Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20150205' into staging

target-arm queue:
 * refactor/clean up armv7m_init()
 * some initial cleanup in the direction of supporting 64-bit EL3
 * fix broken synchronization of registers between QEMU and KVM
   for 32-bit ARM hosts (which among other things broke memory
   access via gdbstub)
 * fix flush-to-zero handling in FMULX, FRECPS, FRSQRTS and FRECPE
 * don't crash QEMU for UNPREDICTABLE BFI insns in A32 encoding
 * explain why virt board's device-to-transport mapping code is
   the way it is
 * implement mmu_idx values which match the architectural
   distinctions, and introduce the concept of a translation
   regime to get_phys_addr() rather than incorrectly looking
   at the current CPU state
 * update to upstream VIXL 1.7 (gives us correct code addresses
   when dissassembling pc-relative references)
 * sync system register state between KVM and QEMU for 64-bit ARM
 * support virtio on big-endian guests by implementing the
   "which endian is the guest now?" CPU method

# gpg: Signature made Thu 05 Feb 2015 14:02:16 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-target-arm-20150205: (28 commits)
  target-arm: fix for exponent comparison in recpe_f64
  target-arm: Guest cpu endianness determination for virtio KVM ARM/ARM64
  target-arm: KVM64: Get and Sync up guest register state like kvm32.
  disas/arm-a64.cc: Tell libvixl correct code addresses
  disas/libvixl: Update to upstream VIXL 1.7
  target-arm: Fix brace style in reindented code
  target-arm: Reindent ancient page-table-walk code
  target-arm: Use mmu_idx in get_phys_addr()
  target-arm: Pass mmu_idx to get_phys_addr()
  target-arm: Split AArch64 cases out of ats_write()
  target-arm: Don't define any MMU_MODE*_SUFFIXes
  target-arm: Use correct mmu_idx for unprivileged loads and stores
  target-arm: Define correct mmu_idx values and pass them in TB flags
  target-arm/translate-a64: Fix wrong mmu_idx usage for LDT/STT
  target-arm: Make arm_current_el() return sensible values for M profile
  cpu_ldst.h: Allow NB_MMU_MODES to be 7
  hw/arm/virt: explain device-to-transport mapping in create_virtio_devices()
  target-arm: check that LSB <= MSB in BFI instruction
  target-arm: Squash input denormals in FRECPS and FRSQRTS
  Fix FMULX not squashing denormalized inputs when FZ is set.
  ...

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

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