02

Xen support finally landed in upstream Linux. Okay, it is rather limited yet, but usable.

It supports the following:

• Unprivileged domain (domU).
• x86_32 (i386 without PAE) and x86_32p (i386 with PAE).
• Console.
• netfront and blkfront.

Changes to the old Xen patch:

• Block devices does not support takeover of hdXY and sdXY. Use xvcX (xvca, xvcb, ...) as device names.
• Console is hvc0. You must supply console=hvc0 at the command line. (Use the extra definition in the Xen domain config file.)

Yet missing things:

• Suspend, resume (also makes migration impossible).
• Ballooning.
• x86_64. Xen upstream currently waits for an unified x86 tree.
• Privileged domain (dom0).
• netback, blkback, pciback and pcifront.