Bug 771249

Summary: Addition of PCI reserved device behavior to libvirt errata notes.
Product: Red Hat Enterprise Linux 6 Reporter: Jamie Bainbridge <jbainbri>
Component: doc-Technical_NotesAssignee: Eliska Slobodova <eslobodo>
Status: CLOSED CURRENTRELEASE QA Contact: Martin Prpič <mprpic>
Severity: medium Docs Contact:
Priority: medium    
Version: 6.4Keywords: Documentation
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
URL: https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.2_Technical_Notes/libvirt.html#RHSA-2011-1513
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-01-12 17:19:00 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Jamie Bainbridge 2012-01-02 22:31:03 UTC 
Description of problem:

Previously fixed issue https://bugzilla.redhat.com/show_bug.cgi?id=692355 (released as errata http://rhn.redhat.com/errata/RHBA-2011-1513.html) includes behavior which customers should be aware of. As noted in Comment 8 of https://bugzilla.redhat.com/show_bug.cgi?id=766216 Engineering believe this should be in the errata notes.

Something like this would work:

Previously, libvirt assigned PCI IDs to virtual devices on an "as needed" basis. This has been changed to specifically reserve specific device IDs for virtual device types, notably 0x01 for the IDE controller and 0x02 for the VGA device. Customers migrating guests with other device types on these device IDs will need to manually edit their guest XML files to move devices off reserved IDs.