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authormstsirkin <mstsirkin@0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652>2014-03-02 21:35:23 +0000
committermstsirkin <mstsirkin@0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652>2014-03-02 21:35:23 +0000
commitea07d76b67881e6126b4bb3bf10541f83deeea5e (patch)
tree405a7bd7b3fa0eb91f297300c367de3d088cab7b
parent4b7a5dcdecb5947a68e9819588f66772b8d46a35 (diff)
leacy: layout detection confirmance
Change accepted on VIRTIO TC Meeting, 3 December 2013 Signed-off-by: Michael S. Tsirkin <mst@redhat.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@295 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
-rw-r--r--content.tex11
1 files changed, 6 insertions, 5 deletions
diff --git a/content.tex b/content.tex
index b1a293f..20a61d6 100644
--- a/content.tex
+++ b/content.tex
@@ -1510,16 +1510,17 @@ capability list.
Therefore:
-Transitional devices should expose the Legacy Interface in I/O
+Transitional devices MUST expose the Legacy Interface in I/O
space in BAR0.
-Transitional drivers should look for the Virtio PCI
+Transitional drivers MUST look for the Virtio PCI
Capabilities on the capability list.
-If these are not present, driver should assume a legacy device.
+If these are not present, driver MUST assume a legacy device,
+and use it through the legacy interface.
-Non-transitional drivers should look for the Virtio PCI
+Non-transitional drivers MUST look for the Virtio PCI
Capabilities on the capability list.
-If these are not present, driver should assume a legacy device,
+If these are not present, driver MUST assume a legacy device,
and fail gracefully.
\paragraph{MSI-X Vector Configuration}\label{sec:Virtio Transport Options / Virtio Over PCI Bus / PCI-specific Initialization And Device Operation / Device Initialization / MSI-X Vector Configuration}