mirror of
https://github.com/torvalds/linux.git
synced 2024-11-17 01:22:07 +00:00
ac630dd98a
The code requires the use of the proper per-exception-vector stub
functions (set up as the early_idt_handlers[] array - note the 's') that
make sure to set up the error vector number. This is true regardless of
whether CONFIG_EARLY_PRINTK is set or not.
Why? The stack offset for the comparison of __KERNEL_CS won't be right
otherwise, nor will the new check (from commit 8170e6bed4: "x86,
64bit: Use a #PF handler to materialize early mappings on demand") for
the page fault exception vector.
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
25 lines
478 B
C
25 lines
478 B
C
#ifndef _ASM_X86_PROTO_H
|
|
#define _ASM_X86_PROTO_H
|
|
|
|
#include <asm/ldt.h>
|
|
|
|
/* misc architecture specific prototypes */
|
|
|
|
void system_call(void);
|
|
void syscall_init(void);
|
|
|
|
void ia32_syscall(void);
|
|
void ia32_cstar_target(void);
|
|
void ia32_sysenter_target(void);
|
|
|
|
void syscall32_cpu_init(void);
|
|
|
|
void x86_configure_nx(void);
|
|
void x86_report_nx(void);
|
|
|
|
extern int reboot_force;
|
|
|
|
long do_arch_prctl(struct task_struct *task, int code, unsigned long addr);
|
|
|
|
#endif /* _ASM_X86_PROTO_H */
|