[PATCH RFC v4 net-next 04/26] bpf: enable bpf syscall on x64
From: Alexei Starovoitov <hidden>
Date: 2014-08-13 08:16:08
Also in:
linux-api, lkml
Subsystem:
abi/api, generic include/asm header files, the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Arnd Bergmann, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
done as separate commit to ease conflict resolution Signed-off-by: Alexei Starovoitov <redacted> --- arch/x86/syscalls/syscall_64.tbl | 1 + include/linux/syscalls.h | 3 ++- include/uapi/asm-generic/unistd.h | 4 +++- kernel/sys_ni.c | 3 +++ 4 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/arch/x86/syscalls/syscall_64.tbl b/arch/x86/syscalls/syscall_64.tbl
index 252c804bb1aa..1416e32f20f1 100644
--- a/arch/x86/syscalls/syscall_64.tbl
+++ b/arch/x86/syscalls/syscall_64.tbl@@ -325,6 +325,7 @@ 316 common renameat2 sys_renameat2 317 common seccomp sys_seccomp 318 common getrandom sys_getrandom +319 common bpf sys_bpf # # x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 701daff5d899..cc2e197e0875 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h@@ -870,5 +870,6 @@ asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, const char __user *uargs); asmlinkage long sys_getrandom(char __user *buf, size_t count, unsigned int flags); - +asmlinkage long sys_bpf(int cmd, unsigned long arg2, unsigned long arg3, + unsigned long arg4, unsigned long arg5); #endif
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index f1afd607f043..3b625b281804 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h@@ -703,9 +703,11 @@ __SYSCALL(__NR_renameat2, sys_renameat2) __SYSCALL(__NR_seccomp, sys_seccomp) #define __NR_getrandom 278 __SYSCALL(__NR_getrandom, sys_getrandom) +#define __NR_bpf 279 +__SYSCALL(__NR_bpf, sys_bpf) #undef __NR_syscalls -#define __NR_syscalls 279 +#define __NR_syscalls 280 /* * All syscalls below here should go away really,
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 2904a2105914..d67ab4e618f7 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c@@ -216,3 +216,6 @@ cond_syscall(sys_kcmp); /* operate on Secure Computing state */ cond_syscall(sys_seccomp); + +/* access BPF programs and maps */ +cond_syscall(sys_bpf);
--
1.7.9.5