| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <320e7f6a93f50d00d7273ad8a2f06be928a6ed35.1728491453.git.nicolinc@nvidia.com>
Date: Wed, 9 Oct 2024 09:38:09 -0700
From: Nicolin Chen <nicolinc@...dia.com>
To: <jgg@...dia.com>, <kevin.tian@...el.com>, <will@...nel.org>
CC: <joro@...tes.org>, <suravee.suthikulpanit@....com>,
<robin.murphy@....com>, <dwmw2@...radead.org>, <baolu.lu@...ux.intel.com>,
<shuah@...nel.org>, <linux-kernel@...r.kernel.org>, <iommu@...ts.linux.dev>,
<linux-arm-kernel@...ts.infradead.org>, <linux-kselftest@...r.kernel.org>,
<eric.auger@...hat.com>, <jean-philippe@...aro.org>, <mdf@...nel.org>,
<mshavit@...gle.com>, <shameerali.kolothum.thodi@...wei.com>,
<smostafa@...gle.com>, <yi.l.liu@...el.com>, <aik@....com>,
<patches@...ts.linux.dev>
Subject: [PATCH v3 09/11] iommufd/selftest: Add IOMMU_VIOMMU_ALLOC test coverage
Add a new iommufd_viommu FIXTURE and setup it up with a vIOMMU object.
Any new vIOMMU feature will be added as a TEST_F under that.
Signed-off-by: Nicolin Chen <nicolinc@...dia.com>
---
tools/testing/selftests/iommu/iommufd_utils.h | 28 +++++++
tools/testing/selftests/iommu/iommufd.c | 84 +++++++++++++++++++
2 files changed, 112 insertions(+)
diff --git a/tools/testing/selftests/iommu/iommufd_utils.h b/tools/testing/selftests/iommu/iommufd_utils.h
index 40f6f14ce136..307d097db9dd 100644
--- a/tools/testing/selftests/iommu/iommufd_utils.h
+++ b/tools/testing/selftests/iommu/iommufd_utils.h
@@ -762,3 +762,31 @@ static int _test_cmd_trigger_iopf(int fd, __u32 device_id, __u32 fault_fd)
#define test_cmd_trigger_iopf(device_id, fault_fd) \
ASSERT_EQ(0, _test_cmd_trigger_iopf(self->fd, device_id, fault_fd))
+
+static int _test_cmd_viommu_alloc(int fd, __u32 device_id, __u32 hwpt_id,
+ __u32 type, __u32 flags, __u32 *viommu_id)
+{
+ struct iommu_viommu_alloc cmd = {
+ .size = sizeof(cmd),
+ .flags = flags,
+ .type = type,
+ .dev_id = device_id,
+ .hwpt_id = hwpt_id,
+ };
+ int ret;
+
+ ret = ioctl(fd, IOMMU_VIOMMU_ALLOC, &cmd);
+ if (ret)
+ return ret;
+ if (viommu_id)
+ *viommu_id = cmd.out_viommu_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))
diff --git a/tools/testing/selftests/iommu/iommufd.c b/tools/testing/selftests/iommu/iommufd.c
index 4927b9add5ad..c03705825576 100644
--- a/tools/testing/selftests/iommu/iommufd.c
+++ b/tools/testing/selftests/iommu/iommufd.c
@@ -128,6 +128,7 @@ TEST_F(iommufd, cmd_length)
TEST_LENGTH(iommu_ioas_unmap, IOMMU_IOAS_UNMAP, length);
TEST_LENGTH(iommu_option, IOMMU_OPTION, val64);
TEST_LENGTH(iommu_vfio_ioas, IOMMU_VFIO_IOAS, __reserved);
+ TEST_LENGTH(iommu_viommu_alloc, IOMMU_VIOMMU_ALLOC, out_viommu_id);
#undef TEST_LENGTH
}
@@ -2386,4 +2387,87 @@ TEST_F(vfio_compat_mock_domain, huge_map)
}
}
+FIXTURE(iommufd_viommu)
+{
+ int fd;
+ uint32_t ioas_id;
+ uint32_t stdev_id;
+ uint32_t hwpt_id;
+ uint32_t device_id;
+ uint32_t viommu_id;
+};
+
+FIXTURE_VARIANT(iommufd_viommu)
+{
+ unsigned int viommu;
+ unsigned int viommu_type;
+};
+
+FIXTURE_SETUP(iommufd_viommu)
+{
+ self->fd = open("/dev/iommu", O_RDWR);
+ ASSERT_NE(-1, self->fd);
+ test_ioctl_ioas_alloc(&self->ioas_id);
+ test_ioctl_set_default_memory_limit();
+
+ if (variant->viommu) {
+ test_cmd_mock_domain(self->ioas_id, &self->stdev_id, NULL,
+ &self->device_id);
+
+ /* Negative test -- invalid hwpt */
+ test_err_viommu_alloc(ENOENT, self->device_id, self->hwpt_id,
+ variant->viommu_type, &self->viommu_id);
+
+ /* Negative test -- not a nesting parent hwpt */
+ test_cmd_hwpt_alloc(self->device_id, self->ioas_id, 0,
+ &self->hwpt_id);
+ test_err_viommu_alloc(EINVAL, self->device_id, self->hwpt_id,
+ variant->viommu_type, &self->viommu_id);
+ test_ioctl_destroy(self->hwpt_id);
+
+ /* Allocate a nesting parent HWP */
+ test_cmd_hwpt_alloc(self->device_id, self->ioas_id,
+ IOMMU_HWPT_ALLOC_NEST_PARENT,
+ &self->hwpt_id);
+ /* Negative test -- unsupported viommu type */
+ test_err_viommu_alloc(EOPNOTSUPP, self->device_id,
+ self->hwpt_id, 0xdead, &self->viommu_id);
+ /* Allocate a default type of viommu */
+ test_cmd_viommu_alloc(self->device_id, self->hwpt_id,
+ variant->viommu_type, &self->viommu_id);
+ } else {
+ test_err_viommu_alloc(ENOENT, self->device_id, self->hwpt_id,
+ variant->viommu_type, &self->viommu_id);
+ }
+}
+
+FIXTURE_TEARDOWN(iommufd_viommu)
+{
+ if (variant->viommu) {
+ test_ioctl_destroy(self->viommu_id);
+ test_ioctl_destroy(self->hwpt_id);
+ }
+ teardown_iommufd(self->fd, _metadata);
+}
+
+FIXTURE_VARIANT_ADD(iommufd_viommu, no_viommu)
+{
+};
+
+FIXTURE_VARIANT_ADD(iommufd_viommu, viommu_default)
+{
+ .viommu = 1,
+ .viommu_type = IOMMU_VIOMMU_TYPE_DEFAULT,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_viommu, mock_viommu)
+{
+ .viommu = 1,
+ .viommu_type = IOMMU_VIOMMU_TYPE_SELFTEST,
+};
+
+TEST_F(iommufd_viommu, viommu_auto_destroy)
+{
+}
+
TEST_HARNESS_MAIN
--
2.43.0
Powered by blists - more mailing lists