Extend the existing test_cmd/err_viommu_alloc helpers to accept optional user data. And add a TEST_F for a loopback test.
Reviewed-by: Pranjal Shrivastava praan@google.com Signed-off-by: Nicolin Chen nicolinc@nvidia.com --- tools/testing/selftests/iommu/iommufd_utils.h | 21 ++++++++----- tools/testing/selftests/iommu/iommufd.c | 30 ++++++++++++++----- .../selftests/iommu/iommufd_fail_nth.c | 5 ++-- 3 files changed, 39 insertions(+), 17 deletions(-)
diff --git a/tools/testing/selftests/iommu/iommufd_utils.h b/tools/testing/selftests/iommu/iommufd_utils.h index 72f6636e5d90..a5d4cbd089ba 100644 --- a/tools/testing/selftests/iommu/iommufd_utils.h +++ b/tools/testing/selftests/iommu/iommufd_utils.h @@ -897,7 +897,8 @@ static int _test_cmd_trigger_iopf(int fd, __u32 device_id, __u32 pasid, pasid, fault_fd))
static int _test_cmd_viommu_alloc(int fd, __u32 device_id, __u32 hwpt_id, - __u32 type, __u32 flags, __u32 *viommu_id) + __u32 flags, __u32 type, void *data, + __u32 data_len, __u32 *viommu_id) { struct iommu_viommu_alloc cmd = { .size = sizeof(cmd), @@ -905,6 +906,8 @@ static int _test_cmd_viommu_alloc(int fd, __u32 device_id, __u32 hwpt_id, .type = type, .dev_id = device_id, .hwpt_id = hwpt_id, + .data_uptr = (uint64_t)data, + .data_len = data_len, }; int ret;
@@ -916,13 +919,15 @@ static int _test_cmd_viommu_alloc(int fd, __u32 device_id, __u32 hwpt_id, return 0; }
-#define test_cmd_viommu_alloc(device_id, hwpt_id, type, viommu_id) \ - ASSERT_EQ(0, _test_cmd_viommu_alloc(self->fd, device_id, hwpt_id, \ - type, 0, viommu_id)) -#define test_err_viommu_alloc(_errno, device_id, hwpt_id, type, viommu_id) \ - EXPECT_ERRNO(_errno, \ - _test_cmd_viommu_alloc(self->fd, device_id, hwpt_id, \ - type, 0, viommu_id)) +#define test_cmd_viommu_alloc(device_id, hwpt_id, type, data, data_len, \ + viommu_id) \ + ASSERT_EQ(0, _test_cmd_viommu_alloc(self->fd, device_id, hwpt_id, 0, \ + type, data, data_len, viommu_id)) +#define test_err_viommu_alloc(_errno, device_id, hwpt_id, type, data, \ + data_len, viommu_id) \ + EXPECT_ERRNO(_errno, \ + _test_cmd_viommu_alloc(self->fd, device_id, hwpt_id, 0, \ + type, data, data_len, viommu_id))
static int _test_cmd_vdevice_alloc(int fd, __u32 viommu_id, __u32 idev_id, __u64 virt_id, __u32 *vdev_id) diff --git a/tools/testing/selftests/iommu/iommufd.c b/tools/testing/selftests/iommu/iommufd.c index 1a8e85afe9aa..666a91d53195 100644 --- a/tools/testing/selftests/iommu/iommufd.c +++ b/tools/testing/selftests/iommu/iommufd.c @@ -2688,7 +2688,7 @@ FIXTURE_SETUP(iommufd_viommu)
/* Allocate a vIOMMU taking refcount of the parent hwpt */ test_cmd_viommu_alloc(self->device_id, self->hwpt_id, - IOMMU_VIOMMU_TYPE_SELFTEST, + IOMMU_VIOMMU_TYPE_SELFTEST, NULL, 0, &self->viommu_id);
/* Allocate a regular nested hwpt */ @@ -2727,24 +2727,27 @@ TEST_F(iommufd_viommu, viommu_negative_tests) if (self->device_id) { /* Negative test -- invalid hwpt (hwpt_id=0) */ test_err_viommu_alloc(ENOENT, device_id, 0, - IOMMU_VIOMMU_TYPE_SELFTEST, NULL); + IOMMU_VIOMMU_TYPE_SELFTEST, NULL, 0, + NULL);
/* Negative test -- not a nesting parent hwpt */ test_cmd_hwpt_alloc(device_id, ioas_id, 0, &hwpt_id); test_err_viommu_alloc(EINVAL, device_id, hwpt_id, - IOMMU_VIOMMU_TYPE_SELFTEST, NULL); + IOMMU_VIOMMU_TYPE_SELFTEST, NULL, 0, + NULL); test_ioctl_destroy(hwpt_id);
/* Negative test -- unsupported viommu type */ test_err_viommu_alloc(EOPNOTSUPP, device_id, self->hwpt_id, - 0xdead, NULL); + 0xdead, NULL, 0, NULL); EXPECT_ERRNO(EBUSY, _test_ioctl_destroy(self->fd, self->hwpt_id)); EXPECT_ERRNO(EBUSY, _test_ioctl_destroy(self->fd, self->viommu_id)); } else { test_err_viommu_alloc(ENOENT, self->device_id, self->hwpt_id, - IOMMU_VIOMMU_TYPE_SELFTEST, NULL); + IOMMU_VIOMMU_TYPE_SELFTEST, NULL, 0, + NULL); } }
@@ -2791,6 +2794,20 @@ TEST_F(iommufd_viommu, viommu_alloc_nested_iopf) } }
+TEST_F(iommufd_viommu, viommu_alloc_with_data) +{ + struct iommu_viommu_selftest data = { + .in_data = 0xbeef, + }; + + if (self->device_id) { + test_cmd_viommu_alloc(self->device_id, self->hwpt_id, + IOMMU_VIOMMU_TYPE_SELFTEST, &data, + sizeof(data), &self->viommu_id); + assert(data.out_data == data.in_data); + } +} + TEST_F(iommufd_viommu, vdevice_alloc) { uint32_t viommu_id = self->viommu_id; @@ -3105,8 +3122,7 @@ TEST_F(iommufd_device_pasid, pasid_attach)
/* Allocate a regular nested hwpt based on viommu */ test_cmd_viommu_alloc(self->device_id, parent_hwpt_id, - IOMMU_VIOMMU_TYPE_SELFTEST, - &viommu_id); + IOMMU_VIOMMU_TYPE_SELFTEST, NULL, 0, &viommu_id); test_cmd_hwpt_alloc_nested(self->device_id, viommu_id, IOMMU_HWPT_ALLOC_PASID, &nested_hwpt_id[2], diff --git a/tools/testing/selftests/iommu/iommufd_fail_nth.c b/tools/testing/selftests/iommu/iommufd_fail_nth.c index e11ec4b121fc..f7ccf1822108 100644 --- a/tools/testing/selftests/iommu/iommufd_fail_nth.c +++ b/tools/testing/selftests/iommu/iommufd_fail_nth.c @@ -688,8 +688,9 @@ TEST_FAIL_NTH(basic_fail_nth, device) IOMMU_HWPT_DATA_NONE, 0, 0)) return -1;
- if (_test_cmd_viommu_alloc(self->fd, idev_id, hwpt_id, - IOMMU_VIOMMU_TYPE_SELFTEST, 0, &viommu_id)) + if (_test_cmd_viommu_alloc(self->fd, idev_id, hwpt_id, 0, + IOMMU_VIOMMU_TYPE_SELFTEST, NULL, 0, + &viommu_id)) return -1;
if (_test_cmd_vdevice_alloc(self->fd, viommu_id, idev_id, 0, &vdev_id))