Re: [PATCH] iommu/arm-smmu-v3: Add missing S2FWB feature detection

[Will Deacon]

On Tue, 08 Apr 2025 09:03:51 +0530, Aneesh Kumar K.V (Arm) wrote:
> 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);
> 
> [...]

Applied to iommu (arm/smmu/fixes), thanks!

[1/1] iommu/arm-smmu-v3: Add missing S2FWB feature detection
      https://git.kernel.org/iommu/c/45e00e367189

Cheers,
-- 
Will

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