linux-kernel - Re: [PATCH v4 0/8] iommu: Remove IOMMU_DEV_FEAT_SVA/

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Message-ID: <8440c210-3d98-492f-9212-c7ed3cf375e2@linux.intel.com>
Date: Wed, 16 Apr 2025 15:33:46 +0800
From: Baolu Lu <baolu.lu@...ux.intel.com>
To: Zhangfei Gao <zhangfei.gao@...aro.org>
Cc: baolu.lu@...ux.intel.com, Joerg Roedel <joro@...tes.org>,
 Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>,
 Jason Gunthorpe <jgg@...pe.ca>, Kevin Tian <kevin.tian@...el.com>,
 Dave Jiang <dave.jiang@...el.com>, Vinod Koul <vkoul@...nel.org>,
 Fenghua Yu <fenghuay@...dia.com>, Zhou Wang <wangzhou1@...ilicon.com>,
 iommu@...ts.linux.dev, linux-kernel@...r.kernel.org,
 Jason Gunthorpe <jgg@...dia.com>
Subject: Re: [PATCH v4 0/8] iommu: Remove IOMMU_DEV_FEAT_SVA/_IOPF

On 4/16/2025 3:29 PM, Zhangfei Gao wrote:
> On Thu, 13 Mar 2025 at 13:19, Lu Baolu<baolu.lu@...ux.intel.com> wrote:
>> The new method for driver fault reporting support relies on the domain
>> to specify a iopf_handler. The driver should detect this and setup the
>> HW when fault capable domains are attached.
>>
>> Move SMMUv3 to use this method and have VT-D validate support during
>> attach so that all three fault capable drivers have a no-op FEAT_SVA and
>> _IOPF. Then remove them.
>>
>> This was initiated by Jason. I'm following up to remove FEAT_IOPF and
>> further clean up.
>>
>> The whole series is also available at github:
>> https://github.com/LuBaolu/intel-iommu/commits/iommu_no_feat-v4
>>
>> Signed-off-by: Jason Gunthorpe<jgg@...dia.com>
>> Signed-off-by: Lu Baolu<baolu.lu@...ux.intel.com>
>>
> Will you re-spin this patchset, it is not in 6.15-rc.

Yes. I will rebase the patches and post a new version for v6.16 merge.

Thanks,
baolu