Re: [PATCH] drivers/virtio: Enable virtio mem for ARM64

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On 18.01.22 11:43, Michael S. Tsirkin wrote:
> On Tue, Jan 18, 2022 at 09:38:21AM +0100, David Hildenbrand wrote:
>> On 18.01.22 02:34, Gavin Shan wrote:
>>> This enables virtio-mem device support by allowing to enable the
>>> corresponding kernel config option (CONFIG_VIRTIO_MEM) on the
>>> architecture.
>>>
>>> Signed-off-by: Gavin Shan <gshan@xxxxxxxxxx>
>>> ---
>>>  drivers/virtio/Kconfig | 2 +-
>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
>>> index 34f80b7a8a64..bf3f6ebdaa3b 100644
>>> --- a/drivers/virtio/Kconfig
>>> +++ b/drivers/virtio/Kconfig
>>> @@ -106,7 +106,7 @@ config VIRTIO_BALLOON
>>>  config VIRTIO_MEM
>>>  	tristate "Virtio mem driver"
>>>  	default m
>>> -	depends on X86_64
>>> +	depends on X86_64 || ARM64
>>>  	depends on VIRTIO
>>>  	depends on MEMORY_HOTPLUG
>>>  	depends on MEMORY_HOTREMOVE
>>
>> With MEMBLOCK_DRIVER_MANAGED in place upstream, kexec should be fine.
>>
>>
>> Can you adjust/rephrase the comment as well? Like
>>
>> diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
>> index 34f80b7a8a64..88028ca01c8f 100644
>> --- a/drivers/virtio/Kconfig
>> +++ b/drivers/virtio/Kconfig
>> @@ -116,8 +116,9 @@ config VIRTIO_MEM
>>          This driver provides access to virtio-mem paravirtualized memory
>>          devices, allowing to hotplug and hotunplug memory.
>>  
>> -        This driver was only tested under x86-64, but should theoretically
>> -        work on all architectures that support memory hotplug and hotremove.
>> +        This driver was only tested under x86-64 and arm64, but should
>> +        theoretically work on all architectures that support memory hotplug and
>> +        hotremove.
>>  
>>          If unsure, say M.
>>  
>>
>>
>> Acked-by: David Hildenbrand <david@xxxxxxxxxx>
> 
> with this:
> Acked-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
> 
> I guess I will merge this? It's a small change so - let's go for this
> release straight away?

Yes, no need to wait for the next cycle.


-- 
Thanks,

David / dhildenb

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