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

[Eric Auger <eric.auger@redhat.com>]

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>

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.

Taking this opportunity to add Will, Marc, Peter in CC

Thanks

Eric
> ---
>  hw/vfio/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/vfio/Kconfig b/hw/vfio/Kconfig
> index 6ed825429a9151fcdff33e95d1a310210689b258..885630e8d30c656500fcd7dbb3f26a4c0113a17a 100644
> --- a/hw/vfio/Kconfig
> +++ b/hw/vfio/Kconfig
> @@ -19,7 +19,7 @@ config VFIO_PLATFORM
>      bool
>      default y
>      select VFIO
> -    depends on LINUX && PLATFORM_BUS
> +    depends on LINUX && PLATFORM_BUS && AARCH64
>  
>  config VFIO_XGMAC
>      bool