On Wed, Aug 14, 2013 at 12:54:06PM +0200, Fabio Fantoni wrote:
I retried with the correct parameters and on both cases (2 gb of ram working and 4gb of ram not working) I get only this one more line on qemu log: Start bios (version debian/1.7.3-1-1-ga76c6f1-dirty-20130813_122010-test)
Xen moves the debug port to 0xe9 - can you try again with iobase=0xe9. (There should be some way to tell xen to log 0xe9 on its own, but I'm not familiar with xen.)
-Kevin