diff options
Diffstat (limited to 'kexec/arch/i386/kexec-elf-x86.c')
| -rw-r--r-- | kexec/arch/i386/kexec-elf-x86.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/kexec/arch/i386/kexec-elf-x86.c b/kexec/arch/i386/kexec-elf-x86.c index 7d1e7f9..808fa75 100644 --- a/kexec/arch/i386/kexec-elf-x86.c +++ b/kexec/arch/i386/kexec-elf-x86.c @@ -32,10 +32,12 @@ #include <elf.h> #include <x86/x86-linux.h> #include "../../kexec.h" +#include "../../kexec-syscall.h" #include "../../kexec-elf.h" #include "../../kexec-elf-boot.h" #include "x86-linux-setup.h" #include "kexec-x86.h" +#include "crashdump-x86.h" #include <arch/options.h> static const int probe_debug = 0; @@ -220,6 +222,21 @@ int elf_x86_load(int argc, char **argv, const char *buf, off_t len, ramdisk_buf = slurp_file(ramdisk, &ramdisk_length); } + /* If panic kernel is being loaded, additional segments need + * to be created. */ + if (info->kexec_flags & KEXEC_ON_CRASH) { + void *tmp; + unsigned long sz; + int nr_ranges, align = 1024; + /* Create a backup region segment to store first 640K + * memory*/ + sz = (BACKUP_SIZE + align - 1) & ~(align - 1); + tmp = xmalloc(sz); + memset(tmp, 0, sz); + info->backup_start = add_buffer(info, tmp, sz, sz, 1024, + 0, max_addr, 1); + } + /* Tell the kernel what is going on */ setup_linux_bootloader_parameters(info, &hdr->hdr, param_base, offsetof(struct x86_linux_faked_param_header, command_line), @@ -227,7 +244,7 @@ int elf_x86_load(int argc, char **argv, const char *buf, off_t len, ramdisk_buf, ramdisk_length); /* Fill in the information bios calls would usually provide */ - setup_linux_system_parameters(&hdr->hdr); + setup_linux_system_parameters(&hdr->hdr, info->kexec_flags); /* Initialize the registers */ elf_rel_get_symbol(&info->rhdr, "entry32_regs", ®s, sizeof(regs)); |