Ignore home support for auto-mirror virtual displays

Test: atest VirtualDeviceHomeTest
Fixes: 318016676
Change-Id: I618491076e08da22607541e8072e6a4949c2116d

2 files changed, 9 insertions, 2 deletions

diff --git a/core/java/android/hardware/display/VirtualDisplayConfig.java b/core/java/android/hardware/display/VirtualDisplayConfig.java
index 9e09759a4282..56f69a67c0b5 100644
--- a/core/java/android/hardware/display/VirtualDisplayConfig.java
+++ b/core/java/android/hardware/display/VirtualDisplayConfig.java
@@ -450,11 +450,14 @@ public final class VirtualDisplayConfig implements Parcelable {
          * automatically launched upon the display creation. If unset or set to {@code false}, the
          * display will not host any activities upon creation.</p>
          *
-         * <p>Note: setting to {@code true} requires the display to be trusted. If the display is
-         * not trusted, this property is ignored.</p>
+         * <p>Note: setting to {@code true} requires the display to be trusted and to not mirror
+         * content of other displays. If the display is not trusted, or if it mirrors content of
+         * other displays, this property is ignored.</p>
          *
          * @param isHomeSupported whether home activities are supported on the display
          * @see DisplayManager#VIRTUAL_DISPLAY_FLAG_TRUSTED
+         * @see DisplayManager#VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR
+         * @see DisplayManager#VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY
          * @hide
          */
         @FlaggedApi(android.companion.virtual.flags.Flags.FLAG_VDM_CUSTOM_HOME)
diff --git a/services/core/java/com/android/server/display/DisplayManagerService.java b/services/core/java/com/android/server/display/DisplayManagerService.java
index bc3f9dd3cb8c..fbac924be283 100644
--- a/services/core/java/com/android/server/display/DisplayManagerService.java
+++ b/services/core/java/com/android/server/display/DisplayManagerService.java
@@ -1615,6 +1615,10 @@ public final class DisplayManagerService extends SystemService {
                 if ((flags & VIRTUAL_DISPLAY_FLAG_TRUSTED) == 0) {
                     Slog.w(TAG, "Display created with home support but lacks "
                             + "VIRTUAL_DISPLAY_FLAG_TRUSTED, ignoring the home support request.");
+                } else if ((flags & VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR) != 0) {
+                    Slog.w(TAG, "Display created with home support but has "
+                            + "VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR, ignoring the home support "
+                            + "request.");
                 } else {
                     mWindowManagerInternal.setHomeSupportedOnDisplay(displayUniqueId,
                             Display.TYPE_VIRTUAL, true);