On 7/7/2020 12:41 AM, Paolo Bonzini wrote:
Currently, QEMU is overriding KVM_GET_SUPPORTED_CPUID's answer for
the WAITPKG bit depending on the "-overcommit cpu-pm" setting. This is a
bad idea because it does not even check if the host supports it, but it
can be done in x86_cpu_realizefn just
On 07/07/20 13:42, Maxim Levitsky wrote:
>> +bool kvm_has_waitpkg(void)
>> +{
>> +return has_msr_umwait;
> Note that this depends on the fix in the kernel
> to report this msr only when UMWAIT is supported.
> I personally don't mind that.
>
> If we want to support older kernels that don't,
> t
On Mon, 2020-07-06 at 12:41 -0400, Paolo Bonzini wrote:
> Currently, QEMU is overriding KVM_GET_SUPPORTED_CPUID's answer for
> the WAITPKG bit depending on the "-overcommit cpu-pm" setting. This is a
> bad idea because it does not even check if the host supports it, but it
> can be done in x86_cpu
Currently, QEMU is overriding KVM_GET_SUPPORTED_CPUID's answer for
the WAITPKG bit depending on the "-overcommit cpu-pm" setting. This is a
bad idea because it does not even check if the host supports it, but it
can be done in x86_cpu_realizefn just like we do for the MONITOR bit.
This patch move
