linux-kernel - Re: [PATCH v4 00/17] iommufd: Add nesting infrastructure

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Date:   Thu, 12 Oct 2023 16:45:43 +0800
From:   Yi Liu <yi.l.liu@...el.com>
To:     Jason Gunthorpe <jgg@...dia.com>
CC:     <joro@...tes.org>, <alex.williamson@...hat.com>,
        <kevin.tian@...el.com>, <robin.murphy@....com>,
        <baolu.lu@...ux.intel.com>, <cohuck@...hat.com>,
        <eric.auger@...hat.com>, <nicolinc@...dia.com>,
        <kvm@...r.kernel.org>, <mjrosato@...ux.ibm.com>,
        <chao.p.peng@...ux.intel.com>, <yi.y.sun@...ux.intel.com>,
        <peterx@...hat.com>, <jasowang@...hat.com>,
        <shameerali.kolothum.thodi@...wei.com>, <lulu@...hat.com>,
        <suravee.suthikulpanit@....com>, <iommu@...ts.linux.dev>,
        <linux-kernel@...r.kernel.org>, <linux-kselftest@...r.kernel.org>,
        <zhenzhong.duan@...el.com>, <joao.m.martins@...cle.com>
Subject: Re: [PATCH v4 00/17] iommufd: Add nesting infrastructure

On 2023/10/11 00:53, Jason Gunthorpe wrote:
> On Thu, Sep 21, 2023 at 12:51:21AM -0700, Yi Liu wrote:
>> v4:
>>   - Separate HWPT alloc/destroy/abort functions between user-managed HWPTs
>>     and kernel-managed HWPTs
>>   - Rework invalidate uAPI to be a multi-request array-based design
>>   - Add a struct iommu_user_data_array and a helper for driver to sanitize
>>     and copy the entry data from user space invalidation array
>>   - Add a patch fixing TEST_LENGTH() in selftest program
>>   - Drop IOMMU_RESV_IOVA_RANGES patches
>>   - Update kdoc and inline comments
>>   - Drop the code to add IOMMU_RESV_SW_MSI to kernel-managed HWPT in nested translation,
>>     this does not change the rule that resv regions should only be added to the
>>     kernel-managed HWPT. The IOMMU_RESV_SW_MSI stuff will be added in later series
>>     as it is needed only by SMMU so far.
> 
> This doesn't apply to iommufd next so you will have to resend it

sure. I'm working with Nic on a new version.

-- 
Regards,
Yi Liu