Xen users - May 2012 - I can run any livecd as domU, using ParavirtOp

Hello
Do not know if I''m mistaken, or I need to look more on the Internet.
I run a rescue cdlive, especially SystemRescueCd.
From what I understand now all have kernel support in dom0 and domU
ParavirtOps therefore concluded that it should be able to run
SystemRescueCd (kernel 3.0.13)

This is so? I can run SystemRescueCd, modifying one parameter of
isolinux SystemRescueCd?

Thanks for being up here. (I too am sorry my English)