Enabling xVM on OpenSolaris

Another significant usability improvement that landed in build 126 is Gary and Bill's work on enabling Xen. Now, running xVM should be as simple as:

# pkg install xvm-gui
# echo 'set zfs:zfs_arc_max = 0x10000000' >>/etc/system # yes, you still need this, sadly
# svcadm enable -r milestone/xvm
# reboot

There's also a new Visual Panel for doing this if you prefer a graphical method. More in the flag day message.