From: Nicolin Chen <nicolinc@nvidia.com>
To: <will@kernel.org>
Cc: <robin.murphy@arm.com>, <joro@8bytes.org>, <jgg@nvidia.com>,
<praan@google.com>, <kevin.tian@intel.com>, <smostafa@google.com>,
<linux-arm-kernel@lists.infradead.org>, <iommu@lists.linux.dev>,
<linux-kernel@vger.kernel.org>, <jamien@nvidia.com>,
<kas@kernel.org>, Cristian Prundeanu <cpru@amazon.com>,
Breno Leitao <leitao@kernel.org>
Subject: Re: [PATCH v11 00/11] iommu/arm-smmu-v3: Adopt the crashed kernel's stream table for kdump
Date: Mon, 5 Oct 2026 13:48:29 -0700 [thread overview]
Message-ID: <asQNHT9Vk61t/vrn@nvidia.com> (raw)
In-Reply-To: <cover.1791226953.git.nicolinc@nvidia.com>
On Mon, Oct 05, 2026 at 12:30:43PM -0700, Nicolin Chen wrote:
> This is on Github:
> https://github.com/nicolinc/iommufd/commits/smmuv3_kdump-v11
>
> Changelog
> v11
> * Rebase on arm/smmu/updates branch
> * Add Tested-by from Breno and Cristian
> * Add Reviewed/Acked-by from Jason and Kiryl
> * Update commit messages and Assisted-by tags
> * New prep patch: swap EVTQ/GERROR MSI indexes
> * Skip EVTQ's CFG0 write and vector allocation
> * Merge arm-smmu-v3-kdump code into arm-smmu-v3-kexec
> * Fold patches accordingly as static functions require callers
Will,
I have checked the new Sashiko finding against this v11.
To approach its claimed 35-trillion bound, every L1 descriptor,
STE and CD L1 descriptor must pass the validations, which takes
a deliberately built aliasing table but is not likely reachable
in practice: with a corrupted memory, one of the entries would
more likely either skip the iteration (V=0) or fail the test.
I tend to ignore that. But if you think it is worth addressing
and have some good idea about it, I don't mind a respin.
Thanks
Nicolin
prev parent reply other threads:[~2026-10-05 20:49 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-05 19:30 Nicolin Chen
2026-10-05 19:30 ` [PATCH v11 01/11] iommu/arm-smmu-v3: Init the vmid_map ida before the stream table setup Nicolin Chen
2026-10-05 19:30 ` [PATCH v11 02/11] iommu/arm-smmu-v3: Make the ASID space per SMMU instance Nicolin Chen
2026-10-05 19:30 ` [PATCH v11 03/11] iommu/arm-smmu-v3: Swap EVTQ_MSI_INDEX and GERROR_MSI_INDEX Nicolin Chen
2026-10-05 19:30 ` [PATCH v11 04/11] iommu/arm-smmu-v3: Add ARM_SMMU_FEAT_EVTQ for the event queue Nicolin Chen
2026-10-05 19:30 ` [PATCH v11 05/11] iommu/arm-smmu-v3: Disable the EVTQ and the PRIQ in a kdump kernel Nicolin Chen
2026-10-05 19:30 ` [PATCH v11 06/11] iommu/arm-smmu-v3: Add ARM_SMMU_OPT_KDUMP_ADOPT for " Nicolin Chen
2026-10-05 19:30 ` [PATCH v11 07/11] iommu/arm-smmu-v3-kexec: Reserve crashed kernel's ASIDs and VMIDs Nicolin Chen
2026-10-05 19:30 ` [PATCH v11 08/11] iommu/arm-smmu-v3-kexec: Implement is_attach_deferred() Nicolin Chen
2026-10-05 19:30 ` [PATCH v11 09/11] iommu/arm-smmu-v3: Retain CR0_SMMUEN during kdump device reset Nicolin Chen
2026-10-05 19:30 ` [PATCH v11 10/11] iommu/arm-smmu-v3: Skip RMR bypass for kdump adoption Nicolin Chen
2026-10-05 19:30 ` [PATCH v11 11/11] iommu/arm-smmu-v3: Detect ARM_SMMU_OPT_KDUMP_ADOPT in probe() Nicolin Chen
2026-10-05 20:48 ` Nicolin Chen [this message]
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