[Xen-users] Why does domU Windows have to be re-registered after Xen 3.1.0 dom0 upgrade

[Derek <xen@xxxxxxxxxxxxxxxx>]

Hi all,

Just wondering if anybody knows the answer to this mystery?

I upgraded my Dom0 from Xen 3.0.4 + kernel 2.6.16.33-xen to Xen 3.1.0 + kernel 2.6.18-xen.

After the upgrade, my domU (WInXP home edition) popped up a message saying that it needed to be re-registered with Microsoft, owing to significant changes in the hardware environment on which it is running.  Something about windows genuine advantage (ie. they suspect it's a pirate copy?)

Just wondering...  Does anybody know what changes these might be?  There's nothing obvious that I can tell, but something about my new Xen 3.1.0 environment is different enough to upset Microsoft.  It's the same memory size, same peripherals etc.

The only thing I can think of is PAE versus non-PAE.  My new 3.1.0 installation is PAE, my old one was not (as far as I know anyway).   Could that be it?

Not critical that I get to the bottom of this, but I'm curious.

Derek.
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