kernel/tools/testing/selftests/vfio/lib/iova_allocator.c, branch linux-6.19.y

vfio: selftests: Drop includes

2025-12-23T21:17:13Z

Drop the includes now that (tools/include/linux/types.h) has a definition for __aligned_le64, which is needed by . Including is harmless but causes benign typedef redefinitions. This is not a problem for VFIO selftests but becomes an issue when the VFIO selftests library is built into KVM selftests, since they are built with -std=gnu99 which does not allow typedef redifitions. No functional change intended. Signed-off-by: David Matlack Link: https://lore.kernel.org/r/20251219233818.1965306-3-dmatlack@google.com Signed-off-by: Alex Williamson

vfio: selftests: Rename vfio_util.h to libvfio.h

2025-11-28T17:58:07Z

Rename vfio_util.h to libvfio.h to match the name of libvfio.mk. No functional change intended. Reviewed-by: Alex Mastro Tested-by: Alex Mastro Reviewed-by: Raghavendra Rao Ananta Signed-off-by: David Matlack Link: https://lore.kernel.org/r/20251126231733.3302983-15-dmatlack@google.com Signed-off-by: Alex Williamson

vfio: selftests: Stop passing device for IOMMU operations

2025-11-28T17:58:06Z

Drop the struct vfio_pci_device wrappers for IOMMU map/unmap functions and require tests to directly call iommu_map(), iommu_unmap(), etc. This results in more concise code, and also makes it clear the map operations are happening on a struct iommu, not necessarily on a specific device, especially when multi-device tests are introduced. Do the same for iova_allocator_init() as that function only needs the struct iommu, not struct vfio_pci_device. Reviewed-by: Alex Mastro Tested-by: Alex Mastro Reviewed-by: Raghavendra Rao Ananta Signed-off-by: David Matlack Link: https://lore.kernel.org/r/20251126231733.3302983-14-dmatlack@google.com Signed-off-by: Alex Williamson

vfio: selftests: Move IOVA allocator into iova_allocator.c

2025-11-28T17:58:06Z

Move the IOVA allocator into its own file, to provide better separation between the allocator and the struct vfio_pci_device helper code. The allocator could go into iommu.c, but it is standalone enough that a separate file seems cleaner. This also continues the trend of having a .c for every major object in VFIO selftests (vfio_pci_device.c, vfio_pci_driver.c, iommu.c, and now iova_allocator.c). No functional change intended. Reviewed-by: Alex Mastro Tested-by: Alex Mastro Reviewed-by: Raghavendra Rao Ananta Signed-off-by: David Matlack Link: https://lore.kernel.org/r/20251126231733.3302983-13-dmatlack@google.com Signed-off-by: Alex Williamson