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Peter Anvin" , Kees Cook , "Kirill A . Shutemov" , Tony Luck , "Nick Desaulniers" , Kuppuswamy Sathyanarayanan , Tom Lendacky , Venu Busireddy , "Joerg Roedel" , Tianyu Lan Subject: [PATCH v4 0/2] x86/sev: Fix AP Jump Table handling for SNP guests Date: Tue, 26 Apr 2022 09:21:45 -0500 Message-ID: <20220426142147.338412-1-michael.roth@amd.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.180.168.240] 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-Office365-Filtering-Correlation-Id: 05f28980-fd8d-4c54-1719-08da27902df7 X-MS-TrafficTypeDiagnostic: MWHPR12MB1136:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 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:(13230001)(4636009)(46966006)(36840700001)(40470700004)(186003)(83380400001)(36756003)(16526019)(70206006)(44832011)(82310400005)(2616005)(1076003)(26005)(508600001)(54906003)(6916009)(2906002)(70586007)(81166007)(6666004)(4744005)(36860700001)(336012)(47076005)(40460700003)(426003)(356005)(86362001)(5660300002)(8676002)(8936002)(316002)(4326008)(7416002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Apr 2022 14:22:22.4569 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 05f28980-fd8d-4c54-1719-08da27902df7 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: CO1NAM11FT049.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR12MB1136 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series is based on tip/master (commit 1912a07f8a) SNP guests should only retrieve the AP Jump Table address from the secrets page, not via a GHCB request as with SEV-ES guests. This series reworks the handling accordingly, and fixes up some __init annotations for some of the SEV routines touched by that rework. v4: - Improve commit msg for patch 2 (Tom) v3: - Address missing __init annotations (Boris) v2: - add handling for memremap()/ioremap() failures (Boris) - don't mix function calls with declarations (Boris) arch/x86/include/asm/sev.h | 35 +++++++++++++++++++++++++++++++++++ arch/x86/kernel/sev.c | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-------------------------- arch/x86/realmode/init.c | 2 +- drivers/virt/coco/sev-guest/sev-guest.h | 35 ----------------------------------- 4 files changed, 90 insertions(+), 62 deletions(-)