Version Control Commit by rusty

[workgroup_mailer@lists.oasis-open.org]

Author: rusty
Date: 2013-10-31 05:28:01 +0000 (Thu, 31 Oct 2013)
New Revision: 74
Web View: https://tools.oasis-open.org/version-control/browse/wsvn/virtio/?rev=74&sc=1

Modified:
   virtio-v1.0-wd01-part1-specification.txt
Log:
Configuration (read) atomicity.

Aka issue VIRTIO-35.

This is solved per transport:
1) PCI: use the 8 bit reserved field.
	Assume that if you really change that fast, you'll do it lazily on
	config space read.
2) MMIO (already solved by v2 update)
3) CCW: no transport changes.
	They always read/write the entire thing.  This just shows that
	Cornelia is smarter than I am.

Signed-off-by: Rusty Russell <rusty@au1.ibm.com>