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3 Commits

Author SHA1 Message Date
Eugenio Pérez
7a9dc249e7 Documentation: Add documentation for VDUSE Address Space IDs 
Address Space IDs allows the VDUSE framework to support devices able to
expose different virtqueues to different part of the drivers.  For
example, to let QEMU handle the net device control virtqueue, so QEMU
always knows the state of the device like mac address or number of
queues enabled, while leaving the dataplane passthrough to the guest
intact.  This enables live migration.

Expands the VDUSE documentation to explain how to use the new ioctls or
the new struct members of old ioctls.

Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20260119143306.1818855-14-eperezma@redhat.com>
 2026-01-28 15:32:18 -05:00
Randy Dunlap
09b6addf64 VDUSE: fix documentation underline warning 
Fix a VDUSE documentation build warning:

Documentation/userspace-api/vduse.rst:21: WARNING: Title underline too short.

Fixes: 7bc7f61897 ("Documentation: Add documentation for VDUSE")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Xie Yongji <xieyongji@bytedance.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Link: https://lore.kernel.org/r/20211006202904.30241-1-rdunlap@infradead.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Xie Yongji <xieyongji@bytedance.com>
Acked-by: Jason Wang <jasowang@redhat.com>
 2021-10-13 08:42:07 -04:00
Xie Yongji
7bc7f61897 Documentation: Add documentation for VDUSE 
VDUSE (vDPA Device in Userspace) is a framework to support
implementing software-emulated vDPA devices in userspace. This
document is intended to clarify the VDUSE design and usage.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210831103634.33-14-xieyongji@bytedance.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2021-09-06 07:20:58 -04:00