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[libvirt] [PATCH qom-cpu 0/7] disable kvm_mmu + -cpu "enforce" fixes (v3)

Changes on v3:
 - Patches 3-9 from v2 are now already on qom-cpu tree
 - Remove CONFIG_KVM #ifdefs by declaring fake KVM_* #defines on sysemu/kvm.h
 - Refactor code that uses the feature word arrays
   (to make it easier to add a new feature name array)
 - Add feature name array for CPUID leaf 0xC0000001

Changes on v2:
 - Now both the kvm_mmu-disable and -cpu "enforce" changes are on the same
 - Coding style fixes

Git tree for reference:
  git://github.com/ehabkost/qemu-hacks.git cpu-enforce-all.v3

The changes are a bit intrusive, but:

 - The longer we take to make "enforce" strict as it should (and make libvirt
   finally use it), more users will have VMs with migration-unsafe unpredictable
   guest ABIs. For this reason, I would like to get this into QEMU 1.4.
 - The changes in this series should affect only users that are already using
   the "enforce" flag, and I believe whoever is using the "enforce" flag really
   want the strict behavior introduced by this series.

Eduardo Habkost (7):
  kvm: Add fake KVM constants to avoid #ifdefs on KVM-specific code
  target-i386: Don't set any KVM flag by default if KVM is disabled
  target-i386: Disable kvm_mmu by default
  target-i386/cpu: Introduce FeatureWord typedefs
  target-i386: kvm_check_features_against_host(): Use feature_word_info
  target-i386/cpu.c: Add feature name array for ext4_features
  target-i386: check/enforce: Check all feature words

 include/sysemu/kvm.h |  14 ++++
 target-i386/cpu.c    | 193 ++++++++++++++++++++++++++++++++-------------------
 target-i386/cpu.h    |  15 ++++
 3 files changed, 150 insertions(+), 72 deletions(-)


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