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From: Nathan Chancellor <nathan@kernel.org>
To: Jason Gunthorpe <jgg@nvidia.com>
Cc: 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>,
	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>, 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 v2 15/15] iommupt: Add a kunit test for the IOMMU implementation
Date: Mon, 5 May 2025 11:00:09 -0700	[thread overview]
Message-ID: <20250505180009.GA717568@ax162> (raw)
In-Reply-To: <20250505174747.GA4155135@nvidia.com>

On Mon, May 05, 2025 at 02:47:47PM -0300, Jason Gunthorpe wrote:
> On Mon, May 05, 2025 at 10:44:58AM -0700, Nathan Chancellor wrote:
> > On Mon, May 05, 2025 at 11:18:45AM -0300, Jason Gunthorpe wrote:
> > > This intends to have high coverage of the page table format functions and
> > > the IOMMU implementation itself, exercising the various corner cases.
> > > 
> > > The kunit can be run in the kunit framework, using commands like:
> > > 
> > > tools/testing/kunit/kunit.py run --build_dir build_kunit_arm64 --arch arm64 --make_options LLVM=1 --make_options LLVM_SUFFIX=-19 --kunitconfig ./drivers/iommu/generic_pt/.kunitconfig
> > 
> > Just a small comment about the command:
> > 
> >   --make_options LLVM=1 --make_options LLVM_SUFFIX=-19
> > 
> > can be simplified to just
> > 
> >   --make_options LLVM=-19
> > 
> > You should never need to specify either LLVM_SUFFIX or LLVM_PREFIX.
> 
> Oh wow, I had no idea. Can I encourage you to send a patch for 'make
> help' to explain how to use it?

I will see if I can come up with something concise for 'make help' but
we have it written up in Documentation/kbuild/llvm.rst:

https://docs.kernel.org/kbuild/llvm.html

Cheers,
Nathan

  reply	other threads:[~2025-05-05 18:00 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-05 14:18 [PATCH v2 00/15] Consolidate iommu page table implementations (AMD) Jason Gunthorpe
2025-05-05 14:18 ` [PATCH v2 01/15] genpt: Generic Page Table base API Jason Gunthorpe
2025-05-05 14:18 ` [PATCH v2 02/15] genpt: Add Documentation/ files Jason Gunthorpe
2025-05-07  2:37   ` Bagas Sanjaya
2025-05-13 18:53     ` Jason Gunthorpe
2025-05-15  6:21       ` Bagas Sanjaya
2025-05-05 14:18 ` [PATCH v2 03/15] iommupt: Add the basic structure of the iommu implementation Jason Gunthorpe
2025-05-14  9:23   ` Ankit Soni
2025-05-14 15:54     ` Jason Gunthorpe
2025-05-14 20:08       ` Alejandro Jimenez
2025-05-15 19:32         ` Jason Gunthorpe
2025-05-16  5:02         ` Ankit Soni
2025-05-16 20:39           ` Alejandro Jimenez
2025-05-05 14:18 ` [PATCH v2 04/15] iommupt: Add the AMD IOMMU v1 page table format Jason Gunthorpe
2025-05-05 18:48   ` ALOK TIWARI
2025-05-16  8:30   ` Yi Liu
2025-05-16 11:57     ` Jason Gunthorpe
2025-05-05 14:18 ` [PATCH v2 05/15] iommupt: Add iova_to_phys op Jason Gunthorpe
2025-05-05 14:18 ` [PATCH v2 06/15] iommupt: Add unmap_pages op Jason Gunthorpe
2025-05-05 14:18 ` [PATCH v2 07/15] iommupt: Add map_pages op Jason Gunthorpe
2025-05-13  5:15   ` Ankit Soni
2025-05-13 12:00     ` Jason Gunthorpe
2025-06-05 16:49   ` Jason Gunthorpe
2025-05-05 14:18 ` [PATCH v2 08/15] iommupt: Add read_and_clear_dirty op Jason Gunthorpe
2025-05-05 14:18 ` [PATCH v2 09/15] iommupt: Add a kunit test for Generic Page Table Jason Gunthorpe
2025-05-05 14:18 ` [PATCH v2 10/15] iommupt: Add a mock pagetable format for iommufd selftest to use Jason Gunthorpe
2025-05-05 14:18 ` [PATCH v2 11/15] iommufd: Change the selftest to use iommupt instead of xarray Jason Gunthorpe
2025-05-05 14:18 ` [PATCH v2 12/15] iommupt: Add the x86 64 bit page table format Jason Gunthorpe
2025-06-05 21:03   ` Jacob Pan
2025-06-06 11:43     ` Jason Gunthorpe
2025-05-05 14:18 ` [PATCH v2 13/15] iommu/amd: Use the generic iommu page table Jason Gunthorpe
2025-05-05 19:09   ` ALOK TIWARI
2025-05-05 14:18 ` [PATCH v2 14/15] iommu/amd: Remove AMD io_pgtable support Jason Gunthorpe
2025-05-05 14:18 ` [PATCH v2 15/15] iommupt: Add a kunit test for the IOMMU implementation Jason Gunthorpe
2025-05-05 17:44   ` Nathan Chancellor
2025-05-05 17:47     ` Jason Gunthorpe
2025-05-05 18:00       ` Nathan Chancellor [this message]
2025-05-13  1:08 ` [PATCH v2 00/15] Consolidate iommu page table implementations (AMD) Alejandro Jimenez

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