Re: [PATCH V2 0/3] improve -overcommit cpu-pm=on|off

[Igor Mammedov <imammedo@redhat.com>]

On Fri, 24 May 2024 13:00:14 -0700
Zide Chen <zide.chen@intel.com> wrote:

> 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.

this is missing proper description how do you trigger issue
with reproducer and detailed description why guest sees MWAIT
when it's not supported by host.

> 
> V2:
> - [PATCH 1]: took Thomas' suggestion for more generic fix
> - [PATCH 2/3]: no changes
> 
> Zide Chen (3):
>   vl: Allow multiple -overcommit commands
>   target/i386: call cpu_exec_realizefn before x86_cpu_filter_features
>   target/i386: Move host_cpu_enable_cpu_pm into kvm_cpu_realizefn()
> 
>  system/vl.c               |  4 ++--
>  target/i386/cpu.c         | 24 ++++++++++++------------
>  target/i386/host-cpu.c    | 12 ------------
>  target/i386/kvm/kvm-cpu.c | 12 +++++++++---
>  4 files changed, 23 insertions(+), 29 deletions(-)
>