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Ip=[216.228.118.233]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SJ5PEPF000001F3.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV5PR12MB9756 Received-SPF: permerror client-ip=2a01:111:f403:c107::9; envelope-from=nicolinc@nvidia.com; helo=PH7PR06CU001.outbound.protection.outlook.com X-Spam_score_int: -24 X-Spam_score: -2.5 X-Spam_bar: -- X-Spam_report: (-2.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.444, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Sender: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org On Wed, Apr 15, 2026 at 11:55:48AM +0100, Shameer Kolothum wrote: > Add an "identifier" property to the SMMUv3 device and use it when > building the ACPI IORT SMMUv3 node Identifier field. > > This avoids relying on device enumeration order and provides a stable > per-device identifier. A subsequent patch will use the same identifier > when generating the DSDT description for Tegra241 CMDQV, ensuring that > the IORT and DSDT entries refer to the same SMMUv3 instance. > > The identifier is assigned at pre-plug time, accounting for the ITS Group > node that build_iort() places before SMMUv3 nodes in the IORT table, so > that identifiers are globally unique across all IORT nodes. > > No functional change: IORT blob content for bios-tables qtest is identical > to before. > > Reviewed-by: Eric Auger > Signed-off-by: Shameer Kolothum Reviewed-by: Nicolin Chen