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authorAlex Mastro <amastro@fb.com>2026-01-14 21:57:16 +0300
committerAlex Williamson <alex@shazbot.org>2026-01-19 20:06:29 +0300
commit03b7c2d763c907f508edf8c317c0e920ce072a33 (patch)
tree9dcc4cbebac502f47c433f33571e5dfca29e3f56
parentffc987b3bca22ff62f140a8d4960e1b8685972ed (diff)
downloadlinux-03b7c2d763c907f508edf8c317c0e920ce072a33.tar.xz
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 <amastro@fb.com> Reviewed-by: David Matlack <dmatlack@google.com> Tested-by: David Matlack <dmatlack@google.com> Link: https://lore.kernel.org/r/20260114-map-mmio-test-v3-1-44e036d95e64@fb.com Signed-off-by: Alex Williamson <alex@shazbot.org>
-rw-r--r--tools/testing/selftests/vfio/lib/include/libvfio/iommu.h6
-rw-r--r--tools/testing/selftests/vfio/lib/iommu.c12
-rw-r--r--tools/testing/selftests/vfio/vfio_dma_mapping_test.c2
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 5c9b9dc6d993..e9a3386a4719 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 58b7fb7430d4..035dac069d60 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 <libvfio.h>
-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 3bf984b337ac..3d2f44f9c62f 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);