[Qemu-devel] [0/27] Implement emulation of pSeries logical partitions (v6)

[David Gibson]

This patch series adds a "pseries" machine to qemu, allowing it to
emulate IBM pSeries logical partitions.  More specifically it
implements the interface defined by the "PowerPC Architecture Platform
Requirements" document (PAPR, or sPAPR for short).

Along the way we add a bunch of support for more modern ppc CPUs than
are currently supported.  It also makes some significant cleanups to
the translation code for hash page table based ppc MMUs.

Please apply.

---

Changes since v5 of this series:
 * Include source for SLOF as a git submodule
 * Move our private hcalls (well. only one so far) to a range
   explicitly reserved by PAPR for this purpose.
 * Allocate an ample 1024 irqs in the XICS controller, rather than
   having a somewhat dubious calculation of precisely how many we
   need.

Changes since v4 of this series:
 * Fix build breakages for powerpc targets other than ppc64 full system.
 * Since the pseries platform requires libfdt, only compile it when
   configured with --enable-fdt
 * Give an informative error if invoked with insufficient guest RAM to
   run the partition firmware.  Without this, giving insufficient RAM
   - such as qemu's default 64M - would lead to the firmware failing
   cryptically partway through boot.

Changes since v3 of this series:
 * Many, many checkpatch fixups
 * Integrated feedback from qemu-devel list
 * Added in-partition SLOF firmware

Changes since v2 of this series:
 * Assorted bugfixes and cleanups.

Changes since v1 of this series:
 * numerous coding style fixups
 * incorporated most review comments from initial version
 * moved to a wholly dynamic hypercall registration scheme
 * assorted other cleanups
 * many more patches implementing VIO devices