1*19c3b8c2SApple OSS Distributions #include <darwintest.h> 2*19c3b8c2SApple OSS Distributions #include <sys/sysctl.h> 3*19c3b8c2SApple OSS Distributions #include <sys/errno.h> 4*19c3b8c2SApple OSS Distributions 5*19c3b8c2SApple OSS Distributions #define MAX_TASK_PMEM "kern.max_task_pmem" 6*19c3b8c2SApple OSS Distributions #define HW_MEMSIZE_STR "hw.memsize" 7*19c3b8c2SApple OSS Distributions #define HW_MEMSIZE_THRESHOLD 600 * 1024 * 1024 8*19c3b8c2SApple OSS Distributions 9*19c3b8c2SApple OSS Distributions T_GLOBAL_META( 10*19c3b8c2SApple OSS Distributions T_META_NAMESPACE("xnu.vm"), 11*19c3b8c2SApple OSS Distributions T_META_RADAR_COMPONENT_NAME("xnu"), 12*19c3b8c2SApple OSS Distributions T_META_RADAR_COMPONENT_VERSION("VM")); 13*19c3b8c2SApple OSS Distributions 14*19c3b8c2SApple OSS Distributions /* 15*19c3b8c2SApple OSS Distributions * Embedded Device having physical memory greater than 600MB should have positive 16*19c3b8c2SApple OSS Distributions * value for kern.max_task_pmem if present. 17*19c3b8c2SApple OSS Distributions * Strategy: 18*19c3b8c2SApple OSS Distributions * Fetch hw.memsize for the device. 19*19c3b8c2SApple OSS Distributions * If hw.memsize > 600MB, and kern.max_task_pmem is present, assert that 20*19c3b8c2SApple OSS Distributions * kern.max_task_pmem is set to value > 0. 21*19c3b8c2SApple OSS Distributions */ 22*19c3b8c2SApple 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*19c3b8c2SApple OSS Distributions { 24*19c3b8c2SApple OSS Distributions int kern_max_task_pmem = 0; 25*19c3b8c2SApple OSS Distributions size_t pmem_size = sizeof(kern_max_task_pmem); 26*19c3b8c2SApple OSS Distributions 27*19c3b8c2SApple OSS Distributions uint64_t hw_memsize = 0; 28*19c3b8c2SApple OSS Distributions size_t size_hw_memsize = sizeof(hw_memsize); 29*19c3b8c2SApple OSS Distributions 30*19c3b8c2SApple OSS Distributions int ret = 0; 31*19c3b8c2SApple OSS Distributions 32*19c3b8c2SApple OSS Distributions ret = sysctlbyname(HW_MEMSIZE_STR, &hw_memsize, &size_hw_memsize, NULL, 0); 33*19c3b8c2SApple OSS Distributions T_ASSERT_POSIX_SUCCESS(ret, "call sysctlbyname to get hardware mem size."); 34*19c3b8c2SApple OSS Distributions 35*19c3b8c2SApple OSS Distributions T_LOG("Checking if %s > %d", HW_MEMSIZE_STR, HW_MEMSIZE_THRESHOLD); 36*19c3b8c2SApple OSS Distributions if (hw_memsize <= HW_MEMSIZE_THRESHOLD) { 37*19c3b8c2SApple OSS Distributions T_SKIP("Device has hw.memsize = %lld. Skipping the check for %s", hw_memsize, MAX_TASK_PMEM); 38*19c3b8c2SApple OSS Distributions } 39*19c3b8c2SApple OSS Distributions 40*19c3b8c2SApple OSS Distributions T_LOG("Device has %s = %lld", HW_MEMSIZE_STR, hw_memsize); 41*19c3b8c2SApple OSS Distributions T_LOG("Testing for %s ...", MAX_TASK_PMEM); 42*19c3b8c2SApple OSS Distributions 43*19c3b8c2SApple OSS Distributions ret = sysctlbyname(MAX_TASK_PMEM, &kern_max_task_pmem, &pmem_size, NULL, 0); 44*19c3b8c2SApple OSS Distributions T_ASSERT_POSIX_SUCCESS(ret, "call sysctlbyname to get max task physical memory"); 45*19c3b8c2SApple OSS Distributions 46*19c3b8c2SApple OSS Distributions T_LOG("%s = %d", MAX_TASK_PMEM, kern_max_task_pmem); 47*19c3b8c2SApple OSS Distributions T_ASSERT_GT_INT(kern_max_task_pmem, 0, "%s should be greater than 0", MAX_TASK_PMEM); 48*19c3b8c2SApple OSS Distributions } 49