From: Will Deacon <will@kernel.org>
To: iommu@lists.linux.dev, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
"Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
Cc: catalin.marinas@arm.com, kernel-team@android.com,
Will Deacon <will@kernel.org>,
robin.murphy@arm.com, jgg@ziepe.ca, nicolinc@nvidia.com,
jsnitsel@redhat.com, praan@google.com, kevin.tian@intel.com,
ddutile@redhat.com
Subject: Re: [PATCH] iommu/arm-smmu-v3: Add missing S2FWB feature detection
Date: Thu, 17 Apr 2025 15:27:25 +0100 [thread overview]
Message-ID: <174488913548.907912.11019680533308808678.b4-ty@kernel.org> (raw)
In-Reply-To: <20250408033351.1012411-1-aneesh.kumar@kernel.org>
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
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
prev parent reply other threads:[~2025-04-17 14:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-08 3:33 Aneesh Kumar K.V (Arm)
2025-04-08 5:30 ` Pranjal Shrivastava
2025-04-08 7:31 ` Nicolin Chen
2025-04-08 12:09 ` Jason Gunthorpe
2025-04-11 16:03 ` Will Deacon
2025-04-17 14:27 ` Will Deacon [this message]
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