From: Aneesh Kumar K.V <aneesh.kumar@kernel.org>
To: Jiri Pirko <jiri@resnulli.us>
Cc: iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-coco@lists.linux.dev,
Robin Murphy <robin.murphy@arm.com>,
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Catalin Marinas <catalin.marinas@arm.com>,
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Mostafa Saleh <smostafa@google.com>,
Petr Tesarik <ptesarik@suse.com>,
Alexey Kardashevskiy <aik@amd.com>,
Dan Williams <dan.j.williams@intel.com>,
Xu Yilun <yilun.xu@linux.intel.com>,
linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org,
Madhavan Srinivasan <maddy@linux.ibm.com>,
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"Christophe Leroy (CS GROUP)" <chleroy@kernel.org>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
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Vasily Gorbik <gor@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
x86@kernel.org
Subject: Re: [PATCH v4 00/13] dma-mapping: Use DMA_ATTR_CC_SHARED through direct, pool and swiotlb paths
Date: Mon, 18 May 2026 13:53:58 +0530 [thread overview]
Message-ID: <yq5amrxxxh0h.fsf@kernel.org> (raw)
In-Reply-To: <agldl4XQLKAtyLty@FV6GYCPJ69>
Jiri Pirko <jiri@resnulli.us> writes:
> Tue, May 12, 2026 at 11:03:55AM +0200, aneesh.kumar@kernel.org wrote:
>>This series propagates DMA_ATTR_CC_SHARED through the dma-direct,
>>dma-pool, and swiotlb paths so that encrypted and decrypted DMA buffers
>>are handled consistently.
>>
>>Today, the direct DMA path mostly relies on force_dma_unencrypted() for
>>shared/decrypted buffer handling. This series consolidates the
>>force_dma_unencrypted() checks in the top-level functions and ensures
>>that the remaining DMA interfaces use DMA attributes to make the correct
>>decisions.
>
> FWIW, the patchset in general looks good to me. I tested this with my
> system_cc_shared dmabuf flow, works flawlessly.
>
> Thanks!
>
Thanks, Can I add
Tested-by: Jiri Pirko <jiri@resnulli.us>
-aneesh
next prev parent reply other threads:[~2026-05-18 8:24 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 9:03 [PATCH v4 00/13] dma-mapping: Use DMA_ATTR_CC_SHARED through direct, pool and swiotlb paths Aneesh Kumar K.V (Arm)
2026-05-12 9:03 ` [PATCH v4 01/13] dma-direct: swiotlb: handle swiotlb alloc/free outside __dma_direct_alloc_pages Aneesh Kumar K.V (Arm)
2026-05-13 13:57 ` Mostafa Saleh
2026-05-14 4:54 ` Aneesh Kumar K.V
2026-05-12 9:03 ` [PATCH v4 02/13] dma-direct: use DMA_ATTR_CC_SHARED in alloc/free paths Aneesh Kumar K.V (Arm)
2026-05-13 13:58 ` Mostafa Saleh
2026-05-14 5:01 ` Aneesh Kumar K.V
2026-05-12 9:03 ` [PATCH v4 03/13] dma-pool: track decrypted atomic pools and select them via attrs Aneesh Kumar K.V (Arm)
2026-05-13 14:00 ` Mostafa Saleh
2026-05-14 7:00 ` Aneesh Kumar K.V
2026-05-14 8:06 ` Mostafa Saleh
2026-05-16 12:53 ` Alexey Kardashevskiy
2026-05-18 8:19 ` Alexey Kardashevskiy
2026-05-18 8:32 ` Aneesh Kumar K.V
2026-05-12 9:03 ` [PATCH v4 04/13] dma: swiotlb: track pool encryption state and honor DMA_ATTR_CC_SHARED Aneesh Kumar K.V (Arm)
2026-05-13 14:27 ` Mostafa Saleh
2026-05-13 17:24 ` Jason Gunthorpe
2026-05-14 6:24 ` Aneesh Kumar K.V
2026-05-14 11:48 ` Mostafa Saleh
2026-05-14 12:35 ` Jason Gunthorpe
2026-05-14 14:43 ` Mostafa Saleh
2026-05-15 22:51 ` Jason Gunthorpe
2026-05-19 11:06 ` Mostafa Saleh
2026-05-19 13:39 ` Jason Gunthorpe
2026-05-14 5:54 ` Aneesh Kumar K.V
2026-05-14 12:02 ` Mostafa Saleh
2026-05-14 12:48 ` Aneesh Kumar K.V
2026-05-14 14:21 ` Mostafa Saleh
2026-05-14 14:43 ` Aneesh Kumar K.V
2026-05-19 11:04 ` Mostafa Saleh
2026-05-19 12:27 ` Aneesh Kumar K.V
2026-05-19 15:07 ` Aneesh Kumar K.V
2026-05-19 15:27 ` Jason Gunthorpe
2026-05-19 16:05 ` Aneesh Kumar K.V
2026-05-19 16:11 ` Jason Gunthorpe
2026-05-20 3:57 ` Aneesh Kumar K.V
2026-05-20 13:40 ` Jason Gunthorpe
2026-05-19 13:29 ` Jason Gunthorpe
2026-05-19 13:41 ` Mostafa Saleh
2026-05-19 14:00 ` Aneesh Kumar K.V
2026-05-19 14:04 ` Mostafa Saleh
2026-05-19 14:17 ` Aneesh Kumar K.V
2026-05-19 14:27 ` Mostafa Saleh
2026-05-19 14:37 ` Jason Gunthorpe
2026-05-19 14:35 ` Jason Gunthorpe
2026-05-19 14:45 ` Mostafa Saleh
2026-05-19 14:49 ` Jason Gunthorpe
2026-05-14 14:37 ` Jason Gunthorpe
2026-05-14 15:43 ` Mostafa Saleh
2026-05-18 8:19 ` Alexey Kardashevskiy
2026-05-21 17:06 ` Mostafa Saleh
2026-05-21 17:20 ` Aneesh Kumar K.V
2026-05-12 9:04 ` [PATCH v4 05/13] dma-mapping: make dma_pgprot() " Aneesh Kumar K.V (Arm)
2026-05-12 9:04 ` [PATCH v4 06/13] dma-direct: pass attrs to dma_capable() for DMA_ATTR_CC_SHARED checks Aneesh Kumar K.V (Arm)
2026-05-12 9:04 ` [PATCH v4 07/13] dma-direct: make dma_direct_map_phys() honor DMA_ATTR_CC_SHARED Aneesh Kumar K.V (Arm)
2026-05-18 10:04 ` Christian Borntraeger
2026-05-21 15:37 ` Aneesh Kumar K.V
2026-05-12 9:04 ` [PATCH v4 08/13] dma-direct: set decrypted flag for remapped DMA allocations Aneesh Kumar K.V (Arm)
2026-05-12 9:04 ` [PATCH v4 09/13] dma-direct: select DMA address encoding from DMA_ATTR_CC_SHARED Aneesh Kumar K.V (Arm)
2026-05-12 9:04 ` [PATCH v4 10/13] dma-pool: fix page leak in atomic_pool_expand() cleanup Aneesh Kumar K.V (Arm)
2026-05-12 9:04 ` [PATCH v4 11/13] dma-direct: rename ret to cpu_addr in alloc helpers Aneesh Kumar K.V (Arm)
2026-05-12 9:04 ` [PATCH v4 12/13] dma-direct: return struct page from dma_direct_alloc_from_pool() Aneesh Kumar K.V (Arm)
2026-05-12 9:04 ` [PATCH v4 13/13] x86/amd-gart: preserve the direct DMA address until GART mapping succeeds Aneesh Kumar K.V (Arm)
2026-05-21 11:54 ` Aneesh Kumar K.V
2026-05-17 6:19 ` [PATCH v4 00/13] dma-mapping: Use DMA_ATTR_CC_SHARED through direct, pool and swiotlb paths Jiri Pirko
2026-05-18 8:23 ` Aneesh Kumar K.V [this message]
2026-05-18 8:34 ` Jiri Pirko
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