Merge branch 'x86/x2apic' into x86/core

Conflicts:
	arch/x86/kernel/cpu/common_64.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 10 insertions, 3 deletions

diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index c5ac08124adc..959417b8cd64 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -176,9 +176,16 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 	if (p)
 		strcpy(c->x86_model_id, p);
 
-	c->x86_max_cores = num_cpu_cores(c);
-
-	detect_ht(c);
+	detect_extended_topology(c);
+
+	if (!cpu_has(c, X86_FEATURE_XTOPOLOGY)) {
+		/*
+		 * let's use the legacy cpuid vector 0x1 and 0x4 for topology
+		 * detection.
+		 */
+		c->x86_max_cores = num_cpu_cores(c);
+		detect_ht(c);
+	}
 
 	/* Work around errata */
 	Intel_errata_workarounds(c);