fast-reboot: don't back up old vectors upon fast reboot
Initial boot already saved original exception vectors to old_vectors,
copying again upon fast reboot will overwrite old_vectors with some
arbitrary vectors set up by the current OS.
@@ -859,11 +859,6 @@ void copy_sreset_vector_fast_reboot(void)
void copy_exception_vectors(void)
{
- /* Backup previous vectors as this could contain a kernel
- * image.
- */
- memcpy_null(old_vectors, NULL, EXCEPTION_VECTORS_END);
-
/* Copy from 0x100 to EXCEPTION_VECTORS_END, avoid below 0x100 as
* this is the boot flag used by CPUs still potentially entering
* skiboot.
@@ -1021,6 +1016,11 @@ void __noreturn __nomcount main_cpu_entry(const void *fdt)
*/
clear_console();
+ /* Backup previous vectors as this could contain a kernel
+ * image.
+ */
+ memcpy_null(old_vectors, NULL, EXCEPTION_VECTORS_END);
+
/*
* Some boot firmwares enter OPAL with MSR[ME]=1, as they presumably
* handle machine checks until we take over. As we overwrite the
