Merge branch 'upstream-merge' into next

Merge branch 'upstream-merge' into next

* upstream-merge: (69 commits)
  tcg/ppc64: Remove tcg_out_addi
  tcg/ppc: Remove tcg_out_addi
  vnc: Fix compilation with --enable-vnc-png
  virtio-serial: Fix segfault on guest boot
  Fix MinGW compilation when --enable-vnc-jpeg is specified
  TCG/Sparc64: use stack for TCG temps
  TCG/x86: use stack for TCG temps
  TCG/x86: use TCG_REG_CALL_STACK instead of TCG_REG_ESP
  TCG: remove broken stack allocation for call arguments
  TCG: fix negative frame offset calculations
  Delegate setup of TCG temporaries to targets
  cpu-exec.c: avoid AREG0 use
  Remove exec-all.h include directives
  Move cpu_has_work and cpu_pc_from_tb to cpu.h
  exec.h: fix coding style and change cpu_has_work to return bool
  cpu-exec: unify do_interrupt call
  m68k: use caller supplied CPUState for interrupt related stuff
  x86: use caller supplied CPUState for interrupt related stuff
  sparc: move do_interrupt to helper.c
  sparc: fix coding style of the area to be moved
  ...

Signed-off-by: Avi Kivity <avi@redhat.com>