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authorrusty <rusty@0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652>2014-05-12 01:57:23 +0000
committerrusty <rusty@0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652>2014-05-12 01:57:23 +0000
commitc6cdebe2743c70da09a47ab8b4fa7fbf94e95913 (patch)
tree4f2056db1513c54503286c65ed0d8adebc0f7112 /content.tex
parent21f3413a639a8412dfe037b371e9aa0ea9d027d0 (diff)
VIRTIO-103: PCI: Note that turning off queue_enable is not supported.
As passed at meeting 2014-05-06: https://lists.oasis-open.org/archives/virtio/201405/msg00016.html Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@365 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
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@@ -1278,6 +1278,8 @@ with \field{queue_enable}.
After writing 0 to \field{device_status}, the driver MUST wait for a read of
\field{device_status} to return 0 before reinitializing the device.
+The driver MUST NOT write a 0 to \field{queue_enable}.
+
\subsubsection{Notification structure layout}\label{sec:Virtio Transport Options / Virtio Over PCI Bus / PCI Device Layout / Notification capability}
The notification location is found using the VIRTIO_PCI_CAP_NOTIFY_CFG