On Tue, Sep 04, 2012 at 12:50:55 +0100, Daniel P. Berrange wrote:
When I think of upgrade issues, i consider the scenario where the new libvirt is configured in the same way as the old livirt, and we need to make sure the guest behaviour remains the same. This scenario you describe obviously doesn't fall under that, since you're enabling new behaviour that was not previously possible. I so don't think that is an upgrade problem, but rather just a case of defining what the new behaviour should be.
IMHO, the behaviour is thus
- A single <seclabel> with no model=XXX attribute, refers to the first security driver - Multiple <seclabel> with explicit model=XXX attributes refer to the corresponding driver - Multiple <seclabel> with no model=XX -> forbidden config
If you want to set behaviour for the secondary, or tertiary security drivers then you are required to provide multiple <seclabel> elements with explicit model=XXXX attributes. We shouldn't try to abuse a single <seclabel> element to set properties against multiple security drivers.
Fair enough and works for me :-) We ended up with a clearly defined behavior, which is worth including in formatdomain.html Jirka