1 files changed, 13 insertions, 11 deletions

diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index ed6086eedf1d..523131213f08 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -47,6 +47,15 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
                 (c->x86 == 0x6 && c->x86_model >= 0x0e))
                 set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
 
+        if (c->x86 >= 6 && !cpu_has(c, X86_FEATURE_IA64)) {
+                unsigned lower_word;
+
+                wrmsr(MSR_IA32_UCODE_REV, 0, 0);
+                /* Required by the SDM */
+                sync_core();
+                rdmsr(MSR_IA32_UCODE_REV, lower_word, c->microcode);
+        }
+
         /*
          * Atom erratum AAE44/AAF40/AAG38/AAH41:
          *
@@ -55,17 +64,10 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
          * need the microcode to have already been loaded... so if it is
          * not, recommend a BIOS update and disable large pages.
          */
-        if (c->x86 == 6 && c->x86_model == 0x1c && c->x86_mask <= 2) {
-                u32 ucode, junk;
-
-                wrmsr(MSR_IA32_UCODE_REV, 0, 0);
-                sync_core();
-                rdmsr(MSR_IA32_UCODE_REV, junk, ucode);
-
-                if (ucode < 0x20e) {
-                        printk(KERN_WARNING "Atom PSE erratum detected, BIOS microcode update recommended\n");
-                        clear_cpu_cap(c, X86_FEATURE_PSE);
-                }
+        if (c->x86 == 6 && c->x86_model == 0x1c && c->x86_mask <= 2 &&
+            c->microcode < 0x20e) {
+                printk(KERN_WARNING "Atom PSE erratum detected, BIOS microcode update recommended\n");
+                clear_cpu_cap(c, X86_FEATURE_PSE);
         }
 
 #ifdef CONFIG_X86_64