bitkeeper revision 1.1236.1.164 (424aed36IaX4v3-NGAT_MnCdUsD1yQ)

bitkeeper revision 1.1236.1.164 (424aed36IaX4v3-NGAT_MnCdUsD1yQ)

Split mmu_update() hypercall into mmu_update() and mmuext_op().
All MMUEXT_* ops are now done via the latter hypercall. This allows
more arguments to be passed in a nicer way to mmuext operations.
Linux 2.4, 2.6 and control tools all use the new interface. The BSDs
will need some work, but shouldn't be too hard (and they can be moved
to writable pagetables at the same time :-) ).
Signed-off-by: Keir Fraser <keir@xensource.com>