1 /*
2 * Copyright (c) 2016 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29 #include <sys/sysctl.h>
30
31 extern kern_return_t test_pmap_enter_disconnect(unsigned int);
32 extern kern_return_t test_pmap_compress_remove(unsigned int);
33 extern kern_return_t test_pmap_exec_remove(unsigned int);
34 extern kern_return_t test_pmap_nesting(unsigned int);
35 extern kern_return_t test_pmap_iommu_disconnect(void);
36 extern kern_return_t test_pmap_extended(void);
37 extern void test_pmap_call_overhead(unsigned int);
38 extern uint64_t test_pmap_page_protect_overhead(unsigned int, unsigned int);
39
40 static int
sysctl_test_pmap_enter_disconnect(__unused struct sysctl_oid * oidp,__unused void * arg1,__unused int arg2,struct sysctl_req * req)41 sysctl_test_pmap_enter_disconnect(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
42 {
43 unsigned int num_loops;
44 int error, changed;
45 error = sysctl_io_number(req, 0, sizeof(num_loops), &num_loops, &changed);
46 if (error || !changed) {
47 return error;
48 }
49 return test_pmap_enter_disconnect(num_loops);
50 }
51
52 SYSCTL_PROC(_kern, OID_AUTO, pmap_enter_disconnect_test,
53 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
54 0, 0, sysctl_test_pmap_enter_disconnect, "I", "");
55
56 static int
sysctl_test_pmap_compress_remove(__unused struct sysctl_oid * oidp,__unused void * arg1,__unused int arg2,struct sysctl_req * req)57 sysctl_test_pmap_compress_remove(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
58 {
59 unsigned int num_loops;
60 int error, changed;
61 error = sysctl_io_number(req, 0, sizeof(num_loops), &num_loops, &changed);
62 if (error || !changed) {
63 return error;
64 }
65 return test_pmap_compress_remove(num_loops);
66 }
67
68 SYSCTL_PROC(_kern, OID_AUTO, pmap_compress_remove_test,
69 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
70 0, 0, sysctl_test_pmap_compress_remove, "I", "");
71
72 static int
sysctl_test_pmap_exec_remove(__unused struct sysctl_oid * oidp,__unused void * arg1,__unused int arg2,struct sysctl_req * req)73 sysctl_test_pmap_exec_remove(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
74 {
75 unsigned int num_loops;
76 int error, changed;
77 error = sysctl_io_number(req, 0, sizeof(num_loops), &num_loops, &changed);
78 if (error || !changed) {
79 return error;
80 }
81 return test_pmap_exec_remove(num_loops);
82 }
83
84 SYSCTL_PROC(_kern, OID_AUTO, pmap_exec_remove_test,
85 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
86 0, 0, sysctl_test_pmap_exec_remove, "I", "");
87
88 static int
sysctl_test_pmap_nesting(__unused struct sysctl_oid * oidp,__unused void * arg1,__unused int arg2,struct sysctl_req * req)89 sysctl_test_pmap_nesting(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
90 {
91 unsigned int num_loops;
92 int error, changed;
93 error = sysctl_io_number(req, 0, sizeof(num_loops), &num_loops, &changed);
94 if (error || !changed) {
95 return error;
96 }
97 return test_pmap_nesting(num_loops);
98 }
99 SYSCTL_PROC(_kern, OID_AUTO, pmap_nesting_test,
100 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
101 0, 0, sysctl_test_pmap_nesting, "I", "");
102
103 static int
sysctl_test_pmap_iommu_disconnect(__unused struct sysctl_oid * oidp,__unused void * arg1,__unused int arg2,struct sysctl_req * req)104 sysctl_test_pmap_iommu_disconnect(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
105 {
106 unsigned int run = 0;
107 int error, changed;
108 error = sysctl_io_number(req, 0, sizeof(run), &run, &changed);
109 if (error || !changed) {
110 return error;
111 }
112 return test_pmap_iommu_disconnect();
113 }
114
115 SYSCTL_PROC(_kern, OID_AUTO, pmap_iommu_disconnect_test,
116 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
117 0, 0, sysctl_test_pmap_iommu_disconnect, "I", "");
118
119 static int
sysctl_test_pmap_extended(__unused struct sysctl_oid * oidp,__unused void * arg1,__unused int arg2,struct sysctl_req * req)120 sysctl_test_pmap_extended(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
121 {
122 unsigned int run = 0;
123 int error, changed;
124 error = sysctl_io_number(req, 0, sizeof(run), &run, &changed);
125 if (error || !changed) {
126 return error;
127 }
128 return test_pmap_extended();
129 }
130
131 SYSCTL_PROC(_kern, OID_AUTO, pmap_extended_test,
132 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
133 0, 0, sysctl_test_pmap_extended, "I", "");
134
135 static int
sysctl_test_pmap_call_overhead(__unused struct sysctl_oid * oidp,__unused void * arg1,__unused int arg2,struct sysctl_req * req)136 sysctl_test_pmap_call_overhead(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
137 {
138 unsigned int num_loops;
139 int error, changed;
140 error = sysctl_io_number(req, 0, sizeof(num_loops), &num_loops, &changed);
141 if (error || !changed) {
142 return error;
143 }
144 test_pmap_call_overhead(num_loops);
145 return 0;
146 }
147
148 SYSCTL_PROC(_kern, OID_AUTO, pmap_call_overhead_test,
149 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
150 0, 0, sysctl_test_pmap_call_overhead, "I", "");
151
152 static int
sysctl_test_pmap_page_protect_overhead(__unused struct sysctl_oid * oidp,__unused void * arg1,__unused int arg2,struct sysctl_req * req)153 sysctl_test_pmap_page_protect_overhead(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
154 {
155 struct {
156 unsigned int num_loops;
157 unsigned int num_aliases;
158 } ppo_in;
159
160 int error;
161 uint64_t duration;
162
163 error = SYSCTL_IN(req, &ppo_in, sizeof(ppo_in));
164 if (error) {
165 return error;
166 }
167
168 duration = test_pmap_page_protect_overhead(ppo_in.num_loops, ppo_in.num_aliases);
169 error = SYSCTL_OUT(req, &duration, sizeof(duration));
170 return error;
171 }
172
173 SYSCTL_PROC(_kern, OID_AUTO, pmap_page_protect_overhead_test,
174 CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, sysctl_test_pmap_page_protect_overhead, "-", "");
175