| Message ID | 20231009085123.463179-7-yi.l.liu@intel.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Add SIOV virtual device support | expand |
> From: Liu, Yi L <yi.l.liu@intel.com> > Sent: Monday, October 9, 2023 4:51 PM > > @@ -2071,6 +2083,43 @@ TEST_F(iommufd_device_pasid, pasid_attach) > > IOMMU_HWPT_ALLOC_DATA_SELFTEST, > &data, sizeof(data)); > > + if (variant->pasid) { > + uint32_t new_hwpt_id = 0; > + > + ASSERT_EQ(0, > + test_cmd_pasid_check_domain(self->fd, > + self->stdev_id, > + variant->pasid, > + self->hwpt_id, > + &result)); > + EXPECT_EQ(1, result); > + test_cmd_hwpt_alloc(self->device_id, self->ioas_id, > + 0, &new_hwpt_id); > + test_cmd_mock_domain_replace(self->stdev_id, > + new_hwpt_id); > + ASSERT_EQ(0, > + test_cmd_pasid_check_domain(self->fd, > + self->stdev_id, > + variant->pasid, > + new_hwpt_id, > + &result)); > + EXPECT_EQ(1, result); > + > + /* > + * Detach hwpt from variant->pasid, and check if the > + * variant->pasid has null domain > + */ > + test_cmd_pasid_detach(variant->pasid); > + ASSERT_EQ(0, > + test_cmd_pasid_check_domain(self->fd, > + self->stdev_id, > + variant->pasid, > + 0, &result)); > + EXPECT_EQ(1, result); > + > + test_ioctl_destroy(new_hwpt_id); > + } > + I wonder whether above better reuses the device attach/replace cases given default_pasid is hidden inside iommufd_device. this pasid_attach case is more for testing user pasids on a iommufd_device which hasn't yet been supported by SIOV device?
On 2023/10/10 16:30, Tian, Kevin wrote: >> From: Liu, Yi L <yi.l.liu@intel.com> >> Sent: Monday, October 9, 2023 4:51 PM >> >> @@ -2071,6 +2083,43 @@ TEST_F(iommufd_device_pasid, pasid_attach) >> >> IOMMU_HWPT_ALLOC_DATA_SELFTEST, >> &data, sizeof(data)); >> >> + if (variant->pasid) { >> + uint32_t new_hwpt_id = 0; >> + >> + ASSERT_EQ(0, >> + test_cmd_pasid_check_domain(self->fd, >> + self->stdev_id, >> + variant->pasid, >> + self->hwpt_id, >> + &result)); >> + EXPECT_EQ(1, result); >> + test_cmd_hwpt_alloc(self->device_id, self->ioas_id, >> + 0, &new_hwpt_id); >> + test_cmd_mock_domain_replace(self->stdev_id, >> + new_hwpt_id); >> + ASSERT_EQ(0, >> + test_cmd_pasid_check_domain(self->fd, >> + self->stdev_id, >> + variant->pasid, >> + new_hwpt_id, >> + &result)); >> + EXPECT_EQ(1, result); >> + >> + /* >> + * Detach hwpt from variant->pasid, and check if the >> + * variant->pasid has null domain >> + */ >> + test_cmd_pasid_detach(variant->pasid); >> + ASSERT_EQ(0, >> + test_cmd_pasid_check_domain(self->fd, >> + self->stdev_id, >> + variant->pasid, >> + 0, &result)); >> + EXPECT_EQ(1, result); >> + >> + test_ioctl_destroy(new_hwpt_id); >> + } >> + > > I wonder whether above better reuses the device attach/replace cases > given default_pasid is hidden inside iommufd_device. this pasid_attach > case is more for testing user pasids on a iommufd_device which hasn't > yet been supported by SIOV device? perhaps the way how the above code checks the attached domain misled you. Actually, this is still testing the siov default_pasid. In the variant setup, the default_pasid is passed to the testing driver when creating the stdev. That's why the replace test does not require a pasid. maybe I can let have a new selftest op to check attached domain for a given stdev instead of reusing test_cmd_pasid_check_domain().
diff --git a/tools/testing/selftests/iommu/iommufd.c b/tools/testing/selftests/iommu/iommufd.c index 9a1fbba89e96..945ab07a8b84 100644 --- a/tools/testing/selftests/iommu/iommufd.c +++ b/tools/testing/selftests/iommu/iommufd.c @@ -2031,14 +2031,20 @@ FIXTURE(iommufd_device_pasid) uint32_t device_id; }; +FIXTURE_VARIANT(iommufd_device_pasid) +{ + uint32_t pasid; +}; + FIXTURE_SETUP(iommufd_device_pasid) { self->fd = open("/dev/iommu", O_RDWR); ASSERT_NE(-1, self->fd); test_ioctl_ioas_alloc(&self->ioas_id); - test_cmd_mock_domain(self->ioas_id, 0, &self->stdev_id, - &self->hwpt_id, &self->device_id); + test_cmd_mock_domain(self->ioas_id, variant->pasid, + &self->stdev_id, &self->hwpt_id, + &self->device_id); } FIXTURE_TEARDOWN(iommufd_device_pasid) @@ -2046,6 +2052,12 @@ FIXTURE_TEARDOWN(iommufd_device_pasid) teardown_iommufd(self->fd, _metadata); } +/* For SIOV test */ +FIXTURE_VARIANT_ADD(iommufd_device_pasid, siov_pasid_600) +{ + .pasid = 600, //this is the default pasid for the SIOV virtual device +}; + TEST_F(iommufd_device_pasid, pasid_attach) { if (self->device_id) { @@ -2071,6 +2083,43 @@ TEST_F(iommufd_device_pasid, pasid_attach) IOMMU_HWPT_ALLOC_DATA_SELFTEST, &data, sizeof(data)); + if (variant->pasid) { + uint32_t new_hwpt_id = 0; + + ASSERT_EQ(0, + test_cmd_pasid_check_domain(self->fd, + self->stdev_id, + variant->pasid, + self->hwpt_id, + &result)); + EXPECT_EQ(1, result); + test_cmd_hwpt_alloc(self->device_id, self->ioas_id, + 0, &new_hwpt_id); + test_cmd_mock_domain_replace(self->stdev_id, + new_hwpt_id); + ASSERT_EQ(0, + test_cmd_pasid_check_domain(self->fd, + self->stdev_id, + variant->pasid, + new_hwpt_id, + &result)); + EXPECT_EQ(1, result); + + /* + * Detach hwpt from variant->pasid, and check if the + * variant->pasid has null domain + */ + test_cmd_pasid_detach(variant->pasid); + ASSERT_EQ(0, + test_cmd_pasid_check_domain(self->fd, + self->stdev_id, + variant->pasid, + 0, &result)); + EXPECT_EQ(1, result); + + test_ioctl_destroy(new_hwpt_id); + } + /* * Attach ioas to pasid 100, should succeed, domain should * be valid. diff --git a/tools/testing/selftests/iommu/iommufd_fail_nth.c b/tools/testing/selftests/iommu/iommufd_fail_nth.c index 691903c63de0..a5fb45d99869 100644 --- a/tools/testing/selftests/iommu/iommufd_fail_nth.c +++ b/tools/testing/selftests/iommu/iommufd_fail_nth.c @@ -644,6 +644,32 @@ TEST_FAIL_NTH(basic_fail_nth, device) self->pasid = 0; + if (_test_ioctl_destroy(self->fd, self->stdev_id)) + return -1; + + self->pasid = 300; + self->stdev_id = 0; + + /* Test for SIOV virtual devices attach */ + if (_test_cmd_mock_domain(self->fd, ioas_id, self->pasid, + &self->stdev_id, NULL, &idev_id)) + return -1; + + /* Test for SIOV virtual device replace */ + if (_test_cmd_mock_domain_replace(self->fd, self->stdev_id, + hwpt_id, NULL)) + return -1; + + if (_test_cmd_pasid_detach(self->fd, self->stdev_id, self->pasid)) + return -1; + + self->pasid = 0; + + if (_test_ioctl_destroy(self->fd, self->stdev_id)) + return -1; + + self->stdev_id = 0; + return 0; }
This adds test coverage for SIOV virtual device by passsing a non-zero pasid to IOMMU_TEST_OP_MOCK_DOMAIN op, and check if the SIOV virtual device (a.k.a pasid of this device) is attached to the mock domain, then tries to replace with a new hwpt and other types of hwpts, and check if the attached domain of this virtual device is correct. Signed-off-by: Yi Liu <yi.l.liu@intel.com> --- tools/testing/selftests/iommu/iommufd.c | 53 ++++++++++++++++++- .../selftests/iommu/iommufd_fail_nth.c | 26 +++++++++ 2 files changed, 77 insertions(+), 2 deletions(-)