Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

Bugfixes and making SCSI adapters IOMMU-friendly.

# gpg: Signature made Thu Mar 26 13:24:05 2015 GMT using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream:
  virtio-scsi-dataplane: fix memory leak for VirtIOSCSIVring
  misc: fix typos in copyright declaration
  exec: avoid possible overwriting of mmaped area in qemu_ram_remap
  sparc: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory
  mips: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory
  m68k: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory
  nbd: Fix up comment after commit e140177d
  vmw_pvscsi: use PCI DMA APIs
  megasas: use PCI DMA APIs
  cpus: Don't kick un-realized cpus.
  i6300esb: Fix signed integer overflow
  i6300esb: Correct endiannness
  fw_cfg: factor out initialization of FW_CFG_ID (rev. number)
  rcu tests: fix compilation on 32-bit ppc

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>