From patchwork Fri Mar 29 22:58:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Roth X-Patchwork-Id: 784572 Received: from NAM11-BN8-obe.outbound.protection.outlook.com (mail-bn8nam11on2040.outbound.protection.outlook.com [40.107.236.40]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9983813E03C; Fri, 29 Mar 2024 23:05:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.236.40 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711753523; cv=fail; b=ir4hSifu5fey34lNG6NQVVdeNpOeFcEieUmPjx+JWXGmM0fLCR2jkDcFWocnQ0Z6UHZpsszZ2KA8JyFaZLzuirGC38oTD91vtzYlUtwO1YYexA37kRiieHAemsCTGZGg/Gr0liS2SQMaXWi3QaN4RPkNJrGquvuCYeSsoSOUonY= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711753523; c=relaxed/simple; bh=t6UieSJ5aHrhTKRlb53VzznFZ/qXUrkgaE7o8gZE/+c=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=h8gGo4IU5fOxYESYjlWb2admmJFHoqHe36L/ScJFzXvuicCfSIkoZP7l7dGnL3kCDVhC93IFhMiS/GZr9EkEocAP7E8ClmR0dsnq7DqG43Aijf66EXCXkquImRK+gGS+fQBoATTlU4WvXhS1V7gRJZ2INkWuJ5HUwkFWgZUYNec= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=CiYljdty; arc=fail smtp.client-ip=40.107.236.40 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="CiYljdty" ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=frzmtRSMgBkKrfJWtOOGtMYpWeHXByzvQMnImIaM/Y7Zn2imPqws5JlYj9amuUF7FI5lNiyklssDg+ARrRLBuS8lQIqA7fbe6NeMhLebUIhL9B0KslGoGwkSI8w26HbYXtNH99ifjXXv5HNWbojwJeBChDiY1OiTTPeVm9z0CkCG2F9296ifulu89PAJU6Q4HA3p7MYj7ijD1xJNvf4pVrEl/p6jS2TBFLnBdLg7VcZLRheUe889qDpg9wjBd4oKfsj2IOMDjSBUhxrosv5TkBITL9bt0vlljnX9SNcY0gSk+8Z5xw5HfzhpnzZfWHV4Qer+cYmDLSRjTXMWut1SoQ== 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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=0xHhkTg8VzVvhSodYJrNf6IBU64g70xsxalqoGKfNNU=; b=D7IP749sueI1loeTEp2KDxvWwsRo1KaWTArhoRats/5kCwSB08YbUFMmM9uulAxh8iaLUUhpa/pniwdbLIYcT7p1OfsIR4/nyn9w61eyC6YyeD1ph0ZxIjN2oeMBoYQzuPGmlsyo8xJlk1vVynWpXobaKAw/QPiIfjP5HqWPvaKMezBEfvK+TbnrGCThTjNISgOH9j1oNwVFgiTIAsWELpWKyqPH8uLWXGDtLT+FrHRXGm0dnEr//8Eex+iA5UUrxsXSdPnGtd69hN6inbsiaeQFh0FyYfjIjUl5UKr6VkobpNu+a5dtDGFxvea5t7H3Os8SDzfb34a1RvuQ6+3OAg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=vger.kernel.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=0xHhkTg8VzVvhSodYJrNf6IBU64g70xsxalqoGKfNNU=; b=CiYljdty2T47vksPxtji3WbPU/xydwrQM2lT5uTskQZ1tii/+okgoDkLLcgrK4p0Lsrrpjvg2vJP4VZhHeJF4ETfzd2mdmQNAO9ucswMvvX1T8rF5ZmwXySmiyJHov8Ym/YLqG0SuRVH2JWw9Jecy0MTSCWiJEiXZlEmkU71gno= Received: from DM6PR02CA0089.namprd02.prod.outlook.com (2603:10b6:5:1f4::30) by IA0PR12MB7578.namprd12.prod.outlook.com (2603:10b6:208:43d::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7409.33; Fri, 29 Mar 2024 23:05:19 +0000 Received: from DS1PEPF0001708F.namprd03.prod.outlook.com (2603:10b6:5:1f4:cafe::aa) by DM6PR02CA0089.outlook.office365.com (2603:10b6:5:1f4::30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7409.40 via Frontend Transport; Fri, 29 Mar 2024 23:05:18 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by DS1PEPF0001708F.mail.protection.outlook.com (10.167.17.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7409.10 via Frontend Transport; Fri, 29 Mar 2024 23:05:18 +0000 Received: from localhost (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 29 Mar 2024 18:05:18 -0500 From: Michael Roth To: CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Brijesh Singh Subject: [PATCH v12 25/29] KVM: SVM: Add module parameter to enable the SEV-SNP Date: Fri, 29 Mar 2024 17:58:31 -0500 Message-ID: <20240329225835.400662-26-michael.roth@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240329225835.400662-1-michael.roth@amd.com> References: <20240329225835.400662-1-michael.roth@amd.com> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS1PEPF0001708F:EE_|IA0PR12MB7578:EE_ X-MS-Office365-Filtering-Correlation-Id: 0f21ff6f-1ba8-4cea-c97a-08dc5044b406 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: TErQZmUWz8PNTqKamo3Yb/KtS5bP5C+DzeoqPvFzYaHaPgGp/+cFm0scDCZxRhB/3DroiSZcjmtpx+l3xjfNxR9fivC8wp0QMnJPparxBfI8JvJLNAhoVHlMXlvaJ9GIAjUIpST1uyFpE2JfH2c0aYE/WyNVnCjUNRVCnxrWd5xsGSMbLETue1UvmW9RwG8L7cRKWCBjpm+uG6FHqfO1inVFVFTIVlkOuoM6GCxblaAQM4xjgi4nphzgT1mmhr679S4kL6r0zfwUNQCE2SU0X2CQJsRmDhwARrW0BoHaWhugAHRT4j+vu2sE34XAVtwlJufMehNZVcCSZCmkMqAxoHpcmi86S+Un0hB7xvehd34avgQnHcB2xyp+WkoWJJgcF1ZKeGZrQFf8yAcBwZtE5qUvSr07P26kKxUjNB3ykesyyjIzLyWrmdYjdOzB3MRhCoNhbrPuaelfzF/qgnEAFtagqxy9dcRN0D7eZO21LwOBUuwMOekFV/I1iaIzA0RlaXcCOa7waSjDkvu/YZxPBmym/Arhs1TUhyL1bYRq5pem/rXvYpIwA0f+YazF/mOyHwQuXyfVnaEtEwDrZpTdM1bryyKx/oG7Nz2T6dzVwVd9FxHBKHQ+gLYbn1Ex/YuRavTBp7ATxNx5eMNywmxbcvTDGjxOMwSiIt6C4EhQGK8qTkBilCN1VDJDxFTI+NsSUCLvqviql9KZNELVgmdvNEq4szxbj4YZjDyWzeHcNLxxgmgkVy6XQ9rY2xZz9p06 X-Forefront-Antispam-Report: CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230031)(1800799015)(376005)(7416005)(36860700004)(82310400014); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Mar 2024 23:05:18.7328 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0f21ff6f-1ba8-4cea-c97a-08dc5044b406 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS1PEPF0001708F.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA0PR12MB7578 From: Brijesh Singh Add a module parameter than can be used to enable or disable the SEV-SNP feature. Now that KVM contains the support for the SNP set the GHCB hypervisor feature flag to indicate that SNP is supported. Signed-off-by: Brijesh Singh Signed-off-by: Ashish Kalra --- arch/x86/kvm/svm/sev.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index 3e8de7cb3c89..658116537f3f 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -48,7 +48,8 @@ static bool sev_es_enabled = true; module_param_named(sev_es, sev_es_enabled, bool, 0444); /* enable/disable SEV-SNP support */ -static bool sev_snp_enabled; +static bool sev_snp_enabled = true; +module_param_named(sev_snp, sev_snp_enabled, bool, 0444); /* enable/disable SEV-ES DebugSwap support */ static bool sev_es_debug_swap_enabled = true;