMTP; 24 Aug 2021 04:08:25 -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 2/5] KVM: VMX: Use cached vmx->pt_desc.addr_range Date: Tue, 24 Aug 2021 19:07:40 +0800 Message-Id: <20210824110743.531127-3-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210824110743.531127-1-xiaoyao.li@intel.com> References: <20210824110743.531127-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The number of guest's valid PT ADDR MSRs is cached in vmx->pt_desc.addr_range. Use it instead of calculating it again. Signed-off-by: Xiaoyao Li --- arch/x86/kvm/vmx/vmx.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index e0a9460e4dab..7ed96c460661 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -2202,8 +2202,7 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) if (!pt_can_write_msr(vmx)) return 1; index = msr_info->index - MSR_IA32_RTIT_ADDR0_A; - if (index >= 2 * intel_pt_validate_cap(vmx->pt_desc.caps, - PT_CAP_num_address_ranges)) + if (index >= 2 * vmx->pt_desc.addr_range) return 1; if (is_noncanonical_address(data, vcpu)) return 1; -- 2.27.0