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iommufd/selftest: Add tests for <= u8 bitmap sizes

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Add more tests for bitmaps smaller than or equal to an u8, though skip the
tests if the IOVA buffer size is smaller than the mock page size.

Link: https://lore.kernel.org/r/20240627110105.62325-4-joao.m.martins@oracle.com
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Tested-by: Matt Ochs <mochs@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Joao Martins
2024-06-27 12:00:57 +01:00
committed by Jason Gunthorpe
parent 9560393b83
commit 33335584eb
1 changed files with 18 additions and 0 deletions
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18
tools/testing/selftests/iommu/iommufd.c
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@@ -1727,6 +1727,12 @@ FIXTURE_SETUP(iommufd_dirty_tracking)
void *vrc;
int rc;
if (variant->buffer_size < MOCK_PAGE_SIZE) {
SKIP(return,
"Skipping buffer_size=%lu, less than MOCK_PAGE_SIZE=%lu",
variant->buffer_size, MOCK_PAGE_SIZE);
}
self->fd = open("/dev/iommu", O_RDWR);
ASSERT_NE(-1, self->fd);
@@ -1779,6 +1785,18 @@ FIXTURE_TEARDOWN(iommufd_dirty_tracking)
teardown_iommufd(self->fd, _metadata);
}
FIXTURE_VARIANT_ADD(iommufd_dirty_tracking, domain_dirty8k)
{
/* half of an u8 index bitmap */
.buffer_size = 8UL * 1024UL,
};
FIXTURE_VARIANT_ADD(iommufd_dirty_tracking, domain_dirty16k)
{
/* one u8 index bitmap */
.buffer_size = 16UL * 1024UL,
};
FIXTURE_VARIANT_ADD(iommufd_dirty_tracking, domain_dirty128k)
{
/* one u32 index bitmap */