/*
* System call callback functions for SPUs
*/
#define DEBUG
#include <linux/kallsyms.h>
#include <linux/module.h>
#include <linux/syscalls.h>
#include <asm/spu.h>
#include <asm/syscalls.h>
#include <asm/unistd.h>
/*
* This table defines the system calls that an SPU can call.
* It is currently a subset of the 64 bit powerpc system calls,
* with the exact semantics.
*
* The reasons for disabling some of the system calls are:
* 1. They interact with the way SPU syscalls are handled
* and we can't let them execute ever:
* restart_syscall, exit, for, execve, ptrace, ...
* 2. They are deprecated and replaced by other means:
* uselib, pciconfig_*, sysfs, ...
* 3. They are somewhat interacting with the system in a way
* we don't want an SPU to:
* reboot, init_module, mount, kexec_load
* 4. They are optional and we can't rely on them being
* linked into the kernel. Unfortunately, the cond_syscall
* helper does not work here as it does not add the necessary
* opd symbols:
* mbind, mq_open, ipc, ...
*/
void *spu_syscall_table[] = {
[__NR_restart_syscall] sys_ni_syscall, /* sys_restart_syscall */
[__NR_exit] sys_ni_syscall, /* sys_exit */
[__NR_fork] sys_ni_syscall, /* ppc_fork */
[__NR_read] sys_read,
[__NR_write] sys_write,
[__NR_open] sys_open,
[__NR_close] sys_close,
[__NR_waitpid] sys_waitpid,
[__NR_creat] sys_creat,
[__NR_link] sys_link,
[__NR_unlink] sys_unlink,
[__NR_execve] sys_ni_syscall, /* sys_execve */
[__NR_chdir] sys_chdir,
[__NR_time] sys_time,
[__NR_mknod] sys_mknod,
[__NR_chmod] sys_chmod,
[__NR_lchown] sys_lchown,
[__NR_break] sys_ni_syscall,
[__NR_oldstat] sys_ni_syscall,
[__NR_lseek] sys_lseek,
[__NR_getpid] sys_getpid,
[__NR_mount] sys_ni_syscall, /* sys_mount */
[__NR_umount] sys_ni_syscall,
[__NR_setuid] sys_setuid,
[__NR_getuid] sys_getuid,
[__NR_stime] sys_stime,
[__NR_ptrace] sys_ni_syscall, /* sys_ptrace */
[__NR_alarm] sys_alarm,
[__NR_oldfstat] sys_ni_syscall,
[__NR_pause] sys_ni_syscall, /* sys_pause */
[__NR_utime] sys_ni_syscall, /* sys_utime */
[__NR_stty] sys_ni_syscall,
[__NR_gtty] sys_ni_syscall,
[__NR_access] sys_access,
[__NR_nice] sys_nice,
[__NR_ftime] sys_ni_syscall,
[__NR_sync] sys_sync,
[__NR_kill] sys_kill,
[__NR_rename] sys_rename,
[__NR_mkdir] sys_mkdir,
[__NR_rmdir] sys_rmdir,
[__NR_dup] sys_dup,
[__NR_pipe] sys_pipe,
[__NR_times] sys_times,
[__NR_prof] sys_ni_syscall,
[__NR_brk] sys_brk,
[__NR_setgid] sys_setgid,
[__NR_getgid] sys_getgid,
[__NR_signal] sys_ni_syscall, /* sys_signal */
[__NR_geteuid] sys_geteuid,
[__NR_getegid] sys_getegid,
[__NR_acct] sys_ni_syscall, /* sys_acct */
[__NR_umount2] sys_ni_syscall, /* sys_umount */
[__NR_lock] sys_ni_syscall,
[__NR_ioctl] sys_ioctl,
[__NR_fcntl] sys_fcntl,
[__NR_mpx] sys_ni_syscall,
[__NR_setpgid] sys_setpgid,
[__NR_ulimit] sys_ni_syscall,
[__NR_oldolduname] sys_ni_syscall,
[__NR_umask] sys_umask,
[__NR_chroot] sys_chroot,
[__NR_ustat] sys_ni_syscall, /* sys_ustat */
[__NR_dup2] sys_dup2,
[__NR_getppid] sys_getppid,
[__NR_getpgrp] sys_getpgrp,
[__NR_setsid] sys_setsid,
[__NR_sigaction] sys_ni_syscall,
[__NR_sgetmask] sys_sgetmask,
[__NR_ssetmask] sys_ssetmask,
[__NR_setreuid] sys_setreuid,
[__NR_setregid] sys_setregid,
[__NR_sigsuspend] sys_ni_syscall,
[__NR_sigpending] sys_ni_syscall,
[__NR_sethostname] sys_sethostname,
[__NR_setrlimit] sys_setrlimit,
[__NR_getrlimit] sys_ni_syscall,
[__NR_getrusage] sys_getrusage,
[__NR_gettimeofday] sys_gettimeofday,
[__NR_settimeofday] sys_settimeofday,
[__NR_getgroups] sys_getgroups,
[__NR_setgroups] sys_setgroups,
[__NR_select] sys_ni_syscall,
[__NR_symlink] sys_symlink,
[__NR_oldlstat] sys_ni_syscall,
[__NR_readlink] sys_readlink,
[__NR_uselib] sys_ni_syscall, /* sys_uselib */
[__NR_swapon] sys_ni_syscall, /* sys_swapon */
[__NR_reboot] sys_ni_syscall, /* sys_reboot */
[__NR_readdir] sys_ni_syscall,
[__NR_mmap] sys_mmap,
[__NR_munmap] sys_munmap,
[__NR_truncate] sys_truncate,
[__NR_ftruncate] sys_ftruncate,
[__NR_fchmod] sys_fchmod,
[__NR_fchown] sys_fchown,
[__NR_getpriority] sys_getpriority,
[__NR_setpriority] sys_setpriority,
[__NR_profil] sys_ni_syscall,
[__NR_statfs] sys_ni_syscall, /* sys_statfs */
[__NR_fstatfs] sys_ni_syscall, /* sys_fstatfs */
[__NR_ioperm] sys_ni_syscall,
[__NR_socketcall] sys_socketcall,
[__NR_syslog] sys_syslog,
[__NR_setitimer] sys_setitimer,
[__NR_getitimer] sys_getitimer,
[__NR_stat] sys_newstat,
[__NR_lstat] sys_newlstat,
[__NR_fstat] sys_newfstat,
[__NR_olduname] sys_ni_syscall,
[__NR_iopl] sys_ni_syscall,
[__NR_vhangup] sys_vhangup,
[__NR_idle] sys_ni_syscall,
[__NR_vm86] sys_ni_syscall,
[__NR_wait4] sys_wait4,
[__NR_swapoff] sys_ni_syscall, /* sys_swapoff */
[__NR_sysinfo] sys_sysinfo,
[__NR_ipc] sys_ni_syscall, /* sys_ipc */
[__NR_fsync] sys_fsync,
[__NR_sigreturn] sys_ni_syscall,
[__NR_clone] sys_ni_syscall, /* ppc_clone */
[__NR_setdomainname] sys_setdomainname,
[__NR_uname] ppc_newuname,
[__NR_modify_ldt] sys_ni_syscall,
[__NR_adjtimex] sys_adjtimex,
[__NR_mprotect] sys_mprotect,
[__NR_sigprocmask] sys_ni_syscall,
[__NR_create_module] sys_ni_syscall,
[__NR_init_module] sys_ni_syscall, /* sys_init_module */
[__NR_delete_module] sys_ni_syscall, /* sys_delete_module */
[__NR_get_kernel_syms] sys_ni_syscall,
[__NR_quotactl] sys_ni_syscall, /* sys_quotactl */
[__NR_getpgid] sys_getpgid,
[__NR_fchdir] sys_fchdir,
[__NR_bdflush] sys_bdflush,
[__NR_sysfs] sys_ni_syscall, /* sys_sysfs */
[__NR_personality] ppc64_personality,
[__NR_afs_syscall] sys_ni_syscall,
[__NR_setfsuid] sys_setfsuid,
[__NR_setfsgid] sys_setfsgid,
[__NR__llseek] sys_llseek,
[__NR_getdents] sys_getdents,
[__NR__newselect] sys_select,
[__NR_flock] sys_flock,
[__NR_msync] sys_msync,
[__NR_readv] sys_readv,
[__NR_writev] sys_writev,
[__NR_getsid] sys_getsid,
[__NR_fdatasync] sys_fdatasync,
[__NR__sysctl] sys_ni_syscall, /* sys_sysctl */
[__NR_mlock] sys_mlock,
[__NR_munlock] sys_munlock,
[__NR_mlockall] sys_mlockall,
[__NR_munlockall] sys_munlockall,
[__NR_sched_setparam] sys_sched_setparam,
[__NR_sched_getparam] sys_sched_getparam,
[__NR_sched_setscheduler] sys_sched_setscheduler,
[__NR_sched_getscheduler] sys_sched_getscheduler,
[__NR_sched_yield] sys_sched_yield,
[__NR_sched_get_priority_max] sys_sched_get_priority_max,
[__NR_sched_get_priority_min] sys_sched_get_priority_min,
[__NR_sched_rr_get_interval] sys_sched_rr_get_interval,
[__NR_nanosleep] sys_nanosleep,
[__NR_mremap] sys_mremap,
[__NR_setresuid] sys_setresuid,
[__NR_getresuid] sys_getresuid,
[__NR_query_module] sys_ni_syscall,
[__NR_poll] sys_poll,
[__NR_nfsservctl] sys_ni_syscall, /* sys_nfsservctl */
[__NR_setresgid] sys_setresgid,
[__NR_getresgid] sys_getresgid,
[__NR_prctl] sys_prctl,
[__NR_rt_sigreturn] sys_ni_syscall, /* ppc64_rt_sigreturn */
[__NR_rt_sigaction] sys_ni_syscall, /* sys_rt_sigaction */
[__NR_rt_sigprocmask] sys_ni_syscall, /* sys_rt_sigprocmask */
[__NR_rt_sigpending] sys_ni_syscall, /* sys_rt_sigpending */
[__NR_rt_sigtimedwait] sys_ni_syscall, /* sys_rt_sigtimedwait */
[__NR_rt_sigqueueinfo] sys_ni_syscall, /* sys_rt_sigqueueinfo */
[__NR_rt_sigsuspend] sys_ni_syscall, /* sys_rt_sigsuspend */
[__NR_pread64] sys_pread64,
[__NR_pwrite64] sys_pwrite64,
[__NR_chown] sys_chown,
[__NR_getcwd] sys_getcwd,
[__NR_capget] sys_capget,
[__NR_capset] sys_capset,
[__NR_sigaltstack] sys_ni_syscall, /* sys_sigaltstack */
[__NR_sendfile] sys_sendfile64,
[__NR_getpmsg] sys_ni_syscall,
[__NR_putpmsg] sys_ni_syscall,
[__NR_vfork] sys_ni_syscall, /* ppc_vfork */
[__NR_ugetrlimit] sys_getrlimit,
[__NR_readahead] sys_readahead,
[192] sys_ni_syscall,
[193] sys_ni_syscall,
[194] sys_ni_syscall,
[195] sys_ni_syscall,
[196] sys_ni_syscall,
[197] sys_ni_syscall,
[__NR_pciconfig_read] sys_ni_syscall, /* sys_pciconfig_read */
[__NR_pciconfig_write] sys_ni_syscall, /* sys_pciconfig_write */
[__NR_pciconfig_iobase] sys_ni_syscall, /* sys_pciconfig_iobase */
[__NR_multiplexer] sys_ni_syscall,
[__NR_getdents64] sys_getdents64,
[__NR_pivot_root] sys_pivot_root,
[204] sys_ni_syscall,
[__NR_madvise] sys_madvise,
[__NR_mincore] sys_mincore,
[__NR_gettid] sys_gettid,
[__NR_tkill] sys_tkill,
[__NR_setxattr] sys_setxattr,
[__NR_lsetxattr] sys_lsetxattr,
[__NR_fsetxattr] sys_fsetxattr,
[__NR_getxattr] sys_getxattr,
[__NR_lgetxattr] sys_lgetxattr,
[__NR_fgetxattr] sys_fgetxattr,
[__NR_listxattr] sys_listxattr,
[__NR_llistxattr] sys_llistxattr,
[__NR_flistxattr] sys_flistxattr,
[__NR_removexattr] sys_removexattr,
[__NR_lremovexattr] sys_lremovexattr,
[__NR_fremovexattr] sys_fremovexattr,
[__NR_futex] sys_futex,
[__NR_sched_setaffinity] sys_sched_setaffinity,
[__NR_sched_getaffinity] sys_sched_getaffinity,
[__NR_tuxcall] sys_ni_syscall,
[226] sys_ni_syscall,
[__NR_io_setup] sys_io_setup,
[__NR_io_destroy] sys_io_destroy,
[__NR_io_getevents] sys_io_getevents,
[__NR_io_submit] sys_io_submit,
[__NR_io_cancel] sys_io_cancel,
[__NR_set_tid_address] sys_ni_syscall, /* sys_set_tid_address */
[__NR_fadvise64] sys_fadvise64,
[__NR_exit_group] sys_ni_syscall, /* sys_exit_group */
[__NR_lookup_dcookie] sys_ni_syscall, /* sys_lookup_dcookie */
[__NR_epoll_create] sys_epoll_create,
[__NR_epoll_ctl] sys_epoll_ctl,
[__NR_epoll_wait] sys_epoll_wait,
[__NR_remap_file_pages] sys_remap_file_pages,
[__NR_timer_create] sys_timer_create,
[__NR_timer_settime] sys_timer_settime,
[__NR_timer_gettime] sys_timer_gettime,
[__NR_timer_getoverrun] sys_timer_getoverrun,
[__NR_timer_delete] sys_timer_delete,
[__NR_clock_settime] sys_clock_settime,
[__NR_clock_gettime] sys_clock_gettime,
[__NR_clock_getres] sys_clock_getres,
[__NR_clock_nanosleep] sys_clock_nanosleep,
[__NR_swapcontext] sys_ni_syscall, /* ppc64_swapcontext */
[__NR_tgkill] sys_tgkill,
[__NR_utimes] sys_utimes,
[__NR_statfs64] sys_statfs64,
[__NR_fstatfs64] sys_fstatfs64,
[254] sys_ni_syscall,
[__NR_rtas] ppc_rtas,
[256] sys_ni_syscall,
[257] sys_ni_syscall,
[258] sys_ni_syscall,
[__NR_mbind] sys_ni_syscall, /* sys_mbind */
[__NR_get_mempolicy] sys_ni_syscall, /* sys_get_mempolicy */
[__NR_set_mempolicy] sys_ni_syscall, /* sys_set_mempolicy */
[__NR_mq_open] sys_ni_syscall, /* sys_mq_open */
[__NR_mq_unlink] sys_ni_syscall, /* sys_mq_unlink */
[__NR_mq_timedsend] sys_ni_syscall, /* sys_mq_timedsend */
[__NR_mq_timedreceive] sys_ni_syscall, /* sys_mq_timedreceive */
[__NR_mq_notify] sys_ni_syscall, /* sys_mq_notify */
[__NR_mq_getsetattr] sys_ni_syscall, /* sys_mq_getsetattr */
[__NR_kexec_load] sys_ni_syscall, /* sys_kexec_load */
[__NR_add_key] sys_ni_syscall, /* sys_add_key */
[__NR_request_key] sys_ni_syscall, /* sys_request_key */
[__NR_keyctl] sys_ni_syscall, /* sys_keyctl */
[__NR_waitid] sys_ni_syscall, /* sys_waitid */
[__NR_ioprio_set] sys_ni_syscall, /* sys_ioprio_set */
[__NR_ioprio_get] sys_ni_syscall, /* sys_ioprio_get */
[__NR_inotify_init] sys_ni_syscall, /* sys_inotify_init */
[__NR_inotify_add_watch] sys_ni_syscall, /* sys_inotify_add_watch */
[__NR_inotify_rm_watch] sys_ni_syscall, /* sys_inotify_rm_watch */
[__NR_spu_run] sys_ni_syscall, /* sys_spu_run */
[__NR_spu_create] sys_ni_syscall, /* sys_spu_create */
[__NR_pselect6] sys_ni_syscall, /* sys_pselect */
[__NR_ppoll] sys_ni_syscall, /* sys_ppoll */
[__NR_unshare] sys_unshare,
[__NR_splice] sys_splice,
[__NR_tee] sys_tee,
[__NR_vmsplice] sys_vmsplice,
};
long spu_sys_callback(struct spu_syscall_block *s)
{
long (*syscall)(u64 a1, u64 a2, u64 a3, u64 a4, u64 a5, u64 a6);
syscall = spu_syscall_table[s->nr_ret];
if (s->nr_ret >= ARRAY_SIZE(spu_syscall_table)) {
pr_debug("%s: invalid syscall #%ld", __FUNCTION__, s->nr_ret);
return -ENOSYS;
}
#ifdef DEBUG
print_symbol(KERN_DEBUG "SPU-syscall %s:", (unsigned long)syscall);
printk("syscall%ld(%lx, %lx, %lx, %lx, %lx, %lx)\n",
s->nr_ret,
s->parm[0], s->parm[1], s->parm[2],
s->parm[3], s->parm[4], s->parm[5]);
#endif
return syscall(s->parm[0], s->parm[1], s->parm[2],
s->parm[3], s->parm[4], s->parm[5]);
}
EXPORT_SYMBOL_GPL(spu_sys_callback);
