kvm status on lsk-3.14

kvm status on lsk-3.14

[Stuart Yoder]

Chris,

On the Linaro wiki there is an ARMv8 status page
https://wiki.linaro.org/LSK/ARMv8

...that seems a bit out of date.  It reports that KVM
support on the Linaro 3.14 kernel had a "target" of
release 14.10 (last October).

I see ~70 "arm64:" + "kvm:" patches added or backported
to the Linaro 3.14 kernel.  Is KVM considered 'supported'
in the latest lsk-3.14? If yes, are there any known
limitations or anything missing?

We have a customer interested in 3.14 on 
ARMv8 and would like to understand what I can say
about KVM support on the Linaro 3.14 kernel.

Thanks,
Stuart

Re: kvm status on lsk-3.14

[Christoffer Dall]

On Wed, Sep 02, 2015 at 04:56:46PM +0000, Stuart Yoder wrote:
> Chris,
> 
> On the Linaro wiki there is an ARMv8 status page
> https://wiki.linaro.org/LSK/ARMv8
> 
> ...that seems a bit out of date.  It reports that KVM
> support on the Linaro 3.14 kernel had a "target" of
> release 14.10 (last October).
> 
> I see ~70 "arm64:" + "kvm:" patches added or backported
> to the Linaro 3.14 kernel.  Is KVM considered 'supported'
> in the latest lsk-3.14? If yes, are there any known
> limitations or anything missing?

We've backported most of the functionality and fixes up until 4.0, I
believe.

> 
> We have a customer interested in 3.14 on 
> ARMv8 and would like to understand what I can say
> about KVM support on the Linaro 3.14 kernel.
> 

The biggest weakness is probably lack of testing for virtualization
purposes.  I'm not aware of anyone haveing done any serious testing on
LSK with KVM.

Cc'ing Kevin for his comments on the testing and status aspect.

Thanks,
-Christoffer

Re: kvm status on lsk-3.14

[Kevin Hilman]

Christoffer Dall <christoffer.dall@linaro.org> writes:

> On Wed, Sep 02, 2015 at 04:56:46PM +0000, Stuart Yoder wrote:
>> Chris,
>> 
>> On the Linaro wiki there is an ARMv8 status page
>> https://wiki.linaro.org/LSK/ARMv8
>> 
>> ...that seems a bit out of date.  It reports that KVM
>> support on the Linaro 3.14 kernel had a "target" of
>> release 14.10 (last October).
>> 
>> I see ~70 "arm64:" + "kvm:" patches added or backported
>> to the Linaro 3.14 kernel.  Is KVM considered 'supported'
>> in the latest lsk-3.14? If yes, are there any known
>> limitations or anything missing?
>
> We've backported most of the functionality and fixes up until 4.0, I
> believe.
>
>> 
>> We have a customer interested in 3.14 on 
>> ARMv8 and would like to understand what I can say
>> about KVM support on the Linaro 3.14 kernel.
>> 
>
> The biggest weakness is probably lack of testing for virtualization
> purposes.  I'm not aware of anyone haveing done any serious testing on
> LSK with KVM.
>
> Cc'ing Kevin for his comments on the testing and status aspect.

We're not doing any thorough testing, but at kernelci.org we are doing
basic boot testing of KVM guest on a few platforms (x86, arm, arm64.)
Boot results/logs are available at kernelci.org[1]

Kevin

[1] http://kernelci.org/job/lsk/branch/local:linux-linaro-lsk-v3.14/