diff options
| author | Suzuki K. Poulose <suzuki@in.ibm.com> | 2011-10-03 15:48:12 +0530 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2011-10-21 16:46:21 +0900 |
| commit | 90da2c3735b9ee4ddc80257c6036816bd570dcc8 (patch) | |
| tree | 5a8e668d4e9e2b0d630ea948426f7a017a2d1f5e /kexec/arch/ppc/crashdump-powerpc.h | |
| parent | ec4d31441ed4ea6ab320b63cc1472eda46e70ca2 (diff) | |
kexec: powerpc: crash_dump: No backup region for PPC BookE
Disable backup regions for BookE in case of a CRASH Dump, as they can
be run from anywhere.
The patch introduces --with-booke option to support the BookE.
With the patch, we get :
## On a 256M machine:
# busybox cat /proc/cmdline
init=/bin/init console=ttyS0,16550 crashkernel=128M@100M
# kexec -p root/vmlinux
usable memory rgns size:1 base:6400000 size:8000000
CRASH MEMORY RANGES
0000000000000000-0000000006400000
000000000e400000-0000000010000000
Command line after adding elfcorehdr: elfcorehdr=112380K
Command line after adding elfcorehdr: elfcorehdr=112380K savemaxmem=256M
Signed-off-by: Suzuki K. Poulose<suzuki@in.ibm.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'kexec/arch/ppc/crashdump-powerpc.h')
| -rw-r--r-- | kexec/arch/ppc/crashdump-powerpc.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/kexec/arch/ppc/crashdump-powerpc.h b/kexec/arch/ppc/crashdump-powerpc.h index dc2772d..a377146 100644 --- a/kexec/arch/ppc/crashdump-powerpc.h +++ b/kexec/arch/ppc/crashdump-powerpc.h @@ -21,10 +21,18 @@ extern struct arch_options_t arch_options; #define __pa(x) ((unsigned long)(x)-PAGE_OFFSET) #define COMMAND_LINE_SIZE 512 /* from kernel */ + +#ifdef CONFIG_BOOKE +/* We don't need backup region in Book E */ +#define BACKUP_SRC_START 0x0000 +#define BACKUP_SRC_END 0x0000 +#define BACKUP_SRC_SIZE 0x0000 +#else /* Backup Region, First 64K of System RAM. */ #define BACKUP_SRC_START 0x0000 #define BACKUP_SRC_END 0xffff #define BACKUP_SRC_SIZE (BACKUP_SRC_END - BACKUP_SRC_START + 1) +#endif #define KDUMP_BACKUP_LIMIT BACKUP_SRC_SIZE #define _ALIGN_UP(addr, size) (((addr)+((size)-1))&(~((size)-1))) |