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[PATCH] kexec: add kexec syscalls

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This patch introduces the architecture independent implementation the
sys_kexec_load, the compat_sys_kexec_load system calls.

Kexec on panic support has been integrated into the core patch and is
relatively clean.

In addition the hopefully architecture independent option
crashkernel=size@location has been docuemented.  It's purpose is to reserve
space for the panic kernel to live, and where no DMA transfer will ever be
setup to access.

Signed-off-by: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Alexander Nyberg <alexn@telia.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Eric W. Biederman 2005-06-25 14:57:52 -07:00 • committed by Linus Torvalds
parent d0537508a9
commit dc009d9243
10 changed files with 1227 additions and 4 deletions
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5
include/linux/syscalls.h
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@ -159,8 +159,9 @@ asmlinkage long sys_shutdown(int, int);
asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
void __user *arg);
asmlinkage long sys_restart_syscall(void);
asmlinkage long sys_kexec_load(void *entry, unsigned long nr_segments,
struct kexec_segment *segments, unsigned long flags);
asmlinkage long sys_kexec_load(unsigned long entry,
unsigned long nr_segments, struct kexec_segment __user *segments,
unsigned long flags);
asmlinkage long sys_exit(int error_code);
asmlinkage void sys_exit_group(int error_code);