From: Zhenzhong Duan Date: Thu, 2 Apr 2026 06:57:27 +0000 (+0800) Subject: iommufd/selftest: Test dirty tracking on PASID X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c9587216d991120c3cf546bcd708422b26334888;p=thirdparty%2Flinux.git iommufd/selftest: Test dirty tracking on PASID Add test case for dirty tracking on a domain attached to PASID, also confirm attachment to PASID fail if device doesn't support dirty tracking. Suggested-by: Lu Baolu Signed-off-by: Zhenzhong Duan Reviewed-by: Yi Liu Reviewed-by: Kevin Tian Link: https://lore.kernel.org/r/20260330101108.12594-5-zhenzhong.duan@intel.com Signed-off-by: Lu Baolu Signed-off-by: Joerg Roedel --- diff --git a/tools/testing/selftests/iommu/iommufd.c b/tools/testing/selftests/iommu/iommufd.c index dadad277f4eb2..d1fe5dbc2813e 100644 --- a/tools/testing/selftests/iommu/iommufd.c +++ b/tools/testing/selftests/iommu/iommufd.c @@ -2275,6 +2275,33 @@ TEST_F(iommufd_dirty_tracking, set_dirty_tracking) test_ioctl_destroy(hwpt_id); } +TEST_F(iommufd_dirty_tracking, pasid_set_dirty_tracking) +{ + uint32_t stddev_id, ioas_id, hwpt_id, pasid = 100; + uint32_t dev_flags = MOCK_FLAGS_DEVICE_PASID; + + /* Regular case */ + test_cmd_hwpt_alloc(self->idev_id, self->ioas_id, + IOMMU_HWPT_ALLOC_PASID | IOMMU_HWPT_ALLOC_DIRTY_TRACKING, + &hwpt_id); + test_cmd_mock_domain_flags(hwpt_id, dev_flags, &stddev_id, NULL, NULL); + ASSERT_EQ(0, _test_cmd_pasid_attach(self->fd, stddev_id, pasid, hwpt_id)); + test_cmd_set_dirty_tracking(hwpt_id, true); + test_cmd_set_dirty_tracking(hwpt_id, false); + ASSERT_EQ(0, _test_cmd_pasid_detach(self->fd, stddev_id, pasid)); + + test_ioctl_destroy(stddev_id); + + /* IOMMU device does not support dirty tracking */ + dev_flags |= MOCK_FLAGS_DEVICE_NO_DIRTY; + test_ioctl_ioas_alloc(&ioas_id); + test_cmd_mock_domain_flags(ioas_id, dev_flags, &stddev_id, NULL, NULL); + EXPECT_ERRNO(EINVAL, _test_cmd_pasid_attach(self->fd, stddev_id, pasid, hwpt_id)); + + test_ioctl_destroy(stddev_id); + test_ioctl_destroy(hwpt_id); +} + TEST_F(iommufd_dirty_tracking, device_dirty_capability) { uint32_t caps = 0;