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Date: Sun, 13 Sep 2026 19:52:44 +0300
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 =?iso-8859-1?Q?K=F6nig?= <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>,
	=?iso-8859-1?Q?Bj=F6rn_T=F6pel?= <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
Message-ID: <20260913165244.GW13683@unreal>
References: <20260911214200.33793-1-matt@ozlabs.org>
 <20260911214200.33793-10-matt@ozlabs.org>
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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