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| author | Aneesh Kumar K.V (Arm) <aneesh.kumar@kernel.org> | 2025-04-08 06:33:51 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2025-04-17 14:25:34 +0300 |
| commit | 45e00e36718902d81bdaebb37b3a8244e685bc48 (patch) | |
| tree | 328b793399905e0e4544b9571b4695d3fe8a5aee /lib/mpi/mpi-sub-ui.c | |
| parent | 8ffd015db85fea3e15a77027fda6c02ced4d2444 (diff) | |
| download | linux-45e00e36718902d81bdaebb37b3a8244e685bc48.tar.xz | |
iommu/arm-smmu-v3: Add missing S2FWB feature detection
Commit 67e4fe398513 ("iommu/arm-smmu-v3: Use S2FWB for NESTED domains")
introduced S2FWB usage but omitted the corresponding feature detection.
As a result, vIOMMU allocation fails on FVP in arm_vsmmu_alloc(), due to
the following check:
if (!arm_smmu_master_canwbs(master) &&
!(smmu->features & ARM_SMMU_FEAT_S2FWB))
return ERR_PTR(-EOPNOTSUPP);
This patch adds the missing detection logic to prevent allocation
failure when S2FWB is supported.
Fixes: 67e4fe398513 ("iommu/arm-smmu-v3: Use S2FWB for NESTED domains")
Signed-off-by: Aneesh Kumar K.V (Arm) <aneesh.kumar@kernel.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Pranjal Shrivastava <praan@google.com>
Link: https://lore.kernel.org/r/20250408033351.1012411-1-aneesh.kumar@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'lib/mpi/mpi-sub-ui.c')
0 files changed, 0 insertions, 0 deletions