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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: GeEJCjW4oF45fMKibpp4Y4Waz3JC0co0I3iXgA8SLmUoGi7CKA5D5tZoaOFaX5pGyDj1jHVmuxuRA0CCDG9NeCzg3tbD2Ks7J+aIzwJh5AeIqr5yNx8k8KnG/+vrnW5KBUI5DYZhkP5BPq9HQtTqR27HF02asxlvUHOFLgLI7XvpqllhEZZO88fWBdqcJ9BIDcBykwi+jawnibdiKJpMhRP+8lpIdosqr9/yBmj7ZXTM3ulXoa3td2WqjdsUTDPPs0XvAL4Ebc5gDt4VxVg/IaOg+djWGVIB8VNMJS5025McpBPK7+OtLT4kNP5Ecmaw0L+XbvluViLR+SQ/RhUe8HUm0tKaMQ/pgShWpoASJnWXg1FXmbXZrRcvKK50VyTEIuthYkMqBqNmGhbBTmxsezcc6FG6aMlpX4C6izvMTOJ+BIgoIam9JuKxqJ6gYJ4u X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Oct 2026 13:08:23.4355 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5e12e663-3c6c-4711-b2e1-08df2de20e3e 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: BN5PEPF00046987.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ5PPF75EAF8F39 The AMD IOMMU driver hardcodes a 52-bit output address size when it creates paging domains. This series honors the PAsize reported in ACPI IVRS IVinfo instead, so maps cannot exceed what firmware or a VM advertises. Patch 1 moves page-table setup into init_pgtable_params() after the IVHD walk, with no functional change intended. Patch 2 uses that helper for PAsize and applies it to paging domains. Ankit Soni (2): iommu/amd: Move page-table setup into init_pgtable_params() iommu/amd: Adhere to IVINFO[PAsize] for output address limits drivers/iommu/amd/amd_iommu.h | 1 + drivers/iommu/amd/amd_iommu_types.h | 1 + drivers/iommu/amd/init.c | 95 ++++++++++++++++------------- drivers/iommu/amd/iommu.c | 4 +- 4 files changed, 58 insertions(+), 43 deletions(-) base-commit: 90201351a862182bdabfc1ad1c97b1e1b6ed5931 -- 2.43.0