From patchwork Tue Jun 27 15:08:24 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tom Lendacky X-Patchwork-Id: 9812373 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6A83A60351 for ; Tue, 27 Jun 2017 15:10:43 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5E74F286BC for ; Tue, 27 Jun 2017 15:10:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 52953286C3; Tue, 27 Jun 2017 15:10:43 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 91851286D4 for ; Tue, 27 Jun 2017 15:10:42 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dPs6V-0007bq-5E; Tue, 27 Jun 2017 15:08:35 +0000 Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dPs6U-0007bO-72 for xen-devel@lists.xen.org; Tue, 27 Jun 2017 15:08:34 +0000 Received: from [193.109.254.147] by server-11.bemta-6.messagelabs.com id 14/16-03587-1F472595; Tue, 27 Jun 2017 15:08:33 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA1VSa0gUYRTt252dHc2Jz13N25CZa+GD1rJCJAw K/GFQi1n9UIgcc9wd2Ifs7Jb9EKTMDUESpcRVVnfNHlqYCllJQuJGipqpbA8p7EGGIGkFJiY0 s+Or79e599xzzv3gUkqNi2QortjB2a2sWUeGEqa9iQb9nCM7Z1/tJJN2a76ZOIIy/T1LiiyUq +Kt+bbiPJUp8G0YFfnji39MlRKlqDW2AoVSBC5TQs2ID0kFwjUIHrypVkqFBpcr4MO3K2QFCq FIvAcCs78VEtbi0/BlcZmQcARuUsDnm1gSKPEsCb0jQ0GBAm+HJl+LUsIE3g3e/kAQ0zgTfnp GguIQfAwabwSCphqxP7T4TC3hSLwD7o2XqeT5cBio+yrOU2JAIrQ/3Su1lTgGumcbgpaAd0L3 wgIp7QDYhaB7zkPKnrvA/WtULQ9Fg3+4gZDxCRidrldLnoDjYLDMILdbFDDffFT2qSThmrcOy UQS+O4srgR8VoN36clqoYJZ/1VCLh4RMDDiXdnJDJUvXpIyLoHbvr8rawypYHnZIQumw+FVdR uqQnr3hq+617/q3vDVJqRsRQkCZ7/A2fUp+5Pz7bzR5LCwvFmfsi812cIJAmvkzGy+kHzeZul E4lVsEt9jNN6R1Ye2UQpdJN0G2TmaLfm2gksmVjCdszvNnNCH4ikK+/yXTzGE1WbldEBrxUPS hNs5I1dcyJvFK1udBCpMF0EHikSaFopYi8AbZWoQxTJRtEsQCSwRJqd1TbZ6n2MomtHSSNxJE 1bE2S28439+BkVRSKelvZJLGG91rLnPiMEKMZjwZEnBDnadYkpR2uaDE0v3G9sb+g2TdbmDrV FdBQ53xsRwxYLR8xDUfLSr58/hv99LMqqufKHd72fCPmoye+smDt2pP944l2BJXy454Kpl3l1 v7jw7VpBengsez5T7jP41z0QaUp9/dPYZSGcXWx8z2pGc/SlvfvLk260J06UXp0yFab2qu3GM jhBMbEqS0i6w/wA8wecLmgMAAA== X-Env-Sender: Thomas.Lendacky@amd.com X-Msg-Ref: server-11.tower-27.messagelabs.com!1498576111!79155054!1 X-Originating-IP: [104.47.41.78] X-SpamReason: No, hits=0.0 required=7.0 tests= X-StarScan-Received: X-StarScan-Version: 9.4.19; banners=-,-,- X-VirusChecked: Checked Received: (qmail 15639 invoked from network); 27 Jun 2017 15:08:32 -0000 Received: from mail-dm3nam03on0078.outbound.protection.outlook.com (HELO NAM03-DM3-obe.outbound.protection.outlook.com) (104.47.41.78) by server-11.tower-27.messagelabs.com with AES256-SHA256 encrypted SMTP; 27 Jun 2017 15:08:32 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amdcloud.onmicrosoft.com; s=selector1-amd-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=5KdJxKL+w6r2KAuqTqr9kxwekL5aj4U8wWEp9DorKWw=; b=SYT26ulaGY1DoYzr48VxVBLEKwI4p1E+SV2BVoibciEqHQhl9rnlGdW8MTmR1B8fQWMEghpE/N/bM5w4luGeXoNMhVoBEHKZKMNz69JPpPZvGlfh8pKw3GbVb8um179ik4EPLzKSzILDTQbDXihrQ0ale8/R1Auj8WZz0nzFQts= Received: from tlendack-t1.amdoffice.net (165.204.77.1) by CY4PR12MB1141.namprd12.prod.outlook.com (10.168.163.149) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1199.15; Tue, 27 Jun 2017 15:08:29 +0000 From: Tom Lendacky To: linux-arch@vger.kernel.org, linux-efi@vger.kernel.org, kvm@vger.kernel.org, linux-doc@vger.kernel.org, x86@kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, xen-devel@lists.xen.org, linux-mm@kvack.org, iommu@lists.linux-foundation.org Date: Tue, 27 Jun 2017 10:08:24 -0500 Message-ID: <20170627150824.17428.98358.stgit@tlendack-t1.amdoffice.net> In-Reply-To: <20170627150718.17428.81813.stgit@tlendack-t1.amdoffice.net> References: <20170627150718.17428.81813.stgit@tlendack-t1.amdoffice.net> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-Originating-IP: [165.204.77.1] X-ClientProxiedBy: DM3PR12CA0053.namprd12.prod.outlook.com (10.161.151.21) To CY4PR12MB1141.namprd12.prod.outlook.com (10.168.163.149) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 92b9f764-2292-4256-8dea-08d4bd6e5ef8 X-MS-Office365-Filtering-HT: Tenant X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(300000500095)(300135000095)(300000501095)(300135300095)(22001)(300000502095)(300135100095)(48565401081)(300000503095)(300135400095)(201703131423075)(201703031133081)(300000504095)(300135200095)(300000505095)(300135600095); SRVR:CY4PR12MB1141; X-Microsoft-Exchange-Diagnostics: 1; CY4PR12MB1141; 3: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 X-MS-TrafficTypeDiagnostic: CY4PR12MB1141: X-Microsoft-Exchange-Diagnostics: 1; CY4PR12MB1141; 25: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 X-Microsoft-Exchange-Diagnostics: 1; CY4PR12MB1141; 31: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 X-Microsoft-Exchange-Diagnostics: 1; CY4PR12MB1141; 20: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 X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:(125551606395959)(133145235818549)(236129657087228)(767451399110)(148574349560750); X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(100000700101)(100105000095)(100000701101)(100105300095)(100000702101)(100105100095)(6040450)(601004)(2401047)(5005006)(8121501046)(3002001)(93006095)(93001095)(10201501046)(100000703101)(100105400095)(6055026)(6041248)(20161123558100)(201703131423075)(201702281528075)(201703061421075)(201703061406153)(20161123564025)(20161123562025)(20161123555025)(20161123560025)(6072148)(100000704101)(100105200095)(100000705101)(100105500095); SRVR:CY4PR12MB1141; BCL:0; PCL:0; RULEID:(100000800101)(100110000095)(100000801101)(100110300095)(100000802101)(100110100095)(100000803101)(100110400095)(100000804101)(100110200095)(100000805101)(100110500095); SRVR:CY4PR12MB1141; X-Microsoft-Exchange-Diagnostics: =?utf-8?B?MTtDWTRQUjEyTUIxMTQxOzQ6MW42M2FmNFlrR1ZCRDBNb25lam9jWDNUNmVa?= =?utf-8?B?dHk5RkdTeXRFNmdKbmIybDBvekRaRHR6THlHdWxwUHR3K1ZMS0I0c1JkSjFR?= =?utf-8?B?UCtIVHA2UkZoNG05Zy9xbTQxRk80N1NodERYYk1ld1JKWkVlVU9Ob21qeHVq?= =?utf-8?B?ZHZJRmxBR05nQ1d6L3dvTDVIR2JMRnIwclBCNkcwQTlWcnl0VUpZbTdIMWs2?= =?utf-8?B?ZXZSVFJjYzcwSU5sclcwWm9EMFhsbk9rNW5aVGlYR1Vuam1Cb09VU0dKNHRo?= =?utf-8?B?UVp3VDd5YUNRTWUrVEovUjJqU2pkN3hKZ2ZYOWVIMXVjSnBrbFpkWGlQdTFO?= =?utf-8?B?NlRBcGNhMncwa0dFVFkvYjVjSHNUaXlxSzAvcmVXSEtQNUJ3Zy9ta1FYUzVn?= =?utf-8?B?L0R6ZTQrUkZmaHVMUGU1UnF0QXMza1cxMEVNL3c4dHpPUlBGZzl6SWpoc2ZL?= =?utf-8?B?cGxGaUhSQi84MUdoMEZJR0pCdVJXVmdRb0p1K3NOV0FrVE9DYmxWYll3OXow?= =?utf-8?B?aENFR2tJeXp6U05XUVFUcWlGdEhZMWh6WWF6ZCtQSndtNDRaMHFzMDFzZTg1?= =?utf-8?B?K2E2cWNEZHk2Y2tQL3JvdmJrSHlHRkRvNURXc2FvTjliM0JlSG5TQU85ZHV3?= =?utf-8?B?cW40ck1VMS9UT093bDhUNWRXczdlcmRNNmRSTXdiclp4QURRQTJ4R3FISjk3?= =?utf-8?B?NURKWVdFbWExYXY4a3l2VGhvQ1E5OXUwK0hRbGczVFYwOHVYODNWNjBRcGZ0?= =?utf-8?B?Uzl1WGpLV3l1UlVmbmNpaWRjaXJIZ0lleEs1RXZ2VnBEV0JTSk8weEJvcmth?= =?utf-8?B?Ym50RHRNOVEyYTZydzlCU05rTGRlcDNsbDBPWmdZZGRYcjdRSmp0d1FtdXdE?= =?utf-8?B?T2lUWWNocmloM2lOS04xdEl1Q09jWWhtVHpxYTZZK0F2WEg0K3Bkbk1KYVR2?= =?utf-8?B?eTNsUVgyYi92UjVWczdTOGVwV0xFYk9JZy9SZHozMU4raHByeTFObmo0U1Qz?= =?utf-8?B?NkdTdkhmeEZtN3l1ZDZZd2FUMjdZamVjaGxpa2h1a3RyZjNVQWlucTJiSURZ?= =?utf-8?B?Z3I5V0VwTDM1enRLaURjK0ZQYngrdERxVHJWTTh3c1hsd2pZS3NRUmxPcG5z?= =?utf-8?B?S3lzY3p6VDBvTU9YK29rOXZuU0oxNFI4YkF4cFR2Zmd0WHVRTi9FNitIM1Js?= =?utf-8?B?dkhlWnFFRTNhQ3dabDhGRm1jRDE4a0RiMDM1eUljdlhQdzl6aWhNWDdJaVdX?= =?utf-8?B?VGo0L2ViMklYK0ZYMHh4SDNxdGlSQnd4Q2plMEZ3L3ZQbklYRWI1SUliTUxn?= =?utf-8?B?VUVVM3d4K1ZYK1MyM3NYbGNlcklITitTbnFtYXJBRnRYOHBONkNMRmZxLzVh?= =?utf-8?B?RUttaTUvZHcySUk2SEhMMXFQNGg5clhzbi9VRnFaVEwzOEgyV1JOc3NMdWFC?= =?utf-8?B?QkpuSXcvdmViMWkvWjlnVkljTzNnYTdITlJqdEUrR2ZuY2UrSTEzdzNBK2tl?= =?utf-8?B?LzZmOUo0amFTdjhnZFUxZTB6WFBvTlUrVVdGbDFtNWRwK0JQWTQyRVBuRFRi?= =?utf-8?B?OC9WVVJTV05PM0g1S0duSVFIRUFGOU5OSEZYZmVnZ2hyYU5BYkx1SjZwMUFp?= =?utf-8?B?N1BkZDFldERzVWlMVXZwbFZoMU9kMFV4czM1OUFDZUk4dThrMmp2TzAxTUtC?= =?utf-8?B?cFFBejdLOVpMRXZYZnYrbVlEdXU3RjdiWlBUWGhocXRmZW43MVlyWUdOb0o3?= =?utf-8?B?cXdzdzF3RG9hTGEwdW1GWm1uNExlaEZZV1VoSUJRdDh2dnlZdTdZQWxvaGRN?= =?utf-8?Q?Vqy3ll23gyzT?= X-Forefront-PRVS: 0351D213B3 X-Forefront-Antispam-Report: SFV:NSPM; SFS:(10009020)(4630300001)(6009001)(39840400002)(39400400002)(39450400003)(39410400002)(39850400002)(39860400002)(103116003)(53416004)(97746001)(47776003)(42186005)(66066001)(50466002)(72206003)(81166006)(33646002)(7736002)(86362001)(7416002)(7406005)(6506006)(5660300001)(305945005)(23676002)(8676002)(53936002)(9686003)(55016002)(2950100002)(6116002)(54906002)(6666003)(110136004)(38730400002)(76176999)(2906002)(54356999)(83506001)(3846002)(50986999)(4326008)(1076002)(25786009)(189998001)(230700001)(4001350100001)(478600001)(921003)(1121003); DIR:OUT; SFP:1101; SCL:1; SRVR:CY4PR12MB1141; H:tlendack-t1.amdoffice.net; FPR:; SPF:None; MLV:sfv; LANG:en; X-Microsoft-Exchange-Diagnostics: =?utf-8?B?MTtDWTRQUjEyTUIxMTQxOzIzOnpZS0xRSFRudXdHVlM3YlRid1RURkM5YTVr?= =?utf-8?B?WjZrb2duSCt0a3I0aUVJZ3BvdmhsV1l0NEo5cVNwR2tldVgvb01adzFtSENh?= =?utf-8?B?WTMxVGh2cHpMa0JmTmp3OXpjaVdSRU9ac1JEcUV6VSs4WXZROWJ2ZFJHNnpU?= =?utf-8?B?djFmQ05RVXloUkx2bm5QMXdSQkd5Y09ucEFCWFpEeXQ0b1IzQkFRYXJIZFo3?= =?utf-8?B?UU96UGM4MzdqdUVlVGdlc3k4ZnBBSlRPd0lPbklXdUtEbkZ5NVdja0cwblY3?= =?utf-8?B?RlJEc0pCU1EwbXpIV0thR3JVdWp5ODJwd2s3RUtDN3dhRnd1OEU1SFk4N1Vq?= =?utf-8?B?UUJJelBkcnlDV2FuNWFIOUdqT29zMzRTUjFLK1NvMG9qL3A5anUyUUU1SXVa?= =?utf-8?B?QTFiVjR3S1ZlNCtvVEpOUWlTTXAycWpLUCtqUWdCTU1Zblh2RDNkYzAyMjJG?= =?utf-8?B?eE8yRFNsOExJNCt6Z05uSDAwYVk3djR4NTV2Rk54akZUTGZWZytENGR0K04y?= =?utf-8?B?NWdaRjdIa0lLajBBY3BWTkdwSWg0MGxLRTVPdlAwdmNyME1sSDkyKzBvSzJL?= =?utf-8?B?R25wQTVxQWxmc3ZOOVVDRFZERzdxSzdhdGR1eHdnOWRzU1hyeTBHREI3RnBY?= =?utf-8?B?UjNiMEwxNzQ0UjNiYlJWSkpnajlGUWNmS2NkSUJKNlhlSldGZnBNaHN0TVdW?= =?utf-8?B?cmZScVE4MlVQTVdXRDNtTkdyd2Y4NVhybWRRZVZvVlJFcXZrWkxXcStKVmNq?= =?utf-8?B?MmVBa2hIcFd4ei9obVdUb09oOXBwNGFqZ2VnSFlJalRNbEhJZmVsWEZIME1G?= =?utf-8?B?a3NVUUtBU0V1eUJsMzQ5MHFzMmpVUzlSMm1YWVIzaEVoZEhGdXdCcUtEQUgv?= =?utf-8?B?eTMvdUpsV3AvVEwyelA5bXNkU0RFbzB4a1o3dFB0MXEzaTE5dmFEdHI2eWlt?= =?utf-8?B?eTlwaWZPc1ZhNEFhSzNxSEdwTG5kbC9KT0pRMlVHUStUcUdIVjFiVXJBL3BU?= =?utf-8?B?R2s4RWI2UVhGQ3dEaXhaeUpZc0Fld2t2dXp2T3VjdnVVSkRrc25IVzdNRGhx?= =?utf-8?B?dnhUTlhxdUwwaHVPdlFBSjgxWW9lUFViWHJLanBzcU9PaFJDRi82WFJrUmor?= =?utf-8?B?WHYwYjgrQ0JvNnRVenpUa2s1TkRzR1VsS0hNNUJ3elZqc0UyL1g2dUl1T3hl?= =?utf-8?B?d2pIRzlIVDdINXdUbmUvMHJRNDdabVk5ZWMxbzNkcUZaK3RoT2pxQmZQQ24v?= =?utf-8?B?TXFBc2NBTVpLM1AxeUIvZ0hzTXVrNm5jdVVVcE9YZDI3SmUxWGhmZlNLOFFj?= =?utf-8?B?aWdHc2F0VkNkbkNsTEZZS003TFFZYjhaTFh3TU1NbzJmNEVVSC9zb3N5VDlq?= =?utf-8?B?RmZBMVZtakYvS2NjUjViRkRSeGdXL1ZDSnp3SklkeXNiODM1UFZHMnpLUHp1?= =?utf-8?B?ckhBSyt5WE96VWZ5M0dnUXN0cVpDVEVodkNkNkFIQUdNUFg4UVkyUFZYNWdG?= =?utf-8?B?eEZ1MmhQc0ZQZ3dGZ0ZtcVFUeUJ0NXM4K3BxaVZFdXpscnJoV3U3Y3Z1M0Yw?= =?utf-8?B?MlFwdG9tcjFyMnl4TjlOdGYvL3VycFVFTTdmb3JwOUNSaW0xcjZoOEFERlZO?= =?utf-8?B?NGlNaTdyQy9lZFVKdnNpZi93c05iTTUvZWR3Ulk3bEh5NDJDQUN5OTFhZmhL?= =?utf-8?Q?zSxKzTwkLhykMQ6qtE=3D?= X-Microsoft-Exchange-Diagnostics: =?utf-8?B?MTtDWTRQUjEyTUIxMTQxOzY6cVJoKzFVcUJsV0pMblArRVEzKzl0VTN0YU9V?= =?utf-8?B?U1lJUHMyQlJ5aVN1TWljSS9mdVFHK3R6TU9qRjBRR1JmWlhrd2hSdWdDZzF5?= =?utf-8?B?WVFPWm9ScmZTUFAxSkkzUGJTWkMwRm1HdGFIM2hjdHNLNU9PZDRlVGs2aEEw?= =?utf-8?B?MHlFdW9qTWNkTDA1dGNWWmJPakpDeGNEWkNpVDg4ZDhnbm5UbjdHd3RxbHIz?= =?utf-8?B?bUJuV2FTRVFodFA4SzRjbWJDaDNCSzk0QnFWNzlJNnRKNDI3RWVWWWM2ZHNm?= =?utf-8?B?SXkvZURuMjJYU2Z4MlExa2tCL0ErV0tYV2pvbFBGbXRYVXNwTmNvMWlNWU1h?= =?utf-8?B?WEJOZGdpTkxkR1JXakN0Um1lUlgrd3pBVHM5RTVrTEpsMFNBMFRMQVROQy9G?= =?utf-8?B?Q3QwOGpBNFExaHoyVzllOTN1ODBNVXhJNDMyYmhPMjlIZjU2dUVCZHE4NSs2?= =?utf-8?B?MGFyNkRyU1VtTE1zc2FwVXhCdTNUN01hTnFiWERsUXdncU1SSkFlRTlnMHdP?= =?utf-8?B?VUFkTS9KNU9RdTRjbUJwNWJCKzA4Z05ES0hmdUJFMkkxeHpFbHNRejZNY3Fp?= =?utf-8?B?L256bnIxbXN5dXdzdmcvcUsvK2kwb2FVOGFJSjFncWRaMTVWYjB0d3IyekdE?= =?utf-8?B?ZEdFS2ZxZXRnU0FTMG8zQ0tDN25wOTUwWXk0Qzg0UklRL1N3Z0FTK0ZqU1Iz?= =?utf-8?B?VGtiU2lZaThWUFBjL3ZSN2FKUzdsQUNMNDVCODhSUVAyMkhwdFJVaEZHRWFR?= =?utf-8?B?YzViL0JRampiLzk1Z3N6WWQ4TW5ZbzlpNXFtUFhqYXdKWGVTWkRLTCtwUTJr?= =?utf-8?B?cmRMVEFyV0R4WXVjZmNuZVordGMwNFVGUDVNRnpLdnY4VVpoYWhBMkJaRFR2?= =?utf-8?B?eTl3YUNIQS9WL3MydUp2Wk9TWTlIK1d2clMrckVma3pOWUZ0anNVOWpzejE1?= =?utf-8?B?c2dYeVVtQlViTStlYWxhVU9mMzRQZkJOUVVPSFFnRWtFZEU4TmJSZW9tOStH?= =?utf-8?B?bTNSSmdoMlY2RCtSNVVrZmVKOGdONEJoVEhJNTVQRldocnV2YXRDdzZxd2ls?= =?utf-8?B?N0t2NlVmT2xmNHF2OE1pMFU4SnNCWTRNNWN1Y1BQa1FYQ3dkazJJK3NjWVpa?= =?utf-8?B?MTgrUE9iTGJsNjBmTHpsak1aR0dxZXBSRFF5M2h3TEZ2K1VyY3FRMGhVQjhY?= =?utf-8?B?N0dNUUF3WUc2UnlldnlLWklwT3pHaFdqdE5SN2I3WXZZbVcwQ3Fob01ZMVlM?= =?utf-8?B?WDdxUHRZcTh2ZjdxMzBEZVpaNWV5aFF4NDN3dXJsOTN0Vkx6V0JJTWNBcVlR?= =?utf-8?B?L0QvYm5mcjVYdUpxTFMranlXNzJnRk4xbVN6SThxY0ZkOUJqSmhURi92cWRL?= =?utf-8?Q?i07bm4z?= X-Microsoft-Exchange-Diagnostics: 1; CY4PR12MB1141; 5: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; 24:8+v6KJj0Ff3RSv+FHei8OWjinj0e+u9tv6os18FvlS4NuuDpc4Ven4Z8/eiFlEhea7ZXOX3GoVRVwC656vgq8Q5/fRNd9fIdQ/rZBR22nZo= SpamDiagnosticOutput: 1:99 SpamDiagnosticMetadata: NSPM X-Microsoft-Exchange-Diagnostics: 1; CY4PR12MB1141; 7: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 X-Microsoft-Exchange-Diagnostics: 1; CY4PR12MB1141; 20:KeAHpbxSh5C1sz0JvmIlV8X92pYSDCCccvKjz7JvHX25+ckB4fAWTyiiO7/92b2bbIcHocgks/vi4cBMaYNUOc/TIsHSvYE85v/bTBXnk+mKPEybqn76w6H1O3v00pMbaTU9rhS+qz2p6ZZrxEVNXQqV/4qctqG7CXAA/0Su6PwavvYKjzDvU/UQACrrxULjoTHh37szMWyWfbU2vUaCYy0zZ2Kdd8rF+nBxxcNAsNtdytJQD3JvL5aFgubxreaJ X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Jun 2017 15:08:29.0044 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR12MB1141 Cc: Brijesh Singh , Toshimitsu Kani , "Michael S. Tsirkin" , Matt Fleming , Alexander Potapenko , "H. Peter Anvin" , Boris Ostrovsky , Jonathan Corbet , Joerg Roedel , Radim =?utf-8?b?S3LEjW3DocWZ?= , Larry Woodman , Ingo Molnar , Andrey Ryabinin , Dave Young , Rik van Riel , Arnd Bergmann , Borislav Petkov , Andy Lutomirski , Thomas Gleixner , Dmitry Vyukov , Juergen Gross , Paolo Bonzini Subject: [Xen-devel] [PATCH v8 RESEND 06/38] x86/mm: Add Secure Memory Encryption (SME) support X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP Add support for Secure Memory Encryption (SME). This initial support provides a Kconfig entry to build the SME support into the kernel and defines the memory encryption mask that will be used in subsequent patches to mark pages as encrypted. Reviewed-by: Borislav Petkov Signed-off-by: Tom Lendacky --- arch/x86/Kconfig | 25 +++++++++++++++++++++++++ arch/x86/include/asm/mem_encrypt.h | 30 ++++++++++++++++++++++++++++++ arch/x86/mm/Makefile | 1 + arch/x86/mm/mem_encrypt.c | 21 +++++++++++++++++++++ include/linux/mem_encrypt.h | 35 +++++++++++++++++++++++++++++++++++ 5 files changed, 112 insertions(+) create mode 100644 arch/x86/include/asm/mem_encrypt.h create mode 100644 arch/x86/mm/mem_encrypt.c create mode 100644 include/linux/mem_encrypt.h diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 72028a1..3a59e9c 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1409,6 +1409,31 @@ config X86_DIRECT_GBPAGES supports them), so don't confuse the user by printing that we have them enabled. +config ARCH_HAS_MEM_ENCRYPT + def_bool y + +config AMD_MEM_ENCRYPT + bool "AMD Secure Memory Encryption (SME) support" + depends on X86_64 && CPU_SUP_AMD + ---help--- + Say yes to enable support for the encryption of system memory. + This requires an AMD processor that supports Secure Memory + Encryption (SME). + +config AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT + bool "Activate AMD Secure Memory Encryption (SME) by default" + default y + depends on AMD_MEM_ENCRYPT + ---help--- + Say yes to have system memory encrypted by default if running on + an AMD processor that supports Secure Memory Encryption (SME). + + If set to Y, then the encryption of system memory can be + deactivated with the mem_encrypt=off command line option. + + If set to N, then the encryption of system memory can be + activated with the mem_encrypt=on command line option. + # Common NUMA Features config NUMA bool "Numa Memory Allocation and Scheduler Support" diff --git a/arch/x86/include/asm/mem_encrypt.h b/arch/x86/include/asm/mem_encrypt.h new file mode 100644 index 0000000..a105796 --- /dev/null +++ b/arch/x86/include/asm/mem_encrypt.h @@ -0,0 +1,30 @@ +/* + * AMD Memory Encryption Support + * + * Copyright (C) 2016 Advanced Micro Devices, Inc. + * + * Author: Tom Lendacky + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __X86_MEM_ENCRYPT_H__ +#define __X86_MEM_ENCRYPT_H__ + +#ifndef __ASSEMBLY__ + +#ifdef CONFIG_AMD_MEM_ENCRYPT + +extern unsigned long sme_me_mask; + +#else /* !CONFIG_AMD_MEM_ENCRYPT */ + +#define sme_me_mask 0UL + +#endif /* CONFIG_AMD_MEM_ENCRYPT */ + +#endif /* __ASSEMBLY__ */ + +#endif /* __X86_MEM_ENCRYPT_H__ */ diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile index 0fbdcb6..a94a7b6 100644 --- a/arch/x86/mm/Makefile +++ b/arch/x86/mm/Makefile @@ -39,3 +39,4 @@ obj-$(CONFIG_X86_INTEL_MPX) += mpx.o obj-$(CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS) += pkeys.o obj-$(CONFIG_RANDOMIZE_MEMORY) += kaslr.o +obj-$(CONFIG_AMD_MEM_ENCRYPT) += mem_encrypt.o diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c new file mode 100644 index 0000000..b99d469 --- /dev/null +++ b/arch/x86/mm/mem_encrypt.c @@ -0,0 +1,21 @@ +/* + * AMD Memory Encryption Support + * + * Copyright (C) 2016 Advanced Micro Devices, Inc. + * + * Author: Tom Lendacky + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include + +/* + * Since SME related variables are set early in the boot process they must + * reside in the .data section so as not to be zeroed out when the .bss + * section is later cleared. + */ +unsigned long sme_me_mask __section(.data) = 0; +EXPORT_SYMBOL_GPL(sme_me_mask); diff --git a/include/linux/mem_encrypt.h b/include/linux/mem_encrypt.h new file mode 100644 index 0000000..59769f7 --- /dev/null +++ b/include/linux/mem_encrypt.h @@ -0,0 +1,35 @@ +/* + * AMD Memory Encryption Support + * + * Copyright (C) 2016 Advanced Micro Devices, Inc. + * + * Author: Tom Lendacky + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __MEM_ENCRYPT_H__ +#define __MEM_ENCRYPT_H__ + +#ifndef __ASSEMBLY__ + +#ifdef CONFIG_ARCH_HAS_MEM_ENCRYPT + +#include + +#else /* !CONFIG_ARCH_HAS_MEM_ENCRYPT */ + +#define sme_me_mask 0UL + +#endif /* CONFIG_ARCH_HAS_MEM_ENCRYPT */ + +static inline bool sme_active(void) +{ + return !!sme_me_mask; +} + +#endif /* __ASSEMBLY__ */ + +#endif /* __MEM_ENCRYPT_H__ */