linux-kernel - Re: [PATCH v6 00/10] IOMMUFD: Deliver IO page faults to user space

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Message-ID: <4ba5a1a6-80f2-46eb-84f7-921b9ac27efc@linux.intel.com>
Date: Thu, 13 Jun 2024 14:46:53 +0800
From: Baolu Lu <baolu.lu@...ux.intel.com>
To: Jason Gunthorpe <jgg@...dia.com>
Cc: baolu.lu@...ux.intel.com, Kevin Tian <kevin.tian@...el.com>,
 Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
 Robin Murphy <robin.murphy@....com>,
 Jean-Philippe Brucker <jean-philippe@...aro.org>,
 Nicolin Chen <nicolinc@...dia.com>, Yi Liu <yi.l.liu@...el.com>,
 Jacob Pan <jacob.jun.pan@...ux.intel.com>,
 Joel Granados <j.granados@...sung.com>, iommu@...ts.linux.dev,
 virtualization@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 00/10] IOMMUFD: Deliver IO page faults to user space

On 6/12/24 9:54 PM, Jason Gunthorpe wrote:
> On Mon, May 27, 2024 at 12:05:07PM +0800, Lu Baolu wrote:
>> This series implements the functionality of delivering IO page faults to
>> user space through the IOMMUFD framework. One feasible use case is the
>> nested translation. Nested translation is a hardware feature that
>> supports two-stage translation tables for IOMMU. The second-stage
>> translation table is managed by the host VMM, while the first-stage
>> translation table is owned by user space. This allows user space to
>> control the IOMMU mappings for its devices.
> This looks pretty close, will you post a v7 with the minor changes?

Yes. Sure.

Best regards,
baolu