diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 8ea6929..1107015 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -29,6 +29,16 @@
 
 static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
 {
+	u64 misc_enable;
+
+	/* If MSR_IA32_MISC_ENABLE exists, unmask CPUID levels if masked */
+	if (!rdmsrl_safe(MSR_IA32_MISC_ENABLE, &misc_enable)) {
+		if (misc_enable & (1 << 22)) {
+			misc_enable &= ~(1 << 22);
+			wrmsrl(MSR_IA32_MISC_ENABLE, misc_enable);
+		}
+	}
+
 	if ((c->x86 == 0xf && c->x86_model >= 0x03) ||
 		(c->x86 == 0x6 && c->x86_model >= 0x0e))
 		set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);