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Use extended crashkernel command line on x86_64

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This patch removes the crashkernel parsing from
arch/x86_64/kernel/machine_kexec.c and calls the generic function, introduced
in the last patch, in setup_bootmem_allocator().

This is necessary because the amount of System RAM must be known in this
function now because of the new syntax.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Bernhard Walle
2007-10-18 23:40:59 -07:00
committed by Linus Torvalds
parent d62cc47163
commit 5c3391f9f7
3 changed files with 34 additions and 35 deletions
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27
arch/x86/kernel/machine_kexec_64.c
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@@ -231,33 +231,6 @@ NORET_TYPE void machine_kexec(struct kimage *image)
image->start);
}
/* crashkernel=size@addr specifies the location to reserve for
* a crash kernel. By reserving this memory we guarantee
* that linux never set's it up as a DMA target.
* Useful for holding code to do something appropriate
* after a kernel panic.
*/
static int __init setup_crashkernel(char *arg)
{
unsigned long size, base;
char *p;
if (!arg)
return -EINVAL;
size = memparse(arg, &p);
if (arg == p)
return -EINVAL;
if (*p == '@') {
base = memparse(p+1, &p);
/* FIXME: Do I want a sanity check to validate the
* memory range? Yes you do, but it's too early for
* e820 -AK */
crashk_res.start = base;
crashk_res.end = base + size - 1;
}
return 0;
}
early_param("crashkernel", setup_crashkernel);
void arch_crash_save_vmcoreinfo(void)
{
#ifdef CONFIG_ARCH_DISCONTIGMEM_ENABLE