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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Fixes: https://github.com/oasis-tcs/virtio-spec/issues/7
Approved-by: https://www.oasis-open.org/committees/ballot.php?id=3184
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There are several sentence structures used throughout the text where an
article is missing. For example:
... allocated by driver.
or
Driver then notifies the device.
Standards documents normally use complete sentences so this patch adds
the missing articles required before the noun ("driver"):
... allocated by the driver.
or
The driver then notifies the device.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Fixes: https://github.com/oasis-tcs/virtio-spec/issues/7
Approved-by: https://www.oasis-open.org/committees/ballot.php?id=3184
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Support in-order requests for packed rings.
This allows selective write-out of used descriptors.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Approved-by: https://www.oasis-open.org/apps/org/workgroup/virtio/ballot.php?id=3177
Fixes: https://github.com/oasis-tcs/virtio-spec/issues/3
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Performance analysis of this is in my kvm forum 2016 presentation. The
idea is to have a r/w descriptor in a ring structure, replacing the used
and available ring, index and descriptor buffer.
This is also easier for devices to implement than the 1.0 layout.
Several more enhancements will be necessary to actually make this
efficient for devices to use.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Approved-by: https://www.oasis-open.org/apps/org/workgroup/virtio/ballot.php?id=3177
Fixes: https://github.com/oasis-tcs/virtio-spec/issues/3
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