diff options
| author | Zhang Yanfei <zhangyanfei@cn.fujitsu.com> | 2013-03-31 11:12:53 +0800 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2013-04-30 09:34:16 +0900 |
| commit | 1a4e90ba221684e563bf1baf06f3547cd95e60b0 (patch) | |
| tree | 42eb0b4c8754156cc797601699cf6c1ed8907c5f /kexec | |
| parent | e25e6e7593cae350ecaa3fcd6d20c7de87f4c309 (diff) | |
Revert "kexec: include reserved e820 sections in crash kernel"
This reverts commit e35aa29fb40b37bf86d980b2e19af5e01c2d2549.
This patch is based on the commit 49320340f705694e387d794f7f19d407ad9baefa
"kexec: lengthen the kernel command line image"
Since the latter commit has been reverted due to its useless, this
patch should be reverted too.
Besides, This patch also changed a kernel restriction of max segments
from 16 to 70. Though kexec-tools could have more segments, more than 16,
the kexec_load syscall will still fail for the kernel side has a restriction
of 16.
Cc: Cliff Wickman <cpw@sgi.com>
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'kexec')
| -rw-r--r-- | kexec/arch/i386/crashdump-x86.c | 31 | ||||
| -rw-r--r-- | kexec/kexec-syscall.h | 2 |
2 files changed, 3 insertions, 30 deletions
diff --git a/kexec/arch/i386/crashdump-x86.c b/kexec/arch/i386/crashdump-x86.c index 4167e5e..e44fceb 100644 --- a/kexec/arch/i386/crashdump-x86.c +++ b/kexec/arch/i386/crashdump-x86.c @@ -247,8 +247,6 @@ static int get_crash_memory_ranges(struct memory_range **range, int *ranges, type = RANGE_ACPI; } else if(memcmp(str,"ACPI Non-volatile Storage\n",26) == 0 ) { type = RANGE_ACPI_NVS; - } else if(memcmp(str,"reserved\n", 9) == 0 ) { - type = RANGE_RESERVED; } else if (memcmp(str, "GART\n", 5) == 0) { gart_start = start; gart_end = end; @@ -908,27 +906,6 @@ static void get_backup_area(struct kexec_info *info, info->backup_src_size = BACKUP_SRC_END - BACKUP_SRC_START + 1; } -/* Appends memmap=X$Y commandline for reserved memory to command line*/ -static int cmdline_add_memmap_reserved(char *cmdline, unsigned long start, - unsigned long end) -{ - int align = 1024; - unsigned long startk, endk; - - if (!(end - start)) - return 0; - - startk = start/1024; - endk = (end + align - 1)/1024; - cmdline_add_memmap_internal(cmdline, startk, endk, RANGE_RESERVED); - -#ifdef DEBUG - printf("Command line after adding reserved memmap\n"); - printf("%s\n", cmdline); -#endif - return 0; -} - /* Loads additional segments in case of a panic kernel is being loaded. * One segment for backup region, another segment for storing elf headers * for crash memory image. @@ -1076,15 +1053,11 @@ int load_crashdump_segments(struct kexec_info *info, char* mod_cmdline, for (i = 0; i < CRASH_MAX_MEMORY_RANGES; i++) { unsigned long start, end; if ( !( mem_range[i].type == RANGE_ACPI - || mem_range[i].type == RANGE_ACPI_NVS - || mem_range[i].type == RANGE_RESERVED) ) + || mem_range[i].type == RANGE_ACPI_NVS) ) continue; start = mem_range[i].start; end = mem_range[i].end; - if (mem_range[i].type == RANGE_RESERVED) - cmdline_add_memmap_reserved(mod_cmdline, start, end); - else - cmdline_add_memmap_acpi(mod_cmdline, start, end); + cmdline_add_memmap_acpi(mod_cmdline, start, end); } return 0; } diff --git a/kexec/kexec-syscall.h b/kexec/kexec-syscall.h index f5ee992..b56cb00 100644 --- a/kexec/kexec-syscall.h +++ b/kexec/kexec-syscall.h @@ -78,7 +78,7 @@ static inline long kexec_load(void *entry, unsigned long nr_segments, #define KEXEC_ARCH_MIPS ( 8 << 16) #define KEXEC_ARCH_CRIS (76 << 16) -#define KEXEC_MAX_SEGMENTS 70 +#define KEXEC_MAX_SEGMENTS 16 #ifdef __i386__ #define KEXEC_ARCH_NATIVE KEXEC_ARCH_386 |