Re: [PATCH] vfio/qat: extend Kconfig dependencies for 420xx and 6xxx devices

[Alex Williamson <alex@shazbot.org>]

On Fri, 13 Feb 2026 09:14:03 +0000
Suman Kumar Chakraborty <suman.kumar.chakraborty@intel.com> wrote:

> From: Vijay Sundar Selvamani <vijay.sundar.selvamani@intel.com>
> 
> Currently, the QAT VFIO PCI driver can only be configured when the 4xxx
> QAT driver (CRYPTO_DEV_QAT_4XXX) is enabled. This is too restrictive as
> the VFIO driver also supports VFs from the 420xx and 6xxx device
> families, which share a compatible migration interface.
> 
> Extends the Kconfig dependencies to allow configuration when any of the
> supported QAT device families (4xxx, 420xx, or 6xxx) are enabled.
> 
> Signed-off-by: Vijay Sundar Selvamani <vijay.sundar.selvamani@intel.com>
> Signed-off-by: Suman Kumar Chakraborty <suman.kumar.chakraborty@intel.com>
> Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
> ---
>  drivers/vfio/pci/qat/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/vfio/pci/qat/Kconfig b/drivers/vfio/pci/qat/Kconfig
> index bf52cfa4b595..83f037d7e9a4 100644
> --- a/drivers/vfio/pci/qat/Kconfig
> +++ b/drivers/vfio/pci/qat/Kconfig
> @@ -2,7 +2,7 @@
>  config QAT_VFIO_PCI
>  	tristate "VFIO support for QAT VF PCI devices"
>  	select VFIO_PCI_CORE
> -	depends on CRYPTO_DEV_QAT_4XXX
> +	depends on CRYPTO_DEV_QAT_4XXX || CRYPTO_DEV_QAT_420XX || CRYPTO_DEV_QAT_6XXX
>  	help
>  	  This provides migration support for Intel(R) QAT Virtual Function
>  	  using the VFIO framework.
> 
> base-commit: b10c62483b324e60e45fb27d7fdc09c9198993d7

Applied to vfio next branch for v7.1, still waiting on a patch that
actually adds support for for 420xx to the variant driver.  Thanks,

Alex