1*699cd480SApple OSS Distributions #include <darwintest.h> 2*699cd480SApple OSS Distributions #include <sys/sysctl.h> 3*699cd480SApple OSS Distributions #include <sys/errno.h> 4*699cd480SApple OSS Distributions 5*699cd480SApple OSS Distributions #define MAX_TASK_PMEM "kern.max_task_pmem" 6*699cd480SApple OSS Distributions #define HW_MEMSIZE_STR "hw.memsize" 7*699cd480SApple OSS Distributions #define HW_MEMSIZE_THRESHOLD 600 * 1024 * 1024 8*699cd480SApple OSS Distributions 9*699cd480SApple OSS Distributions T_GLOBAL_META( 10*699cd480SApple OSS Distributions T_META_NAMESPACE("xnu.vm"), 11*699cd480SApple OSS Distributions T_META_RADAR_COMPONENT_NAME("xnu"), 12*699cd480SApple OSS Distributions T_META_RADAR_COMPONENT_VERSION("VM")); 13*699cd480SApple OSS Distributions 14*699cd480SApple OSS Distributions /* 15*699cd480SApple OSS Distributions * Embedded Device having physical memory greater than 600MB should have positive 16*699cd480SApple OSS Distributions * value for kern.max_task_pmem if present. 17*699cd480SApple OSS Distributions * Strategy: 18*699cd480SApple OSS Distributions * Fetch hw.memsize for the device. 19*699cd480SApple OSS Distributions * If hw.memsize > 600MB, and kern.max_task_pmem is present, assert that 20*699cd480SApple OSS Distributions * kern.max_task_pmem is set to value > 0. 21*699cd480SApple OSS Distributions */ 22*699cd480SApple OSS Distributions T_DECL(kern_max_task_pmem, "Embedded platforms should have a positive value for kern.max_task_pmem when hw.memsize > 600MB") 23*699cd480SApple OSS Distributions { 24*699cd480SApple OSS Distributions int kern_max_task_pmem = 0; 25*699cd480SApple OSS Distributions size_t pmem_size = sizeof(kern_max_task_pmem); 26*699cd480SApple OSS Distributions 27*699cd480SApple OSS Distributions uint64_t hw_memsize = 0; 28*699cd480SApple OSS Distributions size_t size_hw_memsize = sizeof(hw_memsize); 29*699cd480SApple OSS Distributions 30*699cd480SApple OSS Distributions int ret = 0; 31*699cd480SApple OSS Distributions 32*699cd480SApple OSS Distributions ret = sysctlbyname(HW_MEMSIZE_STR, &hw_memsize, &size_hw_memsize, NULL, 0); 33*699cd480SApple OSS Distributions T_ASSERT_POSIX_SUCCESS(ret, "call sysctlbyname to get hardware mem size."); 34*699cd480SApple OSS Distributions 35*699cd480SApple OSS Distributions T_LOG("Checking if %s > %d", HW_MEMSIZE_STR, HW_MEMSIZE_THRESHOLD); 36*699cd480SApple OSS Distributions if (hw_memsize <= HW_MEMSIZE_THRESHOLD) { 37*699cd480SApple OSS Distributions T_SKIP("Device has hw.memsize = %lld. Skipping the check for %s", hw_memsize, MAX_TASK_PMEM); 38*699cd480SApple OSS Distributions } 39*699cd480SApple OSS Distributions 40*699cd480SApple OSS Distributions T_LOG("Device has %s = %lld", HW_MEMSIZE_STR, hw_memsize); 41*699cd480SApple OSS Distributions T_LOG("Testing for %s ...", MAX_TASK_PMEM); 42*699cd480SApple OSS Distributions 43*699cd480SApple OSS Distributions ret = sysctlbyname(MAX_TASK_PMEM, &kern_max_task_pmem, &pmem_size, NULL, 0); 44*699cd480SApple OSS Distributions T_ASSERT_POSIX_SUCCESS(ret, "call sysctlbyname to get max task physical memory"); 45*699cd480SApple OSS Distributions 46*699cd480SApple OSS Distributions T_LOG("%s = %d", MAX_TASK_PMEM, kern_max_task_pmem); 47*699cd480SApple OSS Distributions T_ASSERT_GT_INT(kern_max_task_pmem, 0, "%s should be greater than 0", MAX_TASK_PMEM); 48*699cd480SApple OSS Distributions } 49