- Update Xen patches to 3.7-rc3 and c/s 1202.
- extend base interfaces to support multi-page rings for
frontend/backend communication.
- blkback: allow using multiple page frontend communication ring.
- blkfront: allow using multiple page backend communication ring.
- ACPI: Store valid ACPI tables passed via early initrd in
reserved memblock areas.
- ACPI: Fix build when disabled.
- ACPI: Cleanup acpi_initrd_override declaration and remove
ifdefs.
- config.conf: Re-enable Xen configs.
- Update x86 config files.
- Delete patches.xen/xen3-acpi_override_2_2.patch.