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x86, reboot: Move the real-mode reboot code to an assembly file

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Move the real-mode reboot code out to an assembly file (reboot_32.S)
which is allocated using the common lowmem trampoline allocator.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
LKML-Reference: <4D5DFBE4.7090104@intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Matthieu Castet <castet.matthieu@free.fr>
This commit is contained in:
H. Peter Anvin
2011-02-14 18:36:03 -08:00
parent 014eea518a
commit 3d35ac346e
5 changed files with 160 additions and 105 deletions
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5
arch/x86/include/asm/reboot.h
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@@ -18,7 +18,10 @@ extern struct machine_ops machine_ops;
void native_machine_crash_shutdown(struct pt_regs *regs);
void native_machine_shutdown(void);
void machine_real_restart(const unsigned char *code, int length);
void machine_real_restart(unsigned int type);
/* These must match dispatch_table in reboot_32.S */
#define MRR_BIOS 0
#define MRR_APM 1
typedef void (*nmi_shootdown_cb)(int, struct die_args*);
void nmi_shootdown_cpus(nmi_shootdown_cb callback);