Merge branch 'ppc-for-upstream' of git://github.com/agraf/qemu

Merge branch 'ppc-for-upstream' of git://github.com/agraf/qemu

* 'ppc-for-upstream' of git://github.com/agraf/qemu: (58 commits)
  target-ppc: Use NARROW_MODE macro for tlbie
  target-ppc: Use NARROW_MODE macro for addresses
  target-ppc: Use NARROW_MODE macro for comparisons
  target-ppc: Use NARROW_MODE macro for branches
  target-ppc: Fix add and subf carry generation in narrow mode
  target-ppc: Use QOM method dispatch for MMU fault handling
  target-ppc: Move ppc tlb_fill implementation into mmu_helper.c
  target-ppc: Split user only code out of mmu_helper.c
  mmu-hash64: Implement Virtual Page Class Key Protection
  mmu-hash*: Merge translate and fault handling functions
  mmu-hash*: Don't use full ppc_hash{32, 64}_translate() path for get_phys_page_debug()
  mmu-hash*: Correctly mask RPN from hash PTE
  mmu-hash*: Clean up real address calculation
  mmu-hash*: Clean up PTE flags update
  mmu-hash64: Factor SLB N bit into permissions bits
  mmu-hash*: Clean up permission checking
  mmu-hash32: Remove nx from context structure
  mmu-hash*: Don't update PTE flags when permission is denied
  mmu-hash32: Don't look up page tables on BAT permission error
  mmu-hash32: Cleanup BAT lookup
  ...