From: Nicolin Chen <nicolinc@nvidia.com>
To: <will@kernel.org>, <robin.murphy@arm.com>, <jgg@nvidia.com>,
<kevin.tian@intel.com>
Cc: <joro@8bytes.org>, <praan@google.com>, <baolu.lu@linux.intel.com>,
<miko.lenczewski@arm.com>, <smostafa@google.com>,
<linux-arm-kernel@lists.infradead.org>, <iommu@lists.linux.dev>,
<linux-kernel@vger.kernel.org>, <stable@vger.kernel.org>,
<jamien@nvidia.com>
Subject: Re: [PATCH rc v3 0/5] iommu/arm-smmu-v3: Fix device crash on kdump kernel
Date: Tue, 28 Apr 2026 20:55:33 -0700 [thread overview]
Message-ID: <afGBNcntmLjlT8vd@Asurada-Nvidia> (raw)
In-Reply-To: <cover.1777150307.git.nicolinc@nvidia.com>
On Sat, Apr 25, 2026 at 02:30:45PM -0700, Nicolin Chen wrote:
> This is on Github:
> https://github.com/nicolinc/iommufd/commits/smmuv3_kdump-v3
>
> Changelog
> v3
> * s/OPT_KDUMP/OPT_KDUMP_ADOPT
> * Do not adopt if GERROR_SFM_ERR
> * Retain CR0_ATSCHK beside CR0_SMMUEN
> * Clear latched GERROR bits (e.g. CMDQ_ERR)
> * Assert ARM_SMMU_FEAT_COHERENCY in adopt functions
> * Add STE.Cfg check in arm_smmu_is_attach_deferred()
> * Fix validations on return codes from devm_memremap()
> * Sanitize crashed kernel register values in adopt functions
> * Drop unnecessary l2ptrs guard in arm_smmu_is_attach_deferred()
> * Don't enable PRIQ/EVTQ irqs and guard the irq functions for combined
> irq cases
https://sashiko.dev/#/patchset/cover.1777150307.git.nicolinc%40nvidia.com
Sashiko pointed out a few more comments on v3. Most of them are
interesting to address.
I have made some updates to the series and will send v4 after a
final check.
Thanks
Nicolin
prev parent reply other threads:[~2026-04-29 3:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-25 21:30 [PATCH rc v3 0/5] iommu/arm-smmu-v3: Fix device crash on kdump kernel Nicolin Chen
2026-04-25 21:30 ` [PATCH rc v3 1/5] iommu/arm-smmu-v3: Add arm_smmu_adopt_strtab() for kdump Nicolin Chen
2026-04-25 21:30 ` [PATCH rc v3 2/5] iommu/arm-smmu-v3: Implement is_attach_deferred() " Nicolin Chen
2026-04-25 21:30 ` [PATCH rc v3 3/5] iommu/arm-smmu-v3: Retain CR0_SMMUEN during kdump device reset Nicolin Chen
2026-04-25 21:30 ` [PATCH rc v3 4/5] iommu/arm-smmu-v3: Skip EVTQ/PRIQ setup in kdump kernel Nicolin Chen
2026-04-25 21:30 ` [PATCH rc v3 5/5] iommu/arm-smmu-v3: Detect ARM_SMMU_OPT_KDUMP_ADOPT in probe() Nicolin Chen
2026-04-29 3:55 ` Nicolin Chen [this message]
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