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Re: [PATCH V7 9/9] iommufd: map file selftest

by Steven Sistare

cc linux-selftest - Steve On 10/25/2024 9:11 AM, Steve Sistare wrote: > Add test cases to exercise IOMMU_IOAS_MAP_FILE. > > Signed-off-by: Steve Sistare <steven.sistare(a)oracle.com> > Reviewed-by: Nicolin Chen <nicolinc(a)nvidia.com> > --- > tools/testing/selftests/iommu/iommufd.c | 124 ++++++++++++++++++++--- > tools/testing/selftests/iommu/iommufd_fail_nth.c | 39 +++++++ > tools/testing/selftests/iommu/iommufd_utils.h | 57 +++++++++++ > 3 files changed, 205 insertions(+), 15 deletions(-) > > diff --git a/tools/testing/selftests/iommu/iommufd.c b/tools/testing/selftests/iommu/iommufd.c > index 4927b9a..88b92bb 100644 > --- a/tools/testing/selftests/iommu/iommufd.c > +++ b/tools/testing/selftests/iommu/iommufd.c > @@ -1,5 +1,6 @@ > // SPDX-License-Identifier: GPL-2.0-only > /* Copyright (c) 2021-2022, NVIDIA CORPORATION & AFFILIATES */ > +#include <asm/unistd.h> > #include <stdlib.h> > #include <sys/mman.h> > #include <sys/eventfd.h> > @@ -49,6 +50,9 @@ static __attribute__((constructor)) void setup_sizes(void) > vrc = mmap(buffer, BUFFER_SIZE, PROT_READ | PROT_WRITE, > MAP_SHARED | MAP_ANONYMOUS | MAP_FIXED, -1, 0); > assert(vrc == buffer); > + > + mfd_buffer = memfd_mmap(BUFFER_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, > + &mfd); > } > > FIXTURE(iommufd) > @@ -128,6 +132,7 @@ static __attribute__((constructor)) void setup_sizes(void) > 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_ioas_map_file, IOMMU_IOAS_MAP_FILE, iova); > #undef TEST_LENGTH > } > > @@ -1372,6 +1377,7 @@ static void check_access_rw(struct __test_metadata *_metadata, int fd, > { > unsigned int mock_domains; > bool hugepages; > + bool file; > }; > > FIXTURE_SETUP(iommufd_mock_domain) > @@ -1410,26 +1416,45 @@ static void check_access_rw(struct __test_metadata *_metadata, int fd, > { > .mock_domains = 1, > .hugepages = false, > + .file = false, > }; > > FIXTURE_VARIANT_ADD(iommufd_mock_domain, two_domains) > { > .mock_domains = 2, > .hugepages = false, > + .file = false, > }; > > FIXTURE_VARIANT_ADD(iommufd_mock_domain, one_domain_hugepage) > { > .mock_domains = 1, > .hugepages = true, > + .file = false, > }; > > FIXTURE_VARIANT_ADD(iommufd_mock_domain, two_domains_hugepage) > { > .mock_domains = 2, > .hugepages = true, > + .file = false, > }; > > +FIXTURE_VARIANT_ADD(iommufd_mock_domain, one_domain_file) > +{ > + .mock_domains = 1, > + .hugepages = false, > + .file = true, > +}; > + > +FIXTURE_VARIANT_ADD(iommufd_mock_domain, one_domain_file_hugepage) > +{ > + .mock_domains = 1, > + .hugepages = true, > + .file = true, > +}; > + > + > /* Have the kernel check that the user pages made it to the iommu_domain */ > #define check_mock_iova(_ptr, _iova, _length) \ > ({ \ > @@ -1455,7 +1480,10 @@ static void check_access_rw(struct __test_metadata *_metadata, int fd, > } \ > }) > > -TEST_F(iommufd_mock_domain, basic) > +static void > +test_basic_mmap(struct __test_metadata *_metadata, > + struct _test_data_iommufd_mock_domain *self, > + const struct _fixture_variant_iommufd_mock_domain *variant) > { > size_t buf_size = self->mmap_buf_size; > uint8_t *buf; > @@ -1478,6 +1506,40 @@ static void check_access_rw(struct __test_metadata *_metadata, int fd, > test_err_ioctl_ioas_map(EFAULT, buf, buf_size, &iova); > } > > +static void > +test_basic_file(struct __test_metadata *_metadata, > + struct _test_data_iommufd_mock_domain *self, > + const struct _fixture_variant_iommufd_mock_domain *variant) > +{ > + size_t buf_size = self->mmap_buf_size; > + uint8_t *buf; > + __u64 iova; > + int mfd_tmp; > + int prot = PROT_READ | PROT_WRITE; > + > + /* Simple one page map */ > + test_ioctl_ioas_map_file(mfd, 0, PAGE_SIZE, &iova); > + check_mock_iova(mfd_buffer, iova, PAGE_SIZE); > + > + buf = memfd_mmap(buf_size, prot, MAP_SHARED, &mfd_tmp); > + ASSERT_NE(MAP_FAILED, buf); > + > + test_err_ioctl_ioas_map_file(EINVAL, mfd_tmp, 0, buf_size + 1, &iova); > + > + ASSERT_EQ(0, ftruncate(mfd_tmp, 0)); > + test_err_ioctl_ioas_map_file(EINVAL, mfd_tmp, 0, buf_size, &iova); > + > + close(mfd_tmp); > +} > + > +TEST_F(iommufd_mock_domain, basic) > +{ > + if (variant->file) > + test_basic_file(_metadata, self, variant); > + else > + test_basic_mmap(_metadata, self, variant); > +} > + > TEST_F(iommufd_mock_domain, ro_unshare) > { > uint8_t *buf; > @@ -1513,9 +1575,13 @@ static void check_access_rw(struct __test_metadata *_metadata, int fd, > unsigned int start; > unsigned int end; > uint8_t *buf; > + int prot = PROT_READ | PROT_WRITE; > + int mfd; > > - buf = mmap(0, buf_size, PROT_READ | PROT_WRITE, self->mmap_flags, -1, > - 0); > + if (variant->file) > + buf = memfd_mmap(buf_size, prot, MAP_SHARED, &mfd); > + else > + buf = mmap(0, buf_size, prot, self->mmap_flags, -1, 0); > ASSERT_NE(MAP_FAILED, buf); > check_refs(buf, buf_size, 0); > > @@ -1532,7 +1598,12 @@ static void check_access_rw(struct __test_metadata *_metadata, int fd, > size_t length = end - start; > __u64 iova; > > - test_ioctl_ioas_map(buf + start, length, &iova); > + if (variant->file) { > + test_ioctl_ioas_map_file(mfd, start, length, > + &iova); > + } else { > + test_ioctl_ioas_map(buf + start, length, &iova); > + } > check_mock_iova(buf + start, iova, length); > check_refs(buf + start / PAGE_SIZE * PAGE_SIZE, > end / PAGE_SIZE * PAGE_SIZE - > @@ -1544,6 +1615,8 @@ static void check_access_rw(struct __test_metadata *_metadata, int fd, > } > check_refs(buf, buf_size, 0); > ASSERT_EQ(0, munmap(buf, buf_size)); > + if (variant->file) > + close(mfd); > } > > TEST_F(iommufd_mock_domain, all_aligns_copy) > @@ -1554,9 +1627,13 @@ static void check_access_rw(struct __test_metadata *_metadata, int fd, > unsigned int start; > unsigned int end; > uint8_t *buf; > + int prot = PROT_READ | PROT_WRITE; > + int mfd; > > - buf = mmap(0, buf_size, PROT_READ | PROT_WRITE, self->mmap_flags, -1, > - 0); > + if (variant->file) > + buf = memfd_mmap(buf_size, prot, MAP_SHARED, &mfd); > + else > + buf = mmap(0, buf_size, prot, self->mmap_flags, -1, 0); > ASSERT_NE(MAP_FAILED, buf); > check_refs(buf, buf_size, 0); > > @@ -1575,7 +1652,12 @@ static void check_access_rw(struct __test_metadata *_metadata, int fd, > uint32_t mock_stdev_id; > __u64 iova; > > - test_ioctl_ioas_map(buf + start, length, &iova); > + if (variant->file) { > + test_ioctl_ioas_map_file(mfd, start, length, > + &iova); > + } else { > + test_ioctl_ioas_map(buf + start, length, &iova); > + } > > /* Add and destroy a domain while the area exists */ > old_id = self->hwpt_ids[1]; > @@ -1596,15 +1678,18 @@ static void check_access_rw(struct __test_metadata *_metadata, int fd, > } > check_refs(buf, buf_size, 0); > ASSERT_EQ(0, munmap(buf, buf_size)); > + if (variant->file) > + close(mfd); > } > > TEST_F(iommufd_mock_domain, user_copy) > { > + void *buf = variant->file ? mfd_buffer : buffer; > struct iommu_test_cmd access_cmd = { > .size = sizeof(access_cmd), > .op = IOMMU_TEST_OP_ACCESS_PAGES, > .access_pages = { .length = BUFFER_SIZE, > - .uptr = (uintptr_t)buffer }, > + .uptr = (uintptr_t)buf }, > }; > struct iommu_ioas_copy copy_cmd = { > .size = sizeof(copy_cmd), > @@ -1623,9 +1708,13 @@ static void check_access_rw(struct __test_metadata *_metadata, int fd, > > /* Pin the pages in an IOAS with no domains then copy to an IOAS with domains */ > test_ioctl_ioas_alloc(&ioas_id); > - test_ioctl_ioas_map_id(ioas_id, buffer, BUFFER_SIZE, > - &copy_cmd.src_iova); > - > + if (variant->file) { > + test_ioctl_ioas_map_id_file(ioas_id, mfd, 0, BUFFER_SIZE, > + &copy_cmd.src_iova); > + } else { > + test_ioctl_ioas_map_id(ioas_id, buf, BUFFER_SIZE, > + &copy_cmd.src_iova); > + } > test_cmd_create_access(ioas_id, &access_cmd.id, > MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES); > > @@ -1635,12 +1724,17 @@ static void check_access_rw(struct __test_metadata *_metadata, int fd, > &access_cmd)); > copy_cmd.src_ioas_id = ioas_id; > ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_COPY, &copy_cmd)); > - check_mock_iova(buffer, MOCK_APERTURE_START, BUFFER_SIZE); > + check_mock_iova(buf, MOCK_APERTURE_START, BUFFER_SIZE); > > /* Now replace the ioas with a new one */ > test_ioctl_ioas_alloc(&new_ioas_id); > - test_ioctl_ioas_map_id(new_ioas_id, buffer, BUFFER_SIZE, > - &copy_cmd.src_iova); > + if (variant->file) { > + test_ioctl_ioas_map_id_file(new_ioas_id, mfd, 0, BUFFER_SIZE, > + &copy_cmd.src_iova); > + } else { > + test_ioctl_ioas_map_id(new_ioas_id, buf, BUFFER_SIZE, > + &copy_cmd.src_iova); > + } > test_cmd_access_replace_ioas(access_cmd.id, new_ioas_id); > > /* Destroy the old ioas and cleanup copied mapping */ > @@ -1654,7 +1748,7 @@ static void check_access_rw(struct __test_metadata *_metadata, int fd, > &access_cmd)); > copy_cmd.src_ioas_id = new_ioas_id; > ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_COPY, &copy_cmd)); > - check_mock_iova(buffer, MOCK_APERTURE_START, BUFFER_SIZE); > + check_mock_iova(buf, MOCK_APERTURE_START, BUFFER_SIZE); > > test_cmd_destroy_access_pages( > access_cmd.id, access_cmd.access_pages.out_access_pages_id); > diff --git a/tools/testing/selftests/iommu/iommufd_fail_nth.c b/tools/testing/selftests/iommu/iommufd_fail_nth.c > index c5d5e69..2d7d016 100644 > --- a/tools/testing/selftests/iommu/iommufd_fail_nth.c > +++ b/tools/testing/selftests/iommu/iommufd_fail_nth.c > @@ -47,6 +47,9 @@ static __attribute__((constructor)) void setup_buffer(void) > > buffer = mmap(0, BUFFER_SIZE, PROT_READ | PROT_WRITE, > MAP_SHARED | MAP_ANONYMOUS, -1, 0); > + > + mfd_buffer = memfd_mmap(BUFFER_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, > + &mfd); > } > > /* > @@ -331,6 +334,42 @@ void __fail_nth_enable(struct __test_metadata *_metadata, > return 0; > } > > +/* iopt_area_fill_domains() and iopt_area_fill_domain() */ > +TEST_FAIL_NTH(basic_fail_nth, map_file_domain) > +{ > + uint32_t ioas_id; > + __u32 stdev_id; > + __u32 hwpt_id; > + __u64 iova; > + > + self->fd = open("/dev/iommu", O_RDWR); > + if (self->fd == -1) > + return -1; > + > + if (_test_ioctl_ioas_alloc(self->fd, &ioas_id)) > + return -1; > + > + if (_test_ioctl_set_temp_memory_limit(self->fd, 32)) > + return -1; > + > + fail_nth_enable(); > + > + if (_test_cmd_mock_domain(self->fd, ioas_id, &stdev_id, &hwpt_id, NULL)) > + return -1; > + > + if (_test_ioctl_ioas_map_file(self->fd, ioas_id, mfd, 0, 262144, &iova, > + IOMMU_IOAS_MAP_WRITEABLE | > + IOMMU_IOAS_MAP_READABLE)) > + return -1; > + > + if (_test_ioctl_destroy(self->fd, stdev_id)) > + return -1; > + > + if (_test_cmd_mock_domain(self->fd, ioas_id, &stdev_id, &hwpt_id, NULL)) > + return -1; > + return 0; > +} > + > TEST_FAIL_NTH(basic_fail_nth, map_two_domains) > { > uint32_t ioas_id; > diff --git a/tools/testing/selftests/iommu/iommufd_utils.h b/tools/testing/selftests/iommu/iommufd_utils.h > index 40f6f14..6a11c26 100644 > --- a/tools/testing/selftests/iommu/iommufd_utils.h > +++ b/tools/testing/selftests/iommu/iommufd_utils.h > @@ -40,12 +40,28 @@ 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 > @@ -589,6 +605,47 @@ 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 = {

10 months, 3 weeks

2
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[PATCH v4 00/14] iommufd: Add vIOMMU infrastructure (Part-2: vDEVICE)

by Nicolin Chen

Following the previous vIOMMU series, this adds another vDEVICE structure, representing the association from an iommufd_device to an iommufd_viommu. This gives the whole architecture a new "v" layer: _______________________________________________________________________ | iommufd (with vIOMMU/vDEVICE) | | _____________ _____________ | | | | | | | | |----------------| vIOMMU |<---| vDEVICE |<------| | | | | | |_____________| | | | | ______ | | _____________ ___|____ | | | | | | | | | | | | | | | IOAS |<---|(HWPT_PAGING)|<---| HWPT_NESTED |<--| DEVICE | | | | |______| |_____________| |_____________| |________| | |______|________|______________|__________________|_______________|_____| | | | | | ______v_____ | ______v_____ ______v_____ ___v__ | struct | | PFN | (paging) | | (nested) | |struct| |iommu_device| |------>|iommu_domain|<----|iommu_domain|<----|device| |____________| storage|____________| |____________| |______| This vDEVICE object is used to collect and store all vIOMMU-related device information/attributes in a VM. As an initial series for vDEVICE, add only the virt_id to the vDEVICE, which is a vIOMMU specific device ID in a VM: e.g. vSID of ARM SMMUv3, vDeviceID of AMD IOMMU, and vID of Intel VT-d to a Context Table. This virt_id helps IOMMU drivers to link the vID to a pID of the device against the physical IOMMU instance. This is essential for a vIOMMU-based invalidation, where the request contains a device's vID for a device cache flush, e.g. ATC invalidation. Therefore, with this vDEVICE object, support a vIOMMU-based invalidation, by reusing IOMMUFD_CMD_HWPT_INVALIDATE for a vIOMMU object to flush cache with a given driver data. As for the implementation of the series, add driver support in ARM SMMUv3 for a real world use case. This series is on Github: https://github.com/nicolinc/iommufd/commits/iommufd_viommu_p2-v4 For testing, try this "with-rmr" branch: https://github.com/nicolinc/iommufd/commits/iommufd_viommu_p2-v4-with-rmr Paring QEMU branch for testing: https://github.com/nicolinc/qemu/commits/wip/for_iommufd_viommu_p2-v4 Changelog v4 * Added missing brackets in switch-case * Fixed the unreleased idev refcount issue * Reworked the iommufd_vdevice_alloc allocator * Dropped support for IOMMU_VIOMMU_TYPE_DEFAULT * Added missing TEST_LENGTH and fail_nth coverages * Added a verification to the driver-allocated vDEVICE object * Added an iommufd_vdevice_abort for a missing mutex protection * Added a u64 structure arm_vsmmu_invalidation_cmd for user command conversion v3 https://lore.kernel.org/all/cover.1728491532.git.nicolinc@nvidia.com/ * Added Jason's Reviewed-by * Split this invalidation part out of the part-1 series * Repurposed VDEV_ID ioctl to a wider vDEVICE structure and ioctl * Reduced viommu_api functions by allowing drivers to access viommu and vdevice structure directly * Dropped vdevs_rwsem by using xa_lock instead * Dropped arm_smmu_cache_invalidate_user v2 https://lore.kernel.org/all/cover.1724776335.git.nicolinc@nvidia.com/ * Limited vdev_id to one per idev * Added a rw_sem to protect the vdev_id list * Reworked driver-level APIs with proper lockings * Added a new viommu_api file for IOMMUFD_DRIVER config * Dropped useless iommu_dev point from the viommu structure * Added missing index numnbers to new types in the uAPI header * Dropped IOMMU_VIOMMU_INVALIDATE uAPI; Instead, reuse the HWPT one * Reworked mock_viommu_cache_invalidate() using the new iommu helper * Reordered details of set/unset_vdev_id handlers for proper lockings v1 https://lore.kernel.org/all/cover.1723061377.git.nicolinc@nvidia.com/ Thanks! Nicolin Jason Gunthorpe (2): iommu: Add iommu_copy_struct_from_full_user_array helper iommu/arm-smmu-v3: Allow ATS for IOMMU_DOMAIN_NESTED Nicolin Chen (12): iommufd/viommu: Introduce IOMMUFD_OBJ_VDEVICE and its related struct iommufd/viommu: Add IOMMU_VDEVICE_ALLOC ioctl iommufd/selftest: Add IOMMU_VDEVICE_ALLOC test coverage iommu/viommu: Add cache_invalidate to iommufd_viommu_ops iommufd/hw_pagetable: Enforce cache invalidation op on vIOMMU-based hwpt_nested iommufd: Allow hwpt_id to carry viommu_id for IOMMU_HWPT_INVALIDATE iommufd/viommu: Add vdev_to_dev helper iommufd/selftest: Add mock_viommu_cache_invalidate iommufd/selftest: Add IOMMU_TEST_OP_DEV_CHECK_CACHE test command iommufd/selftest: Add vIOMMU coverage for IOMMU_HWPT_INVALIDATE ioctl Documentation: userspace-api: iommufd: Update vDEVICE iommu/arm-smmu-v3: Add arm_vsmmu_cache_invalidate drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 9 +- drivers/iommu/iommufd/iommufd_private.h | 12 ++ drivers/iommu/iommufd/iommufd_test.h | 30 +++ include/linux/iommu.h | 49 ++++- include/linux/iommufd.h | 50 +++++ include/uapi/linux/iommufd.h | 61 +++++- tools/testing/selftests/iommu/iommufd_utils.h | 83 +++++++ .../arm/arm-smmu-v3/arm-smmu-v3-iommufd.c | 162 +++++++++++++- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 32 ++- drivers/iommu/iommufd/device.c | 11 + drivers/iommu/iommufd/driver.c | 7 + drivers/iommu/iommufd/hw_pagetable.c | 36 +++- drivers/iommu/iommufd/main.c | 7 + drivers/iommu/iommufd/selftest.c | 115 +++++++++- drivers/iommu/iommufd/viommu.c | 108 ++++++++++ tools/testing/selftests/iommu/iommufd.c | 204 +++++++++++++++++- .../selftests/iommu/iommufd_fail_nth.c | 4 + Documentation/userspace-api/iommufd.rst | 41 +++- 18 files changed, 983 insertions(+), 38 deletions(-) -- 2.43.0

10 months, 3 weeks

4
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kselftest/next build: 5 builds: 2 failed, 3 passed, 1 warning (v6.12-rc3-6-g2a027d6bb6600)

by kernelci.org bot

kselftest/next build: 5 builds: 2 failed, 3 passed, 1 warning (v6.12-rc3-6-g2a027d6bb6600) Full Build Summary: https://kernelci.org/build/kselftest/branch/next/kernel/v6.12-rc3-6-g2a027d… Tree: kselftest Branch: next Git Describe: v6.12-rc3-6-g2a027d6bb6600 Git Commit: 2a027d6bb66002c8e50e974676f932b33c5fce10 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git Built: 3 unique architectures Build Failures Detected: arm64: defconfig+kselftest+arm64-chromebook: (clang-16) FAIL defconfig+kselftest+arm64-chromebook: (gcc-12) FAIL Warnings Detected: arm64: arm: i386: x86_64: x86_64_defconfig+kselftest (clang-16): 1 warning Warnings summary: 1 vmlinux.o: warning: objtool: set_ftrace_ops_ro+0x23: relocation to !ENDBR: .text+0x14fd19 ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- defconfig+kselftest (arm64, gcc-12) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig+kselftest+arm64-chromebook (arm64, gcc-12) — FAIL, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig+kselftest+arm64-chromebook (arm64, clang-16) — FAIL, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig+kselftest (i386, gcc-12) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v7_defconfig+kselftest (arm, gcc-12) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig+kselftest (x86_64, gcc-12) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig+kselftest (x86_64, clang-16) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: vmlinux.o: warning: objtool: set_ftrace_ops_ro+0x23: relocation to !ENDBR: .text+0x14fd19 --- For more info write to <info(a)kernelci.org>

10 months, 3 weeks

1
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[PATCH v4 0/4] introduce PIDFD_SELF* sentinels

by Lorenzo Stoakes

If you wish to utilise a pidfd interface to refer to the current process or thread it is rather cumbersome, requiring something like: int pidfd = pidfd_open(getpid(), 0 or PIDFD_THREAD); ... close(pidfd); Or the equivalent call opening /proc/self. It is more convenient to use a sentinel value to indicate to an interface that accepts a pidfd that we simply wish to refer to the current process thread. This series introduces sentinels for this purposes which can be passed as the pidfd in this instance rather than having to establish a dummy fd for this purpose. It is useful to refer to both the current thread from the userland's perspective for which we use PIDFD_SELF, and the current process from the userland's perspective, for which we use PIDFD_SELF_PROCESS. There is unfortunately some confusion between the kernel and userland as to what constitutes a process - a thread from the userland perspective is a process in userland, and a userland process is a thread group (more specifically the thread group leader from the kernel perspective). We therefore alias things thusly: * PIDFD_SELF_THREAD aliased by PIDFD_SELF - use PIDTYPE_PID. * PIDFD_SELF_THREAD_GROUP alised by PIDFD_SELF_PROCESS - use PIDTYPE_TGID. In all of the kernel code we refer to PIDFD_SELF_THREAD and PIDFD_SELF_THREAD_GROUP. However we expect users to use PIDFD_SELF and PIDFD_SELF_PROCESS. This matters for cases where, for instance, a user unshare()'s FDs or does thread-specific signal handling and where the user would be hugely confused if the FDs referenced or signal processed referred to the thread group leader rather than the individual thread. We ensure that pidfd_send_signal() and pidfd_getfd() work correctly, and assert as much in selftests. All other interfaces except setns() will work implicitly with this new interface, however it doesn't make sense to test waitid(P_PIDFD, ...) as waiting on ourselves is a blocking operation. In the case of setns() we explicitly disallow use of PIDFD_SELF* as it doesn't make sense to obtain the namespaces of our own process, and it would require work to implement this functionality there that would be of no use. We also do not provide the ability to utilise PIDFD_SELF* in ordinary fd operations such as open() or poll(), as this would require extensive work and be of no real use. v4: * Avoid returning an fd in the __pidfd_get_pid() function as pointed out by Christian, instead simply always pin the pid and maintain fd scope in the helper alone. * Add wrapper header file in tools/include/linux to allow for import of UAPI pidfd.h header without encountering the collision between system fcntl.h and linux/fcntl.h as discussed with Shuah and John. * Fixup tests to import the UAPI pidfd.h header working around conflicts between system fcntl.h and linux/fcntl.h which the UAPI pidfd.h imports, as reported by Shuah. * Use an int for pidfd_is_self_sentinel() to avoid any dependency on stdbool.h in userland. v3: * Do not fput() an invalid fd as reported by kernel test bot. * Fix unintended churn from moving variable declaration. https://lore.kernel.org/linux-mm/cover.1729073310.git.lorenzo.stoakes@oracl… v2: * Fix tests as reported by Shuah. * Correct RFC version lore link. https://lore.kernel.org/linux-mm/cover.1728643714.git.lorenzo.stoakes@oracl… Non-RFC v1: * Removed RFC tag - there seems to be general consensus that this change is a good idea, but perhaps some debate to be had on implementation. It seems sensible then to move forward with the RFC flag removed. * Introduced PIDFD_SELF_THREAD, PIDFD_SELF_THREAD_GROUP and their aliases PIDFD_SELF and PIDFD_SELF_PROCESS respectively. * Updated testing accordingly. https://lore.kernel.org/linux-mm/cover.1728578231.git.lorenzo.stoakes@oracl… RFC version: https://lore.kernel.org/linux-mm/cover.1727644404.git.lorenzo.stoakes@oracl… Lorenzo Stoakes (4): pidfd: extend pidfd_get_pid() and de-duplicate pid lookup pidfd: add PIDFD_SELF_* sentinels to refer to own thread/process selftests: pidfd: add pidfd.h UAPI wrapper selftests: pidfd: add tests for PIDFD_SELF_* include/linux/pid.h | 34 ++++- include/uapi/linux/pidfd.h | 15 ++ kernel/exit.c | 3 +- kernel/nsproxy.c | 1 + kernel/pid.c | 65 +++++--- kernel/signal.c | 29 +--- tools/include/linux/pidfd.h | 14 ++ tools/testing/selftests/pidfd/Makefile | 3 +- tools/testing/selftests/pidfd/pidfd.h | 2 + .../selftests/pidfd/pidfd_getfd_test.c | 141 ++++++++++++++++++ .../selftests/pidfd/pidfd_setns_test.c | 11 ++ tools/testing/selftests/pidfd/pidfd_test.c | 76 ++++++++-- 12 files changed, 333 insertions(+), 61 deletions(-) create mode 100644 tools/include/linux/pidfd.h -- 2.46.2

10 months, 3 weeks

5
17
0 0

[PATCH] selftests: Add kselftest framework to the testfile

by Shivam Chaudhary

This patch updates the existing test that checks for `open(O_TMPFILE)` and `linkat()` behaviors in mount namespaces to use the kselftest framework. This includes the following changes: - Replaced direct error handling with `ksft_test_result_*` macros for better reporting of test outcomes. - Added `ksft_print_header()` and `ksft_set_plan()` to structure test outputs more effectively. - Introduced the helper function `is_unshare()` to handle unshare-related checks. - Improved the test flow by adding more detailed pass/fail reporting for unshare, mounting, file opening, and linking operations. - Skips the test if it's not run as root, providing an appropriate Warning. Test logs: Before change: - Withou root error: unshare, errno 1 - With root No, output After change: - Without root TAP version 13 1..1 ok 1 # SKIP This test needs root to ru - With root TAP version 13 1..1 ok 1 unshare(): we have a new mount namespace. 1..2 ok 2 mount(): Root filesystem private mount: Success 1..3 ok 3 mount(): Mounting tmpfs on /tmp: Success 1..4 ok 4 openat(): Open first temporary file: Success 1..5 ok 5 linkat(): Linking the temporary file: Success 1..6 ok 6 openat(): Opening the second temporary file: Success # Totals: pass:6 fail:0 xfail:0 xpass:0 skip:0 error:0 Signed-off-by: Shivam Chaudhary <cvam0000(a)gmail.com> --- .../selftests/tmpfs/bug-link-o-tmpfile.c | 72 +++++++++++++++---- 1 file changed, 58 insertions(+), 14 deletions(-) diff --git a/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c b/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c index b5c3ddb90942..26dea19c1614 100644 --- a/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c +++ b/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c @@ -23,45 +23,89 @@ #include <sys/mount.h> #include <unistd.h> -int main(void) -{ - int fd; +#include "../kselftest.h" - if (unshare(CLONE_NEWNS) == -1) { +static int is_unshare(int flag) +{ + if (unshare(flag) == -1) { if (errno == ENOSYS || errno == EPERM) { - fprintf(stderr, "error: unshare, errno %d\n", errno); - return 4; + ksft_test_result_fail("error: unshare, errno %d\n", errno); + return -1; // Return -1 for failure } fprintf(stderr, "error: unshare, errno %d\n", errno); + return -1; + } + + return 0; // Return 0 for success +} + +int main(void) +{ + int fd; + + // Setting up kselftest framework + ksft_print_header(); + ksft_set_plan(1); + + // Check if test is run as root + if (geteuid()) { + ksft_test_result_skip("This test needs root to run!\n"); return 1; } - if (mount(NULL, "/", NULL, MS_PRIVATE|MS_REC, NULL) == -1) { - fprintf(stderr, "error: mount '/', errno %d\n", errno); + + if (is_unshare(CLONE_NEWNS) == 0) { + ksft_test_result_pass("unshare(): we have a new mount namespace.\n"); + } else { + ksft_test_result_fail("unshare(): failed\n"); return 1; } + ksft_set_plan(2); + + if (mount(NULL, "/", NULL, MS_PRIVATE | MS_REC, NULL) == -1) { + ksft_test_result_fail("mount(): Root filesystem private mount: Fail %d\n", errno); + return 1; + } else { + ksft_test_result_pass("mount(): Root filesystem private mount: Success\n"); + } + + ksft_set_plan(3); /* Our heroes: 1 root inode, 1 O_TMPFILE inode, 1 permanent inode. */ if (mount(NULL, "/tmp", "tmpfs", 0, "nr_inodes=3") == -1) { - fprintf(stderr, "error: mount tmpfs, errno %d\n", errno); + ksft_test_result_fail("mount(): Mounting tmpfs on /tmp: Fail %d\n", errno); return 1; + } else { + ksft_test_result_pass("mount(): Mounting tmpfs on /tmp: Success\n"); } - fd = openat(AT_FDCWD, "/tmp", O_WRONLY|O_TMPFILE, 0600); + ksft_set_plan(4); + fd = openat(AT_FDCWD, "/tmp", O_WRONLY | O_TMPFILE, 0600); if (fd == -1) { - fprintf(stderr, "error: open 1, errno %d\n", errno); + ksft_test_result_fail("openat(): Open first temporary file: Fail %d\n", errno); return 1; + } else { + ksft_test_result_pass("openat(): Open first temporary file: Success\n"); } + + ksft_set_plan(5); if (linkat(fd, "", AT_FDCWD, "/tmp/1", AT_EMPTY_PATH) == -1) { - fprintf(stderr, "error: linkat, errno %d\n", errno); + ksft_test_result_fail("linkat(): Linking the temporary file: Fail %d\n", errno); + close(fd); // Ensure fd is closed on failure return 1; + } else { + ksft_test_result_pass("linkat(): Linking the temporary file: Success\n"); } close(fd); - fd = openat(AT_FDCWD, "/tmp", O_WRONLY|O_TMPFILE, 0600); + ksft_set_plan(6); + fd = openat(AT_FDCWD, "/tmp", O_WRONLY | O_TMPFILE, 0600); if (fd == -1) { - fprintf(stderr, "error: open 2, errno %d\n", errno); + ksft_test_result_fail("openat(): Opening the second temporary file: Fail %d\n", errno); return 1; + } else { + ksft_test_result_pass("openat(): Opening the second temporary file: Success\n"); } + ksft_exit_pass(); return 0; } -- 2.34.1

10 months, 3 weeks

2
2
0 0

[PATCH] lib/math: Add int_sqrt test suite

by Luis Felipe Hernandez

Adds test suite for integer based square root function. The test suite is designed to verify the correctness of the int_sqrt math library function. Signed-off-by: Luis Felipe Hernandez <luis.hernandez093(a)gmail.com> --- lib/Kconfig.debug | 17 ++++++++++++ lib/math/Makefile | 1 + lib/math/tests/Makefile | 1 + lib/math/tests/int_sqrt_kunit.c | 48 +++++++++++++++++++++++++++++++++ 4 files changed, 67 insertions(+) create mode 100644 lib/math/tests/int_sqrt_kunit.c diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 7312ae7c3cc5..a7e63dae9281 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2993,6 +2993,23 @@ config TEST_OBJPOOL If unsure, say N. +config INT_SQRT_KUNIT_TEST + tristate "Integer square root test test" if !KUNIT_ALL_TESTS + depends on KUNIT + default KUNIT_ALL_TESTS + help + This option enables the KUnit test suite for the int_sqrt function, + which performs square root calculation. The test suite is designed to + verify that the implementation of int_sqrt correctly computes the + square root of a number. + + Enabling this option will include tests that check various scenarios + and edge cases to ensure the accuracy and reliability of the square root + function. + + If unsure, say N + + endif # RUNTIME_TESTING_MENU config ARCH_USE_MEMTEST diff --git a/lib/math/Makefile b/lib/math/Makefile index 3ef11305f8d2..c7b043ffb249 100644 --- a/lib/math/Makefile +++ b/lib/math/Makefile @@ -9,3 +9,4 @@ obj-$(CONFIG_INT_POW_TEST) += tests/int_pow_kunit.o obj-$(CONFIG_TEST_DIV64) += test_div64.o obj-$(CONFIG_TEST_MULDIV64) += test_mul_u64_u64_div_u64.o obj-$(CONFIG_RATIONAL_KUNIT_TEST) += rational-test.o +obj-y += tests/ \ No newline at end of file diff --git a/lib/math/tests/Makefile b/lib/math/tests/Makefile index 6a169123320a..e1a79f093b2d 100644 --- a/lib/math/tests/Makefile +++ b/lib/math/tests/Makefile @@ -1,3 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_INT_POW_TEST) += int_pow_kunit.o +obj-$(CONFIG_INT_SQRT_KUNIT_TEST) += int_sqrt_kunit.o diff --git a/lib/math/tests/int_sqrt_kunit.c b/lib/math/tests/int_sqrt_kunit.c new file mode 100644 index 000000000000..9935f52e808f --- /dev/null +++ b/lib/math/tests/int_sqrt_kunit.c @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include <kunit/test.h> +#include <linux/math.h> + +struct test_case_params { + unsigned long x; + unsigned long expected_result; + const char *name; +}; + +static const struct test_case_params params[] = { + { 0, 0, "edge-case: square root of 0" }, + { 4, 2, "perfect square: square root of 4" }, + { 81, 9, "perfect square: square root of 9" }, + { 2, 1, "non-perfect square: square root of 2" }, + { 5, 2, "non-perfect square: square root of 5"}, + { ULONG_MAX, 4294967295, "large input"}, +}; + +static void get_desc(const struct test_case_params *tc, char *desc) +{ + strscpy(desc, tc->name, KUNIT_PARAM_DESC_SIZE); +} + +KUNIT_ARRAY_PARAM(int_sqrt, params, get_desc); + +static void int_sqrt_test(struct kunit *test) +{ + const struct test_case_params *tc = (const struct test_case_params *)test->param_value; + + KUNIT_EXPECT_EQ(test, tc->expected_result, int_sqrt(tc->x)); +} + +static struct kunit_case math_int_sqrt_test_cases[] = { + KUNIT_CASE_PARAM(int_sqrt_test, int_sqrt_gen_params), + {} +}; + +static struct kunit_suite int_sqrt_test_suite = { + .name = "math-int_sqrt", + .test_cases = math_int_sqrt_test_cases, +}; + +kunit_test_suites(&int_sqrt_test_suite); + +MODULE_DESCRIPTION("math.int_sqrt KUnit test suite"); +MODULE_LICENSE("GPL"); -- 2.47.0

10 months, 3 weeks

2
1
0 0

[PATCH v5 00/10] riscv: Userspace pointer masking and tagged address ABI

by Samuel Holland

RISC-V defines three extensions for pointer masking[1]: - Smmpm: configured in M-mode, affects M-mode - Smnpm: configured in M-mode, affects the next lower mode (S or U-mode) - Ssnpm: configured in S-mode, affects the next lower mode (VS, VU, or U-mode) This series adds support for configuring Smnpm or Ssnpm (depending on which privilege mode the kernel is running in) to allow pointer masking in userspace (VU or U-mode), extending the PR_SET_TAGGED_ADDR_CTRL API from arm64. Unlike arm64 TBI, userspace pointer masking is not enabled by default on RISC-V. Additionally, the tag width (referred to as PMLEN) is variable, so userspace needs to ask the kernel for a specific tag width, which is interpreted as a lower bound on the number of tag bits. This series also adds support for a tagged address ABI similar to arm64 and x86. Since accesses from the kernel to user memory use the kernel's pointer masking configuration, not the user's, the kernel must untag user pointers in software before dereferencing them. And since the tag width is variable, as with LAM on x86, it must be kept the same across all threads in a process so untagged_addr_remote() can work. [1]: https://github.com/riscv/riscv-j-extension/raw/d70011dde6c2/zjpm-spec.pdf --- This series depends on the per-thread envcfg series in riscv/for-next. This series can be tested in QEMU by applying a patch set[2]. KASAN_SW_TAGS using pointer masking is an independent patch series[3]. [2]: https://lore.kernel.org/qemu-devel/20240511101053.1875596-1-me@deliversmonk… [3]: https://lore.kernel.org/linux-riscv/20240814085618.968833-1-samuel.holland@… Changes in v5: - Update pointer masking spec version to 1.0 and state to ratified - Document how PR_[SG]ET_TAGGED_ADDR_CTRL are used on RISC-V - Document that the RISC-V tagged address ABI is the same as AArch64 - Rename "pm" selftests directory to "abi" to be more generic - Fix -Wparentheses warnings - Fix order of operations when writing via the tagged pointer - Update pointer masking spec version to 1.0 in hwprobe documentation Changes in v4: - Switch IS_ENABLED back to #ifdef to fix riscv32 build - Combine __untagged_addr() and __untagged_addr_remote() Changes in v3: - Note in the commit message that the ISA extension spec is frozen - Rebase on riscv/for-next (ISA extension list conflicts) - Remove RISCV_ISA_EXT_SxPM, which was not used anywhere - Use shifts instead of large numbers in ENVCFG_PMM* macro definitions - Rename CONFIG_RISCV_ISA_POINTER_MASKING to CONFIG_RISCV_ISA_SUPM, since it only controls the userspace part of pointer masking - Use IS_ENABLED instead of #ifdef when possible - Use an enum for the supported PMLEN values - Simplify the logic in set_tagged_addr_ctrl() - Use IS_ENABLED instead of #ifdef when possible - Implement mm_untag_mask() - Remove pmlen from struct thread_info (now only in mm_context_t) Changes in v2: - Drop patch 4 ("riscv: Define is_compat_thread()"), as an equivalent patch was already applied - Move patch 5 ("riscv: Split per-CPU and per-thread envcfg bits") to a different series[3] - Update pointer masking specification version reference - Provide macros for the extension affecting the kernel and userspace - Use the correct name for the hstatus.HUPMM field - Rebase on riscv/linux.git for-next - Add and use the envcfg_update_bits() helper function - Inline flush_tagged_addr_state() - Implement untagged_addr_remote() - Restrict PMLEN changes once a process is multithreaded - Rename "tags" directory to "pm" to avoid .gitignore rules - Add .gitignore file to ignore the compiled selftest binary - Write to a pipe to force dereferencing the user pointer - Handle SIGSEGV in the child process to reduce dmesg noise - Export Supm via hwprobe - Export Smnpm and Ssnpm to KVM guests Samuel Holland (10): dt-bindings: riscv: Add pointer masking ISA extensions riscv: Add ISA extension parsing for pointer masking riscv: Add CSR definitions for pointer masking riscv: Add support for userspace pointer masking riscv: Add support for the tagged address ABI riscv: Allow ptrace control of the tagged address ABI riscv: selftests: Add a pointer masking test riscv: hwprobe: Export the Supm ISA extension RISC-V: KVM: Allow Smnpm and Ssnpm extensions for guests KVM: riscv: selftests: Add Smnpm and Ssnpm to get-reg-list test Documentation/arch/riscv/hwprobe.rst | 3 + Documentation/arch/riscv/uabi.rst | 16 + .../devicetree/bindings/riscv/extensions.yaml | 18 + arch/riscv/Kconfig | 11 + arch/riscv/include/asm/csr.h | 16 + arch/riscv/include/asm/hwcap.h | 5 + arch/riscv/include/asm/mmu.h | 7 + arch/riscv/include/asm/mmu_context.h | 13 + arch/riscv/include/asm/processor.h | 8 + arch/riscv/include/asm/switch_to.h | 11 + arch/riscv/include/asm/uaccess.h | 43 ++- arch/riscv/include/uapi/asm/hwprobe.h | 1 + arch/riscv/include/uapi/asm/kvm.h | 2 + arch/riscv/kernel/cpufeature.c | 3 + arch/riscv/kernel/process.c | 154 ++++++++ arch/riscv/kernel/ptrace.c | 42 +++ arch/riscv/kernel/sys_hwprobe.c | 3 + arch/riscv/kvm/vcpu_onereg.c | 4 + include/uapi/linux/elf.h | 1 + include/uapi/linux/prctl.h | 5 +- .../selftests/kvm/riscv/get-reg-list.c | 8 + tools/testing/selftests/riscv/Makefile | 2 +- tools/testing/selftests/riscv/abi/.gitignore | 1 + tools/testing/selftests/riscv/abi/Makefile | 10 + .../selftests/riscv/abi/pointer_masking.c | 332 ++++++++++++++++++ 25 files changed, 712 insertions(+), 7 deletions(-) create mode 100644 tools/testing/selftests/riscv/abi/.gitignore create mode 100644 tools/testing/selftests/riscv/abi/Makefile create mode 100644 tools/testing/selftests/riscv/abi/pointer_masking.c -- 2.45.1

10 months, 3 weeks

3
12
0 0

[PATCH RFC 0/3] Verify bias functionality for pinctrl_paris driver through new gpio test

by Nícolas F. R. A. Prado

This series was motivated by the regression fixed by 166bf8af9122 ("pinctrl: mediatek: common-v2: Fix broken bias-disable for PULL_PU_PD_RSEL_TYPE"). A bug was introduced in the pinctrl_paris driver which prevented certain pins from having their bias configured. Running this test on the mt8195-tomato platform with the test plan included below[1] shows the test passing with the fix applied, but failing without the fix: With fix: $ ./gpio-setget-config.py TAP version 13 # Using test plan file: ./google,tomato.yaml 1..3 ok 1 pinctrl_paris.34.pull-up ok 2 pinctrl_paris.34.pull-down ok 3 pinctrl_paris.34.disabled # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0 Without fix: $ ./gpio-setget-config.py TAP version 13 # Using test plan file: ./google,tomato.yaml 1..3 # Bias doesn't match: Expected pull-up, read pull-down. not ok 1 pinctrl_paris.34.pull-up ok 2 pinctrl_paris.34.pull-down # Bias doesn't match: Expected disabled, read pull-down. not ok 3 pinctrl_paris.34.disabled # Totals: pass:1 fail:2 xfail:0 xpass:0 skip:0 error:0 In order to achieve this, the first patch exposes bias configuration through the GPIO API in the pinctrl_paris driver, patch 2 extends the gpio-mockup-cdev utility for use by patch 3, and patch 3 introduces a new GPIO kselftest that takes a test plan in YAML, which can be tailored per-platform to specify the configurations to test, and sets and gets back each pin configuration to verify that they match and thus that the driver is behaving as expected. Since the GPIO uAPI only allows setting the pin configuration, getting it back is done through pinconf-pins in the pinctrl debugfs folder. The test currently only verifies bias but it would be easy to extend to verify other pin configurations. The test plan YAML file can be customized for each use-case and is platform-dependant. For that reason, only an example is included in patch 3 and the user is supposed to provide their test plan. That said, the aim is to collect test plans for ease of use at [2]. [1] This is the test plan used for mt8195-tomato: - label: "pinctrl_paris" tests: # Pin 34 has type MTK_PULL_PU_PD_RSEL_TYPE and is unused. # Setting bias to MTK_PULL_PU_PD_RSEL_TYPE pins was fixed by # 166bf8af9122 ("pinctrl: mediatek: common-v2: Fix broken bias-disable for PULL_PU_PD_RSEL_TYPE") - pin: 34 bias: "pull-up" - pin: 34 bias: "pull-down" - pin: 34 bias: "disabled" [2] https://github.com/kernelci/platform-test-parameters Signed-off-by: Nícolas F. R. A. Prado <nfraprado(a)collabora.com> --- Nícolas F. R. A. Prado (3): pinctrl: mediatek: paris: Expose more configurations to GPIO set_config selftest: gpio: Add wait flag to gpio-mockup-cdev selftest: gpio: Add a new set-get config test drivers/pinctrl/mediatek/pinctrl-paris.c | 20 +-- tools/testing/selftests/gpio/Makefile | 2 +- tools/testing/selftests/gpio/gpio-mockup-cdev.c | 14 +- .../gpio-set-get-config-example-test-plan.yaml | 15 ++ .../testing/selftests/gpio/gpio-set-get-config.py | 183 +++++++++++++++++++++ 5 files changed, 220 insertions(+), 14 deletions(-) --- base-commit: 6a7917c89f219f09b1d88d09f376000914a52763 change-id: 20240906-kselftest-gpio-set-get-config-6e5bb670c1a5 Best regards, -- Nícolas F. R. A. Prado <nfraprado(a)collabora.com>

10 months, 3 weeks

2
6
0 0

[PATCH net-next v2 8/8] selftests: net: fdb_notify: Add a test for FDB notifications

by Petr Machata

Check that only one notification is produced for various FDB edit operations. Regarding the ip_link_add() and ip_link_master() helpers. This pattern of action plus corresponding defer is bound to come up often, and a dedicated vocabulary to capture it will be handy. tunnel_create() and vlan_create() from forwarding/lib.sh are somewhat opaque and perhaps too kitchen-sinky, so I tried to go in the opposite direction with these ones, and wrapped only the bare minimum to schedule a corresponding cleanup. Signed-off-by: Petr Machata <petrm(a)nvidia.com> Reviewed-by: Amit Cohen <amcohen(a)nvidia.com> Acked-by: Shuah Khan <skhan(a)linuxfoundation.org> --- Notes: CC: Shuah Khan <shuah(a)kernel.org> CC: Benjamin Poirier <bpoirier(a)nvidia.com> CC: Hangbin Liu <liuhangbin(a)gmail.com> CC: linux-kselftest(a)vger.kernel.org CC: Jiri Pirko <jiri(a)resnulli.us> --- tools/testing/selftests/net/Makefile | 2 +- tools/testing/selftests/net/fdb_notify.sh | 95 +++++++++++++++++++++++ tools/testing/selftests/net/lib.sh | 17 ++++ 3 files changed, 113 insertions(+), 1 deletion(-) create mode 100755 tools/testing/selftests/net/fdb_notify.sh diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile index 26a4883a65c9..ab0e8f30bfe7 100644 --- a/tools/testing/selftests/net/Makefile +++ b/tools/testing/selftests/net/Makefile @@ -92,7 +92,7 @@ TEST_PROGS += test_vxlan_mdb.sh TEST_PROGS += test_bridge_neigh_suppress.sh TEST_PROGS += test_vxlan_nolocalbypass.sh TEST_PROGS += test_bridge_backup_port.sh -TEST_PROGS += fdb_flush.sh +TEST_PROGS += fdb_flush.sh fdb_notify.sh TEST_PROGS += fq_band_pktlimit.sh TEST_PROGS += vlan_hw_filter.sh TEST_PROGS += bpf_offload.py diff --git a/tools/testing/selftests/net/fdb_notify.sh b/tools/testing/selftests/net/fdb_notify.sh new file mode 100755 index 000000000000..a98047361988 --- /dev/null +++ b/tools/testing/selftests/net/fdb_notify.sh @@ -0,0 +1,95 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +source lib.sh + +ALL_TESTS=" + test_dup_bridge + test_dup_vxlan_self + test_dup_vxlan_master + test_dup_macvlan_self + test_dup_macvlan_master +" + +do_test_dup() +{ + local op=$1; shift + local what=$1; shift + local tmpf + + RET=0 + + tmpf=$(mktemp) + defer rm "$tmpf" + + defer_scope_push + bridge monitor fdb &> "$tmpf" & + defer kill_process $! + + bridge fdb "$op" 00:11:22:33:44:55 vlan 1 "$@" + sleep 0.2 + defer_scope_pop + + local count=$(grep -c -e 00:11:22:33:44:55 $tmpf) + ((count == 1)) + check_err $? "Got $count notifications, expected 1" + + log_test "$what $op: Duplicate notifications" +} + +test_dup_bridge() +{ + ip_link_add br up type bridge vlan_filtering 1 + do_test_dup add "bridge" dev br self + do_test_dup del "bridge" dev br self +} + +test_dup_vxlan_self() +{ + ip_link_add br up type bridge vlan_filtering 1 + ip_link_add vx up type vxlan id 2000 dstport 4789 + ip_link_master vx br + + do_test_dup add "vxlan" dev vx self dst 192.0.2.1 + do_test_dup del "vxlan" dev vx self dst 192.0.2.1 +} + +test_dup_vxlan_master() +{ + ip_link_add br up type bridge vlan_filtering 1 + ip_link_add vx up type vxlan id 2000 dstport 4789 + ip_link_master vx br + + do_test_dup add "vxlan master" dev vx master + do_test_dup del "vxlan master" dev vx master +} + +test_dup_macvlan_self() +{ + ip_link_add dd up type dummy + ip_link_add mv up link dd type macvlan mode passthru + + do_test_dup add "macvlan self" dev mv self + do_test_dup del "macvlan self" dev mv self +} + +test_dup_macvlan_master() +{ + ip_link_add br up type bridge vlan_filtering 1 + ip_link_add dd up type dummy + ip_link_add mv up link dd type macvlan mode passthru + ip_link_master mv br + + do_test_dup add "macvlan master" dev mv self + do_test_dup del "macvlan master" dev mv self +} + +cleanup() +{ + defer_scopes_cleanup +} + +trap cleanup EXIT +tests_run + +exit $EXIT_STATUS diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh index 24f63e45735d..8994fec1c38f 100644 --- a/tools/testing/selftests/net/lib.sh +++ b/tools/testing/selftests/net/lib.sh @@ -442,3 +442,20 @@ kill_process() # Suppress noise from killing the process. { kill $pid && wait $pid; } 2>/dev/null } + +ip_link_add() +{ + local name=$1; shift + + ip link add name "$name" "$@" + defer ip link del dev "$name" +} + +ip_link_master() +{ + local member=$1; shift + local master=$1; shift + + ip link set dev "$member" master "$master" + defer ip link set dev "$member" nomaster +} -- 2.45.0

10 months, 3 weeks

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[PATCH net-next v2 7/8] selftests: net: lib: Add kill_process

by Petr Machata

A number of selftests run processes in the background and need to kill them afterwards. Instead for everyone to open-code the kill / wait / redirect mantra, add a helper in net/lib.sh. Convert existing open-code sites. Signed-off-by: Petr Machata <petrm(a)nvidia.com> Acked-by: Shuah Khan <skhan(a)linuxfoundation.org> --- Notes: CC: Shuah Khan <shuah(a)kernel.org> CC: Benjamin Poirier <bpoirier(a)nvidia.com> CC: Hangbin Liu <liuhangbin(a)gmail.com> CC: linux-kselftest(a)vger.kernel.org CC: Jiri Pirko <jiri(a)resnulli.us> CC: Andrew Lunn <andrew+netdev(a)lunn.ch> --- .../selftests/drivers/net/mlxsw/devlink_trap.sh | 2 +- .../drivers/net/mlxsw/devlink_trap_l3_drops.sh | 4 ++-- .../drivers/net/mlxsw/devlink_trap_l3_exceptions.sh | 12 ++++++------ .../drivers/net/mlxsw/devlink_trap_tunnel_ipip.sh | 4 ++-- .../drivers/net/mlxsw/devlink_trap_tunnel_ipip6.sh | 4 ++-- .../drivers/net/mlxsw/devlink_trap_tunnel_vxlan.sh | 4 ++-- .../net/mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh | 4 ++-- .../testing/selftests/drivers/net/mlxsw/tc_sample.sh | 4 ++-- .../drivers/net/netdevsim/fib_notifications.sh | 6 +++--- tools/testing/selftests/net/drop_monitor_tests.sh | 2 +- tools/testing/selftests/net/fib_tests.sh | 8 ++++---- .../testing/selftests/net/forwarding/devlink_lib.sh | 2 +- tools/testing/selftests/net/forwarding/lib.sh | 3 +-- tools/testing/selftests/net/forwarding/tc_police.sh | 8 ++++---- tools/testing/selftests/net/lib.sh | 8 ++++++++ 15 files changed, 41 insertions(+), 34 deletions(-) diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap.sh index 89b55e946eed..36055279ba92 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap.sh @@ -116,7 +116,7 @@ dev_del_test() log_test "Device delete" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid } trap cleanup EXIT diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh index 160891dcb4bc..db5806d189bb 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh @@ -595,7 +595,7 @@ irif_disabled_test() log_test "Ingress RIF disabled" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid ip link set dev $rp1 nomaster __addr_add_del $rp1 add 192.0.2.2/24 2001:db8:1::2/64 ip link del dev br0 type bridge @@ -645,7 +645,7 @@ erif_disabled_test() log_test "Egress RIF disabled" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid __addr_add_del $rp1 add 192.0.2.2/24 2001:db8:1::2/64 ip link del dev br0 type bridge devlink_trap_action_set $trap_name "drop" diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh index 190c1b6b5365..5d6d88b600f0 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh @@ -202,7 +202,7 @@ mtu_value_is_too_small_test() mtu_restore $rp2 - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid tc filter del dev $h1 ingress protocol ip pref 1 handle 101 flower } @@ -235,7 +235,7 @@ __ttl_value_is_too_small_test() log_test "TTL value is too small: TTL=$ttl_val" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid tc filter del dev $h1 ingress protocol ip pref 1 handle 101 flower } @@ -299,7 +299,7 @@ __mc_reverse_path_forwarding_test() log_test "Multicast reverse path forwarding: $desc" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid tc filter del dev $rp2 egress protocol $proto pref 1 handle 101 flower } @@ -347,7 +347,7 @@ __reject_route_test() log_test "Reject route: $desc" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid ip route del unreachable $unreachable tc filter del dev $h1 ingress protocol $proto pref 1 handle 101 flower } @@ -542,7 +542,7 @@ ipv4_lpm_miss_test() log_test "LPM miss: IPv4" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid vrf_without_routes_destroy } @@ -569,7 +569,7 @@ ipv6_lpm_miss_test() log_test "LPM miss: IPv6" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid vrf_without_routes_destroy } diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_ipip.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_ipip.sh index e9a82cae8c9a..4ac1dae92d0f 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_ipip.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_ipip.sh @@ -176,7 +176,7 @@ ecn_decap_test() log_test "$desc: Inner ECN is not ECT and outer is $ecn_desc" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid tc filter del dev $swp1 egress protocol ip pref 1 handle 101 flower } @@ -207,7 +207,7 @@ no_matching_tunnel_test() log_test "$desc" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid tc filter del dev $swp1 egress protocol ip pref 1 handle 101 flower } diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_ipip6.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_ipip6.sh index 878125041fc3..fce885184404 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_ipip6.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_ipip6.sh @@ -176,7 +176,7 @@ ecn_decap_test() log_test "$desc: Inner ECN is not ECT and outer is $ecn_desc" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid tc filter del dev $swp1 egress protocol ipv6 pref 1 handle 101 flower } @@ -207,7 +207,7 @@ no_matching_tunnel_test() log_test "$desc" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid tc filter del dev $swp1 egress protocol ipv6 pref 1 handle 101 flower } diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan.sh index 5f6eb965cfd1..7aca8e5922cf 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan.sh @@ -183,7 +183,7 @@ ecn_decap_test() log_test "$desc: Inner ECN is not ECT and outer is $ecn_desc" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid tc filter del dev $swp1 egress protocol ip pref 1 handle 101 flower } @@ -253,7 +253,7 @@ corrupted_packet_test() log_test "$desc" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid tc filter del dev $swp1 egress protocol ip pref 1 handle 101 flower } diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh index f6c16cbb6cf7..4599c331240b 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh @@ -188,7 +188,7 @@ ecn_decap_test() log_test "$desc: Inner ECN is not ECT and outer is $ecn_desc" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid tc filter del dev $swp1 egress protocol ipv6 pref 1 handle 101 flower } @@ -262,7 +262,7 @@ corrupted_packet_test() log_test "$desc" - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid tc filter del dev $swp1 egress protocol ipv6 pref 1 handle 101 flower } diff --git a/tools/testing/selftests/drivers/net/mlxsw/tc_sample.sh b/tools/testing/selftests/drivers/net/mlxsw/tc_sample.sh index 83a0210e7544..bc7ea2df49fb 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/tc_sample.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/tc_sample.sh @@ -218,7 +218,7 @@ psample_capture_start() psample_capture_stop() { - { kill %% && wait %%; } 2>/dev/null + kill_process %% } __tc_sample_rate_test() @@ -499,7 +499,7 @@ tc_sample_md_out_tc_occ_test() backlog=$(tc -j -p -s qdisc show dev $rp2 | jq '.[0]["backlog"]') # Kill mausezahn. - { kill %% && wait %%; } 2>/dev/null + kill_process %% psample_capture_stop diff --git a/tools/testing/selftests/drivers/net/netdevsim/fib_notifications.sh b/tools/testing/selftests/drivers/net/netdevsim/fib_notifications.sh index 8d91191a098c..9896580c3d85 100755 --- a/tools/testing/selftests/drivers/net/netdevsim/fib_notifications.sh +++ b/tools/testing/selftests/drivers/net/netdevsim/fib_notifications.sh @@ -94,7 +94,7 @@ route_addition_check() sleep 1 $IP route add $route dev dummy1 sleep 1 - kill %% && wait %% &> /dev/null + kill_process %% route_notify_check $outfile $expected_num_notifications $offload_failed rm -f $outfile @@ -148,7 +148,7 @@ route_deletion_check() sleep 1 $IP route del $route dev dummy1 sleep 1 - kill %% && wait %% &> /dev/null + kill_process %% route_notify_check $outfile $expected_num_notifications rm -f $outfile @@ -191,7 +191,7 @@ route_replacement_check() sleep 1 $IP route replace $route dev dummy2 sleep 1 - kill %% && wait %% &> /dev/null + kill_process %% route_notify_check $outfile $expected_num_notifications rm -f $outfile diff --git a/tools/testing/selftests/net/drop_monitor_tests.sh b/tools/testing/selftests/net/drop_monitor_tests.sh index 7c4818c971fc..507d0a82f5f0 100755 --- a/tools/testing/selftests/net/drop_monitor_tests.sh +++ b/tools/testing/selftests/net/drop_monitor_tests.sh @@ -77,7 +77,7 @@ sw_drops_test() rm ${dir}/packets.pcap - { kill %% && wait %%; } 2>/dev/null + kill_process %% timeout 5 dwdump -o sw -w ${dir}/packets.pcap (( $(tshark -r ${dir}/packets.pcap \ -Y 'ip.dst == 192.0.2.10' 2> /dev/null | wc -l) == 0)) diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh index 5f3c28fc8624..3ea6f886a210 100755 --- a/tools/testing/selftests/net/fib_tests.sh +++ b/tools/testing/selftests/net/fib_tests.sh @@ -689,7 +689,7 @@ fib6_notify_test() log_test $ret 0 "ipv6 route add notify" - { kill %% && wait %%; } 2>/dev/null + kill_process %% #rm errors.txt @@ -736,7 +736,7 @@ fib_notify_test() log_test $ret 0 "ipv4 route add notify" - { kill %% && wait %%; } 2>/dev/null + kill_process %% rm errors.txt @@ -2328,7 +2328,7 @@ ipv4_mangle_test() $IP route del table 123 172.16.101.0/24 dev veth1 $IP rule del pref 100 - { kill %% && wait %%; } 2>/dev/null + kill_process %% rm $tmp_file route_cleanup @@ -2386,7 +2386,7 @@ ipv6_mangle_test() $IP -6 route del table 123 2001:db8:101::/64 dev veth1 $IP -6 rule del pref 100 - { kill %% && wait %%; } 2>/dev/null + kill_process %% rm $tmp_file route_cleanup diff --git a/tools/testing/selftests/net/forwarding/devlink_lib.sh b/tools/testing/selftests/net/forwarding/devlink_lib.sh index 62a05bca1e82..18afa89ebbcc 100644 --- a/tools/testing/selftests/net/forwarding/devlink_lib.sh +++ b/tools/testing/selftests/net/forwarding/devlink_lib.sh @@ -501,7 +501,7 @@ devlink_trap_drop_cleanup() local pref=$1; shift local handle=$1; shift - kill $mz_pid && wait $mz_pid &> /dev/null + kill_process $mz_pid tc filter del dev $dev egress protocol $proto pref $pref handle $handle flower } diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh index 8625e3c99f55..7337f398f9cc 100644 --- a/tools/testing/selftests/net/forwarding/lib.sh +++ b/tools/testing/selftests/net/forwarding/lib.sh @@ -1574,8 +1574,7 @@ stop_traffic() { local pid=${1-%%}; shift - # Suppress noise from killing mausezahn. - { kill $pid && wait $pid; } 2>/dev/null + kill_process "$pid" } declare -A cappid diff --git a/tools/testing/selftests/net/forwarding/tc_police.sh b/tools/testing/selftests/net/forwarding/tc_police.sh index 5103f64a71d6..509fdedfcfa1 100755 --- a/tools/testing/selftests/net/forwarding/tc_police.sh +++ b/tools/testing/selftests/net/forwarding/tc_police.sh @@ -148,7 +148,7 @@ police_common_test() log_test "$test_name" - { kill %% && wait %%; } 2>/dev/null + kill_process %% tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower } @@ -198,7 +198,7 @@ police_shared_common_test() log_test "$test_name" - { kill %% && wait %%; } 2>/dev/null + kill_process %% } police_shared_test() @@ -278,7 +278,7 @@ police_mirror_common_test() log_test "$test_name" - { kill %% && wait %%; } 2>/dev/null + kill_process %% tc filter del dev $pol_if $dir protocol ip pref 1 handle 101 flower tc filter del dev $h3 ingress protocol ip pref 1 handle 101 flower tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower @@ -320,7 +320,7 @@ police_pps_common_test() log_test "$test_name" - { kill %% && wait %%; } 2>/dev/null + kill_process %% tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower } diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh index 6bcf5d13879d..24f63e45735d 100644 --- a/tools/testing/selftests/net/lib.sh +++ b/tools/testing/selftests/net/lib.sh @@ -434,3 +434,11 @@ xfail_on_veth() "$@" fi } + +kill_process() +{ + local pid=$1; shift + + # Suppress noise from killing the process. + { kill $pid && wait $pid; } 2>/dev/null +} -- 2.45.0

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