On 8/26/25 10:18 AM, Jason Gunthorpe wrote: > diff --git a/drivers/iommu/generic_pt/Kconfig b/drivers/iommu/generic_pt/Kconfig > index 57dc81060f9f0d..8665a1d4299b7a 100644 > --- a/drivers/iommu/generic_pt/Kconfig > +++ b/drivers/iommu/generic_pt/Kconfig > @@ -41,10 +41,21 @@ config IOMMU_PT_AMDV1 > > Selected automatically by an IOMMU driver that uses this format. > > +config IOMMU_PT_X86_64 > + tristate "IOMMU page table for x86 64 bit, 4/5 levels" 64-bit, and use tab to indent, not spaces. > + depends on !GENERIC_ATOMIC64 # for cmpxchg64 > + help > + iommu_domain implementation for the x86 64 bit 4/5 level page table. 64-bit > + It supports 4K/2M/1G page sizes and can decode a sign extended sign-extended > + portion of the 64 bit IOVA space. 64-bit > + > + Selected automatically by an IOMMU driver that uses this format. > + -- ~Randy
