linux-kernel - Re: [PATCH v7 00/11] vfio/pci: Allow MMIO regions to be exported through dma-buf

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Message-ID: <20251117083620.4660081a.alex@shazbot.org>
Date: Mon, 17 Nov 2025 08:36:20 -0700
From: Alex Williamson <alex@...zbot.org>
To: Christian König <christian.koenig@....com>
Cc: Leon Romanovsky <leon@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
 Logan Gunthorpe <logang@...tatee.com>, Jens Axboe <axboe@...nel.dk>,
 Robin Murphy <robin.murphy@....com>, Joerg Roedel <joro@...tes.org>,
 Will Deacon <will@...nel.org>,
 Marek Szyprowski <m.szyprowski@...sung.com>,
 Jason Gunthorpe <jgg@...pe.ca>,
 Andrew Morton <akpm@...ux-foundation.org>,
 Jonathan Corbet <corbet@....net>, Sumit Semwal <sumit.semwal@...aro.org>,
 Kees Cook <kees@...nel.org>,
 "Gustavo A. R. Silva" <gustavoars@...nel.org>,
 Ankit Agrawal <ankita@...dia.com>, Yishai Hadas <yishaih@...dia.com>,
 Shameer Kolothum <skolothumtho@...dia.com>,
 Kevin Tian <kevin.tian@...el.com>, Krishnakant Jaju <kjaju@...dia.com>,
 Matt Ochs <mochs@...dia.com>, linux-pci@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
 iommu@...ts.linux.dev, linux-mm@...ck.org, linux-doc@...r.kernel.org,
 linux-media@...r.kernel.org, dri-devel@...ts.freedesktop.org,
 linaro-mm-sig@...ts.linaro.org, kvm@...r.kernel.org,
 linux-hardening@...r.kernel.org, Alex Mastro <amastro@...com>,
 Nicolin Chen <nicolinc@...dia.com>,
 Vivek Kasireddy <vivek.kasireddy@...el.com>
Subject: Re: [PATCH v7 00/11] vfio/pci: Allow MMIO regions to be exported
 through dma-buf

On Tue, 11 Nov 2025 09:54:22 +0100
Christian König <christian.koenig@....com> wrote:

> On 11/10/25 21:42, Alex Williamson wrote:
> > On Thu,  6 Nov 2025 16:16:45 +0200
> > Leon Romanovsky <leon@...nel.org> wrote:
> >   
> >> Changelog:
> >> v7:
> >>  * Dropped restore_revoke flag and added vfio_pci_dma_buf_move
> >>    to reverse loop.
> >>  * Fixed spelling errors in documentation patch.
> >>  * Rebased on top of v6.18-rc3.
> >>  * Added include to stddef.h to vfio.h, to keep uapi header file independent.  
> > 
> > I think we're winding down on review comments.  It'd be great to get
> > p2pdma and dma-buf acks on this series.  Otherwise it's been posted
> > enough that we'll assume no objections.  Thanks,  
> 
> Already have it on my TODO list to take a closer look, but no idea when that will be.
> 
> This patch set is on place 4 or 5 on a rather long list of stuff to review/finish.

Hi Christian,

Gentle nudge.  Leon posted v8[1] last week, which is not drawing any
new comments.  Do you foresee having time for review that I should
still hold off merging for v6.19 a bit longer?  Thanks,

Alex

[1]https://lore.kernel.org/all/20251111-dmabuf-vfio-v8-0-fd9aa5df478f@nvidia.com/