crash_dump.c File Reference

#include <linux/crash_dump.h>
#include <linux/bootmem.h>
#include <linux/memblock.h>
#include <asm/code-patching.h>
#include <asm/kdump.h>
#include <asm/prom.h>
#include <asm/firmware.h>
#include <asm/uaccess.h>
#include <asm/rtas.h>

Go to the source code of this file.

Macros
#define	DBG(fmt...)

Functions
void __init	reserve_kdump_trampoline (void)
void __init	setup_kdump_trampoline (void)
	__setup ("savemaxmem=", parse_savemaxmem)
ssize_t	copy_oldmem_page (unsigned long pfn, char *buf, size_t csize, unsigned long offset, int userbuf)

Macro Definition Documentation

#define DBG

(

fmt...

)

Definition at line 28 of file crash_dump.c.

Function Documentation

__setup

(

)

ssize_t copy_oldmem_page	(	unsigned long	pfn,
		char *	buf,
		size_t	csize,
		unsigned long	offset,
		int	userbuf
	)

copy_oldmem_page - copy one page from "oldmem" : page frame number to be copied : target memory address for the copy; this can be in kernel address space or user address space (see ) : number of bytes to copy : offset in bytes into the page (based on pfn) to begin the copy : if set, is in user address space, use copy_to_user(), otherwise is in kernel address space, use memcpy().

Copy a page from "oldmem". For this page, there is no pte mapped in the current kernel. We stitch up a pte, similar to kmap_atomic.

Definition at line 107 of file crash_dump.c.

void __init reserve_kdump_trampoline

(

void

)

Definition at line 32 of file crash_dump.c.

void __init setup_kdump_trampoline

(

void

)

Definition at line 53 of file crash_dump.c.