projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| c3c9b80d A |
1 | #include <sys/sysctl.h> |
| 2 | #include <time.h> | |
| 3 | ||
| 4 | #include <darwintest.h> | |
| 5 | ||
| 6 | /* | |
| 7 | * trying phys offsets from start of dram of: | |
| 8 | * watchOS 512Meg | |
| 9 | * macOS 3Gig | |
| 10 | * iOS,etc. 750Meg | |
| 11 | */ | |
| 12 | #if TARGET_OS_WATCH | |
| 13 | #define USEBOOTARG "bad_ram_pages=536870912 bad_static_mfree=1" | |
| 14 | #elif TARGET_OS_OSX | |
| 15 | #define USEBOOTARG "bad_ram_pages=3221225472 bad_static_mfree=1" | |
| 16 | #else | |
| 17 | #define USEBOOTARG "bad_ram_pages=786432000 bad_static_mfree=1" | |
| 18 | #endif | |
| 19 | ||
| 20 | T_DECL(retired_pages_test, | |
| 21 | "Test retiring pages at boot", | |
| 22 | T_META_NAMESPACE("xnu.vm"), | |
| 23 | T_META_BOOTARGS_SET(USEBOOTARG), | |
| 24 | T_META_ASROOT(true), | |
| 25 | T_META_CHECK_LEAKS(false)) | |
| 26 | { | |
| 27 | int err; | |
| 28 | unsigned int count = 0; | |
| 29 | size_t s = sizeof(count); | |
| 30 | ||
| 31 | #if !defined(__arm64__) || TARGET_OS_BRIDGE | |
| 32 | T_SKIP("No page retirement on x86, arm32 or bridgeOS kernels"); | |
| 33 | #endif | |
| 34 | /* | |
| 35 | * Get the number of pages retired from the kernel | |
| 36 | */ | |
| 37 | err = sysctlbyname("vm.retired_pages_count", &count, &s, NULL, 0); | |
| 38 | ||
| 39 | /* If the sysctl isn't supported, test succeeds */ | |
| 40 | if (err == ENOENT) { | |
| 41 | T_SKIP("sysctl vm.retired_pages_count not found, skipping test"); | |
| 42 | } | |
| 43 | T_ASSERT_POSIX_SUCCESS(err, "sysctl vm.retired_pages_count"); | |
| 44 | ||
| 45 | T_ASSERT_GT_INT(count, 0, "Expect retired pages"); | |
| 46 | } |