Re: [PATCH v8 04/15] iommupt: Add the AMD IOMMU v1 page table format

[Randy Dunlap]

On 11/4/25 10:30 AM, Jason Gunthorpe wrote:
> diff --git a/drivers/iommu/generic_pt/Kconfig 
> b/drivers/iommu/generic_pt/Kconfig
> index a81dfdd72ca016..cbdad222923b26 100644
> --- a/drivers/iommu/generic_pt/Kconfig
> +++ b/drivers/iommu/generic_pt/Kconfig
> @@ -30,4 +30,16 @@ config IOMMU_PT
>         related to struct iommu_domain using GENERIC_PT. It provides a single
>         implementation of the page table operations that can be shared by
>         multiple drivers.
> +
> +if IOMMU_PT
> +config IOMMU_PT_AMDV1
> +     tristate "IOMMU page table for 64-bit AMD IOMMU v1"
> +     depends on !GENERIC_ATOMIC64 # for cmpxchg64
> +     help
> +       iommu_domain implementation for the AMD v1 page table. AMDv1 is the
> +       "host" page table. It supports granular page sizes of almost every
> +       power of 2 and decodes an full 64-bit IOVA space.

                                 a full
or

                                 the full

> +
> +       Selected automatically by an IOMMU driver that uses this format.
> +endif


-- 
~Randy