virtio — archive

[Michael S. Tsirkin]

--- content.tex 11 ++++++ ----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/content.tex b/content.tex index 9902756..2de0644 100644 --- a/content.tex +++ b/content.tex @@ -1328,16 +1328,17 @@ 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. Non-transitional devices, on a platform where a legacy driver for -- MST