VIA Eden X4

VIA Eden X4

[Matwey V. Kornilov]

Hello,

According to WikiPedia VIA claims x86 hardware assisted virtualization
for VIA Eden X4 CPU.
Does anybody know if it is supported by Linux KVM?

Re: VIA Eden X4

[Bandan Das]

"Matwey V. Kornilov" <matwey.kornilov@gmail.com> writes:

> Hello,
>
> According to WikiPedia VIA claims x86 hardware assisted virtualization
> for VIA Eden X4 CPU.
> Does anybody know if it is supported by Linux KVM?
>

I can't say for sure but my guess is that it should work since VIA implements
VT-x like virtualization extensions, so KVM will find VMX capable hardware.

Bandan

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Re: VIA Eden X4

[Matwey V. Kornilov]

2016-01-05 10:20 GMT+03:00 Bandan Das <bsd@redhat.com>:
> "Matwey V. Kornilov" <matwey.kornilov@gmail.com> writes:
>
>> Hello,
>>
>> According to WikiPedia VIA claims x86 hardware assisted virtualization
>> for VIA Eden X4 CPU.
>> Does anybody know if it is supported by Linux KVM?
>>
>
> I can't say for sure but my guess is that it should work since VIA implements
> VT-x like virtualization extensions, so KVM will find VMX capable hardware.
>

Do I understand correctly, that VIA engineers are not frequent guests
here and VIA doesn't disclosure docs for their CPUs?

> Bandan
>
>> --
>> To unsubscribe from this list: send the line "unsubscribe kvm" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html



-- 
With best regards,
Matwey V. Kornilov
http://blog.matwey.name
xmpp://0x2207@jabber.ru

Re: VIA Eden X4

[Alex Williamson]

On Tue, 2016-01-05 at 12:50 +0530, Bandan Das wrote:
> "Matwey V. Kornilov" <matwey.kornilov@gmail.com> writes:
> 
> > Hello,
> > 
> > According to WikiPedia VIA claims x86 hardware assisted
> > virtualization
> > for VIA Eden X4 CPU.
> > Does anybody know if it is supported by Linux KVM?
> > 
> 
> I can't say for sure but my guess is that it should work since VIA
> implements
> VT-x like virtualization extensions, so KVM will find VMX capable
> hardware.

I don't think it's that straightforward, ISTR the vmx capability on
previous VIA processors being broken, for instance:

https://bugs.launchpad.net/qemu/+bug/712416

Seems like Avi had investigated and found something pretty broken in
the implementation, but my google-foo isn't able to find the thread.  I
suspect nobody, maybe not even VIA, knows if it works on their latest
attempt.  Thanks,

Alex