diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index 61591bbef08dc..29cdcc70aa36b 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -3392,7 +3392,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     }
 
     boolean keyguardOn() {
-        return isKeyguardShowingAndNotOccluded();
+        return isKeyguardShowingAndNotOccluded() || inKeyguardRestrictedKeyInputMode();
     }
 
     private static final int[] WINDOW_TYPES_WHERE_HOME_DOESNT_WORK = {
@@ -6934,6 +6934,13 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         return mKeyguardOccluded;
     }
 
+    /** {@inheritDoc} */
+    @Override
+    public boolean inKeyguardRestrictedKeyInputMode() {
+        if (mKeyguardDelegate == null) return false;
+        return mKeyguardDelegate.isInputRestricted();
+    }
+
     @Override
     public void dismissKeyguardLw(IKeyguardDismissCallback callback) {
         if (mKeyguardDelegate != null && mKeyguardDelegate.isShowing()) {
diff --git a/services/core/java/com/android/server/policy/WindowManagerPolicy.java b/services/core/java/com/android/server/policy/WindowManagerPolicy.java
index bcb7212b620c7..cfe4088781b4f 100644
--- a/services/core/java/com/android/server/policy/WindowManagerPolicy.java
+++ b/services/core/java/com/android/server/policy/WindowManagerPolicy.java
@@ -1359,6 +1359,17 @@ public interface WindowManagerPolicy extends WindowManagerPolicyConstants {
      */
     public boolean isKeyguardTrustedLw();
 
+    /**
+     * inKeyguardRestrictedKeyInputMode
+     *
+     * If keyguard screen is showing or in restricted key input mode (i.e. in
+     * keyguard password emergency screen). When in such mode, certain keys,
+     * such as the Home key and the right soft keys, don't work.
+     *
+     * @return true if in keyguard restricted input mode.
+     */
+    public boolean inKeyguardRestrictedKeyInputMode();
+
     /**
      * Ask the policy to dismiss the keyguard, if it is currently shown.
      *
diff --git a/services/tests/servicestests/src/com/android/server/wm/TestWindowManagerPolicy.java b/services/tests/servicestests/src/com/android/server/wm/TestWindowManagerPolicy.java
index 481c898414ac5..c73534196f456 100644
--- a/services/tests/servicestests/src/com/android/server/wm/TestWindowManagerPolicy.java
+++ b/services/tests/servicestests/src/com/android/server/wm/TestWindowManagerPolicy.java
@@ -410,6 +410,11 @@ class TestWindowManagerPolicy implements WindowManagerPolicy {
         return false;
     }
 
+    @Override
+    public boolean inKeyguardRestrictedKeyInputMode() {
+        return false;
+    }
+
     @Override
     public void dismissKeyguardLw(@Nullable IKeyguardDismissCallback callback) {
     }