Merge remote-tracking branch 'remotes/ehabkost/tags/x86-and-machine-pull-request...

Merge remote-tracking branch 'remotes/ehabkost/tags/x86-and-machine-pull-request' into staging

x86, machine, numa queue (2017-01-23)

# gpg: Signature made Mon 23 Jan 2017 23:26:59 GMT
# gpg:                using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/x86-and-machine-pull-request:
  kvm: Allow invtsc migration if tsc-khz is set explicitly
  kvm: Simplify invtsc check
  hw/core/null-machine: Add the possibility to instantiate a CPU and RAM
  qemu-options: Rename variables on the -numa "cpus" option
  MAINTAINERS: Add an entry for hw/core/null-machine.c
  machine: Make possible_cpu_arch_ids() return const pointer
  pc: don't return cpu pointer from pc_new_cpu() as it's not needed anymore
  pc: cleanup: move smbios_set_cpuid() into pc_build_smbios()
  arch_init: Remove unnecessary default_config_files table
  vl: Ensure the numa_post_machine_init func in the appropriate location
  i386: Return migration-safe field on query-cpu-definitions
  i386: Remove AMD feature flag aliases from Opteron models
  x86: add AVX512_VPOPCNTDQ features

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