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SubjectRe: [PATCH v2 0/7] x86/kvm/hyper-v: Implement KVM_GET_SUPPORTED_HV_CPUID
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Paolo Bonzini <pbonzini@redhat.com> writes:

> On 17/12/18 11:30, Vitaly Kuznetsov wrote:
>>> Queued, thanks. I moved this above the direct EOI series so that
>>> KVM_CAP_HYPERV_STIMER_DIRECT need not exist at any point of the history.
>>>
>> Thanks! Just to make sure (and to conclude our discussion with Roman):
>> with your Qemu maintainer hat on, do you agree with the design decision
>> that KVM_GET_SUPPORTED_HV_CPUID's output value changes when
>> KVM_CAP_HYPERV_ENLIGHTENED_VMCS gets enabled? This differs from
>> KVM_GET_SUPPORTED_CPUID (where we always list all feature bits even if
>> they require explicit enablement)?
>
> It doesn't really matter, since the old capability cannot be removed.
> If you want to change it with a patch on top, that's also okay with me.

Ok, let's leave it as it is: maybe some other userspace (which doesn't
use legacy capabilities) will be grateful :-)

--
Vitaly

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