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

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

* x86 updates for Intel errata (myself, Eduardo)
* the big ugly list of x86 VMX features, which was targeted for 5.0 but
caused a Libvirt regression (myself)

# gpg: Signature made Thu 21 Nov 2019 15:35:13 GMT
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# 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:
  i386: Add -noTSX aliases for hle=off, rtm=off CPU models
  i386: Add new versions of Skylake/Cascadelake/Icelake without TSX
  target/i386: add support for MSR_IA32_TSX_CTRL
  target/i386: add VMX features to named CPU models

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