x86-32, mm: Add an initial page table for core bootstrapping

[pandora-kernel.git] / arch / x86 / kernel / reboot.c

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index e3af342..f7f53dc 100644 (file)
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -84,7 +84,7 @@ static int __init reboot_setup(char *str)
                        }
                                /* we will leave sorting out the final value
                                   when we are ready to reboot, since we might not
-                                  have set up boot_cpu_id or smp_num_cpu */
+                                  have detected BSP APIC ID or smp_num_cpu */
                        break;
 #endif /* CONFIG_SMP */
 
@@ -371,16 +371,10 @@ void machine_real_restart(const unsigned char *code, int length)
        CMOS_WRITE(0x00, 0x8f);
        spin_unlock(&rtc_lock);
 
-       /* Remap the kernel at virtual address zero, as well as offset zero
-          from the kernel segment.  This assumes the kernel segment starts at
-          virtual address PAGE_OFFSET. */
-       memcpy(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY,
-               sizeof(swapper_pg_dir [0]) * KERNEL_PGD_PTRS);
-
        /*
-        * Use `swapper_pg_dir' as our page directory.
+        * Switch back to the initial page table.
         */
-       load_cr3(swapper_pg_dir);
+       load_cr3(initial_page_table);
 
        /* Write 0x1234 to absolute memory location 0x472.  The BIOS reads
           this on booting to tell it to "Bypass memory test (also warm