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Lu" , Paul Walmsley , Palmer Dabbelt , Albert Ou , linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, kvmarm@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org Subject: Re: [PATCH v5 04/37] arm64/gcs: Document the ABI for Guarded Control Stacks Message-ID: References: <20230822-arm64-gcs-v5-0-9ef181dd6324@kernel.org> <20230822-arm64-gcs-v5-4-9ef181dd6324@kernel.org> Content-Disposition: inline In-Reply-To: <20230822-arm64-gcs-v5-4-9ef181dd6324@kernel.org> X-ClientProxiedBy: SN1PR12CA0070.namprd12.prod.outlook.com (2603:10b6:802:20::41) To DB9PR08MB7179.eurprd08.prod.outlook.com (2603:10a6:10:2cc::19) MIME-Version: 1.0 X-MS-TrafficTypeDiagnostic: DB9PR08MB7179:EE_|AM8PR08MB5732:EE_|AM7EUR03FT038:EE_|PAWPR08MB10133:EE_ X-MS-Office365-Filtering-Correlation-Id: 96514747-3ef3-4e1e-5133-08dba321457e x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; 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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Aug 2023 15:05:49.7430 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 96514747-3ef3-4e1e-5133-08dba321457e X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM7EUR03FT038.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PAWPR08MB10133 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_080627_885386_DA0A3FF3 X-CRM114-Status: UNSURE ( 9.50 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org just nits. The 08/22/2023 14:56, Mark Brown wrote: > +3. Allocation of Guarded Control Stacks > +---------------------------------------- ... > +* Stacks allocated using map_shadow_stack() must be larger than 8 bytes and > + must be 8 bytes aligned. "the size must be multiple of 8 bytes." > + > +* An address can be specified to map_shadow_stack(), if one is provided then > + it must be aligned to a page boundary. ... > +5. Signal return > +----------------- ... > + > +7. ptrace extensions > +--------------------- section 6. is missing _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel