[PATCH V3 0/2] improve -overcommit cpu-pm=on|off

[Zide Chen <zide.chen@intel.com>]

Currently, if running "-overcommit cpu-pm=on" on hosts that don't
have MWAIT support, the MWAIT/MONITOR feature is advertised to the
guest and executing MWAIT/MONITOR on the guest triggers #UD.

Typically #UD takes priority over VM-Exit interception checks and
KVM doesn't emulate MONITOR/MWAIT. This causes the guest fail to
boot.

V2:
- [PATCH 1]: took Thomas' suggestion for more generic fix
- [PATCH 2/3]: no changes

V3:
- dropped [PATCH 1/3]. Took the simpler approach not to re-order
  cpu_exec_realizefn() call.
- changed patch title in [PATCH V3 1/2]
- don't set CPUID_EXT_MONITOR in kvm_cpu_realizefn() 

Zide Chen (2):
  vl: Allow multiple -overcommit commands
  target/i386: Advertise MWAIT iff host supports

 system/vl.c               |  4 ++--
 target/i386/host-cpu.c    | 12 ------------
 target/i386/kvm/kvm-cpu.c | 11 +++++++++--
 3 files changed, 11 insertions(+), 16 deletions(-)

-- 
2.34.1