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Peter Anvin" , Ard Biesheuvel , Paolo Bonzini , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Andy Lutomirski , Dave Hansen , Sergio Lopez , Peter Gonda , Peter Zijlstra , Srinivas Pandruvada , David Rientjes , tony.luck@intel.com, npmccallum@redhat.com Subject: Re: [PATCH Part1 RFC v3 10/22] x86/sev: Register GHCB memory when SEV-SNP is active To: Borislav Petkov References: <20210602140416.23573-1-brijesh.singh@amd.com> <20210602140416.23573-11-brijesh.singh@amd.com> From: Brijesh Singh Message-ID: Date: Mon, 14 Jun 2021 07:29:28 -0500 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US X-Originating-IP: [70.112.153.56] X-ClientProxiedBy: SN7PR04CA0068.namprd04.prod.outlook.com (2603:10b6:806:121::13) To DM6PR12MB2714.namprd12.prod.outlook.com (2603:10b6:5:42::18) X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from Brijeshs-MacBook-Pro.local (70.112.153.56) by SN7PR04CA0068.namprd04.prod.outlook.com (2603:10b6:806:121::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4219.21 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?Qms4b3dtSWRyQzBhVTJxelcxRXowaE9kMlB4eUE1SitHLzd4enhaR3h4Ym5D?= =?utf-8?B?KzQxVHFXM2cxWTJwZ0VPb0UxQytuZkdyTWhkOWRMaXFXNGEwYVIvNjUyT3M5?= =?utf-8?B?bXh1WUhKQXdUSmJkeitLTmtFL2FRMHlOWEdVMlZuUmIxVmd6d0NmQUhsbjN4?= =?utf-8?B?MjNoM3dQVWM4ek9YK0hHM0c3Y1JMVzFPNmFPcnJIellDUTZ5SWxUZndUb29X?= =?utf-8?B?R2ZzY2x1QW81ZnhaR2FBcjdNL1FGMWFSQWw2Z3J3MC9GUEIyUHRRY2lTNzNi?= =?utf-8?B?OUJ2cGx2RlVoUnpxUkRFRjMrTlgxQk1vMzhvQStBZXVMRXcrNXZnRVdlL1dn?= =?utf-8?B?anpVa3U4dWx2RWhPSFR0d0VWRTRBM0xaSmNjMlJPdW9UUVdtcjJHeG1RKzhZ?= =?utf-8?B?R2FzVVZmQ09NTjlwQ2lUNUk4U2FEeE00cjhpcE5KQVNtZ2c5U2xvNWZ2Q0pW?= =?utf-8?B?NEVvbUpzbkhtYlZybzE5bEpqdlE1bGxHVUx6b2J4RDVHbS9nUTZiY3l6dXRs?= =?utf-8?B?eFV5ejVvUTl1UjF0NDlZY05WU2ZFUnhQMENIY25OTFI2ZFJualVWdS9pc3l2?= =?utf-8?B?R01WcE1Rd3NGdlpEUVdwbkttd1E5QWovQmdlbkNYbTc3dW5QcWcrRVlpcTVC?= =?utf-8?B?eWVQazlRSVNxcWdxVkVyUWxRWGtWaUt1aTFlbCt6NFBPV2pKU3psZ29LSlU4?= =?utf-8?B?aXQvYTFrcTYyU1J5anhzcEdZT0VMN2tGUmNIOXc5alFyWkJMcDBpalVTMUpE?= =?utf-8?B?cm5NdzBFNGlvY2Y4TXlqOXBCZVliNUg2dkNuZk5mbFZhSXhXbHA5Q0wxK3dV?= =?utf-8?B?clcyaXVQWFZ5VUVtMjBXSERiektIMGVUVmEyUm03aGlhSFFqZko4cURmOVZY?= =?utf-8?B?VVBQRlFpanR3VHpaUmx1aGw4QzNQZFNQaTZHOWhVY1ROTHNJamFjZFYxOE92?= =?utf-8?B?OHk1cUhDU053VnhYZElKcTY0T2o2YytpQTJnRlBFejZCWFg5THlRcVpqYWFL?= =?utf-8?B?NVZYTTFPVnhIZU5rR2IyWTA1ZlZ5bXdlNVMrSmJvOFAvUGNaNDRNZ3FuUk0w?= =?utf-8?B?emFxWDFieHAwdE92NTZPdzVPRytGMVc2M2xZeEpGUDNZeGtlQ0RycS9nRFlt?= =?utf-8?B?S25hNWpJdnZRQ0c1dTVscUJhRTVGazFSTkNIVDlRVmNneWtML3NQSnJjSjdM?= =?utf-8?B?ZHFUSnZVK2x0eUtHTENWQkZPT1pINnp6UWpiZnIwS0lYV1dKWEZNN1UyYUJv?= =?utf-8?B?UFppRk1XUXNvcTQ3Z1NyS0VEbW54UlVDYzYxNTNjSUR1TWhLQmZLd01rRjhi?= =?utf-8?B?a0MzdEdIMlozSXFRUlJvcXZvcVIydTlrN29XeC8xb2RESGFmUHE1dkJuSXBr?= =?utf-8?B?T1RXUjhkblNlUjJqbnI2WnNqQkRNNTYyT1JvaUZSN25KelYva0p5aTF2VFV5?= =?utf-8?B?WXQ2SFl2NzFXbVhHb0hPa3haU25hQnBLQ3hIOG1Camd5YWZtbE9GV2Y2aEYy?= =?utf-8?B?TDRjUCs1VlZvbTNURThwTzNQc2tobkJlSmoxckVFU0tkb2hHV3JXOHlyTXp2?= =?utf-8?B?dVdWdUxESUVhTUZ0b0JZTzkyaXJ1dUVzR3M1SDhJMEg2ZXJxRElWam4vSE51?= =?utf-8?B?c0IvWmZXNVM5OU5aQjBSVU10RmlMUUVaTVhJaklHSWMyb2Y1Y0Jsb2ZycWJG?= =?utf-8?B?TXBzdHY3UmxkaTAxejB1NVFJRmtzK0orQm1rRWVDOVhpeTVaZTN1WnB2NW5S?= =?utf-8?Q?WD30woVdLl3iurdV25+l03Oj9kraFZjW2Abdm6g?= X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: d8647e28-2924-432a-b33c-08d92f300f78 X-MS-Exchange-CrossTenant-AuthSource: DM6PR12MB2714.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Jun 2021 12:29:31.6108 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: I5DnZytbSu4SgsM+p3rLY7W8TM9+lqb7nuTqf1fhw9kuLjqfpoSMUooKWM3h3jrwnyB6IwhA7KQkKZcKM33MBg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB3130 On 6/10/21 12:49 AM, Borislav Petkov wrote: > On Wed, Jun 02, 2021 at 09:04:04AM -0500, Brijesh Singh wrote: >> +++ b/arch/x86/kernel/sev-internal.h >> @@ -0,0 +1,12 @@ >> +/* SPDX-License-Identifier: GPL-2.0-only */ >> +/* >> + * Forward declarations for sev-shared.c >> + * >> + * Author: Brijesh Singh >> + */ >> + >> +#ifndef _ARCH_X86_KERNEL_SEV_INTERNAL_H > __X86_SEV_INTERNAL_H__ Noted. Thanks - Brijesh