1 #include <sys/sysctl.h>
2 #include <darwintest.h>
3 #include <darwintest_utils.h>
4
5 #include "test_utils.h"
6
7 T_GLOBAL_META(
8 T_META_NAMESPACE("xnu.vm"),
9 T_META_RADAR_COMPONENT_NAME("xnu"),
10 T_META_RADAR_COMPONENT_VERSION("VM"),
11 T_META_ASROOT(YES),
12 T_META_RUN_CONCURRENTLY(true));
13
14 static int64_t
run_sysctl_test(const char * t,int64_t value)15 run_sysctl_test(const char *t, int64_t value)
16 {
17 char name[1024];
18 int64_t result = 0;
19 size_t s = sizeof(value);
20 int rc;
21
22 snprintf(name, sizeof(name), "debug.test.%s", t);
23 rc = sysctlbyname(name, &result, &s, &value, s);
24 T_ASSERT_POSIX_SUCCESS(rc, "sysctlbyname(%s)", t);
25 return result;
26 }
27
28 T_DECL(vm_map_id_fork,
29 "Ensure fork() maps witness a new ID",
30 T_META_REQUIRES_SYSCTL_EQ("hw.optional.arm.FEAT_MTE4", 1),
31 XNU_T_META_SOC_SPECIFIC)
32 {
33 T_EXPECT_EQ(1ULL, run_sysctl_test("vm_map_id_fork", 0), "vm_map_id_fork");
34 }
35
36 T_DECL(vm_map_alias_mte_mapping_in_other_non_mte_map,
37 "Ensure an MTE mapping aliased into another non-MTE map is mapped as non-MTE, and roundtrips back to the originator are mapped as MTE",
38 T_META_REQUIRES_SYSCTL_EQ("hw.optional.arm.FEAT_MTE4", 1),
39 XNU_T_META_SOC_SPECIFIC)
40 {
41 T_EXPECT_EQ(1ULL, run_sysctl_test("vm_map_alias_mte_mapping_in_other_non_mte_map", 0), "vm_map_alias_mte_mapping_in_other_non_mte_map");
42 }
43
44 T_DECL(vm_map_alias_mte_mapping_in_other_mte_map,
45 "Ensure an MTE mapping aliased into another MTE map is mapped as non-MTE, and roundtrips back to the originator are mapped as MTE",
46 T_META_REQUIRES_SYSCTL_EQ("hw.optional.arm.FEAT_MTE4", 1),
47 XNU_T_META_SOC_SPECIFIC)
48 {
49 T_EXPECT_EQ(1ULL, run_sysctl_test("vm_map_alias_mte_mapping_in_other_mte_map", 0), "vm_map_alias_mte_mapping_in_other_mte_map");
50 }
51
52 T_DECL(vm_map_alias_mte_mapping_in_fork_map,
53 "Ensure MTE mappings shared across fork pairs are MTE enabled in every case",
54 T_META_REQUIRES_SYSCTL_EQ("hw.optional.arm.FEAT_MTE4", 1),
55 XNU_T_META_SOC_SPECIFIC)
56 {
57 T_EXPECT_EQ(1ULL, run_sysctl_test("vm_map_alias_mte_mapping_in_fork_map", 0), "vm_map_alias_mte_mapping_in_fork_map");
58 }
59
60 T_DECL(vm_transpose_provenance,
61 "Ensure VM objects that are transposed have their serials transposed",
62 T_META_REQUIRES_SYSCTL_EQ("hw.optional.arm.FEAT_MTE4", 1),
63 XNU_T_META_SOC_SPECIFIC)
64 {
65 T_EXPECT_EQ(1ULL, run_sysctl_test("vm_object_transpose_provenance", 0), "vm_object_transpose_provenance");
66 }
67