1 files changed, 8 insertions, 1 deletions

diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index da2401a4b0f4..a4c4ff9b27e4 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -79,8 +79,15 @@ static void probe_xeon_phi_r3mwait(struct cpuinfo_x86 *c)
          * Ring 3 MONITOR/MWAIT feature cannot be detected without
          * cpu model and family comparison.
          */
-        if (c->x86 != 6 || c->x86_model != INTEL_FAM6_XEON_PHI_KNL)
+        if (c->x86 != 6)
                 return;
+        switch (c->x86_model) {
+        case INTEL_FAM6_XEON_PHI_KNL:
+        case INTEL_FAM6_XEON_PHI_KNM:
+                break;
+        default:
+                return;
+        }
 
         if (ring3mwait_disabled) {
                 msr_clear_bit(MSR_MISC_FEATURE_ENABLES,