Re: [PATCH 0/2] iommu/tegra241-cmdqv: Fix initialization and uAPI related to HYP_OWN

From: Will Deacon

Date: Tue Mar 24 2026 - 11:16:04 EST


On Thu, 12 Mar 2026 17:36:33 -0700, Nicolin Chen wrote:
> Eric and Shameer found a bug in kernel driver that supports_cmd is set in
> an incorrect order related to the hyp_own finalization. This results in a
> unnecessary command filter in the host environment that sends unsupported
> (non-invalidation) commands to the SMMU CMDQ.
>
> Also, Eric pointed it out that the requirement of VMM wiring HYP_OWN to 0
> is unclear.
>
> [...]

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

[1/2] iommu/tegra241-cmdqv: Set supports_cmd op in tegra241_vcmdq_hw_init()
https://git.kernel.org/iommu/c/803e41f36d22
[2/2] iommu/tegra241-cmdqv: Update uAPI to clarify HYP_OWN requirement
https://git.kernel.org/iommu/c/9dcef98dbee3

Cheers,
--
Will

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