diff options
Diffstat (limited to 'tools/testing/selftests/kvm/include/test_util.h')
-rw-r--r-- | tools/testing/selftests/kvm/include/test_util.h | 115 |
1 files changed, 114 insertions, 1 deletions
diff --git a/tools/testing/selftests/kvm/include/test_util.h b/tools/testing/selftests/kvm/include/test_util.h index a41db6fb7e24..befc754ce9b3 100644 --- a/tools/testing/selftests/kvm/include/test_util.h +++ b/tools/testing/selftests/kvm/include/test_util.h @@ -17,14 +17,38 @@ #include <errno.h> #include <unistd.h> #include <fcntl.h> +#include <sys/mman.h> #include "kselftest.h" +static inline int _no_printf(const char *format, ...) { return 0; } + +#ifdef DEBUG +#define pr_debug(...) printf(__VA_ARGS__) +#else +#define pr_debug(...) _no_printf(__VA_ARGS__) +#endif +#ifndef QUIET +#define pr_info(...) printf(__VA_ARGS__) +#else +#define pr_info(...) _no_printf(__VA_ARGS__) +#endif + +void print_skip(const char *fmt, ...) __attribute__((format(printf, 1, 2))); +#define __TEST_REQUIRE(f, fmt, ...) \ +do { \ + if (!(f)) \ + ksft_exit_skip("- " fmt "\n", ##__VA_ARGS__); \ +} while (0) + +#define TEST_REQUIRE(f) __TEST_REQUIRE(f, "Requirement not met: %s", #f) + ssize_t test_write(int fd, const void *buf, size_t count); ssize_t test_read(int fd, void *buf, size_t count); int test_seq_read(const char *path, char **bufp, size_t *sizep); void test_assert(bool exp, const char *exp_str, - const char *file, unsigned int line, const char *fmt, ...); + const char *file, unsigned int line, const char *fmt, ...) + __attribute__((format(printf, 5, 6))); #define TEST_ASSERT(e, fmt, ...) \ test_assert((e), #e, __FILE__, __LINE__, fmt, ##__VA_ARGS__) @@ -39,4 +63,93 @@ void test_assert(bool exp, const char *exp_str, #a, #b, #a, (unsigned long) __a, #b, (unsigned long) __b); \ } while (0) +#define TEST_FAIL(fmt, ...) do { \ + TEST_ASSERT(false, fmt, ##__VA_ARGS__); \ + __builtin_unreachable(); \ +} while (0) + +size_t parse_size(const char *size); + +int64_t timespec_to_ns(struct timespec ts); +struct timespec timespec_add_ns(struct timespec ts, int64_t ns); +struct timespec timespec_add(struct timespec ts1, struct timespec ts2); +struct timespec timespec_sub(struct timespec ts1, struct timespec ts2); +struct timespec timespec_elapsed(struct timespec start); +struct timespec timespec_div(struct timespec ts, int divisor); + +enum vm_mem_backing_src_type { + VM_MEM_SRC_ANONYMOUS, + VM_MEM_SRC_ANONYMOUS_THP, + VM_MEM_SRC_ANONYMOUS_HUGETLB, + VM_MEM_SRC_ANONYMOUS_HUGETLB_16KB, + VM_MEM_SRC_ANONYMOUS_HUGETLB_64KB, + VM_MEM_SRC_ANONYMOUS_HUGETLB_512KB, + VM_MEM_SRC_ANONYMOUS_HUGETLB_1MB, + VM_MEM_SRC_ANONYMOUS_HUGETLB_2MB, + VM_MEM_SRC_ANONYMOUS_HUGETLB_8MB, + VM_MEM_SRC_ANONYMOUS_HUGETLB_16MB, + VM_MEM_SRC_ANONYMOUS_HUGETLB_32MB, + VM_MEM_SRC_ANONYMOUS_HUGETLB_256MB, + VM_MEM_SRC_ANONYMOUS_HUGETLB_512MB, + VM_MEM_SRC_ANONYMOUS_HUGETLB_1GB, + VM_MEM_SRC_ANONYMOUS_HUGETLB_2GB, + VM_MEM_SRC_ANONYMOUS_HUGETLB_16GB, + VM_MEM_SRC_SHMEM, + VM_MEM_SRC_SHARED_HUGETLB, + NUM_SRC_TYPES, +}; + +#define DEFAULT_VM_MEM_SRC VM_MEM_SRC_ANONYMOUS + +struct vm_mem_backing_src_alias { + const char *name; + uint32_t flag; +}; + +#define MIN_RUN_DELAY_NS 200000UL + +bool thp_configured(void); +size_t get_trans_hugepagesz(void); +size_t get_def_hugetlb_pagesz(void); +const struct vm_mem_backing_src_alias *vm_mem_backing_src_alias(uint32_t i); +size_t get_backing_src_pagesz(uint32_t i); +bool is_backing_src_hugetlb(uint32_t i); +void backing_src_help(const char *flag); +enum vm_mem_backing_src_type parse_backing_src_type(const char *type_name); +long get_run_delay(void); + +/* + * Whether or not the given source type is shared memory (as opposed to + * anonymous). + */ +static inline bool backing_src_is_shared(enum vm_mem_backing_src_type t) +{ + return vm_mem_backing_src_alias(t)->flag & MAP_SHARED; +} + +/* Aligns x up to the next multiple of size. Size must be a power of 2. */ +static inline uint64_t align_up(uint64_t x, uint64_t size) +{ + uint64_t mask = size - 1; + + TEST_ASSERT(size != 0 && !(size & (size - 1)), + "size not a power of 2: %lu", size); + return ((x + mask) & ~mask); +} + +static inline uint64_t align_down(uint64_t x, uint64_t size) +{ + uint64_t x_aligned_up = align_up(x, size); + + if (x == x_aligned_up) + return x; + else + return x_aligned_up - size; +} + +static inline void *align_ptr_up(void *x, size_t size) +{ + return (void *)align_up((unsigned long)x, size); +} + #endif /* SELFTEST_KVM_TEST_UTIL_H */ |