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

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

x86 queue, 2018-10-30

* MSR-based feature support for
  MSR_IA32_ARCH_CAPABILITIES bits (Robert Hoo)
* Cascadelake-Server CPU model (Tao Xu)
* Add PKU on Skylake-Server CPU model (Tao Xu)
* Correct cpu_x86_cpuid(0xd) (Sebastian Andrzej Siewior)
* Remove dead code (Peter Maydell)

# gpg: Signature made Wed 31 Oct 2018 14:05:25 GMT
# gpg:                using RSA key 2807936F984DC5A6
# 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-next-pull-request:
  i386: Add PKU on Skylake-Server CPU model
  i386: Add new model of Cascadelake-Server
  x86: define a new MSR based feature word -- FEATURE_WORDS_ARCH_CAPABILITIES
  x86: Data structure changes to support MSR based features
  kvm: Add support to KVM_GET_MSR_FEATURE_INDEX_LIST and KVM_GET_MSRS system ioctl
  target/i386: Remove #ifdeffed-out icebp debugging hack
  i386: correct cpu_x86_cpuid(0xd)

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