Re: [PATCH 2/2] vfio: Make vfio-platform available on Aarch64 platforms only

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

On 27/2/25 18:27, Alex Williamson wrote:
> On Thu, 27 Feb 2025 09:32:46 +0100
> Eric Auger <eric.auger@redhat.com> wrote:
> 
>> Hi Cédric,
>>
>> On 2/26/25 9:47 AM, Cédric Le Goater wrote:
>>> VFIO Platforms was designed for Aarch64. Restrict availability to
>>> 64-bit host platforms.
>>>
>>> Cc: Eric Auger <eric.auger@redhat.com>
>>> Signed-off-by: Cédric Le Goater <clg@redhat.com>
>> Reviewed-by: Eric Auger <eric.auger@redhat.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>

>> As an outcome from last KVM forum, next step may be to simply remove
>> VFIO_PLATFORM from the qemu tree.
>>
>> We also need to make a decision wrt linux vfio platform driver. As I
>> can't test it anymore without hacks (my last tegra234 mgbe works are
>> unlikely to land on qemu side and lack traction on kernel side too),
>> either someone who can test it volunteers to take over the kernel
>> maintainership or we remove it from kernel too.
> 
> I think it's more than just a kernel maintainer stepping up to test,
> there really needs to be some in-kernel justification for the
> vfio-platform driver itself.  If it's only enabling out of tree use
> cases and there's nothing in-tree that's actually independently
> worthwhile, I don't really see why we shouldn't remove it and just let
> those out of tree use cases provide their own out of tree versions of
> vfio-platform.  Thanks,

Now (1 week before freeze for release) is a good time to post a patch
deprecating it :)