Index: linux-2.6.16-rc1-mm3/mm/page_alloc.c
===================================================================
--- linux-2.6.16-rc1-mm3.orig/mm/page_alloc.c	2006-01-27 14:46:22.000000000 -0800
+++ linux-2.6.16-rc1-mm3/mm/page_alloc.c	2006-01-27 14:51:09.000000000 -0800
@@ -85,6 +85,45 @@ unsigned int sysctl_scrub_limit __read_m
 	((z)->zeroed_pages < (z)->free_pages * sysctl_scrub_limit >> 10)
 
 static void zero_page(struct page *page, struct zone *zone, int order);
+
+/*
+ * Hardware zeroing drivers
+ */
+static LIST_HEAD(zero_drivers);
+
+/* Registering and unregistering zero drivers */
+void register_zero_driver(struct zero_driver *z)
+{
+	list_add(&z->list, &zero_drivers);
+}
+
+void unregister_zero_driver(struct zero_driver *z)
+{
+	list_del(&z->list);
+}
+
+/*
+ * Overwrite page with zeroes using hardware support
+ */
+static int __zero_page(struct page *page, int order)
+{
+	struct list_head *l;
+
+        list_for_each(l, &zero_drivers) {
+                struct zero_driver *driver = container_of(l, struct zero_driver, list);
+
+                if (driver->zero_func(page_address(page), PAGE_SIZE << order) == 0)
+                        return 1;
+        }
+
+	/*
+	 * No zeroeing device
+	 */
+	return 0;
+}
+
+#else
+#define __zero_page(page, order) 0
 #endif
 
 EXPORT_SYMBOL(totalram_pages);
@@ -862,11 +901,13 @@ static inline void prep_zero_page(struct
 }
 
 /*
- * Zero a page and prep for reintegration to free lists.
+ * Zero a page (if possible using hardware zeroing support) and prep for
+ * reintegration to free lists.
  */
 static void zero_page(struct page *page, struct zone *zone, int order)
 {
-	prep_zero_page(page, order, 0);
+	if (!__zero_page(page, order))
+		prep_zero_page(page, order, 0);
 	__SetPageZeroed(page);
 	zone->zeroed_pages += 1 << order;
 }
Index: linux-2.6.16-rc1-mm3/include/linux/gfp.h
===================================================================
--- linux-2.6.16-rc1-mm3.orig/include/linux/gfp.h	2006-01-16 23:44:47.000000000 -0800
+++ linux-2.6.16-rc1-mm3/include/linux/gfp.h	2006-01-27 14:49:22.000000000 -0800
@@ -162,4 +162,13 @@ void drain_remote_pages(void);
 static inline void drain_remote_pages(void) { };
 #endif
 
+/* Zeroing driver */
+struct zero_driver {
+	int (*zero_func)(void *, unsigned long);
+	struct list_head list;
+};
+
+void register_zero_driver(struct zero_driver *z);
+void unregister_zero_driver(struct zero_driver *z);
+
 #endif /* __LINUX_GFP_H */