diff options
| -rw-r--r-- | kexec/arch/mips/crashdump-mips.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/kexec/arch/mips/crashdump-mips.c b/kexec/arch/mips/crashdump-mips.c index a1353865..56b8fe8b 100644 --- a/kexec/arch/mips/crashdump-mips.c +++ b/kexec/arch/mips/crashdump-mips.c @@ -243,6 +243,33 @@ static void ultoa(unsigned long i, char *str) } } +/* Adds the appropriate mem= options to command line, indicating the + * memory region the new kernel can use to boot into. */ +static int cmdline_add_mem(char *cmdline, unsigned long addr, + unsigned long size) +{ + int cmdlen, len; + char str[50], *ptr; + + addr = addr/1024; + size = size/1024; + ptr = str; + strcpy(str, " mem="); + ptr += strlen(str); + ultoa(size, ptr); + strcat(str, "K@"); + ptr = str + strlen(str); + ultoa(addr, ptr); + strcat(str, "K"); + len = strlen(str); + cmdlen = strlen(cmdline) + len; + if (cmdlen > (COMMAND_LINE_SIZE - 1)) + die("Command line overflow\n"); + strcat(cmdline, str); + + return 0; +} + /* Adds the elfcorehdr= command line parameter to command line. */ static int cmdline_add_elfcorehdr(char *cmdline, unsigned long addr) { @@ -373,6 +400,8 @@ int load_crashdump_segments(struct kexec_info *info, char* mod_cmdline, * backup segment is after elfcorehdr, so use elfcorehdr as top of * kernel's available memory */ + cmdline_add_mem(mod_cmdline, crash_reserved_mem.start, + crash_reserved_mem.end - crash_reserved_mem.start); cmdline_add_elfcorehdr(mod_cmdline, elfcorehdr); dbgprintf("CRASH MEMORY RANGES:\n"); |