Re: [PATCH v9 03/12] iommu/arm-smmu-v3: Add strtab parse helpers to a new arm-smmu-v3-kexec.c
From: Jason Gunthorpe <jgg@nvidia.com>
Date: 2026-08-21 23:15:48
Also in:
linux-iommu, lkml
On Tue, 21 Jul 2026 12:48:12 -0700, Nicolin Chen [off-list ref] wrote:
When booting after a kexec, both the kdump adoption and also the in-flight SMMUv3 live-update restoration built on the Kexec Handover (KHO) framework need to parse the previous kernel's STRTAB_BASE/STRTAB_BASE_CFG registers, in order to retain the stream table translating any in-flight DMAs. Add a new arm-smmu-v3-kexec.c holding the common read-only helpers: - arm_smmu_kexec_parse_strtab_2lvl() - arm_smmu_kexec_parse_strtab_linear() - arm_smmu_kexec_check_strtab_l1_desc() [...]
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> -- Jason