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

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Message-ID: <20240612135426.GA2151677@nvidia.com>
Date: Wed, 12 Jun 2024 10:54:26 -0300
From: Jason Gunthorpe <jgg@...dia.com>
To: Lu Baolu <baolu.lu@...ux.intel.com>
Cc: 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 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?

Thanks,
Jasno