1 files changed, 16 insertions, 7 deletions

diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 85f84e13d2dd..9a2a71669c5d 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -514,6 +514,8 @@ static void __cpuinit early_init_amd(struct cpuinfo_x86 *c)
 }
 
 static const int amd_erratum_383[];
+static const int amd_erratum_400[];
+static bool cpu_has_amd_erratum(const int *erratum);
 
 static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 {
@@ -734,6 +736,9 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
                         set_cpu_bug(c, X86_BUG_AMD_TLB_MMATCH);
         }
 
+        if (cpu_has_amd_erratum(amd_erratum_400))
+                set_cpu_bug(c, X86_BUG_AMD_APIC_C1E);
+
         rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy);
 }
 
@@ -852,8 +857,7 @@ cpu_dev_register(amd_cpu_dev);
  * AMD_OSVW_ERRATUM() macros. The latter is intended for newer errata that
  * have an OSVW id assigned, which it takes as first argument. Both take a
  * variable number of family-specific model-stepping ranges created by
- * AMD_MODEL_RANGE(). Each erratum also has to be declared as extern const
- * int[] in arch/x86/include/asm/processor.h.
+ * AMD_MODEL_RANGE().
  *
  * Example:
  *
@@ -863,15 +867,22 @@ cpu_dev_register(amd_cpu_dev);
  *                         AMD_MODEL_RANGE(0x10, 0x9, 0x0, 0x9, 0x0));
  */
 
-const int amd_erratum_400[] =
+#define AMD_LEGACY_ERRATUM(...)         { -1, __VA_ARGS__, 0 }
+#define AMD_OSVW_ERRATUM(osvw_id, ...)  { osvw_id, __VA_ARGS__, 0 }
+#define AMD_MODEL_RANGE(f, m_start, s_start, m_end, s_end) \
+        ((f << 24) | (m_start << 16) | (s_start << 12) | (m_end << 4) | (s_end))
+#define AMD_MODEL_RANGE_FAMILY(range)   (((range) >> 24) & 0xff)
+#define AMD_MODEL_RANGE_START(range)    (((range) >> 12) & 0xfff)
+#define AMD_MODEL_RANGE_END(range)      ((range) & 0xfff)
+
+static const int amd_erratum_400[] =
         AMD_OSVW_ERRATUM(1, AMD_MODEL_RANGE(0xf, 0x41, 0x2, 0xff, 0xf),
                             AMD_MODEL_RANGE(0x10, 0x2, 0x1, 0xff, 0xf));
-EXPORT_SYMBOL_GPL(amd_erratum_400);
 
 static const int amd_erratum_383[] =
         AMD_OSVW_ERRATUM(3, AMD_MODEL_RANGE(0x10, 0, 0, 0xff, 0xf));
 
-bool cpu_has_amd_erratum(const int *erratum)
+static bool cpu_has_amd_erratum(const int *erratum)
 {
         struct cpuinfo_x86 *cpu = __this_cpu_ptr(&cpu_info);
         int osvw_id = *erratum++;
@@ -912,5 +923,3 @@ bool cpu_has_amd_erratum(const int *erratum)
 
         return false;
 }
-
-EXPORT_SYMBOL_GPL(cpu_has_amd_erratum);