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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 CO1PEPF000044F6.mail.protection.outlook.com (10.167.241.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7339.0 via Frontend Transport; Tue, 20 Feb 2024 01:18:22 +0000 Received: from ethanolx7e2ehost.amd.com (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; Mon, 19 Feb 2024 19:18:20 -0600 From: Ashish Kalra <Ashish.Kalra@amd.com> To: <tglx@linutronix.de>, <mingo@redhat.com>, <bp@alien8.de>, <dave.hansen@linux.intel.com>, <luto@kernel.org>, <x86@kernel.org> CC: <ardb@kernel.org>, <hpa@zytor.com>, <linux-efi@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <rafael@kernel.org>, <peterz@infradead.org>, <adrian.hunter@intel.com>, <sathyanarayanan.kuppuswamy@linux.intel.com>, <elena.reshetova@intel.com>, <jun.nakajima@intel.com>, <rick.p.edgecombe@intel.com>, <thomas.lendacky@amd.com>, <seanjc@google.com>, <kai.huang@intel.com>, <bhe@redhat.com>, <kexec@lists.infradead.org>, <linux-coco@lists.linux.dev>, <kirill.shutemov@linux.intel.com>, <anisinha@redhat.com>, <michael.roth@amd.com>, <bdas@redhat.com>, <vkuznets@redhat.com>, <dionnaglaze@google.com>, <jroedel@suse.de>, <ashwin.kamat@broadcom.com> Subject: [PATCH 0/2] x86/snp: Add kexec support Date: Tue, 20 Feb 2024 01:18:10 +0000 Message-ID: <cover.1708390906.git.ashish.kalra@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240212104448.2589568-1-kirill.shutemov@linux.intel.com> References: <20240212104448.2589568-1-kirill.shutemov@linux.intel.com> Precedence: bulk X-Mailing-List: linux-efi@vger.kernel.org List-Id: <linux-efi.vger.kernel.org> List-Subscribe: <mailto:linux-efi+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-efi+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000044F6:EE_|SN7PR12MB8792:EE_ X-MS-Office365-Filtering-Correlation-Id: 7703b4ea-04ec-4a23-31d6-08dc31b1d46f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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| Series | x86/snp: Add kexec support | expand |
From: Ashish Kalra <ashish.kalra@amd.com> The patchset adds bits and pieces to get kexec (and crashkernel) work on SNP guest. This patchset requires [1] for chained guest kexec to work correctly. [1]: https://lore.kernel.org/lkml/20240219225451.787816-1-Ashish.Kalra@amd.com/ Ashish Kalra (2): x86/mm: Do not zap PMD entry mapping unaccepted memory table during kdump. x86/snp: Convert shared memory back to private on kexec arch/x86/include/asm/probe_roms.h | 1 + arch/x86/include/asm/sev.h | 8 ++ arch/x86/kernel/probe_roms.c | 16 +++ arch/x86/kernel/sev.c | 211 ++++++++++++++++++++++++++++++ arch/x86/mm/init_64.c | 4 +- arch/x86/mm/mem_encrypt_amd.c | 18 ++- 6 files changed, 256 insertions(+), 2 deletions(-)