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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Nov 2025 09:12:20.9125 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e8dbd472-7c88-40ad-9eba-08de28de13a2 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=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF00001CE7.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB7236 Patch 1: Reserves the Domain IDs allocated by the host kernel while reusing its device table inside kdump kernel Patch 2: Cleanup around pdom allocation ------------------------------------------------------------------------------- Changes since v1: https://lore.kernel.org/all/20251114104442.23296-1-sarunkod@amd.com/ P1: - Use FIELD_GET to read the DTE fields [Ankit] - Use GFP_KERNEL instead of GFP_ATOMIC [Jason] - Remove print on ENOMEM [Jason] P2: - Use u32 instead of int [Jason] - pass gfp flags as argument to 'amd_iommu_pdom_id_reserve' [Jason] ------------------------------------------------------------------------------- Base Commit: 91920a9d87f5192c56ba5bf3e133aeb3576b705d (iommu-next) ------------------------------------------------------------------------------- Fixes: 38e5f33ee359 ("iommu/amd: Reuse device table for kdump") Signed-off-by: Sairaj Kodilkar Sairaj Kodilkar (2): amd/iommu: Preserve domain ids inside the kdump kernel amd/iommu: Make protection domain ID functions non-static drivers/iommu/amd/amd_iommu.h | 5 +++++ drivers/iommu/amd/init.c | 24 +++++++++++++++++++++--- drivers/iommu/amd/iommu.c | 27 ++++++++++++++++++--------- 3 files changed, 44 insertions(+), 12 deletions(-) -- 2.34.1