From: Randy Dunlap <rdunlap@infradead.org>
To: Jason Gunthorpe <jgg@nvidia.com>,
Jonathan Corbet <corbet@lwn.net>,
iommu@lists.linux.dev, Joerg Roedel <joro@8bytes.org>,
Justin Stitt <justinstitt@google.com>,
Kevin Tian <kevin.tian@intel.com>,
linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.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>,
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>,
Michael Roth <michael.roth@amd.com>,
Pasha Tatashin <pasha.tatashin@soleen.com>,
patches@lists.linux.dev
Subject: Re: [PATCH v4 12/15] iommupt: Add the x86 64 bit page table format
Date: Tue, 26 Aug 2025 16:38:41 -0700 [thread overview]
Message-ID: <adf12245-08c2-4a14-bac9-2cf7a1bf8107@infradead.org> (raw)
In-Reply-To: <12-v4-0d6a6726a372+18959-iommu_pt_jgg@nvidia.com>
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
next prev parent reply other threads:[~2025-08-26 23:38 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-26 17:18 [PATCH v4 00/15] Consolidate iommu page table implementations (AMD) Jason Gunthorpe
2025-08-26 17:18 ` [PATCH v4 01/15] genpt: Generic Page Table base API Jason Gunthorpe
2025-08-27 7:11 ` Randy Dunlap
2025-08-29 18:51 ` Jason Gunthorpe
2025-08-29 22:50 ` Randy Dunlap
2025-08-26 17:18 ` [PATCH v4 02/15] genpt: Add Documentation/ files Jason Gunthorpe
2025-08-27 1:07 ` Randy Dunlap
2025-08-29 18:57 ` Jason Gunthorpe
2025-08-26 17:18 ` [PATCH v4 03/15] iommupt: Add the basic structure of the iommu implementation Jason Gunthorpe
2025-08-27 5:03 ` Randy Dunlap
2025-08-29 19:05 ` Jason Gunthorpe
2025-08-29 19:25 ` Randy Dunlap
2025-08-26 17:18 ` [PATCH v4 04/15] iommupt: Add the AMD IOMMU v1 page table format Jason Gunthorpe
2025-08-27 0:03 ` Randy Dunlap
2025-08-29 19:06 ` Jason Gunthorpe
2025-08-26 17:18 ` [PATCH v4 05/15] iommupt: Add iova_to_phys op Jason Gunthorpe
2025-08-26 17:18 ` [PATCH v4 06/15] iommupt: Add unmap_pages op Jason Gunthorpe
2025-08-26 20:44 ` Randy Dunlap
2025-08-29 17:55 ` Jason Gunthorpe
2025-08-26 17:18 ` [PATCH v4 07/15] iommupt: Add map_pages op Jason Gunthorpe
2025-08-26 23:20 ` Randy Dunlap
2025-08-29 19:23 ` Jason Gunthorpe
2025-08-29 19:27 ` Randy Dunlap
2025-08-26 17:18 ` [PATCH v4 08/15] iommupt: Add read_and_clear_dirty op Jason Gunthorpe
2025-08-26 20:47 ` Randy Dunlap
2025-08-29 17:55 ` Jason Gunthorpe
2025-08-26 17:18 ` [PATCH v4 09/15] iommupt: Add a kunit test for Generic Page Table Jason Gunthorpe
2025-08-26 17:18 ` [PATCH v4 10/15] iommupt: Add a mock pagetable format for iommufd selftest to use Jason Gunthorpe
2025-08-26 17:18 ` [PATCH v4 11/15] iommufd: Change the selftest to use iommupt instead of xarray Jason Gunthorpe
2025-08-26 23:33 ` Randy Dunlap
2025-08-29 17:56 ` Jason Gunthorpe
2025-08-26 17:18 ` [PATCH v4 12/15] iommupt: Add the x86 64 bit page table format Jason Gunthorpe
2025-08-26 23:38 ` Randy Dunlap [this message]
2025-08-29 17:58 ` Jason Gunthorpe
2025-08-26 17:18 ` [PATCH v4 13/15] iommu/amd: Use the generic iommu page table Jason Gunthorpe
2025-08-26 17:18 ` [PATCH v4 14/15] iommu/amd: Remove AMD io_pgtable support Jason Gunthorpe
2025-08-26 17:18 ` [PATCH v4 15/15] iommupt: Add a kunit test for the IOMMU implementation Jason Gunthorpe
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