1 files changed, 8 insertions, 2 deletions

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 50c5210fbc64..863c8d08c026 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -41,6 +41,7 @@
 #include <linux/ctype.h>
 #include <linux/reboot.h>
 
+#include <asm/ipl.h>
 #include <asm/uaccess.h>
 #include <asm/system.h>
 #include <asm/smp.h>
@@ -106,7 +107,7 @@ void __devinit cpu_init (void)
         /*
          * Store processor id in lowcore (used e.g. in timer_interrupt)
          */
-        asm volatile("stidp %0": "=m" (S390_lowcore.cpu_data.cpu_id));
+        get_cpu_id(&S390_lowcore.cpu_data.cpu_id);
         S390_lowcore.cpu_data.cpu_addr = addr;
 
         /*
@@ -689,9 +690,14 @@ setup_memory(void)
         psw_set_key(PAGE_DEFAULT_KEY);
 
         free_bootmem_with_active_regions(0, max_pfn);
-        reserve_bootmem(0, PFN_PHYS(start_pfn));
 
         /*
+         * Reserve memory used for lowcore/command line/kernel image.
+         */
+        reserve_bootmem(0, (unsigned long)_ehead);
+        reserve_bootmem((unsigned long)_stext,
+                        PFN_PHYS(start_pfn) - (unsigned long)_stext);
+        /*
          * Reserve the bootmem bitmap itself as well. We do this in two
          * steps (first step was init_bootmem()) because this catches
          * the (very unlikely) case of us accidentally initializing the