Merge branch 'upstream-merge'

Merge branch 'upstream-merge'

* upstream-merge: (326 commits)
  bsd-user: fix build
  x86: rename op_helper.c to seg_helper.c
  x86: split off memory access helpers
  x86: split off misc helpers
  x86: split off SMM helpers
  x86: split off SVM helpers
  x86: split off integer helpers
  x86: split off condition code helpers
  x86: prepare eflags helpers for general use
  x86: split condition code and shift templates
  x86: fix coding style in helper_template.h
  x86: improve SSE table type safety
  x86: split off FPU helpers
  x86: fix coding style in ops_sse.h
  x86: avoid an extern declaration
  x86: split off exception handlers
  x86: avoid AREG0 for exceptions
  x86: prepare op_helper.c for splitting
  Add a memory barrier to DMA functions
  pseries: Implement IOMMU and DMA for PAPR PCI devices
  ...

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>