1*8d741a5dSApple OSS Distributions #include <darwintest.h> 2*8d741a5dSApple OSS Distributions #include <sys/sysctl.h> 3*8d741a5dSApple OSS Distributions #include <sys/errno.h> 4*8d741a5dSApple OSS Distributions 5*8d741a5dSApple OSS Distributions #define MAX_TASK_PMEM "kern.max_task_pmem" 6*8d741a5dSApple OSS Distributions #define HW_MEMSIZE_STR "hw.memsize" 7*8d741a5dSApple OSS Distributions #define HW_MEMSIZE_THRESHOLD 600 * 1024 * 1024 8*8d741a5dSApple OSS Distributions 9*8d741a5dSApple OSS Distributions T_GLOBAL_META( 10*8d741a5dSApple OSS Distributions T_META_NAMESPACE("xnu.vm"), 11*8d741a5dSApple OSS Distributions T_META_RADAR_COMPONENT_NAME("xnu"), 12*8d741a5dSApple OSS Distributions T_META_RADAR_COMPONENT_VERSION("VM")); 13*8d741a5dSApple OSS Distributions 14*8d741a5dSApple OSS Distributions /* 15*8d741a5dSApple OSS Distributions * Embedded Device having physical memory greater than 600MB should have positive 16*8d741a5dSApple OSS Distributions * value for kern.max_task_pmem if present. 17*8d741a5dSApple OSS Distributions * Strategy: 18*8d741a5dSApple OSS Distributions * Fetch hw.memsize for the device. 19*8d741a5dSApple OSS Distributions * If hw.memsize > 600MB, and kern.max_task_pmem is present, assert that 20*8d741a5dSApple OSS Distributions * kern.max_task_pmem is set to value > 0. 21*8d741a5dSApple OSS Distributions */ 22*8d741a5dSApple OSS Distributions T_DECL(kern_max_task_pmem, "Embedded platforms should have a positive value for kern.max_task_pmem when hw.memsize > 600MB", T_META_TAG_VM_PREFERRED) 23*8d741a5dSApple OSS Distributions { 24*8d741a5dSApple OSS Distributions int kern_max_task_pmem = 0; 25*8d741a5dSApple OSS Distributions size_t pmem_size = sizeof(kern_max_task_pmem); 26*8d741a5dSApple OSS Distributions 27*8d741a5dSApple OSS Distributions uint64_t hw_memsize = 0; 28*8d741a5dSApple OSS Distributions size_t size_hw_memsize = sizeof(hw_memsize); 29*8d741a5dSApple OSS Distributions 30*8d741a5dSApple OSS Distributions int ret = 0; 31*8d741a5dSApple OSS Distributions 32*8d741a5dSApple OSS Distributions ret = sysctlbyname(HW_MEMSIZE_STR, &hw_memsize, &size_hw_memsize, NULL, 0); 33*8d741a5dSApple OSS Distributions T_ASSERT_POSIX_SUCCESS(ret, "call sysctlbyname to get hardware mem size."); 34*8d741a5dSApple OSS Distributions 35*8d741a5dSApple OSS Distributions T_LOG("Checking if %s > %d", HW_MEMSIZE_STR, HW_MEMSIZE_THRESHOLD); 36*8d741a5dSApple OSS Distributions if (hw_memsize <= HW_MEMSIZE_THRESHOLD) { 37*8d741a5dSApple OSS Distributions T_SKIP("Device has hw.memsize = %lld. Skipping the check for %s", hw_memsize, MAX_TASK_PMEM); 38*8d741a5dSApple OSS Distributions } 39*8d741a5dSApple OSS Distributions 40*8d741a5dSApple OSS Distributions T_LOG("Device has %s = %lld", HW_MEMSIZE_STR, hw_memsize); 41*8d741a5dSApple OSS Distributions T_LOG("Testing for %s ...", MAX_TASK_PMEM); 42*8d741a5dSApple OSS Distributions 43*8d741a5dSApple OSS Distributions ret = sysctlbyname(MAX_TASK_PMEM, &kern_max_task_pmem, &pmem_size, NULL, 0); 44*8d741a5dSApple OSS Distributions T_ASSERT_POSIX_SUCCESS(ret, "call sysctlbyname to get max task physical memory"); 45*8d741a5dSApple OSS Distributions 46*8d741a5dSApple OSS Distributions T_LOG("%s = %d", MAX_TASK_PMEM, kern_max_task_pmem); 47*8d741a5dSApple OSS Distributions T_ASSERT_GT_INT(kern_max_task_pmem, 0, "%s should be greater than 0", MAX_TASK_PMEM); 48*8d741a5dSApple OSS Distributions } 49