I'm looking to see if it's possible to run Solaris guests in Xen but I'm getting conflicting information.

For Xen (community edition)
Solaris 11 can run in Dom0
For SPARC systems as well as x86 systems (Oracle Solaris 11 OS already has the paravirtualized drivers installed as part of the OS).
http://wiki.xen.org/wiki/DomU_Support_for_Xen

For Citrix Xen Server
Solaris can run in Xen Server but only in HVM mode.
http://forums.citrix.com/message.jsp...584774#1584774

From the book Oracle® Solaris 10 System Virtualization Essentials
http://my.safaribooksonline.com/book...t/ch04lev1sec4

But for some reason, it's not not listed as a supported guest OS in the tech specs:
http://www.citrix.com/English/ps2/pr...tentID=1681139

Do any version of Xen run Solaris (both SPARC and for x86) as a supported guest in any mode? Can you run Solaris 10 in Xen or different version of Solaris other than 10 in Xen Server?

AFAIK, Xen doesn't support SPARC so no OS running on SPARC will run on Xen.

There is no (more) support for Solaris as Dom0.

Recent Solaris releases (S10u9 and S11) should run as Xen guests (DomU).