From: Aneesh Kumar K.V <aneesh.kumar@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-coco@lists.linux.dev, kvmarm@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, iommu@lists.linux.dev,
Jason Gunthorpe <jgg@ziepe.ca>, Marc Zyngier <maz@kernel.org>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Robin Murphy <robin.murphy@arm.com>,
Steven Price <steven.price@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Thomas Gleixner <tglx@kernel.org>, Will Deacon <will@kernel.org>,
Sumit Semwal <sumit.semwal@linaro.org>,
Christian K?nig <christian.koenig@amd.com>
Subject: Re: [PATCH v6 7/9] dma-buf: system_heap: Enforce shared-granule alignment for cc-shared buffers
Date: Mon, 21 Sep 2026 12:27:35 +0530 [thread overview]
Message-ID: <yq5afqz33xcw.fsf@kernel.org> (raw)
In-Reply-To: <aq1V3oeDdvXobt8J@arm.com>
Catalin Marinas <catalin.marinas@arm.com> writes:
> First, none of the DMA-BUF maintainers have been cc'ed. It might be fine
> for an RFC but this series got to version 6. We need their feedback.
>
> On Fri, Sep 04, 2026 at 04:04:50PM +0530, Aneesh Kumar K.V (Arm) wrote:
>> The system heap can allocate buffers that are decrypted and shared with the
[ ... 107 lines skipped ... ]
>
> You need to get a proper base so that Sashiko can review this series. I
> ran it through Claude and the above is wrong to go to free_buffer which
> walks over the pages list that has not been initialised yet.
>
There is a dependency on the file-movement changes in the arm-smccc bus
patch series. This was done because we agreed to move the RSI changes
out of arch/arm64 before considering further CCA-related changes for
merging.
Do you have any suggestions on how to handle this? I could include the
dependent patches when posting the new series so that Sashiko has a base
on which to apply it, and clearly mark those patches as not for merging.
-aneesh
next prev parent reply other threads:[~2026-09-21 6:57 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-04 10:34 [PATCH v6 0/9] coco: guest: Enforce host page-size alignment for shared buffers Aneesh Kumar K.V (Arm)
2026-09-04 10:34 ` [PATCH v6 1/9] mm/mem_encrypt: Add helpers for shared-buffer alignment Aneesh Kumar K.V (Arm)
2026-09-04 10:34 ` [PATCH v6 2/9] irqchip/gic-v3-its: Align shared ITS allocations to the CoCo shared granule size Aneesh Kumar K.V (Arm)
2026-09-04 10:34 ` [PATCH v6 3/9] dma-mapping: Pass allocation attrs to contiguous allocation helpers Aneesh Kumar K.V (Arm)
2026-09-04 10:34 ` [PATCH v6 4/9] dma-direct: Align CoCo shared DMA allocations to the shared granule size Aneesh Kumar K.V (Arm)
2026-09-18 14:16 ` Catalin Marinas
2026-09-04 10:34 ` [PATCH v6 5/9] swiotlb: Align shared IO TLB pools " Aneesh Kumar K.V (Arm)
2026-09-04 10:34 ` [PATCH v6 6/9] swiotlb: Reject misaligned restricted DMA pools for CoCo guests Aneesh Kumar K.V (Arm)
2026-09-04 10:34 ` [PATCH v6 7/9] dma-buf: system_heap: Enforce shared-granule alignment for cc-shared buffers Aneesh Kumar K.V (Arm)
2026-09-18 15:16 ` Catalin Marinas
2026-09-18 15:23 ` Christian König
2026-09-18 15:36 ` Jason Gunthorpe
2026-09-18 15:39 ` Christian König
2026-09-18 16:53 ` Jason Gunthorpe
2026-09-21 9:07 ` Christian König
2026-09-21 11:51 ` Jason Gunthorpe
2026-09-21 12:05 ` Christian König
2026-09-21 12:17 ` Jason Gunthorpe
2026-09-21 12:24 ` Christian König
2026-09-21 12:37 ` Jason Gunthorpe
2026-09-21 15:26 ` Aneesh Kumar K.V
2026-09-22 15:38 ` Catalin Marinas
2026-09-23 5:05 ` Aneesh Kumar K.V
2026-09-19 14:57 ` Aneesh Kumar K.V
2026-09-19 21:35 ` Jason Gunthorpe
2026-09-20 7:24 ` Aneesh Kumar K.V
2026-09-21 6:57 ` Aneesh Kumar K.V [this message]
2026-09-04 10:34 ` [PATCH v6 8/9] arm64: realm: Add RHI helper to query IPA state change alignment Aneesh Kumar K.V (Arm)
2026-09-16 16:12 ` Suzuki K Poulose
2026-09-18 10:39 ` Aneesh Kumar K.V
2026-09-04 10:34 ` [PATCH v6 9/9] arm64: realm: Expose the CCA shared granule size through mem_encrypt ops Aneesh Kumar K.V (Arm)
2026-09-16 16:17 ` Suzuki K Poulose
2026-09-18 16:52 ` [PATCH v6 0/9] coco: guest: Enforce host page-size alignment for shared buffers Catalin Marinas
2026-09-18 16:57 ` Jason Gunthorpe
2026-09-18 17:10 ` Catalin Marinas
2026-09-23 5:01 ` Aneesh Kumar K.V
2026-09-23 15:58 ` Jason Gunthorpe
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