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[win-pv-devel] PDO revision numbers


  In testing, it has become apparent that there is a PDO namespace clash 
between the Xen Project PV drivers and their immediate ancestor; the XenServer 
7.x PV drivers. To avoid this I propose to change the PDO revision scheme 

The upper byte (i.e. first to appear a textual representation) of the PDO 
revision will encode the major version number of the bus driver that creates it.

This means, of course, that moving to a new driver major number will 
immediately invalidate any child driver binding, but I imagine that's almost 
certainly something that changing the driver major number *should* do.

If anyone has any issues with this then please shout.


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