| /* |
| * 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, |
| [__NR_openat] sys_openat, |
| [__NR_mkdirat] sys_mkdirat, |
| [__NR_mknodat] sys_mknodat, |
| [__NR_fchownat] sys_fchownat, |
| [__NR_futimesat] sys_futimesat, |
| [__NR_newfstatat] sys_newfstatat, |
| [__NR_unlinkat] sys_unlinkat, |
| [__NR_renameat] sys_renameat, |
| [__NR_linkat] sys_linkat, |
| [__NR_symlinkat] sys_symlinkat, |
| [__NR_readlinkat] sys_readlinkat, |
| [__NR_fchmodat] sys_fchmodat, |
| [__NR_faccessat] sys_faccessat, |
| }; |
| |
| 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); |
