On 19/02/2020 17:21, Matwey V. Kornilov wrote:
> 19.02.2020 12:26, Matthias Brugger пишет:
>>
>>
>> On 05/02/2020 17:22, Guillaume Gardet wrote:
>>>
>>>
>>>> -----Original Message-----
>>>> From: Torsten Duwe <[email protected]>
>>>> Sent: 05 February 2020 16:41
>>>> To: Guillaume Gardet <[email protected]>
>>>> Cc: Josua Mayer <[email protected]>;
>>>> [email protected]
>>>> Subject: Re: [opensuse-arm] Re: New 32-bit Arm support needed for future
>>>> OBS
>>>> builds
>>>>
>>>> On Wed, Feb 05, 2020 at 03:15:28PM +0000, Guillaume Gardet wrote:
>>>>>
>>>>> No, that is the problem. With newer hardware, this option will be gone as
>>>>> 32-bit
>>>> mode will not be supported in kernel mode, so qemu/kvm cannot run armv7
>>>> kernel.
>>>>
>>>> Are you sure about this? I mean, those cores will not be able to run
>>>> 32-bit kernels
>>>> natively, sure, but my (maybe outdated) information is that kvm always runs
>>>> guest code in "user mode" and faults on privileged instructions, which are
>>>> then
>>>> emulated anyway.
>>>
>>> That's what I have been told. I will double check.
>>>
>>
>> Were you abe to double check? I belive we can run 32-bit VMs on 64-bit
>> machines.
>> The thing is that KVM for arm32 will be dropped in the future. I know we are
>
> Why it will be dropped?
>
Because it complicates the maintenance of KVM on ARM and there was a bug for a
long time and no one complained, what indicates no user who is relying on a
recent kernel for that.
Regards,
Matthias
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