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=-2.4 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,USER_AGENT_SANE_1 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 2744CC3F2D1 for ; Tue, 3 Mar 2020 15:36:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EF5C120838 for ; Tue, 3 Mar 2020 15:36:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="AG67bF89" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729996AbgCCPgD (ORCPT ); Tue, 3 Mar 2020 10:36:03 -0500 Received: from us-smtp-2.mimecast.com ([205.139.110.61]:38241 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729987AbgCCPgC (ORCPT ); Tue, 3 Mar 2020 10:36:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1583249761; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ujsLLzVuYTRYMxSwdOvoebiKOIVvxP1nddRp1hnsi8w=; b=AG67bF89heOsL1VOxmx+RKzO58Y4PQc2BFbieZ4+s2hESivstalqS8H+dozQl9cpmSi3lE uoGywm0ZLdWRDd4EleEUzZxVtmPtj2lppjKzMuzac1m5j6rfY1V02a2W0bnN8m9JyZb7cP vk3tkJrBhpItIGdyl5Pbtg5pg8SLBc8= Received: from mail-wr1-f69.google.com (mail-wr1-f69.google.com [209.85.221.69]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-352-ysY8uv4rOeeJQAduU8OgHQ-1; Tue, 03 Mar 2020 10:36:00 -0500 X-MC-Unique: ysY8uv4rOeeJQAduU8OgHQ-1 Received: by mail-wr1-f69.google.com with SMTP id j32so1377349wre.13 for ; Tue, 03 Mar 2020 07:35:59 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=ujsLLzVuYTRYMxSwdOvoebiKOIVvxP1nddRp1hnsi8w=; b=G7kYUc1Em2C6OmqRueEmL4zw1odIjeEvemDkYNRybaq5aeqCxtRaaDxIVY+kd3RtXQ A6VYYGwVGep2/gVqc+cWVN1QhSpYno8sIgxzl51DtPCDPZg1zA1lHlzGZF9ro7tpbrws lHfRo89rgHUD6tf9/SSp3wrgf+HRYshMxqZ86Uu+s3ioAVc5Pq2WGwKvmp37P6736Dgg SzkB55xFJvss8qbz2ner7KRvEZkFgq1ZO0J8WOuE5BxmdTy9fkHBM0WzIOU9nNoiymdd 6z4alNcMU6gKXqaS2er6UL9Jmyz3DqFAI88SoEWWhOCam4jZxSfYXzDDxX0mpPJA8/fl 6yaQ== X-Gm-Message-State: ANhLgQ0E8n64vi2o3ctPn+InHz8Iy3xo/NsrqqooFjM28cPydFBEKAcS b/64bgMzo/XeIExypvlqLB1V7p4+8Hi8ohVLUS/vdpsOFNNQSEGKQ+AHOcUoYlXLxfS60yGJ9qH vvA1X3Lf9WVEUuofqWB/SKrS9 X-Received: by 2002:adf:fa0f:: with SMTP id m15mr6386526wrr.392.1583249758943; Tue, 03 Mar 2020 07:35:58 -0800 (PST) X-Google-Smtp-Source: ADFU+vtXOdsBuRFJDRHIa5TRjfWnThT4qNW6T0BPy5J15OWGLpEe3lKOi93Q21PvbTbxna5Yu0DsqQ== X-Received: by 2002:adf:fa0f:: with SMTP id m15mr6386514wrr.392.1583249758741; Tue, 03 Mar 2020 07:35:58 -0800 (PST) Received: from [192.168.178.40] ([151.20.254.94]) by smtp.gmail.com with ESMTPSA id f3sm3777601wrs.26.2020.03.03.07.35.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 03 Mar 2020 07:35:58 -0800 (PST) Subject: Re: [PATCH v2 66/66] KVM: x86: Move nSVM CPUID 0x8000000A handing into common x86 code To: Sean Christopherson Cc: Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Xiaoyao Li References: <20200302235709.27467-1-sean.j.christopherson@intel.com> <20200302235709.27467-67-sean.j.christopherson@intel.com> From: Paolo Bonzini Message-ID: <9d2b5256-5c00-54d2-8f73-c78d54b23552@redhat.com> Date: Tue, 3 Mar 2020 16:35:57 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <20200302235709.27467-67-sean.j.christopherson@intel.com> Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/03/20 00:57, Sean Christopherson wrote: > + case 0x8000000A: > + if (!kvm_cpu_cap_has(X86_FEATURE_SVM)) { > + entry->eax = entry->ebx = entry->ecx = entry->edx = 0; > + break; > + } > + entry->eax = 1; /* SVM revision 1 */ > + entry->ebx = 8; /* Lets support 8 ASIDs in case we add proper > + ASID emulation to nested SVM */ > + entry->ecx = 0; /* Reserved */ > + /* Note, 0x8000000A.EDX is managed via kvm_cpu_caps. */; ... meaning this should do cpuid_entry_override(entry, CPUID_8000_000A_EDX); shouldn't it? Paolo > + break;