virtio — archive

[PATCH] feedback: clarify device status bits

From: Michael S. Tsirkin
To: [email protected]
Date: Mon, 24 Feb 2014 00:04:00 -0000

VIRTIO-70 Cc: Patrick Durusau <[email protected]> --- content.tex 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/content.tex b/content.tex index 14a1361..043c185 100644 --- a/content.tex +++ b/content.tex @@ -14,8 +14,13 @@ device consists of the following parts: section{field{Device Status} Field}label{sec:Basic Facilities of a Virtio Device / Device Status Field} -The driver MUST update the field{device status} field in the order below to -indicate its progress. This provides a simple low-level diagnostic: +During device initialization by a driver, +the driver follows the sequence of steps specified in +label{sec:General Initialization And Device Operation / Device +Initialization}. +The driver MUST update the field{device status} field, +setting bits to indicate the completed steps of this sequence. +This provides a simple low-level diagnostic: it's most useful to imagine them hooked up to traffic lights on the console indicating the status of each device. The driver MUST NOT clear a field{device status} bit. -- MST