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diff --git a/include/exec/page-vary.h b/include/exec/page-vary.h
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+/*
+ * Definitions for cpus with variable page sizes.
+ *
+ *  Copyright (c) 2003 Fabrice Bellard
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef EXEC_PAGE_VARY_H
+#define EXEC_PAGE_VARY_H
+
+typedef struct {
+    bool decided;
+    int bits;
+    uint64_t mask;
+} TargetPageBits;
+
+#endif /* EXEC_PAGE_VARY_H */