diff options
Diffstat (limited to 'tools/testing/selftests/iommu/iommufd_utils.h')
-rw-r--r-- | tools/testing/selftests/iommu/iommufd_utils.h | 489 |
1 files changed, 478 insertions, 11 deletions
diff --git a/tools/testing/selftests/iommu/iommufd_utils.h b/tools/testing/selftests/iommu/iommufd_utils.h index 8d2b46b2114d..72f6636e5d90 100644 --- a/tools/testing/selftests/iommu/iommufd_utils.h +++ b/tools/testing/selftests/iommu/iommufd_utils.h @@ -9,6 +9,7 @@ #include <sys/ioctl.h> #include <stdint.h> #include <assert.h> +#include <poll.h> #include "../kselftest_harness.h" #include "../../../../drivers/iommu/iommufd/iommufd_test.h" @@ -22,6 +23,14 @@ #define BIT_MASK(nr) (1UL << ((nr) % __BITS_PER_LONG)) #define BIT_WORD(nr) ((nr) / __BITS_PER_LONG) +enum { + IOPT_PAGES_ACCOUNT_NONE = 0, + IOPT_PAGES_ACCOUNT_USER = 1, + IOPT_PAGES_ACCOUNT_MM = 2, +}; + +#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) + static inline void set_bit(unsigned int nr, unsigned long *addr) { unsigned long mask = BIT_MASK(nr); @@ -38,12 +47,28 @@ static inline bool test_bit(unsigned int nr, unsigned long *addr) static void *buffer; static unsigned long BUFFER_SIZE; +static void *mfd_buffer; +static int mfd; + static unsigned long PAGE_SIZE; #define sizeof_field(TYPE, MEMBER) sizeof((((TYPE *)0)->MEMBER)) #define offsetofend(TYPE, MEMBER) \ (offsetof(TYPE, MEMBER) + sizeof_field(TYPE, MEMBER)) +static inline void *memfd_mmap(size_t length, int prot, int flags, int *mfd_p) +{ + int mfd_flags = (flags & MAP_HUGETLB) ? MFD_HUGETLB : 0; + int mfd = memfd_create("buffer", mfd_flags); + + if (mfd <= 0) + return MAP_FAILED; + if (ftruncate(mfd, length)) + return MAP_FAILED; + *mfd_p = mfd; + return mmap(0, length, prot, flags, mfd, 0); +} + /* * Have the kernel check the refcount on pages. I don't know why a freshly * mmap'd anon non-compound page starts out with a ref of 3 @@ -153,7 +178,7 @@ static int _test_cmd_mock_domain_replace(int fd, __u32 stdev_id, __u32 pt_id, EXPECT_ERRNO(_errno, _test_cmd_mock_domain_replace(self->fd, stdev_id, \ pt_id, NULL)) -static int _test_cmd_hwpt_alloc(int fd, __u32 device_id, __u32 pt_id, +static int _test_cmd_hwpt_alloc(int fd, __u32 device_id, __u32 pt_id, __u32 ft_id, __u32 flags, __u32 *hwpt_id, __u32 data_type, void *data, size_t data_len) { @@ -165,6 +190,7 @@ static int _test_cmd_hwpt_alloc(int fd, __u32 device_id, __u32 pt_id, .data_type = data_type, .data_len = data_len, .data_uptr = (uint64_t)data, + .fault_id = ft_id, }; int ret; @@ -177,24 +203,36 @@ static int _test_cmd_hwpt_alloc(int fd, __u32 device_id, __u32 pt_id, } #define test_cmd_hwpt_alloc(device_id, pt_id, flags, hwpt_id) \ - ASSERT_EQ(0, _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, flags, \ + ASSERT_EQ(0, _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, 0, flags, \ hwpt_id, IOMMU_HWPT_DATA_NONE, NULL, \ 0)) #define test_err_hwpt_alloc(_errno, device_id, pt_id, flags, hwpt_id) \ EXPECT_ERRNO(_errno, _test_cmd_hwpt_alloc( \ - self->fd, device_id, pt_id, flags, \ + self->fd, device_id, pt_id, 0, flags, \ hwpt_id, IOMMU_HWPT_DATA_NONE, NULL, 0)) #define test_cmd_hwpt_alloc_nested(device_id, pt_id, flags, hwpt_id, \ data_type, data, data_len) \ - ASSERT_EQ(0, _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, flags, \ + ASSERT_EQ(0, _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, 0, flags, \ hwpt_id, data_type, data, data_len)) #define test_err_hwpt_alloc_nested(_errno, device_id, pt_id, flags, hwpt_id, \ data_type, data, data_len) \ EXPECT_ERRNO(_errno, \ - _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, flags, \ + _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, 0, flags, \ hwpt_id, data_type, data, data_len)) +#define test_cmd_hwpt_alloc_iopf(device_id, pt_id, fault_id, flags, hwpt_id, \ + data_type, data, data_len) \ + ASSERT_EQ(0, _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, fault_id, \ + flags, hwpt_id, data_type, data, \ + data_len)) +#define test_err_hwpt_alloc_iopf(_errno, device_id, pt_id, fault_id, flags, \ + hwpt_id, data_type, data, data_len) \ + EXPECT_ERRNO(_errno, \ + _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, fault_id, \ + flags, hwpt_id, data_type, data, \ + data_len)) + #define test_cmd_hwpt_check_iotlb(hwpt_id, iotlb_id, expected) \ ({ \ struct iommu_test_cmd test_cmd = { \ @@ -219,6 +257,30 @@ static int _test_cmd_hwpt_alloc(int fd, __u32 device_id, __u32 pt_id, test_cmd_hwpt_check_iotlb(hwpt_id, i, expected); \ }) +#define test_cmd_dev_check_cache(device_id, cache_id, expected) \ + ({ \ + struct iommu_test_cmd test_cmd = { \ + .size = sizeof(test_cmd), \ + .op = IOMMU_TEST_OP_DEV_CHECK_CACHE, \ + .id = device_id, \ + .check_dev_cache = { \ + .id = cache_id, \ + .cache = expected, \ + }, \ + }; \ + ASSERT_EQ(0, ioctl(self->fd, \ + _IOMMU_TEST_CMD( \ + IOMMU_TEST_OP_DEV_CHECK_CACHE), \ + &test_cmd)); \ + }) + +#define test_cmd_dev_check_cache_all(device_id, expected) \ + ({ \ + int c; \ + for (c = 0; c < MOCK_DEV_CACHE_NUM; c++) \ + test_cmd_dev_check_cache(device_id, c, expected); \ + }) + static int _test_cmd_hwpt_invalidate(int fd, __u32 hwpt_id, void *reqs, uint32_t data_type, uint32_t lreq, uint32_t *nreqs) @@ -250,6 +312,38 @@ static int _test_cmd_hwpt_invalidate(int fd, __u32 hwpt_id, void *reqs, data_type, lreq, nreqs)); \ }) +static int _test_cmd_viommu_invalidate(int fd, __u32 viommu_id, void *reqs, + uint32_t data_type, uint32_t lreq, + uint32_t *nreqs) +{ + struct iommu_hwpt_invalidate cmd = { + .size = sizeof(cmd), + .hwpt_id = viommu_id, + .data_type = data_type, + .data_uptr = (uint64_t)reqs, + .entry_len = lreq, + .entry_num = *nreqs, + }; + int rc = ioctl(fd, IOMMU_HWPT_INVALIDATE, &cmd); + *nreqs = cmd.entry_num; + return rc; +} + +#define test_cmd_viommu_invalidate(viommu, reqs, lreq, nreqs) \ + ({ \ + ASSERT_EQ(0, \ + _test_cmd_viommu_invalidate(self->fd, viommu, reqs, \ + IOMMU_VIOMMU_INVALIDATE_DATA_SELFTEST, \ + lreq, nreqs)); \ + }) +#define test_err_viommu_invalidate(_errno, viommu_id, reqs, data_type, lreq, \ + nreqs) \ + ({ \ + EXPECT_ERRNO(_errno, _test_cmd_viommu_invalidate( \ + self->fd, viommu_id, reqs, \ + data_type, lreq, nreqs)); \ + }) + static int _test_cmd_access_replace_ioas(int fd, __u32 access_id, unsigned int ioas_id) { @@ -346,12 +440,12 @@ static int _test_cmd_mock_domain_set_dirty(int fd, __u32 hwpt_id, size_t length, static int _test_mock_dirty_bitmaps(int fd, __u32 hwpt_id, size_t length, __u64 iova, size_t page_size, size_t pte_page_size, __u64 *bitmap, - __u64 bitmap_size, __u32 flags, + __u64 nbits, __u32 flags, struct __test_metadata *_metadata) { unsigned long npte = pte_page_size / page_size, pteset = 2 * npte; - unsigned long nbits = bitmap_size * BITS_PER_BYTE; unsigned long j, i, nr = nbits / pteset ?: 1; + unsigned long bitmap_size = DIV_ROUND_UP(nbits, BITS_PER_BYTE); __u64 out_dirty = 0; /* Mark all even bits as dirty in the mock domain */ @@ -574,6 +668,47 @@ static int _test_ioctl_ioas_unmap(int fd, unsigned int ioas_id, uint64_t iova, EXPECT_ERRNO(_errno, _test_ioctl_ioas_unmap(self->fd, self->ioas_id, \ iova, length, NULL)) +static int _test_ioctl_ioas_map_file(int fd, unsigned int ioas_id, int mfd, + size_t start, size_t length, __u64 *iova, + unsigned int flags) +{ + struct iommu_ioas_map_file cmd = { + .size = sizeof(cmd), + .flags = flags, + .ioas_id = ioas_id, + .fd = mfd, + .start = start, + .length = length, + }; + int ret; + + if (flags & IOMMU_IOAS_MAP_FIXED_IOVA) + cmd.iova = *iova; + + ret = ioctl(fd, IOMMU_IOAS_MAP_FILE, &cmd); + *iova = cmd.iova; + return ret; +} + +#define test_ioctl_ioas_map_file(mfd, start, length, iova_p) \ + ASSERT_EQ(0, \ + _test_ioctl_ioas_map_file( \ + self->fd, self->ioas_id, mfd, start, length, iova_p, \ + IOMMU_IOAS_MAP_WRITEABLE | IOMMU_IOAS_MAP_READABLE)) + +#define test_err_ioctl_ioas_map_file(_errno, mfd, start, length, iova_p) \ + EXPECT_ERRNO( \ + _errno, \ + _test_ioctl_ioas_map_file( \ + self->fd, self->ioas_id, mfd, start, length, iova_p, \ + IOMMU_IOAS_MAP_WRITEABLE | IOMMU_IOAS_MAP_READABLE)) + +#define test_ioctl_ioas_map_id_file(ioas_id, mfd, start, length, iova_p) \ + ASSERT_EQ(0, \ + _test_ioctl_ioas_map_file( \ + self->fd, ioas_id, mfd, start, length, iova_p, \ + IOMMU_IOAS_MAP_WRITEABLE | IOMMU_IOAS_MAP_READABLE)) + static int _test_ioctl_set_temp_memory_limit(int fd, unsigned int limit) { struct iommu_test_cmd memlimit_cmd = { @@ -623,7 +758,8 @@ static void teardown_iommufd(int fd, struct __test_metadata *_metadata) /* @data can be NULL */ static int _test_cmd_get_hw_info(int fd, __u32 device_id, void *data, - size_t data_len, uint32_t *capabilities) + size_t data_len, uint32_t *capabilities, + uint8_t *max_pasid) { struct iommu_test_hw_info *info = (struct iommu_test_hw_info *)data; struct iommu_hw_info cmd = { @@ -668,6 +804,9 @@ static int _test_cmd_get_hw_info(int fd, __u32 device_id, void *data, assert(!info->flags); } + if (max_pasid) + *max_pasid = cmd.out_max_pasid_log2; + if (capabilities) *capabilities = cmd.out_capabilities; @@ -676,11 +815,339 @@ static int _test_cmd_get_hw_info(int fd, __u32 device_id, void *data, #define test_cmd_get_hw_info(device_id, data, data_len) \ ASSERT_EQ(0, _test_cmd_get_hw_info(self->fd, device_id, data, \ - data_len, NULL)) + data_len, NULL, NULL)) #define test_err_get_hw_info(_errno, device_id, data, data_len) \ EXPECT_ERRNO(_errno, _test_cmd_get_hw_info(self->fd, device_id, data, \ - data_len, NULL)) + data_len, NULL, NULL)) #define test_cmd_get_hw_capabilities(device_id, caps, mask) \ - ASSERT_EQ(0, _test_cmd_get_hw_info(self->fd, device_id, NULL, 0, &caps)) + ASSERT_EQ(0, _test_cmd_get_hw_info(self->fd, device_id, NULL, \ + 0, &caps, NULL)) + +#define test_cmd_get_hw_info_pasid(device_id, max_pasid) \ + ASSERT_EQ(0, _test_cmd_get_hw_info(self->fd, device_id, NULL, \ + 0, NULL, max_pasid)) + +static int _test_ioctl_fault_alloc(int fd, __u32 *fault_id, __u32 *fault_fd) +{ + struct iommu_fault_alloc cmd = { + .size = sizeof(cmd), + }; + int ret; + + ret = ioctl(fd, IOMMU_FAULT_QUEUE_ALLOC, &cmd); + if (ret) + return ret; + *fault_id = cmd.out_fault_id; + *fault_fd = cmd.out_fault_fd; + return 0; +} + +#define test_ioctl_fault_alloc(fault_id, fault_fd) \ + ({ \ + ASSERT_EQ(0, _test_ioctl_fault_alloc(self->fd, fault_id, \ + fault_fd)); \ + ASSERT_NE(0, *(fault_id)); \ + ASSERT_NE(0, *(fault_fd)); \ + }) + +static int _test_cmd_trigger_iopf(int fd, __u32 device_id, __u32 pasid, + __u32 fault_fd) +{ + struct iommu_test_cmd trigger_iopf_cmd = { + .size = sizeof(trigger_iopf_cmd), + .op = IOMMU_TEST_OP_TRIGGER_IOPF, + .trigger_iopf = { + .dev_id = device_id, + .pasid = pasid, + .grpid = 0x2, + .perm = IOMMU_PGFAULT_PERM_READ | IOMMU_PGFAULT_PERM_WRITE, + .addr = 0xdeadbeaf, + }, + }; + struct iommu_hwpt_page_response response = { + .code = IOMMUFD_PAGE_RESP_SUCCESS, + }; + struct iommu_hwpt_pgfault fault = {}; + ssize_t bytes; + int ret; + + ret = ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_TRIGGER_IOPF), &trigger_iopf_cmd); + if (ret) + return ret; + + bytes = read(fault_fd, &fault, sizeof(fault)); + if (bytes <= 0) + return -EIO; + + response.cookie = fault.cookie; + + bytes = write(fault_fd, &response, sizeof(response)); + if (bytes <= 0) + return -EIO; + + return 0; +} + +#define test_cmd_trigger_iopf(device_id, fault_fd) \ + ASSERT_EQ(0, _test_cmd_trigger_iopf(self->fd, device_id, 0x1, fault_fd)) +#define test_cmd_trigger_iopf_pasid(device_id, pasid, fault_fd) \ + ASSERT_EQ(0, _test_cmd_trigger_iopf(self->fd, device_id, \ + pasid, 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)) + +static int _test_cmd_vdevice_alloc(int fd, __u32 viommu_id, __u32 idev_id, + __u64 virt_id, __u32 *vdev_id) +{ + struct iommu_vdevice_alloc cmd = { + .size = sizeof(cmd), + .dev_id = idev_id, + .viommu_id = viommu_id, + .virt_id = virt_id, + }; + int ret; + + ret = ioctl(fd, IOMMU_VDEVICE_ALLOC, &cmd); + if (ret) + return ret; + if (vdev_id) + *vdev_id = cmd.out_vdevice_id; + return 0; +} + +#define test_cmd_vdevice_alloc(viommu_id, idev_id, virt_id, vdev_id) \ + ASSERT_EQ(0, _test_cmd_vdevice_alloc(self->fd, viommu_id, idev_id, \ + virt_id, vdev_id)) +#define test_err_vdevice_alloc(_errno, viommu_id, idev_id, virt_id, vdev_id) \ + EXPECT_ERRNO(_errno, \ + _test_cmd_vdevice_alloc(self->fd, viommu_id, idev_id, \ + virt_id, vdev_id)) + +static int _test_cmd_veventq_alloc(int fd, __u32 viommu_id, __u32 type, + __u32 *veventq_id, __u32 *veventq_fd) +{ + struct iommu_veventq_alloc cmd = { + .size = sizeof(cmd), + .type = type, + .veventq_depth = 2, + .viommu_id = viommu_id, + }; + int ret; + + ret = ioctl(fd, IOMMU_VEVENTQ_ALLOC, &cmd); + if (ret) + return ret; + if (veventq_id) + *veventq_id = cmd.out_veventq_id; + if (veventq_fd) + *veventq_fd = cmd.out_veventq_fd; + return 0; +} + +#define test_cmd_veventq_alloc(viommu_id, type, veventq_id, veventq_fd) \ + ASSERT_EQ(0, _test_cmd_veventq_alloc(self->fd, viommu_id, type, \ + veventq_id, veventq_fd)) +#define test_err_veventq_alloc(_errno, viommu_id, type, veventq_id, \ + veventq_fd) \ + EXPECT_ERRNO(_errno, \ + _test_cmd_veventq_alloc(self->fd, viommu_id, type, \ + veventq_id, veventq_fd)) + +static int _test_cmd_trigger_vevents(int fd, __u32 dev_id, __u32 nvevents) +{ + struct iommu_test_cmd trigger_vevent_cmd = { + .size = sizeof(trigger_vevent_cmd), + .op = IOMMU_TEST_OP_TRIGGER_VEVENT, + .trigger_vevent = { + .dev_id = dev_id, + }, + }; + int ret; + + while (nvevents--) { + ret = ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_TRIGGER_VEVENT), + &trigger_vevent_cmd); + if (ret < 0) + return -1; + } + return ret; +} + +#define test_cmd_trigger_vevents(dev_id, nvevents) \ + ASSERT_EQ(0, _test_cmd_trigger_vevents(self->fd, dev_id, nvevents)) + +static int _test_cmd_read_vevents(int fd, __u32 event_fd, __u32 nvevents, + __u32 virt_id, int *prev_seq) +{ + struct pollfd pollfd = { .fd = event_fd, .events = POLLIN }; + struct iommu_viommu_event_selftest *event; + struct iommufd_vevent_header *hdr; + ssize_t bytes; + void *data; + int ret, i; + + ret = poll(&pollfd, 1, 1000); + if (ret < 0) + return -1; + + data = calloc(nvevents, sizeof(*hdr) + sizeof(*event)); + if (!data) { + errno = ENOMEM; + return -1; + } + + bytes = read(event_fd, data, + nvevents * (sizeof(*hdr) + sizeof(*event))); + if (bytes <= 0) { + errno = EFAULT; + ret = -1; + goto out_free; + } + + for (i = 0; i < nvevents; i++) { + hdr = data + i * (sizeof(*hdr) + sizeof(*event)); + + if (hdr->flags & IOMMU_VEVENTQ_FLAG_LOST_EVENTS || + hdr->sequence - *prev_seq > 1) { + *prev_seq = hdr->sequence; + errno = EOVERFLOW; + ret = -1; + goto out_free; + } + *prev_seq = hdr->sequence; + event = data + sizeof(*hdr); + if (event->virt_id != virt_id) { + errno = EINVAL; + ret = -1; + goto out_free; + } + } + + ret = 0; +out_free: + free(data); + return ret; +} + +#define test_cmd_read_vevents(event_fd, nvevents, virt_id, prev_seq) \ + ASSERT_EQ(0, _test_cmd_read_vevents(self->fd, event_fd, nvevents, \ + virt_id, prev_seq)) +#define test_err_read_vevents(_errno, event_fd, nvevents, virt_id, prev_seq) \ + EXPECT_ERRNO(_errno, \ + _test_cmd_read_vevents(self->fd, event_fd, nvevents, \ + virt_id, prev_seq)) + +static int _test_cmd_pasid_attach(int fd, __u32 stdev_id, __u32 pasid, + __u32 pt_id) +{ + struct iommu_test_cmd test_attach = { + .size = sizeof(test_attach), + .op = IOMMU_TEST_OP_PASID_ATTACH, + .id = stdev_id, + .pasid_attach = { + .pasid = pasid, + .pt_id = pt_id, + }, + }; + + return ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_PASID_ATTACH), + &test_attach); +} + +#define test_cmd_pasid_attach(pasid, hwpt_id) \ + ASSERT_EQ(0, _test_cmd_pasid_attach(self->fd, self->stdev_id, \ + pasid, hwpt_id)) + +#define test_err_pasid_attach(_errno, pasid, hwpt_id) \ + EXPECT_ERRNO(_errno, \ + _test_cmd_pasid_attach(self->fd, self->stdev_id, \ + pasid, hwpt_id)) + +static int _test_cmd_pasid_replace(int fd, __u32 stdev_id, __u32 pasid, + __u32 pt_id) +{ + struct iommu_test_cmd test_replace = { + .size = sizeof(test_replace), + .op = IOMMU_TEST_OP_PASID_REPLACE, + .id = stdev_id, + .pasid_replace = { + .pasid = pasid, + .pt_id = pt_id, + }, + }; + + return ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_PASID_REPLACE), + &test_replace); +} + +#define test_cmd_pasid_replace(pasid, hwpt_id) \ + ASSERT_EQ(0, _test_cmd_pasid_replace(self->fd, self->stdev_id, \ + pasid, hwpt_id)) + +#define test_err_pasid_replace(_errno, pasid, hwpt_id) \ + EXPECT_ERRNO(_errno, \ + _test_cmd_pasid_replace(self->fd, self->stdev_id, \ + pasid, hwpt_id)) + +static int _test_cmd_pasid_detach(int fd, __u32 stdev_id, __u32 pasid) +{ + struct iommu_test_cmd test_detach = { + .size = sizeof(test_detach), + .op = IOMMU_TEST_OP_PASID_DETACH, + .id = stdev_id, + .pasid_detach = { + .pasid = pasid, + }, + }; + + return ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_PASID_DETACH), + &test_detach); +} + +#define test_cmd_pasid_detach(pasid) \ + ASSERT_EQ(0, _test_cmd_pasid_detach(self->fd, self->stdev_id, pasid)) + +static int test_cmd_pasid_check_hwpt(int fd, __u32 stdev_id, __u32 pasid, + __u32 hwpt_id) +{ + struct iommu_test_cmd test_pasid_check = { + .size = sizeof(test_pasid_check), + .op = IOMMU_TEST_OP_PASID_CHECK_HWPT, + .id = stdev_id, + .pasid_check = { + .pasid = pasid, + .hwpt_id = hwpt_id, + }, + }; + + return ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_PASID_CHECK_HWPT), + &test_pasid_check); +} |