2 * System call callback functions for SPUs
7 #include <linux/kallsyms.h>
8 #include <linux/module.h>
9 #include <linux/syscalls.h>
12 #include <asm/syscalls.h>
13 #include <asm/unistd.h>
16 * This table defines the system calls that an SPU can call.
17 * It is currently a subset of the 64 bit powerpc system calls,
18 * with the exact semantics.
20 * The reasons for disabling some of the system calls are:
21 * 1. They interact with the way SPU syscalls are handled
22 * and we can't let them execute ever:
23 * restart_syscall, exit, for, execve, ptrace, ...
24 * 2. They are deprecated and replaced by other means:
25 * uselib, pciconfig_*, sysfs, ...
26 * 3. They are somewhat interacting with the system in a way
27 * we don't want an SPU to:
28 * reboot, init_module, mount, kexec_load
29 * 4. They are optional and we can't rely on them being
30 * linked into the kernel. Unfortunately, the cond_syscall
31 * helper does not work here as it does not add the necessary
33 * mbind, mq_open, ipc, ...
36 void *spu_syscall_table[] = {
37 [__NR_restart_syscall] sys_ni_syscall, /* sys_restart_syscall */
38 [__NR_exit] sys_ni_syscall, /* sys_exit */
39 [__NR_fork] sys_ni_syscall, /* ppc_fork */
41 [__NR_write] sys_write,
43 [__NR_close] sys_close,
44 [__NR_waitpid] sys_waitpid,
45 [__NR_creat] sys_creat,
47 [__NR_unlink] sys_unlink,
48 [__NR_execve] sys_ni_syscall, /* sys_execve */
49 [__NR_chdir] sys_chdir,
51 [__NR_mknod] sys_mknod,
52 [__NR_chmod] sys_chmod,
53 [__NR_lchown] sys_lchown,
54 [__NR_break] sys_ni_syscall,
55 [__NR_oldstat] sys_ni_syscall,
56 [__NR_lseek] sys_lseek,
57 [__NR_getpid] sys_getpid,
58 [__NR_mount] sys_ni_syscall, /* sys_mount */
59 [__NR_umount] sys_ni_syscall,
60 [__NR_setuid] sys_setuid,
61 [__NR_getuid] sys_getuid,
62 [__NR_stime] sys_stime,
63 [__NR_ptrace] sys_ni_syscall, /* sys_ptrace */
64 [__NR_alarm] sys_alarm,
65 [__NR_oldfstat] sys_ni_syscall,
66 [__NR_pause] sys_ni_syscall, /* sys_pause */
67 [__NR_utime] sys_ni_syscall, /* sys_utime */
68 [__NR_stty] sys_ni_syscall,
69 [__NR_gtty] sys_ni_syscall,
70 [__NR_access] sys_access,
72 [__NR_ftime] sys_ni_syscall,
75 [__NR_rename] sys_rename,
76 [__NR_mkdir] sys_mkdir,
77 [__NR_rmdir] sys_rmdir,
80 [__NR_times] sys_times,
81 [__NR_prof] sys_ni_syscall,
83 [__NR_setgid] sys_setgid,
84 [__NR_getgid] sys_getgid,
85 [__NR_signal] sys_ni_syscall, /* sys_signal */
86 [__NR_geteuid] sys_geteuid,
87 [__NR_getegid] sys_getegid,
88 [__NR_acct] sys_ni_syscall, /* sys_acct */
89 [__NR_umount2] sys_ni_syscall, /* sys_umount */
90 [__NR_lock] sys_ni_syscall,
91 [__NR_ioctl] sys_ioctl,
92 [__NR_fcntl] sys_fcntl,
93 [__NR_mpx] sys_ni_syscall,
94 [__NR_setpgid] sys_setpgid,
95 [__NR_ulimit] sys_ni_syscall,
96 [__NR_oldolduname] sys_ni_syscall,
97 [__NR_umask] sys_umask,
98 [__NR_chroot] sys_chroot,
99 [__NR_ustat] sys_ni_syscall, /* sys_ustat */
100 [__NR_dup2] sys_dup2,
101 [__NR_getppid] sys_getppid,
102 [__NR_getpgrp] sys_getpgrp,
103 [__NR_setsid] sys_setsid,
104 [__NR_sigaction] sys_ni_syscall,
105 [__NR_sgetmask] sys_sgetmask,
106 [__NR_ssetmask] sys_ssetmask,
107 [__NR_setreuid] sys_setreuid,
108 [__NR_setregid] sys_setregid,
109 [__NR_sigsuspend] sys_ni_syscall,
110 [__NR_sigpending] sys_ni_syscall,
111 [__NR_sethostname] sys_sethostname,
112 [__NR_setrlimit] sys_setrlimit,
113 [__NR_getrlimit] sys_ni_syscall,
114 [__NR_getrusage] sys_getrusage,
115 [__NR_gettimeofday] sys_gettimeofday,
116 [__NR_settimeofday] sys_settimeofday,
117 [__NR_getgroups] sys_getgroups,
118 [__NR_setgroups] sys_setgroups,
119 [__NR_select] sys_ni_syscall,
120 [__NR_symlink] sys_symlink,
121 [__NR_oldlstat] sys_ni_syscall,
122 [__NR_readlink] sys_readlink,
123 [__NR_uselib] sys_ni_syscall, /* sys_uselib */
124 [__NR_swapon] sys_ni_syscall, /* sys_swapon */
125 [__NR_reboot] sys_ni_syscall, /* sys_reboot */
126 [__NR_readdir] sys_ni_syscall,
127 [__NR_mmap] sys_mmap,
128 [__NR_munmap] sys_munmap,
129 [__NR_truncate] sys_truncate,
130 [__NR_ftruncate] sys_ftruncate,
131 [__NR_fchmod] sys_fchmod,
132 [__NR_fchown] sys_fchown,
133 [__NR_getpriority] sys_getpriority,
134 [__NR_setpriority] sys_setpriority,
135 [__NR_profil] sys_ni_syscall,
136 [__NR_statfs] sys_ni_syscall, /* sys_statfs */
137 [__NR_fstatfs] sys_ni_syscall, /* sys_fstatfs */
138 [__NR_ioperm] sys_ni_syscall,
139 [__NR_socketcall] sys_socketcall,
140 [__NR_syslog] sys_syslog,
141 [__NR_setitimer] sys_setitimer,
142 [__NR_getitimer] sys_getitimer,
143 [__NR_stat] sys_newstat,
144 [__NR_lstat] sys_newlstat,
145 [__NR_fstat] sys_newfstat,
146 [__NR_olduname] sys_ni_syscall,
147 [__NR_iopl] sys_ni_syscall,
148 [__NR_vhangup] sys_vhangup,
149 [__NR_idle] sys_ni_syscall,
150 [__NR_vm86] sys_ni_syscall,
151 [__NR_wait4] sys_wait4,
152 [__NR_swapoff] sys_ni_syscall, /* sys_swapoff */
153 [__NR_sysinfo] sys_sysinfo,
154 [__NR_ipc] sys_ni_syscall, /* sys_ipc */
155 [__NR_fsync] sys_fsync,
156 [__NR_sigreturn] sys_ni_syscall,
157 [__NR_clone] sys_ni_syscall, /* ppc_clone */
158 [__NR_setdomainname] sys_setdomainname,
159 [__NR_uname] ppc_newuname,
160 [__NR_modify_ldt] sys_ni_syscall,
161 [__NR_adjtimex] sys_adjtimex,
162 [__NR_mprotect] sys_mprotect,
163 [__NR_sigprocmask] sys_ni_syscall,
164 [__NR_create_module] sys_ni_syscall,
165 [__NR_init_module] sys_ni_syscall, /* sys_init_module */
166 [__NR_delete_module] sys_ni_syscall, /* sys_delete_module */
167 [__NR_get_kernel_syms] sys_ni_syscall,
168 [__NR_quotactl] sys_ni_syscall, /* sys_quotactl */
169 [__NR_getpgid] sys_getpgid,
170 [__NR_fchdir] sys_fchdir,
171 [__NR_bdflush] sys_bdflush,
172 [__NR_sysfs] sys_ni_syscall, /* sys_sysfs */
173 [__NR_personality] ppc64_personality,
174 [__NR_afs_syscall] sys_ni_syscall,
175 [__NR_setfsuid] sys_setfsuid,
176 [__NR_setfsgid] sys_setfsgid,
177 [__NR__llseek] sys_llseek,
178 [__NR_getdents] sys_getdents,
179 [__NR__newselect] sys_select,
180 [__NR_flock] sys_flock,
181 [__NR_msync] sys_msync,
182 [__NR_readv] sys_readv,
183 [__NR_writev] sys_writev,
184 [__NR_getsid] sys_getsid,
185 [__NR_fdatasync] sys_fdatasync,
186 [__NR__sysctl] sys_ni_syscall, /* sys_sysctl */
187 [__NR_mlock] sys_mlock,
188 [__NR_munlock] sys_munlock,
189 [__NR_mlockall] sys_mlockall,
190 [__NR_munlockall] sys_munlockall,
191 [__NR_sched_setparam] sys_sched_setparam,
192 [__NR_sched_getparam] sys_sched_getparam,
193 [__NR_sched_setscheduler] sys_sched_setscheduler,
194 [__NR_sched_getscheduler] sys_sched_getscheduler,
195 [__NR_sched_yield] sys_sched_yield,
196 [__NR_sched_get_priority_max] sys_sched_get_priority_max,
197 [__NR_sched_get_priority_min] sys_sched_get_priority_min,
198 [__NR_sched_rr_get_interval] sys_sched_rr_get_interval,
199 [__NR_nanosleep] sys_nanosleep,
200 [__NR_mremap] sys_mremap,
201 [__NR_setresuid] sys_setresuid,
202 [__NR_getresuid] sys_getresuid,
203 [__NR_query_module] sys_ni_syscall,
204 [__NR_poll] sys_poll,
205 [__NR_nfsservctl] sys_ni_syscall, /* sys_nfsservctl */
206 [__NR_setresgid] sys_setresgid,
207 [__NR_getresgid] sys_getresgid,
208 [__NR_prctl] sys_prctl,
209 [__NR_rt_sigreturn] sys_ni_syscall, /* ppc64_rt_sigreturn */
210 [__NR_rt_sigaction] sys_ni_syscall, /* sys_rt_sigaction */
211 [__NR_rt_sigprocmask] sys_ni_syscall, /* sys_rt_sigprocmask */
212 [__NR_rt_sigpending] sys_ni_syscall, /* sys_rt_sigpending */
213 [__NR_rt_sigtimedwait] sys_ni_syscall, /* sys_rt_sigtimedwait */
214 [__NR_rt_sigqueueinfo] sys_ni_syscall, /* sys_rt_sigqueueinfo */
215 [__NR_rt_sigsuspend] sys_ni_syscall, /* sys_rt_sigsuspend */
216 [__NR_pread64] sys_pread64,
217 [__NR_pwrite64] sys_pwrite64,
218 [__NR_chown] sys_chown,
219 [__NR_getcwd] sys_getcwd,
220 [__NR_capget] sys_capget,
221 [__NR_capset] sys_capset,
222 [__NR_sigaltstack] sys_ni_syscall, /* sys_sigaltstack */
223 [__NR_sendfile] sys_sendfile64,
224 [__NR_getpmsg] sys_ni_syscall,
225 [__NR_putpmsg] sys_ni_syscall,
226 [__NR_vfork] sys_ni_syscall, /* ppc_vfork */
227 [__NR_ugetrlimit] sys_getrlimit,
228 [__NR_readahead] sys_readahead,
229 [192] sys_ni_syscall,
230 [193] sys_ni_syscall,
231 [194] sys_ni_syscall,
232 [195] sys_ni_syscall,
233 [196] sys_ni_syscall,
234 [197] sys_ni_syscall,
235 [__NR_pciconfig_read] sys_ni_syscall, /* sys_pciconfig_read */
236 [__NR_pciconfig_write] sys_ni_syscall, /* sys_pciconfig_write */
237 [__NR_pciconfig_iobase] sys_ni_syscall, /* sys_pciconfig_iobase */
238 [__NR_multiplexer] sys_ni_syscall,
239 [__NR_getdents64] sys_getdents64,
240 [__NR_pivot_root] sys_pivot_root,
241 [204] sys_ni_syscall,
242 [__NR_madvise] sys_madvise,
243 [__NR_mincore] sys_mincore,
244 [__NR_gettid] sys_gettid,
245 [__NR_tkill] sys_tkill,
246 [__NR_setxattr] sys_setxattr,
247 [__NR_lsetxattr] sys_lsetxattr,
248 [__NR_fsetxattr] sys_fsetxattr,
249 [__NR_getxattr] sys_getxattr,
250 [__NR_lgetxattr] sys_lgetxattr,
251 [__NR_fgetxattr] sys_fgetxattr,
252 [__NR_listxattr] sys_listxattr,
253 [__NR_llistxattr] sys_llistxattr,
254 [__NR_flistxattr] sys_flistxattr,
255 [__NR_removexattr] sys_removexattr,
256 [__NR_lremovexattr] sys_lremovexattr,
257 [__NR_fremovexattr] sys_fremovexattr,
258 [__NR_futex] sys_futex,
259 [__NR_sched_setaffinity] sys_sched_setaffinity,
260 [__NR_sched_getaffinity] sys_sched_getaffinity,
261 [__NR_tuxcall] sys_ni_syscall,
262 [226] sys_ni_syscall,
263 [__NR_io_setup] sys_io_setup,
264 [__NR_io_destroy] sys_io_destroy,
265 [__NR_io_getevents] sys_io_getevents,
266 [__NR_io_submit] sys_io_submit,
267 [__NR_io_cancel] sys_io_cancel,
268 [__NR_set_tid_address] sys_ni_syscall, /* sys_set_tid_address */
269 [__NR_fadvise64] sys_fadvise64,
270 [__NR_exit_group] sys_ni_syscall, /* sys_exit_group */
271 [__NR_lookup_dcookie] sys_ni_syscall, /* sys_lookup_dcookie */
272 [__NR_epoll_create] sys_epoll_create,
273 [__NR_epoll_ctl] sys_epoll_ctl,
274 [__NR_epoll_wait] sys_epoll_wait,
275 [__NR_remap_file_pages] sys_remap_file_pages,
276 [__NR_timer_create] sys_timer_create,
277 [__NR_timer_settime] sys_timer_settime,
278 [__NR_timer_gettime] sys_timer_gettime,
279 [__NR_timer_getoverrun] sys_timer_getoverrun,
280 [__NR_timer_delete] sys_timer_delete,
281 [__NR_clock_settime] sys_clock_settime,
282 [__NR_clock_gettime] sys_clock_gettime,
283 [__NR_clock_getres] sys_clock_getres,
284 [__NR_clock_nanosleep] sys_clock_nanosleep,
285 [__NR_swapcontext] sys_ni_syscall, /* ppc64_swapcontext */
286 [__NR_tgkill] sys_tgkill,
287 [__NR_utimes] sys_utimes,
288 [__NR_statfs64] sys_statfs64,
289 [__NR_fstatfs64] sys_fstatfs64,
290 [254] sys_ni_syscall,
291 [__NR_rtas] ppc_rtas,
292 [256] sys_ni_syscall,
293 [257] sys_ni_syscall,
294 [258] sys_ni_syscall,
295 [__NR_mbind] sys_ni_syscall, /* sys_mbind */
296 [__NR_get_mempolicy] sys_ni_syscall, /* sys_get_mempolicy */
297 [__NR_set_mempolicy] sys_ni_syscall, /* sys_set_mempolicy */
298 [__NR_mq_open] sys_ni_syscall, /* sys_mq_open */
299 [__NR_mq_unlink] sys_ni_syscall, /* sys_mq_unlink */
300 [__NR_mq_timedsend] sys_ni_syscall, /* sys_mq_timedsend */
301 [__NR_mq_timedreceive] sys_ni_syscall, /* sys_mq_timedreceive */
302 [__NR_mq_notify] sys_ni_syscall, /* sys_mq_notify */
303 [__NR_mq_getsetattr] sys_ni_syscall, /* sys_mq_getsetattr */
304 [__NR_kexec_load] sys_ni_syscall, /* sys_kexec_load */
305 [__NR_add_key] sys_ni_syscall, /* sys_add_key */
306 [__NR_request_key] sys_ni_syscall, /* sys_request_key */
307 [__NR_keyctl] sys_ni_syscall, /* sys_keyctl */
308 [__NR_waitid] sys_ni_syscall, /* sys_waitid */
309 [__NR_ioprio_set] sys_ni_syscall, /* sys_ioprio_set */
310 [__NR_ioprio_get] sys_ni_syscall, /* sys_ioprio_get */
311 [__NR_inotify_init] sys_ni_syscall, /* sys_inotify_init */
312 [__NR_inotify_add_watch] sys_ni_syscall, /* sys_inotify_add_watch */
313 [__NR_inotify_rm_watch] sys_ni_syscall, /* sys_inotify_rm_watch */
314 [__NR_spu_run] sys_ni_syscall, /* sys_spu_run */
315 [__NR_spu_create] sys_ni_syscall, /* sys_spu_create */
316 [__NR_pselect6] sys_ni_syscall, /* sys_pselect */
317 [__NR_ppoll] sys_ni_syscall, /* sys_ppoll */
318 [__NR_unshare] sys_unshare,
319 [__NR_splice] sys_splice,
322 long spu_sys_callback(struct spu_syscall_block *s)
324 long (*syscall)(u64 a1, u64 a2, u64 a3, u64 a4, u64 a5, u64 a6);
326 BUILD_BUG_ON(ARRAY_SIZE(spu_syscall_table) != __NR_syscalls);
328 syscall = spu_syscall_table[s->nr_ret];
330 if (s->nr_ret >= __NR_syscalls) {
331 pr_debug("%s: invalid syscall #%ld", __FUNCTION__, s->nr_ret);
336 print_symbol(KERN_DEBUG "SPU-syscall %s:", (unsigned long)syscall);
337 printk("syscall%ld(%lx, %lx, %lx, %lx, %lx, %lx)\n",
339 s->parm[0], s->parm[1], s->parm[2],
340 s->parm[3], s->parm[4], s->parm[5]);
343 return syscall(s->parm[0], s->parm[1], s->parm[2],
344 s->parm[3], s->parm[4], s->parm[5]);
346 EXPORT_SYMBOL_GPL(spu_sys_callback);
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