diff options
Diffstat (limited to 'kexec/kexec.c')
| -rw-r--r-- | kexec/kexec.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/kexec/kexec.c b/kexec/kexec.c index 29fa5fa..32ae56c 100644 --- a/kexec/kexec.c +++ b/kexec/kexec.c @@ -648,6 +648,15 @@ static void update_purgatory(struct kexec_info *info) return; } arch_update_purgatory(info); + + if (info->skip_checks) { + unsigned int tmp = 1; + + elf_rel_set_symbol(&info->rhdr, "skip_checks", &tmp, + sizeof(tmp)); + return; + } + memset(region, 0, sizeof(region)); sha256_starts(&ctx); /* Compute a hash of the loaded kernel */ @@ -687,7 +696,7 @@ static void update_purgatory(struct kexec_info *info) * Load the new kernel */ static int my_load(const char *type, int fileind, int argc, char **argv, - unsigned long kexec_flags, void *entry) + unsigned long kexec_flags, int skip_checks, void *entry) { char *kernel; char *kernel_buf; @@ -700,6 +709,7 @@ static int my_load(const char *type, int fileind, int argc, char **argv, memset(&info, 0, sizeof(info)); info.kexec_flags = kexec_flags; + info.skip_checks = skip_checks; result = 0; if (argc - fileind <= 0) { @@ -981,6 +991,7 @@ void usage(void) " -v, --version Print the version of kexec.\n" " -f, --force Force an immediate kexec,\n" " don't call shutdown.\n" + " -i, --no-checks Fast reboot, no memory integrity checks.\n" " -x, --no-ifdown Don't bring down network interfaces.\n" " -y, --no-sync Don't sync filesystems before kexec.\n" " -l, --load Load the new kernel into the\n" @@ -1251,6 +1262,7 @@ int main(int argc, char *argv[]) int do_reuse_initrd = 0; int do_kexec_file_syscall = 0; int do_kexec_fallback = 0; + int skip_checks = 0; int do_status = 0; void *entry = 0; char *type = 0; @@ -1386,6 +1398,9 @@ int main(int argc, char *argv[]) do_kexec_file_syscall = 1; do_kexec_fallback = 1; break; + case OPT_NOCHECKS: + skip_checks = 1; + break; case OPT_STATUS: do_status = 1; break; @@ -1520,7 +1535,7 @@ int main(int argc, char *argv[]) } if (!do_kexec_file_syscall) result = my_load(type, fileind, argc, argv, - kexec_flags, entry); + kexec_flags, skip_checks, entry); } /* Don't shutdown unless there is something to reboot to! */ if ((result == 0) && (do_shutdown || do_exec) && !kexec_loaded(KEXEC_LOADED_PATH)) { |