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Diffstat (limited to 'tools/testing/selftests/iommu/iommufd.c')
-rw-r--r--tools/testing/selftests/iommu/iommufd.c104
1 files changed, 74 insertions, 30 deletions
diff --git a/tools/testing/selftests/iommu/iommufd.c b/tools/testing/selftests/iommu/iommufd.c
index fa08209268c4..e4a6b33cfde4 100644
--- a/tools/testing/selftests/iommu/iommufd.c
+++ b/tools/testing/selftests/iommu/iommufd.c
@@ -186,7 +186,8 @@ FIXTURE(iommufd_ioas)
{
int fd;
uint32_t ioas_id;
- uint32_t domain_id;
+ uint32_t stdev_id;
+ uint32_t hwpt_id;
uint64_t base_iova;
};
@@ -212,7 +213,8 @@ FIXTURE_SETUP(iommufd_ioas)
}
for (i = 0; i != variant->mock_domains; i++) {
- test_cmd_mock_domain(self->ioas_id, NULL, &self->domain_id);
+ test_cmd_mock_domain(self->ioas_id, &self->stdev_id,
+ &self->hwpt_id);
self->base_iova = MOCK_APERTURE_START;
}
}
@@ -249,8 +251,8 @@ TEST_F(iommufd_ioas, ioas_auto_destroy)
TEST_F(iommufd_ioas, ioas_destroy)
{
- if (self->domain_id) {
- /* IOAS cannot be freed while a domain is on it */
+ if (self->stdev_id) {
+ /* IOAS cannot be freed while a device has a HWPT using it */
EXPECT_ERRNO(EBUSY,
_test_ioctl_destroy(self->fd, self->ioas_id));
} else {
@@ -259,11 +261,21 @@ TEST_F(iommufd_ioas, ioas_destroy)
}
}
+TEST_F(iommufd_ioas, hwpt_attach)
+{
+ /* Create a device attached directly to a hwpt */
+ if (self->stdev_id) {
+ test_cmd_mock_domain(self->hwpt_id, NULL, NULL);
+ } else {
+ test_err_mock_domain(ENOENT, self->hwpt_id, NULL, NULL);
+ }
+}
+
TEST_F(iommufd_ioas, ioas_area_destroy)
{
/* Adding an area does not change ability to destroy */
test_ioctl_ioas_map_fixed(buffer, PAGE_SIZE, self->base_iova);
- if (self->domain_id)
+ if (self->stdev_id)
EXPECT_ERRNO(EBUSY,
_test_ioctl_destroy(self->fd, self->ioas_id));
else
@@ -382,7 +394,7 @@ TEST_F(iommufd_ioas, area_auto_iova)
for (i = 0; i != 10; i++) {
size_t length = PAGE_SIZE * (i + 1);
- if (self->domain_id) {
+ if (self->stdev_id) {
test_ioctl_ioas_map(buffer, length, &iovas[i]);
} else {
test_ioctl_ioas_map((void *)(1UL << 31), length,
@@ -418,7 +430,7 @@ TEST_F(iommufd_ioas, area_auto_iova)
ioctl(self->fd, IOMMU_IOAS_ALLOW_IOVAS, &allow_cmd));
/* Allocate from an allowed region */
- if (self->domain_id) {
+ if (self->stdev_id) {
ranges[0].start = MOCK_APERTURE_START + PAGE_SIZE;
ranges[0].last = MOCK_APERTURE_START + PAGE_SIZE * 600 - 1;
} else {
@@ -525,7 +537,7 @@ TEST_F(iommufd_ioas, iova_ranges)
/* Range can be read */
ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_IOVA_RANGES, &ranges_cmd));
EXPECT_EQ(1, ranges_cmd.num_iovas);
- if (!self->domain_id) {
+ if (!self->stdev_id) {
EXPECT_EQ(0, ranges[0].start);
EXPECT_EQ(SIZE_MAX, ranges[0].last);
EXPECT_EQ(1, ranges_cmd.out_iova_alignment);
@@ -550,7 +562,7 @@ TEST_F(iommufd_ioas, iova_ranges)
&test_cmd));
ranges_cmd.num_iovas = BUFFER_SIZE / sizeof(*ranges);
ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_IOVA_RANGES, &ranges_cmd));
- if (!self->domain_id) {
+ if (!self->stdev_id) {
EXPECT_EQ(2, ranges_cmd.num_iovas);
EXPECT_EQ(0, ranges[0].start);
EXPECT_EQ(PAGE_SIZE - 1, ranges[0].last);
@@ -565,7 +577,7 @@ TEST_F(iommufd_ioas, iova_ranges)
/* Buffer too small */
memset(ranges, 0, BUFFER_SIZE);
ranges_cmd.num_iovas = 1;
- if (!self->domain_id) {
+ if (!self->stdev_id) {
EXPECT_ERRNO(EMSGSIZE, ioctl(self->fd, IOMMU_IOAS_IOVA_RANGES,
&ranges_cmd));
EXPECT_EQ(2, ranges_cmd.num_iovas);
@@ -582,6 +594,40 @@ TEST_F(iommufd_ioas, iova_ranges)
EXPECT_EQ(0, ranges[1].last);
}
+TEST_F(iommufd_ioas, access_domain_destory)
+{
+ struct iommu_test_cmd access_cmd = {
+ .size = sizeof(access_cmd),
+ .op = IOMMU_TEST_OP_ACCESS_PAGES,
+ .access_pages = { .iova = self->base_iova + PAGE_SIZE,
+ .length = PAGE_SIZE},
+ };
+ size_t buf_size = 2 * HUGEPAGE_SIZE;
+ uint8_t *buf;
+
+ buf = mmap(0, buf_size, PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_ANONYMOUS | MAP_HUGETLB | MAP_POPULATE, -1,
+ 0);
+ ASSERT_NE(MAP_FAILED, buf);
+ test_ioctl_ioas_map_fixed(buf, buf_size, self->base_iova);
+
+ test_cmd_create_access(self->ioas_id, &access_cmd.id,
+ MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES);
+ access_cmd.access_pages.uptr = (uintptr_t)buf + PAGE_SIZE;
+ ASSERT_EQ(0,
+ ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_PAGES),
+ &access_cmd));
+
+ /* Causes a complicated unpin across a huge page boundary */
+ if (self->stdev_id)
+ test_ioctl_destroy(self->stdev_id);
+
+ test_cmd_destroy_access_pages(
+ access_cmd.id, access_cmd.access_pages.out_access_pages_id);
+ test_cmd_destroy_access(access_cmd.id);
+ ASSERT_EQ(0, munmap(buf, buf_size));
+}
+
TEST_F(iommufd_ioas, access_pin)
{
struct iommu_test_cmd access_cmd = {
@@ -605,7 +651,7 @@ TEST_F(iommufd_ioas, access_pin)
MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES);
for (npages = 1; npages < BUFFER_SIZE / PAGE_SIZE; npages++) {
- uint32_t mock_device_id;
+ uint32_t mock_stdev_id;
uint32_t mock_hwpt_id;
access_cmd.access_pages.length = npages * PAGE_SIZE;
@@ -637,15 +683,14 @@ TEST_F(iommufd_ioas, access_pin)
ASSERT_EQ(0, ioctl(self->fd,
_IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_PAGES),
&access_cmd));
- test_cmd_mock_domain(self->ioas_id, &mock_device_id,
+ test_cmd_mock_domain(self->ioas_id, &mock_stdev_id,
&mock_hwpt_id);
check_map_cmd.id = mock_hwpt_id;
ASSERT_EQ(0, ioctl(self->fd,
_IOMMU_TEST_CMD(IOMMU_TEST_OP_MD_CHECK_MAP),
&check_map_cmd));
- test_ioctl_destroy(mock_device_id);
- test_ioctl_destroy(mock_hwpt_id);
+ test_ioctl_destroy(mock_stdev_id);
test_cmd_destroy_access_pages(
access_cmd.id,
access_cmd.access_pages.out_access_pages_id);
@@ -789,7 +834,7 @@ TEST_F(iommufd_ioas, fork_gone)
ASSERT_NE(-1, child);
ASSERT_EQ(child, waitpid(child, NULL, 0));
- if (self->domain_id) {
+ if (self->stdev_id) {
/*
* If a domain already existed then everything was pinned within
* the fork, so this copies from one domain to another.
@@ -988,8 +1033,8 @@ FIXTURE(iommufd_mock_domain)
{
int fd;
uint32_t ioas_id;
- uint32_t domain_id;
- uint32_t domain_ids[2];
+ uint32_t hwpt_id;
+ uint32_t hwpt_ids[2];
int mmap_flags;
size_t mmap_buf_size;
};
@@ -1008,11 +1053,11 @@ FIXTURE_SETUP(iommufd_mock_domain)
ASSERT_NE(-1, self->fd);
test_ioctl_ioas_alloc(&self->ioas_id);
- ASSERT_GE(ARRAY_SIZE(self->domain_ids), variant->mock_domains);
+ ASSERT_GE(ARRAY_SIZE(self->hwpt_ids), variant->mock_domains);
for (i = 0; i != variant->mock_domains; i++)
- test_cmd_mock_domain(self->ioas_id, NULL, &self->domain_ids[i]);
- self->domain_id = self->domain_ids[0];
+ test_cmd_mock_domain(self->ioas_id, NULL, &self->hwpt_ids[i]);
+ self->hwpt_id = self->hwpt_ids[0];
self->mmap_flags = MAP_SHARED | MAP_ANONYMOUS;
self->mmap_buf_size = PAGE_SIZE * 8;
@@ -1061,7 +1106,7 @@ FIXTURE_VARIANT_ADD(iommufd_mock_domain, two_domains_hugepage)
struct iommu_test_cmd check_map_cmd = { \
.size = sizeof(check_map_cmd), \
.op = IOMMU_TEST_OP_MD_CHECK_MAP, \
- .id = self->domain_id, \
+ .id = self->hwpt_id, \
.check_map = { .iova = _iova, \
.length = _length, \
.uptr = (uintptr_t)(_ptr) }, \
@@ -1070,8 +1115,8 @@ FIXTURE_VARIANT_ADD(iommufd_mock_domain, two_domains_hugepage)
ioctl(self->fd, \
_IOMMU_TEST_CMD(IOMMU_TEST_OP_MD_CHECK_MAP), \
&check_map_cmd)); \
- if (self->domain_ids[1]) { \
- check_map_cmd.id = self->domain_ids[1]; \
+ if (self->hwpt_ids[1]) { \
+ check_map_cmd.id = self->hwpt_ids[1]; \
ASSERT_EQ(0, \
ioctl(self->fd, \
_IOMMU_TEST_CMD( \
@@ -1197,15 +1242,15 @@ TEST_F(iommufd_mock_domain, all_aligns_copy)
for (; end < buf_size; end += MOCK_PAGE_SIZE) {
size_t length = end - start;
unsigned int old_id;
- uint32_t mock_device_id;
+ uint32_t mock_stdev_id;
__u64 iova;
test_ioctl_ioas_map(buf + start, length, &iova);
/* Add and destroy a domain while the area exists */
- old_id = self->domain_ids[1];
- test_cmd_mock_domain(self->ioas_id, &mock_device_id,
- &self->domain_ids[1]);
+ old_id = self->hwpt_ids[1];
+ test_cmd_mock_domain(self->ioas_id, &mock_stdev_id,
+ &self->hwpt_ids[1]);
check_mock_iova(buf + start, iova, length);
check_refs(buf + start / PAGE_SIZE * PAGE_SIZE,
@@ -1213,9 +1258,8 @@ TEST_F(iommufd_mock_domain, all_aligns_copy)
start / PAGE_SIZE * PAGE_SIZE,
1);
- test_ioctl_destroy(mock_device_id);
- test_ioctl_destroy(self->domain_ids[1]);
- self->domain_ids[1] = old_id;
+ test_ioctl_destroy(mock_stdev_id);
+ self->hwpt_ids[1] = old_id;
test_ioctl_ioas_unmap(iova, length);
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-03 17:14:42 +0300