Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86

* ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86: (114 commits)
  x86: delete vsyscall files during make clean
  kbuild: fix typo SRCARCH in find_sources
  x86: fix kernel rebuild due to vsyscall fallout
  .gitignore update for x86 arch
  x86: unify include/asm/debugreg_32/64.h
  x86: unify include/asm/unwind_32/64.h
  x86: unify include/asm/types_32/64.h
  x86: unify include/asm/tlb_32/64.h
  x86: unify include/asm/siginfo_32/64.h
  x86: unify include/asm/bug_32/64.h
  x86: unify include/asm/mman_32/64.h
  x86: unify include/asm/agp_32/64.h
  x86: unify include/asm/kdebug_32/64.h
  x86: unify include/asm/ioctls_32/64.h
  x86: unify include/asm/floppy_32/64.h
  x86: apply missing DMA/OOM prevention to floppy_32.h
  x86: unify include/asm/cache_32/64.h
  x86: unify include/asm/cache_32/64.h
  x86: unify include/asm/dmi_32/64.h
  x86: unify include/asm/delay_32/64.h
  ...

1 files changed, 15 insertions, 2 deletions

diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index dc4e08147b..cc8c501b9f 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -8,6 +8,7 @@
 #include <linux/module.h>
 
 #include <asm/processor.h>
+#include <asm/pgtable.h>
 #include <asm/msr.h>
 #include <asm/uaccess.h>
 
@@ -19,8 +20,6 @@
 #include <mach_apic.h>
 #endif
 
-extern int trap_init_f00f_bug(void);
-
 #ifdef CONFIG_X86_INTEL_USERCOPY
 /*
  * Alignment at which movsl is preferred for bulk memory copies.
@@ -95,6 +94,20 @@ static int __cpuinit num_cpu_cores(struct cpuinfo_x86 *c)
                 return 1;
 }
 
+#ifdef CONFIG_X86_F00F_BUG
+static void __cpuinit trap_init_f00f_bug(void)
+{
+        __set_fixmap(FIX_F00F_IDT, __pa(&idt_table), PAGE_KERNEL_RO);
+
+        /*
+         * Update the IDT descriptor and reload the IDT so that
+         * it uses the read-only mapped virtual address.
+         */
+        idt_descr.address = fix_to_virt(FIX_F00F_IDT);
+        load_idt(&idt_descr);
+}
+#endif
+
 static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 {
         unsigned int l2 = 0;