From: Leon Romanovsky <leon@kernel.org>
To: Matt Evans <matt@ozlabs.org>
Cc: "Alex Williamson" <alex@shazbot.org>,
"Jason Gunthorpe" <jgg@nvidia.com>,
"Alex Mastro" <amastro@fb.com>,
"Christian König" <christian.koenig@amd.com>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Logan Gunthorpe" <logang@deltatee.com>,
"Kevin Tian" <kevin.tian@intel.com>,
"Pranjal Shrivastava" <praan@google.com>,
"Longfang Liu" <liulongfang@huawei.com>,
"Mahmoud Adam" <mngyadam@amazon.de>,
"David Matlack" <dmatlack@google.com>,
"Björn Töpel" <bjorn@kernel.org>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Ankit Agrawal" <ankita@nvidia.com>,
"Alistair Popple" <apopple@nvidia.com>,
"Vivek Kasireddy" <vivek.kasireddy@intel.com>,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org,
kvm@vger.kernel.org, linux-pci@vger.kernel.org
Subject: Re: [PATCH v6 9/9] vfio/pci: Permanently revoke a DMABUF on request
Date: Sun, 13 Sep 2026 19:52:44 +0300 [thread overview]
Message-ID: <20260913165244.GW13683@unreal> (raw)
In-Reply-To: <20260911214200.33793-10-matt@ozlabs.org>
On Fri, Sep 11, 2026 at 10:41:57PM +0100, Matt Evans wrote:
> Expand the VFIO DMABUF revocation state to three states:
> Not revoked, temporarily revoked, and permanently revoked.
The thing is that "temporarily revoked" is actually the standard
invalidate_mappings/move_notify mechanism of DMABUF, which wasn't good
for VFIO.
Thanks
prev parent reply other threads:[~2026-09-13 16:52 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-11 21:41 [PATCH v6 0/9] vfio/pci: Add mmap() for DMABUFs Matt Evans
2026-09-11 21:41 ` [PATCH v6 1/9] vfio/pci: Remove DMABUF export dependency on vdev->memory_lock Matt Evans
2026-09-11 21:41 ` [PATCH v6 2/9] vfio/pci: Un-revoke DMABUFs in LOW_POWER_ENTRY_WITH_WAKEUP resume Matt Evans
2026-09-11 21:41 ` [PATCH v6 3/9] dma-buf: Export dma_buf_set_name() Matt Evans
2026-09-11 21:41 ` [PATCH v6 4/9] vfio/pci: Add a helper to look up PFNs for DMABUFs Matt Evans
2026-09-11 21:41 ` [PATCH v6 5/9] vfio/pci: Add a helper to create a DMABUF for a BAR-map VMA Matt Evans
2026-09-11 21:41 ` [PATCH v6 6/9] vfio/pci: Convert BAR mmap() to use a DMABUF Matt Evans
2026-09-11 21:41 ` [PATCH v6 7/9] vfio/pci: Clean up BAR zap and revocation Matt Evans
2026-09-11 21:41 ` [PATCH v6 8/9] vfio/pci: Support mmap() of a VFIO DMABUF Matt Evans
2026-09-11 21:41 ` [PATCH v6 9/9] vfio/pci: Permanently revoke a DMABUF on request Matt Evans
2026-09-13 16:52 ` Leon Romanovsky [this message]
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