From: Randy Dunlap <rdunlap@infradead.org>
To: Jason Gunthorpe <jgg@nvidia.com>, Alexandre Ghiti <alex@ghiti.fr>,
Anup Patel <anup@brainfault.org>,
Albert Ou <aou@eecs.berkeley.edu>,
Jonathan Corbet <corbet@lwn.net>,
iommu@lists.linux.dev, Joerg Roedel <joro@8bytes.org>,
Justin Stitt <justinstitt@google.com>,
linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-riscv@lists.infradead.org, llvm@lists.linux.dev,
Bill Wendling <morbo@google.com>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <nick.desaulniers+lkml@gmail.com>,
Miguel Ojeda <ojeda@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <pjw@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Shuah Khan <shuah@kernel.org>,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
Will Deacon <will@kernel.org>
Cc: Alexey Kardashevskiy <aik@amd.com>,
Alejandro Jimenez <alejandro.j.jimenez@oracle.com>,
James Gowans <jgowans@amazon.com>,
Kevin Tian <kevin.tian@intel.com>,
Michael Roth <michael.roth@amd.com>,
Pasha Tatashin <pasha.tatashin@soleen.com>,
patches@lists.linux.dev, Samiullah Khawaja <skhawaja@google.com>,
Vasant Hegde <vasant.hegde@amd.com>
Subject: Re: [PATCH v8 04/15] iommupt: Add the AMD IOMMU v1 page table format
Date: Tue, 4 Nov 2025 10:51:56 -0800 [thread overview]
Message-ID: <7112b077-d19d-4b85-b2e0-8700dd2951e9@infradead.org> (raw)
In-Reply-To: <4-v8-d50aeee4481d+55efb-iommu_pt_jgg@nvidia.com>
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
next prev parent reply other threads:[~2025-11-04 18:52 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-04 18:29 [PATCH v8 00/15] Consolidate iommu page table implementations (AMD) Jason Gunthorpe
2025-11-04 18:29 ` [PATCH v8 01/15] genpt: Generic Page Table base API Jason Gunthorpe
2025-11-04 18:30 ` [PATCH v8 02/15] genpt: Add Documentation/ files Jason Gunthorpe
2025-11-04 23:49 ` Randy Dunlap
2025-11-05 18:51 ` Jason Gunthorpe
2025-11-04 18:30 ` [PATCH v8 03/15] iommupt: Add the basic structure of the iommu implementation Jason Gunthorpe
2025-11-04 18:30 ` [PATCH v8 04/15] iommupt: Add the AMD IOMMU v1 page table format Jason Gunthorpe
2025-11-04 18:51 ` Randy Dunlap [this message]
2025-11-04 18:30 ` [PATCH v8 05/15] iommupt: Add iova_to_phys op Jason Gunthorpe
2025-11-04 19:02 ` Randy Dunlap
2025-11-04 19:19 ` Jason Gunthorpe
2025-11-04 18:30 ` [PATCH v8 06/15] iommupt: Add unmap_pages op Jason Gunthorpe
2025-11-04 18:30 ` [PATCH v8 07/15] iommupt: Add map_pages op Jason Gunthorpe
2025-11-04 18:30 ` [PATCH v8 08/15] iommupt: Add read_and_clear_dirty op Jason Gunthorpe
2025-11-04 19:13 ` Randy Dunlap
2025-11-04 19:17 ` Jason Gunthorpe
2025-11-04 19:19 ` Randy Dunlap
2025-11-04 18:30 ` [PATCH v8 09/15] iommupt: Add a kunit test for Generic Page Table Jason Gunthorpe
2025-11-04 18:30 ` [PATCH v8 10/15] iommupt: Add a mock pagetable format for iommufd selftest to use Jason Gunthorpe
2025-11-04 18:30 ` [PATCH v8 11/15] iommufd: Change the selftest to use iommupt instead of xarray Jason Gunthorpe
2025-11-04 18:30 ` [PATCH v8 12/15] iommupt: Add the x86 64 bit page table format Jason Gunthorpe
2025-11-04 18:30 ` [PATCH v8 13/15] iommu/amd: Use the generic iommu page table Jason Gunthorpe
2025-11-05 16:01 ` Ankit Soni
2025-11-05 16:57 ` Jason Gunthorpe
2025-11-04 18:30 ` [PATCH v8 14/15] iommu/amd: Remove AMD io_pgtable support Jason Gunthorpe
2025-11-04 18:30 ` [PATCH v8 15/15] iommupt: Add a kunit test for the IOMMU implementation Jason Gunthorpe
2025-11-05 8:45 ` [PATCH v8 00/15] Consolidate iommu page table implementations (AMD) Joerg Roedel
2025-11-05 12:43 ` Jason Gunthorpe
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