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| author | Eric W. Biederman <ebiederm@xmission.com> | 2005-06-25 14:57:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-25 16:24:49 -0700 |
| commit | 5033cba087f6ac773002123aafbea1aad4267682 (patch) | |
| tree | fa0301c28c004e81d3aad597f23ea2407db8396c /include/asm-i386 | |
| parent | dd2a13054ffc25783a74afb5e4a0f2115e45f9cd (diff) | |
| download | linux-5033cba087f6ac773002123aafbea1aad4267682.tar.gz linux-5033cba087f6ac773002123aafbea1aad4267682.tar.bz2 linux-5033cba087f6ac773002123aafbea1aad4267682.zip | |
[PATCH] kexec: x86 kexec core
This is the i386 implementation of kexec.
Signed-off-by: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-i386')
| -rw-r--r-- | include/asm-i386/kexec.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/asm-i386/kexec.h b/include/asm-i386/kexec.h new file mode 100644 index 000000000000..a1599b55d62d --- /dev/null +++ b/include/asm-i386/kexec.h @@ -0,0 +1,28 @@ +#ifndef _I386_KEXEC_H +#define _I386_KEXEC_H + +#include <asm/fixmap.h> + +/* + * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. + * I.e. Maximum page that is mapped directly into kernel memory, + * and kmap is not required. + * + * Someone correct me if FIXADDR_START - PAGEOFFSET is not the correct + * calculation for the amount of memory directly mappable into the + * kernel memory space. + */ + +/* Maximum physical address we can use pages from */ +#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) +/* Maximum address we can reach in physical address mode */ +#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) +/* Maximum address we can use for the control code buffer */ +#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE + +#define KEXEC_CONTROL_CODE_SIZE 4096 + +/* The native architecture */ +#define KEXEC_ARCH KEXEC_ARCH_386 + +#endif /* _I386_KEXEC_H */ |