diff --git a/src/system/boot/platform/openfirmware/arch/ppc/mmu.cpp b/src/system/boot/platform/openfirmware/arch/ppc/mmu.cpp
index a5429efed1..259d75c840 100644
--- a/src/system/boot/platform/openfirmware/arch/ppc/mmu.cpp
+++ b/src/system/boot/platform/openfirmware/arch/ppc/mmu.cpp
@@ -40,15 +40,13 @@ extern "C" uint8 __text_begin;
 extern "C" uint8 _end;
 
 
-#if 0
 static status_t
 insert_virtual_range_to_keep(void *start, uint32 size)
 {
-	return insert_memory_range(gKernelArgs.arch_args.virtual_ranges_to_keep,
-		gKernelArgs.arch_args.num_virtual_ranges_to_keep,
-		MAX_VIRTUAL_RANGES_TO_KEEP, start, size);
+	return insert_address_range(gKernelArgs.arch_args.virtual_ranges_to_keep,
+		&gKernelArgs.arch_args.num_virtual_ranges_to_keep,
+		MAX_VIRTUAL_RANGES_TO_KEEP, (addr_t)start, size);
 }
-#endif
 
 
 static status_t
@@ -297,12 +295,6 @@ find_allocated_ranges(void *oldPageTable, void *pageTable,
 
 		// insert range in virtual ranges to keep
 
-// TODO: ATM keeping the ranges doesn't make much sense. The OF usually identity
-// maps stuff, which means that RAM will most likely be mapped < 2 GB, which we
-// cannot preserve, since that doesn't lie in the kernel address space. Mappings
-// >= 2 GB are probably memory mapped hardware registers or the frame buffer
-// (i.e. non-RAM), which we don't handle correctly ATM.
-#if 0
 		if (keepRange) {
 			if (insert_virtual_range_to_keep(map->virtual_address,
 					map->length) != B_OK) {
@@ -310,7 +302,6 @@ find_allocated_ranges(void *oldPageTable, void *pageTable,
 					gKernelArgs.num_virtual_allocated_ranges);
 			}
 		}
-#endif
 
 		total += map->length;
 	}
diff --git a/src/system/kernel/arch/ppc/arch_vm.cpp b/src/system/kernel/arch/ppc/arch_vm.cpp
index 3d3f0043bb..a3e97ef8b5 100644
--- a/src/system/kernel/arch/ppc/arch_vm.cpp
+++ b/src/system/kernel/arch/ppc/arch_vm.cpp
@@ -12,6 +12,7 @@
 #include <boot/kernel_args.h>
 
 #include <vm/vm.h>
+#include <vm/VMAddressSpace.h>
 #include <arch/vm.h>
 #include <arch_mmu.h>
 
@@ -117,10 +118,16 @@ arch_vm_init_end(kernel_args *args)
 			continue;
 		}
 
+		phys_addr_t physicalAddress;
 		void *address = (void*)range.start;
-		area_id area = create_area("boot loader reserved area", &address,
-			B_EXACT_ADDRESS, range.size, B_ALREADY_WIRED,
-			B_KERNEL_READ_AREA | B_KERNEL_WRITE_AREA);
+		if (vm_get_page_mapping(VMAddressSpace::KernelID(), range.start,
+				&physicalAddress) != B_OK)
+			panic("arch_vm_init_end(): No page mapping for %p\n", address);
+		area_id area = vm_map_physical_memory(VMAddressSpace::KernelID(),
+			"boot loader reserved area", &address,
+			B_EXACT_ADDRESS, range.size,
+			B_KERNEL_READ_AREA | B_KERNEL_WRITE_AREA,
+			physicalAddress, true);
 		if (area < 0) {
 			panic("arch_vm_init_end(): Failed to create area for boot loader "
 				"reserved area: %p - %p\n", (void*)range.start,