Re: [PATCH] KVM: VMX: require virtual NMI support

[Paolo Bonzini <pbonzini@redhat.com>]

On 27/10/2017 10:38, Fabian Grünbichler wrote:
> On Wed, Oct 25, 2017 at 11:07:54AM +0200, Fabian Grünbichler wrote:
>> On Wed, Oct 25, 2017 at 10:40:11AM +0200, Paolo Bonzini wrote:
>>> On 25/10/2017 10:12, Fabian Grünbichler wrote:
>>>> any update on this? 4.14 is soon out the door, and 4.13 with the
>>>> breaking change just got released as part of Ubuntu 17.10 / Artful..
>>>
>>> I had posted a patch on October 10th, but no one replied with test results.
>>>
>>
>> sorry, missed the (second) thread.
>>
>> currently building, will get back with test results ASAP.
> 
> so, while we haven't found any affected hardware in our test lab (not
> even in the to-be-discarded pile), feedback from users has been positive
> across the board for the following CPUs which were not able to use KVM
> without the patch:
> 
> - Intel Xeon 3040 (Conroe)
> - Intel Xeon 5050 (Dempsey)
> - Intel Xeon 5130 (Woodcrest)
> - Intel Xeon E3-1256L V2 (Ivy Bridge)

Ivy Bridge definitely worked without the patch.

Can you send me a link to the exact patch you applied (pastebin or
something like that)?

Thanks,

Paolo

> - Intel Core 2 Duo T5600 (Merom)
> 
> with no negative reports so far[1]. if you want more detailed
> information like vmxcap or cpuinfo, those can probably be requested.
> 
> the kernel used is based on Ubuntu's 4.13.0-16.19 kernel, which is based
> on 4.13.4.
> 
> I'll monitor the thread for more feedback one way or another, and
> forward any problems that seem relevant.
> 
> thanks!
>