From: Pranjal Shrivastava <praan@google.com>
To: Leon Romanovsky <leon@kernel.org>
Cc: Alex Williamson <alex@shazbot.org>,
Ankit Agrawal <ankita@nvidia.com>, Jason Gunthorpe <jgg@ziepe.ca>,
Kevin Tian <kevin.tian@intel.com>,
Vivek Kasireddy <vivek.kasireddy@intel.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH vfio-rc] vfio: Prevent from pinned DMABUF importers to attach to VFIO DMABUF
Date: Thu, 22 Jan 2026 06:14:29 +0000 [thread overview]
Message-ID: <aXHARbpAM9lRuwTN@google.com> (raw)
In-Reply-To: <20260121-vfio-add-pin-v1-1-4e04916b17f1@nvidia.com>
On Wed, Jan 21, 2026 at 05:45:02PM +0200, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro@nvidia.com>
>
> Some pinned importers, such as non-ODP RDMA ones, cannot invalidate their
> mappings and therefore must be prevented from attaching to this exporter.
>
> Fixes: 5d74781ebc86 ("vfio/pci: Add dma-buf export support for MMIO regions")
> Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
> ---
> This is an outcome of this discussion about revoke functionality.
> https://lore.kernel.org/all/20260121134712.GZ961572@ziepe.ca
>
> Thanks
> ---
> drivers/vfio/pci/vfio_pci_dmabuf.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
Reviewed-by: Pranjal Shrivastava <praan@google.com>
Thanks
next prev parent reply other threads:[~2026-01-22 6:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-21 15:45 [PATCH vfio-rc] vfio: Prevent from pinned DMABUF importers to attach to VFIO DMABUF Leon Romanovsky
2026-01-21 16:03 ` Jason Gunthorpe
2026-01-22 6:14 ` Pranjal Shrivastava [this message]
2026-01-23 17:34 ` Alex Williamson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=aXHARbpAM9lRuwTN@google.com \
--to=praan@google.com \
--cc=alex@shazbot.org \
--cc=ankita@nvidia.com \
--cc=jgg@ziepe.ca \
--cc=kevin.tian@intel.com \
--cc=kvm@vger.kernel.org \
--cc=leon@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=vivek.kasireddy@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox