diff --git a/headers/private/kernel/vm/vm_page.h b/headers/private/kernel/vm/vm_page.h
index 3eb2c260e7..65feee5153 100644
--- a/headers/private/kernel/vm/vm_page.h
+++ b/headers/private/kernel/vm/vm_page.h
@@ -44,6 +44,7 @@ page_num_t vm_page_num_free_pages(void);
 page_num_t vm_page_num_available_pages(void);
 page_num_t vm_page_num_unused_pages(void);
 void vm_page_get_stats(system_info *info);
+phys_addr_t vm_page_max_address();
 
 status_t vm_page_write_modified_page_range(struct VMCache *cache,
 	uint32 firstPage, uint32 endPage);
diff --git a/src/system/kernel/vm/vm_page.cpp b/src/system/kernel/vm/vm_page.cpp
index 7a947449d3..4ec0ac3d29 100644
--- a/src/system/kernel/vm/vm_page.cpp
+++ b/src/system/kernel/vm/vm_page.cpp
@@ -3634,3 +3634,15 @@ vm_page_get_stats(system_info *info)
 
 	// TODO: We don't consider pages used for page directories/tables yet.
 }
+
+
+/*!	Returns the greatest address within the last page of accessible physical
+	memory.
+	The value is inclusive, i.e. in case of a 32 bit phys_addr_t 0xffffffff
+	means the that the last page ends at exactly 4 GB.
+*/
+phys_addr_t
+vm_page_max_address()
+{
+	return ((phys_addr_t)sPhysicalPageOffset + sNumPages) * B_PAGE_SIZE - 1;
+}