From 03b7c2d763c907f508edf8c317c0e920ce072a33 Mon Sep 17 00:00:00 2001 From: Alex Mastro Date: Wed, 14 Jan 2026 10:57:16 -0800 Subject: [PATCH] vfio: selftests: Centralize IOMMU mode name definitions Replace scattered string literals with MODE_* macros in iommu.h. This provides a single source of truth for IOMMU mode name strings. Signed-off-by: Alex Mastro Reviewed-by: David Matlack Tested-by: David Matlack Link: https://lore.kernel.org/r/20260114-map-mmio-test-v3-1-44e036d95e64@fb.com Signed-off-by: Alex Williamson --- .../selftests/vfio/lib/include/libvfio/iommu.h | 6 ++++++ tools/testing/selftests/vfio/lib/iommu.c | 12 ++++++------ tools/testing/selftests/vfio/vfio_dma_mapping_test.c | 2 +- 3 files changed, 13 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/vfio/lib/include/libvfio/iommu.h b/tools/testing/selftests/vfio/lib/include/libvfio/iommu.h index 5c9b9dc6d9938..e9a3386a47193 100644 --- a/tools/testing/selftests/vfio/lib/include/libvfio/iommu.h +++ b/tools/testing/selftests/vfio/lib/include/libvfio/iommu.h @@ -61,6 +61,12 @@ iova_t iommu_hva2iova(struct iommu *iommu, void *vaddr); struct iommu_iova_range *iommu_iova_ranges(struct iommu *iommu, u32 *nranges); +#define MODE_VFIO_TYPE1_IOMMU "vfio_type1_iommu" +#define MODE_VFIO_TYPE1V2_IOMMU "vfio_type1v2_iommu" +#define MODE_IOMMUFD_COMPAT_TYPE1 "iommufd_compat_type1" +#define MODE_IOMMUFD_COMPAT_TYPE1V2 "iommufd_compat_type1v2" +#define MODE_IOMMUFD "iommufd" + /* * Generator for VFIO selftests fixture variants that replicate across all * possible IOMMU modes. Tests must define FIXTURE_VARIANT_ADD_IOMMU_MODE() diff --git a/tools/testing/selftests/vfio/lib/iommu.c b/tools/testing/selftests/vfio/lib/iommu.c index 58b7fb7430d4f..035dac069d601 100644 --- a/tools/testing/selftests/vfio/lib/iommu.c +++ b/tools/testing/selftests/vfio/lib/iommu.c @@ -20,32 +20,32 @@ #include "../../../kselftest.h" #include -const char *default_iommu_mode = "iommufd"; +const char *default_iommu_mode = MODE_IOMMUFD; /* Reminder: Keep in sync with FIXTURE_VARIANT_ADD_ALL_IOMMU_MODES(). */ static const struct iommu_mode iommu_modes[] = { { - .name = "vfio_type1_iommu", + .name = MODE_VFIO_TYPE1_IOMMU, .container_path = "/dev/vfio/vfio", .iommu_type = VFIO_TYPE1_IOMMU, }, { - .name = "vfio_type1v2_iommu", + .name = MODE_VFIO_TYPE1V2_IOMMU, .container_path = "/dev/vfio/vfio", .iommu_type = VFIO_TYPE1v2_IOMMU, }, { - .name = "iommufd_compat_type1", + .name = MODE_IOMMUFD_COMPAT_TYPE1, .container_path = "/dev/iommu", .iommu_type = VFIO_TYPE1_IOMMU, }, { - .name = "iommufd_compat_type1v2", + .name = MODE_IOMMUFD_COMPAT_TYPE1V2, .container_path = "/dev/iommu", .iommu_type = VFIO_TYPE1v2_IOMMU, }, { - .name = "iommufd", + .name = MODE_IOMMUFD, }, }; diff --git a/tools/testing/selftests/vfio/vfio_dma_mapping_test.c b/tools/testing/selftests/vfio/vfio_dma_mapping_test.c index 3bf984b337ac9..3d2f44f9c62fb 100644 --- a/tools/testing/selftests/vfio/vfio_dma_mapping_test.c +++ b/tools/testing/selftests/vfio/vfio_dma_mapping_test.c @@ -165,7 +165,7 @@ TEST_F(vfio_dma_mapping_test, dma_map_unmap) * IOMMUFD compatibility-mode does not support huge mappings when * using VFIO_TYPE1_IOMMU. */ - if (!strcmp(variant->iommu_mode, "iommufd_compat_type1")) + if (!strcmp(variant->iommu_mode, MODE_IOMMUFD_COMPAT_TYPE1)) mapping_size = SZ_4K; ASSERT_EQ(0, rc); -- 2.47.3