From f0895685c7fd8c938c91a9d8a6f7c11f22df58d2 Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Fri, 8 Aug 2014 14:25:55 -0700 Subject: kexec: new syscall kexec_file_load() declaration This is the new syscall kexec_file_load() declaration/interface. I have reserved the syscall number only for x86_64 so far. Other architectures (including i386) can reserve syscall number when they enable the support for this new syscall. Signed-off-by: Vivek Goyal Cc: Michael Kerrisk Cc: Borislav Petkov Cc: Yinghai Lu Cc: Eric Biederman Cc: H. Peter Anvin Cc: Matthew Garrett Cc: Greg Kroah-Hartman Cc: Dave Young Cc: WANG Chao Cc: Baoquan He Cc: Andy Lutomirski Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/kexec.c | 7 +++++++ kernel/sys_ni.c | 1 + 2 files changed, 8 insertions(+) (limited to 'kernel') diff --git a/kernel/kexec.c b/kernel/kexec.c index bfdda31..ec4386c 100644 --- a/kernel/kexec.c +++ b/kernel/kexec.c @@ -1058,6 +1058,13 @@ COMPAT_SYSCALL_DEFINE4(kexec_load, compat_ulong_t, entry, } #endif +SYSCALL_DEFINE5(kexec_file_load, int, kernel_fd, int, initrd_fd, + unsigned long, cmdline_len, const char __user *, cmdline_ptr, + unsigned long, flags) +{ + return -ENOSYS; +} + void crash_kexec(struct pt_regs *regs) { /* Take the kexec_mutex here to prevent sys_kexec_load diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index 1f79e37..391d4dd 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -25,6 +25,7 @@ cond_syscall(sys_swapon); cond_syscall(sys_swapoff); cond_syscall(sys_kexec_load); cond_syscall(compat_sys_kexec_load); +cond_syscall(sys_kexec_file_load); cond_syscall(sys_init_module); cond_syscall(sys_finit_module); cond_syscall(sys_delete_module); -- cgit v1.1