From nobody Sat Nov 30 03:46:23 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; arc=pass (i=1dmarc=pass fromdomain=citrix.com); dmarc=pass(p=reject dis=none) header.from=citrix.com ARC-Seal: i=2; a=rsa-sha256; t=1618322623; cv=pass; d=zohomail.com; s=zohoarc; b=VawO8mg0mV4tezxVXRJTG8EvblINgi42DLeUUaUwjrpbiZmJpSkwC/7P5WNrLscBEvr8ECn5JjGqkf5akumahr/SiZbGLHn+ZzS3pw8O0o7lrg+ozvOpv/f4tL/dIXyXFFaaJauWRtEhxj0Us0nfvORpRZSjeXysdm2pvTF/O88= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1618322623; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=Dc+lsGkoLxXeZ9V8GLxDMIl6AZXl0djGMA3EPzv8W5U=; b=Rg6lhCYgvr4Im0JWXATZvFgq2QqBo+9vS9biFzqmjgFjw10bcVtMcORANmnIh4BZZD6mpUFedcTwBGXyJSMzS0w2H6WAT2/1LQnUoyNfIa5XoxXG4B+tHtdec0TrLkD6aDs0a24AxsKiol4ZdQD9UenARhE88I0gtYhXIO81Ceo= ARC-Authentication-Results: i=2; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; arc=pass (i=1dmarc=pass fromdomain=citrix.com); dmarc=pass header.from= (p=reject dis=none) header.from= Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1618322623524475.8051656771247; Tue, 13 Apr 2021 07:03:43 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.109815.209672 (Exim 4.92) (envelope-from ) id 1lWJdW-000682-PQ; Tue, 13 Apr 2021 14:03:26 +0000 Received: by outflank-mailman (output) from mailman id 109815.209672; Tue, 13 Apr 2021 14:03:26 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lWJdW-00067r-Ko; Tue, 13 Apr 2021 14:03:26 +0000 Received: by outflank-mailman (input) for mailman id 109815; Tue, 13 Apr 2021 14:03:25 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lWJdU-00061C-ON for xen-devel@lists.xenproject.org; Tue, 13 Apr 2021 14:03:24 +0000 Received: from esa6.hc3370-68.iphmx.com (unknown [216.71.155.175]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 345d3bb5-816f-421f-9baf-99c1469d0a13; Tue, 13 Apr 2021 14:03:22 +0000 (UTC) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 345d3bb5-816f-421f-9baf-99c1469d0a13 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=citrix.com; s=securemail; t=1618322602; h=from:to:cc:subject:date:message-id:in-reply-to: references:content-transfer-encoding:mime-version; bh=P7vZegBKQVl+IyYesoWXa6XMSoDS3GTeMrPPYL+vXSg=; b=NYTw2J3LXRIZgUv/X+cBV//HyHSuuqZxjKm+WumfmB2GeGypxKT711j0 AKzGYzqh7GVpXFT3MCzkXLVvi9DAq1yeXkKj8PvSvdaXoP03F6KSh0ZWu ZSzILfMEYhr7WWicmcRpTcxvH/VlpBAjcXjsL6tbQu/uUggvgJq1vwgG+ I=; Authentication-Results: esa6.hc3370-68.iphmx.com; dkim=pass (signature verified) header.i=@citrix.onmicrosoft.com IronPort-SDR: ReybT6KogXa0ELTILVm6G9a/Bu3uI0d3wWk4nXoA8A2cATtw0F9x3mOa/1VsVKZhl/gBI73nty 8HoGnVC/MZDz5vZ4IiviSZ87My8OcMveOk7G217r/9ToWVkjRYKnN9K6DIfpFYD/j1gNVPHe9Z 8jgH7gx6op+vAQ+vwf30NXc9+pq4IHAzNB74PUoH2atceXRWpCEh9Zk6qt4ulssXyk+j503UjK kJgixf5l3Jc8l1kI+b1JaAdA5T/R99l+5lHlZmKc9QMqWgMF8FKN+irXTQN6dw1iOtHxPcc4me oCw= X-SBRS: 5.2 X-MesageID: 41613969 X-Ironport-Server: esa6.hc3370-68.iphmx.com X-Remote-IP: 162.221.156.83 X-Policy: $RELAYED IronPort-HdrOrdr: A9a23:mdrh16o70XB3PVlHx5JIu4AaV5uuKtV00zAX/kB9WHVpW+SivY SHgOkb2RjoiDwYRXEnnpS6NLOdRG7HnKQb3aA4Bp3neAX9omOnIMVZ7YXkyyD9ACGWzIJg/I 9aWexFBNX0ZGIWse/T/BS4H9E8wNOO7aCvgqPkw21wSBxxApsA0y5SIG+gYylLbSNBAoc0E4 fZ29FOoCCudW9SQsOwAHQEWOarnay2qLvNZxkaCxk7rDSflD/A0s+GLzG0/Dc7FwlOz7Ar7H Tfn2XCiJmLnvmnxnbnpgnuxrtMnt+J8KogOOWtjYwvJizomkKUYu1aKsa/lRQUhM3q11owit nLpH4bTrROwlfcZHu8rxeo+ySI6kdW11bYxVWVgWTurKXCLVpQYaox5vMqTjLj50Utp9162q 5QtljpzaZ/Nh/cgD/7o+HBShACrDvEnVMZjeURg3ZDOLFuD4N5kIp3xjIxLL4wWAj+6IwhDd B0CtDd6Pt8YTqhHg7kl1gq79q2UnspGBCaBmAEp8yOyjBT2Et01k0C2aUk7zs93aN4b6MBy/ XPM6xumr0LZsgKbZhlDONEZcesEGTCTT/FLWr6GyWpKIg3f1b277Ln6rQ84++nPLYSyoEppZ jHWFRE8UYvZkPHE6S1rd122yGIZF/4cSXmy8lY6ZQ8kKb7XqDXPSqKT01ru9e8os8YHtbQV5 +ISdNrKs6mCVGrNZdC3gX4VZUXA2IZStcpttEyXE/LjdnMLqHsq+zHYNfeLLfgCl8fKyHCK0 pGeAK2CNRL70itVHO9qgPWQWnRdkv2+o81MKWyxZlX9KE9cql39iQFg1Ww4c+GbRdYtLYtQU d4KLT71oeypWy8+3f0/3xkUyAtSnp90fHFaTdntAUKO0T7ffIooNOEY11f23OBO1tZQ97JFh Vc43B647i+IZDV5S1KMaPoDkuqy18o4F6aRZYVnaOOoe3/fIkjM5ogUKttUSPRFxJ0ng5ugH xZaBANQ3LeEj+Gs9TnsLUkQMXkM/VsigaiJsBZ7VjFs1+HmM0pTnwHGwK1XdWvmgYoTTpMjl hX+6sS6YDw3gqHGC8auqAVIVdMYGOYDPZjAB6ebItZoLztZTp9VHyHnzCclhE1dFf77kl6vB 2TEQSkPdXwRnZNsHFR1ajntGl5cWiQZGpcQHF3u48VLxWMhl9DlcuwIoaj2WqYbVUPhtwHOD beeD0IP0dF3NasziOYnz6ECFQrzpgjJfbmEbwmar3fs0ndbrGgpOUjJbt57ZxlPNfhvqs3Su qZYRaSNy69JOUz2QCZz0xVThVcmT0Bq7fP1xLk5mTjgyJ6LvrWPVh8R7YUZ/ub9HPpQv6U0J N/yfI51NHARlnZW5qj8+XwaTUGFzb45UiRZMssoYpPva0zuKBodqOrGQfg5TVi5lEGMMzwlE kiW6x177DKB593c6UpCldk12tssO7KEVAivQP3CNIvZF0Bj3fUONWS/rrDwIBfdXGplU/VMV mb/zY1xYa8YwKzkZobAbk3O2JYdQwV72lj5vqLc+TreU+XXtAG2FqxKXmmdrBBDICDBLULtx 5/p/WFhfWeeSa9+Afeu1JAU+9z2lfiZcO5GwSXH+FUt/S8JFSXm6OvpPeJsw2fc0rzV20owa tfdUIRacxfij4tyK0PuxLCNZDfkwYCiFtR4TZui1j3/JOpiV2rRH17DQ== X-IronPort-AV: E=Sophos;i="5.82,219,1613451600"; d="scan'208";a="41613969" ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=eo2nELJLnbLtqD6I6ancgn3nd7+YlTZZVTaddpd9oxnERrmbPHy0ExxA/HImm8Csz3rwtzzi2lHHHDzHVn6MB+JdDOqylm5ioR/7J4O8++Lb6CiKgzG4mwyZmoM2Ou+mC+ga1VY5EgQYHHT/YiuZp0xgWWdQH5b/VgAroQErdN9maZ1XIs4WYKKVDpCYQSd9TLv3I0w46hh+h/0lFwEu6I+ZccWrpoNTHd3HGbopdoPEkv/3bnuKcKVcuJjWpQGbwMmseqSicMFQm/bFA6OKe3wIXtDKc/0c64uIfN2X17eRtMAfXruAvzrHWQBA8fyarOb5B6L3VCJYvdS6HnODeQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Dc+lsGkoLxXeZ9V8GLxDMIl6AZXl0djGMA3EPzv8W5U=; b=aXrjwAYxCXP8eATPEZNKVBZykfxtVTaeZW9mbzlElmpoX8YKrQKILNF6d00/nepdgSCoE4Beye1kmn0IxGMDPSrpvZWEOXgsi3JgAJkV9xRi++c1Py63/R5w83d9gWYSCzBRglvEQld+GHBtR+cZ0sBwnNPahge0XV3gwbDBfO6sTiHlyM6ssrULKhHq6+JaCM1tF424QQ4N6iZpinQ0F/UXaY9tzinC+61O8QfDe3hDN6h5pTPacFFl2/FSs3spP5FSMHpDpKk2RqmRHT4ReV43lCR8GEgxwPq3Q9uX4mR1AXFCakQu3pLpmCZhDiS/2c7mC4C1MwRlt/QrYK0NGA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=citrix.com; dmarc=pass action=none header.from=citrix.com; dkim=pass header.d=citrix.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=citrix.onmicrosoft.com; s=selector2-citrix-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Dc+lsGkoLxXeZ9V8GLxDMIl6AZXl0djGMA3EPzv8W5U=; b=VB/wgPdfL35wxlNKEjcNSClsN1dgRQbUZRyt/tvktA/sEeFL0PPf4TS7INl6N/NWCCyslkC9Ur0FbebfStqn8kgGm8vCpF303O3PPARg1PmRqSOesB+Wsu5TTrdgQcex0DzCmh0hVZXHQFEL/vBjqsiF9biR4Kw+NFQ6Zxc5gE8= From: Roger Pau Monne To: CC: Andrew Cooper , Roger Pau Monne , Ian Jackson , Wei Liu , Anthony PERARD Subject: [PATCH v2 15/21] libs/guest: obtain a compatible cpu policy from two input ones Date: Tue, 13 Apr 2021 16:01:33 +0200 Message-ID: <20210413140140.73690-16-roger.pau@citrix.com> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210413140140.73690-1-roger.pau@citrix.com> References: <20210413140140.73690-1-roger.pau@citrix.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: MR2P264CA0093.FRAP264.PROD.OUTLOOK.COM (2603:10a6:500:32::33) To DS7PR03MB5608.namprd03.prod.outlook.com (2603:10b6:5:2c9::18) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 958eb659-fce2-4b33-c0b1-08d8fe84e4b4 X-MS-TrafficTypeDiagnostic: DM5PR03MB2553: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8273; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DS7PR03MB5608.namprd03.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(366004)(376002)(136003)(396003)(346002)(39850400004)(8936002)(6496006)(186003)(83380400001)(107886003)(38100700002)(2906002)(66476007)(86362001)(956004)(2616005)(8676002)(478600001)(66556008)(66946007)(6666004)(6486002)(16526019)(316002)(6916009)(36756003)(54906003)(1076003)(5660300002)(4326008)(26005);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData: =?utf-8?B?SWkyV200ajQ3Z3BYS0RESWFWbGYzeUpUc0VwZFhOQnR0TWcwajN2RjNmQ3NI?= =?utf-8?B?YTJzM0ZnV3BXZ3ZUZXhMZGtlTzcrOWozQmxWSC95T2FvRHdESVVTaVA4bXg2?= =?utf-8?B?QkM2UldhODMwUytDbE5ob2RnRU4yZ1JJbUx2RldKVzhTOG45eGNwcmFpQ1RV?= =?utf-8?B?QXFrT2xTREp2bElNblpUeWV5V3JXVEduVk9neHhaYjMvVWhOS1E4UGVWc1Zo?= =?utf-8?B?MWpKU2QybFVzVWpHWVEvWXBvaTV6ZWlvWUNWRjhyc3FscHY5OUVRTFB6bkRI?= =?utf-8?B?OEluOW5iWmpLT0lpKzJZV25wQ1hTcHNBNWp1c3QwR2JjNjYzRzBUcWI4anNR?= =?utf-8?B?Z3E2a3VkOFhpMGJnRlhOV3ZwZ2VQNHpJM1BTa0ZrUTU0c3lHQW1GT1JabStw?= =?utf-8?B?Syt1OEdpemFkYnFMdUdBUThleksyTFp0WWFzQ3NJMjNqbWVla3gxMytEL2w5?= =?utf-8?B?U1U3ZEU5ZXF3WTJuR0lPU01HazVsTXl6RzNBQkxzRnNzYWpwcHlOOVR1SnNT?= =?utf-8?B?NGVQUmF4SGE5djl6a1hPY0hqdDVqYnNwdDdxOHlYQXZlbk10L0p3endGZGhD?= =?utf-8?B?NDFPS2dVZ1BGQTRnTkVKRUV4WVMvUU5RMDFPeUI4VGVLZTZzSTZ3SE04czU3?= =?utf-8?B?dFNGR2VvdnhwQTBEU1ZhajFXRE1KdUN4SVpBbTJJWE0yVHYxRy8veVR1UkdJ?= =?utf-8?B?ck41M3ltV3M3dkpFOTBvbEFXWHZZU0t2N1ljWUZwbG5JZ3ZDbUNGcEdIcDFC?= =?utf-8?B?OEpSSFdPWlJHVEFmTHFyY3Z1UUE2UjBTdXhHTG9qb29raW1nMDVTLzNWWi8r?= =?utf-8?B?QWlHQXNwMHRuVWtMR2JtSkcvVWtlRUNQUmVqSTQzZVVRYW5aTmh0RkZoQ21B?= =?utf-8?B?RmNQL0dsVlpHVXk0bXNpaVNqMnd4NUYxSHB5anpzaEtKK2dpaFFiOG0ybWN2?= =?utf-8?B?cWM3RVlqcjNTc2JVdXFLcUZpcGxRWHdiM3JQSEtZRWFBSmVwb1pPdGFKVkxp?= =?utf-8?B?OTIyM3ZrcmNtQzFPdE9Oa2wwQUp4dGlOOURWekpReWdTcHBSaDY3RXRsYkJz?= =?utf-8?B?aWRoUkdOYzBGQWVBeCtEY3ZxUnZmRU1XNFhEbFlxR3RYQ1ZQYS9rUTlQQWQ4?= =?utf-8?B?QXVwbENhVWM2V3lVT3VIRHY4SjFxZTdZUmphd1pnc2hWMnhLTUlubnFvOGZN?= =?utf-8?B?MFF2TVhLY0gyTG5iZGlCNEJyQ1Q0aGVxMlhBbFpEVllyR1RWMDgrZHUzTVo5?= =?utf-8?B?RTNyZ01kci9iVzVqcDgxQlpXQlBtRzVQMGExUzlQZVlWQW5aZ0RqbDhYZXRH?= =?utf-8?B?MisxT1RyQ3lLZDE3RGdPRGxPeVp6S3FPT09lbEEyK2hJVjVSMEpBeUNOWGV6?= =?utf-8?B?akVVZ2k5NUtyczlnRS82bU5VSUlzUVVQblhnTmNjeU5VUFlNVFBBYXo2K0I5?= =?utf-8?B?SmhHcHJpSUg0OE1RdDJxOGppK1pkOWkwWi83TllTT09SekpjL0N5OE1oUXFX?= =?utf-8?B?aE1IUlByR1dObGZMNUw3OWM2eXV2UHZqNjNwZHBzQytnUW93QW96M1BmSm1m?= =?utf-8?B?QmN4MGZQQlpvRHREbFllbVJ2ZjFSRytzTEQyY3RFYk1vSlNzR0c3OXdmTEVQ?= =?utf-8?B?VlNIMm5zRUFzRlJkdzVUS2dpaUgyVyszYTFmWVVPb09GK0M5V2VpVDBMaVlp?= =?utf-8?B?TFp5NFdvOFNpMDVNVUVodUZ0M01FYi8zRWxwYnlRMmZralAyMVRBUE4wVmFh?= =?utf-8?Q?L8/XkFzxGzS0YAsUtiARm8oL/WAtasqor+yCJLw?= X-MS-Exchange-CrossTenant-Network-Message-Id: 958eb659-fce2-4b33-c0b1-08d8fe84e4b4 X-MS-Exchange-CrossTenant-AuthSource: DS7PR03MB5608.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Apr 2021 14:03:20.0448 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 335836de-42ef-43a2-b145-348c2ee9ca5b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: r03MpPPP20qqMRWRm0h/hzzMKozKy009boBr8Z4xv4OLfHsYAI/INAM4ItL2CsXTnvJwIcPsHrT4W/9qDTCbxg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR03MB2553 X-OriginatorOrg: citrix.com X-ZohoMail-DKIM: pass (identity @citrix.com) Introduce a helper to obtain a compatible cpu policy based on two input cpu policies. Currently this is done by and'ing all CPUID leaves and MSR entries, except for MSR_ARCH_CAPABILITIES which has the RSBA bit or'ed. The _AC macro is pulled from libxl_internal.h into xen-tools/libs.h since it's required in order to use the msr-index.h header. Note there's no need to place this helper in libx86, since the calculation of a compatible policy shouldn't be done from the hypervisor. No callers of the interface introduced. Signed-off-by: Roger Pau Monn=C3=A9 --- Changes since v1: - Only AND the feature parts of cpuid. - Use a binary search to find the matching leaves and msr entries. - Remove default case from MSR level function. --- tools/include/xen-tools/libs.h | 5 ++ tools/include/xenctrl.h | 4 + tools/libs/guest/xg_cpuid_x86.c | 128 ++++++++++++++++++++++++++++++ tools/libs/light/libxl_internal.h | 2 - 4 files changed, 137 insertions(+), 2 deletions(-) diff --git a/tools/include/xen-tools/libs.h b/tools/include/xen-tools/libs.h index a16e0c38070..b9e89f9a711 100644 --- a/tools/include/xen-tools/libs.h +++ b/tools/include/xen-tools/libs.h @@ -63,4 +63,9 @@ #define ROUNDUP(_x,_w) (((unsigned long)(_x)+(1UL<<(_w))-1) & ~((1UL<<(_w)= )-1)) #endif =20 +#ifndef _AC +#define __AC(X,Y) (X##Y) +#define _AC(X,Y) __AC(X,Y) +#endif + #endif /* __XEN_TOOLS_LIBS__ */ diff --git a/tools/include/xenctrl.h b/tools/include/xenctrl.h index 5f699c09509..c41d794683c 100644 --- a/tools/include/xenctrl.h +++ b/tools/include/xenctrl.h @@ -2622,6 +2622,10 @@ int xc_cpu_policy_update_msrs(xc_interface *xch, xc_= cpu_policy_t policy, /* Compatibility calculations. */ bool xc_cpu_policy_is_compatible(xc_interface *xch, const xc_cpu_policy_t = host, const xc_cpu_policy_t guest); +int xc_cpu_policy_calc_compatible(xc_interface *xch, + const xc_cpu_policy_t p1, + const xc_cpu_policy_t p2, + xc_cpu_policy_t out); =20 int xc_get_cpu_levelling_caps(xc_interface *xch, uint32_t *caps); int xc_get_cpu_featureset(xc_interface *xch, uint32_t index, diff --git a/tools/libs/guest/xg_cpuid_x86.c b/tools/libs/guest/xg_cpuid_x8= 6.c index bd2f31dd87f..6cfa4cb39d1 100644 --- a/tools/libs/guest/xg_cpuid_x86.c +++ b/tools/libs/guest/xg_cpuid_x86.c @@ -32,6 +32,7 @@ enum { #include }; =20 +#include #include =20 #include @@ -944,3 +945,130 @@ bool xc_cpu_policy_is_compatible(xc_interface *xch, c= onst xc_cpu_policy_t host, =20 return false; } + +static uint64_t level_msr(unsigned int index, uint64_t val1, uint64_t val2) +{ + uint64_t val =3D val1 & val2;; + + switch ( index ) + { + case MSR_ARCH_CAPABILITIES: + /* + * Set RSBA if present on any of the input values to notice the gu= est + * might run on vulnerable hardware at some point. + */ + val |=3D (val1 | val2) & ARCH_CAPS_RSBA; + break; + } + + return val; +} + +static bool level_leaf(xen_cpuid_leaf_t *l1, xen_cpuid_leaf_t *l2, + xen_cpuid_leaf_t *out) +{ + *out =3D (xen_cpuid_leaf_t){ }; + + switch ( l1->leaf ) + { + case 0x1: + case 0x80000001: + out->c =3D l1->c & l2->c; + out->d =3D l1->d & l2->d; + return true; + + case 0xd: + if ( l1->subleaf !=3D 1 ) + break; + out->a =3D l1->a & l2->a; + return true; + + case 0x7: + switch ( l1->subleaf ) + { + case 0: + out->b =3D l1->b & l2->b; + out->c =3D l1->c & l2->c; + out->d =3D l1->d & l2->d; + return true; + + case 1: + out->a =3D l1->a & l2->a; + return true; + } + break; + + case 0x80000007: + out->d =3D l1->d & l2->d; + return true; + + case 0x80000008: + out->b =3D l1->b & l2->b; + return true; + } + + return false; +} + +int xc_cpu_policy_calc_compatible(xc_interface *xch, + const xc_cpu_policy_t p1, + const xc_cpu_policy_t p2, + xc_cpu_policy_t out) +{ + unsigned int nr_leaves, nr_msrs, i, index; + unsigned int p1_nr_leaves, p2_nr_leaves; + unsigned int p1_nr_entries, p2_nr_entries; + int rc; + + p1_nr_leaves =3D p2_nr_leaves =3D ARRAY_SIZE(p1->leaves); + p1_nr_entries =3D p2_nr_entries =3D ARRAY_SIZE(p1->entries); + + rc =3D xc_cpu_policy_serialise(xch, p1, p1->leaves, &p1_nr_leaves, + p1->entries, &p1_nr_entries); + if ( rc ) + return rc; + rc =3D xc_cpu_policy_serialise(xch, p2, p2->leaves, &p2_nr_leaves, + p2->entries, &p2_nr_entries); + if ( rc ) + return rc; + + index =3D 0; + for ( i =3D 0; i < p1_nr_leaves; i++ ) + { + xen_cpuid_leaf_t *l1 =3D &p1->leaves[i]; + xen_cpuid_leaf_t *l2 =3D find_leaf(p2->leaves, p2_nr_leaves, + l1->leaf, l1->subleaf); + + if ( l2 && level_leaf(&out->leaves[index], l1, l2) ) + { + out->leaves[index].leaf =3D l1->leaf; + out->leaves[index].subleaf =3D l1->subleaf; + index++; + } + } + nr_leaves =3D index; + + index =3D 0; + for ( i =3D 0; i < p1_nr_entries; i++ ) + { + xen_msr_entry_t *l1 =3D &p1->entries[i]; + xen_msr_entry_t *l2 =3D find_entry(p2->entries, p2_nr_entries, l1-= >idx); + + if ( !l2 ) + continue; + + out->entries[index].idx =3D l1->idx; + out->entries[index].val =3D level_msr(l1->idx, l1->val, l2->val); + index++; + } + nr_msrs =3D index; + + rc =3D deserialize_policy(xch, out, nr_leaves, nr_msrs); + if ( rc ) + { + errno =3D -rc; + rc =3D -1; + } + + return rc; +} diff --git a/tools/libs/light/libxl_internal.h b/tools/libs/light/libxl_int= ernal.h index 44a2f3c8fe3..5709bcb93fa 100644 --- a/tools/libs/light/libxl_internal.h +++ b/tools/libs/light/libxl_internal.h @@ -126,8 +126,6 @@ #define PVSHIM_CMDLINE "pv-shim console=3Dxen,pv" =20 /* Size macros. */ -#define __AC(X,Y) (X##Y) -#define _AC(X,Y) __AC(X,Y) #define MB(_mb) (_AC(_mb, ULL) << 20) #define GB(_gb) (_AC(_gb, ULL) << 30) =20 --=20 2.30.1