1*fdd8201dSApple OSS Distributions #include <darwintest.h> 2*fdd8201dSApple OSS Distributions #include <sys/sysctl.h> 3*fdd8201dSApple OSS Distributions #include <sys/errno.h> 4*fdd8201dSApple OSS Distributions 5*fdd8201dSApple OSS Distributions #define MAX_TASK_PMEM "kern.max_task_pmem" 6*fdd8201dSApple OSS Distributions #define HW_MEMSIZE_STR "hw.memsize" 7*fdd8201dSApple OSS Distributions #define HW_MEMSIZE_THRESHOLD 600 * 1024 * 1024 8*fdd8201dSApple OSS Distributions 9*fdd8201dSApple OSS Distributions T_GLOBAL_META( 10*fdd8201dSApple OSS Distributions T_META_NAMESPACE("xnu.vm"), 11*fdd8201dSApple OSS Distributions T_META_RADAR_COMPONENT_NAME("xnu"), 12*fdd8201dSApple OSS Distributions T_META_RADAR_COMPONENT_VERSION("VM")); 13*fdd8201dSApple OSS Distributions 14*fdd8201dSApple OSS Distributions /* 15*fdd8201dSApple OSS Distributions * Embedded Device having physical memory greater than 600MB should have positive 16*fdd8201dSApple OSS Distributions * value for kern.max_task_pmem if present. 17*fdd8201dSApple OSS Distributions * Strategy: 18*fdd8201dSApple OSS Distributions * Fetch hw.memsize for the device. 19*fdd8201dSApple OSS Distributions * If hw.memsize > 600MB, and kern.max_task_pmem is present, assert that 20*fdd8201dSApple OSS Distributions * kern.max_task_pmem is set to value > 0. 21*fdd8201dSApple OSS Distributions */ 22*fdd8201dSApple 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*fdd8201dSApple OSS Distributions { 24*fdd8201dSApple OSS Distributions int kern_max_task_pmem = 0; 25*fdd8201dSApple OSS Distributions size_t pmem_size = sizeof(kern_max_task_pmem); 26*fdd8201dSApple OSS Distributions 27*fdd8201dSApple OSS Distributions uint64_t hw_memsize = 0; 28*fdd8201dSApple OSS Distributions size_t size_hw_memsize = sizeof(hw_memsize); 29*fdd8201dSApple OSS Distributions 30*fdd8201dSApple OSS Distributions int ret = 0; 31*fdd8201dSApple OSS Distributions 32*fdd8201dSApple OSS Distributions ret = sysctlbyname(HW_MEMSIZE_STR, &hw_memsize, &size_hw_memsize, NULL, 0); 33*fdd8201dSApple OSS Distributions T_ASSERT_POSIX_SUCCESS(ret, "call sysctlbyname to get hardware mem size."); 34*fdd8201dSApple OSS Distributions 35*fdd8201dSApple OSS Distributions T_LOG("Checking if %s > %d", HW_MEMSIZE_STR, HW_MEMSIZE_THRESHOLD); 36*fdd8201dSApple OSS Distributions if (hw_memsize <= HW_MEMSIZE_THRESHOLD) { 37*fdd8201dSApple OSS Distributions T_SKIP("Device has hw.memsize = %lld. Skipping the check for %s", hw_memsize, MAX_TASK_PMEM); 38*fdd8201dSApple OSS Distributions } 39*fdd8201dSApple OSS Distributions 40*fdd8201dSApple OSS Distributions T_LOG("Device has %s = %lld", HW_MEMSIZE_STR, hw_memsize); 41*fdd8201dSApple OSS Distributions T_LOG("Testing for %s ...", MAX_TASK_PMEM); 42*fdd8201dSApple OSS Distributions 43*fdd8201dSApple OSS Distributions ret = sysctlbyname(MAX_TASK_PMEM, &kern_max_task_pmem, &pmem_size, NULL, 0); 44*fdd8201dSApple OSS Distributions T_ASSERT_POSIX_SUCCESS(ret, "call sysctlbyname to get max task physical memory"); 45*fdd8201dSApple OSS Distributions 46*fdd8201dSApple OSS Distributions T_LOG("%s = %d", MAX_TASK_PMEM, kern_max_task_pmem); 47*fdd8201dSApple OSS Distributions T_ASSERT_GT_INT(kern_max_task_pmem, 0, "%s should be greater than 0", MAX_TASK_PMEM); 48*fdd8201dSApple OSS Distributions } 49