diff options
Diffstat (limited to 'kexec/arch/i386/crashdump-x86.c')
| -rw-r--r-- | kexec/arch/i386/crashdump-x86.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/kexec/arch/i386/crashdump-x86.c b/kexec/arch/i386/crashdump-x86.c index 8ef0c8b..77bdad5 100644 --- a/kexec/arch/i386/crashdump-x86.c +++ b/kexec/arch/i386/crashdump-x86.c @@ -34,6 +34,7 @@ #include <sys/types.h> #include <sys/stat.h> #include <unistd.h> +#include <dirent.h> #include "../../kexec.h" #include "../../kexec-elf.h" #include "../../kexec-syscall.h" @@ -780,6 +781,18 @@ static enum coretype get_core_type(struct crash_elf_info *elf_info, } } +static int sysfs_efi_runtime_map_exist(void) +{ + DIR *dir; + + dir = opendir("/sys/firmware/efi/runtime-map"); + if (!dir) + return 0; + + closedir(dir); + return 1; +} + /* Appends 'acpi_rsdp=' commandline for efi boot crash dump */ static void cmdline_add_efi(char *cmdline) { @@ -974,7 +987,8 @@ int load_crashdump_segments(struct kexec_info *info, char* mod_cmdline, dbgprintf("Created elf header segment at 0x%lx\n", elfcorehdr); if (delete_memmap(memmap_p, &nr_memmap, elfcorehdr, memsz) < 0) return -1; - if (!bzImage_support_efi_boot || arch_options.noefi) + if (!bzImage_support_efi_boot || arch_options.noefi || + !sysfs_efi_runtime_map_exist()) cmdline_add_efi(mod_cmdline); cmdline_add_elfcorehdr(mod_cmdline, elfcorehdr); |