Re: [PATCH v3 27/28] drm/intel/pciids: Add match with VFIO override

[Lucas De Marchi]

On Thu, Oct 30, 2025 at 09:31:34PM +0100, Michał Winiarski wrote:
> In order to allow VFIO users to choose the right driver override, VFIO
> driver variant used for VF migration needs to use Intel Graphics PCI
> IDs.
> Add INTEL_VGA_VFIO_DEVICE match that sets VFIO override_only.
>
> Signed-off-by: Michał Winiarski <michal.winiarski@xxxxxxxxx>
> ---
> include/drm/intel/pciids.h | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/include/drm/intel/pciids.h b/include/drm/intel/pciids.h
> index b258e79b437ac..d14ce43139a28 100644
> --- a/include/drm/intel/pciids.h
> +++ b/include/drm/intel/pciids.h
> @@ -43,6 +43,13 @@
> 	.class = PCI_BASE_CLASS_DISPLAY << 16, .class_mask = 0xff << 16, \
> 	.driver_data = (kernel_ulong_t)(_info), \
> }
> +
> +#define INTEL_VGA_VFIO_DEVICE(_id, _info) { \
> +	PCI_DEVICE(PCI_VENDOR_ID_INTEL, (_id)), \
> +	.class = PCI_BASE_CLASS_DISPLAY << 16, .class_mask = 0xff << 16, \
> +	.driver_data = (kernel_ulong_t)(_info), \
> +	.override_only = PCI_ID_F_VFIO_DRIVER_OVERRIDE, \

why do we need this and can't use PCI_DRIVER_OVERRIDE_DEVICE_VFIO()
directly? Note that there are GPUs that wouldn't match the display class
above.

	edb660ad79ff ("drm/intel/pciids: Add match on vendor/id only")
	5e0de2dfbc1b ("drm/xe/cri: Add CRI platform definition")

Lucas De Marchi

> +}
> #endif
>
> #define INTEL_I810_IDS(MACRO__, ...) \
> --
> 2.50.1