now hangs at maxDec

kern/efi/efi.c

@@ -188,6 +188,25 @@ grub_efi_exit_boot_services (grub_efi_uintn_t map_key)
   return status == GRUB_EFI_SUCCESS;
 }
 
+grub_err_t
+grub_efiemu_set_virtual_address_map (grub_efi_uintn_t memory_map_size,
+				     grub_efi_uintn_t descriptor_size,
+				     grub_efi_uint32_t descriptor_version,
+				     grub_efi_memory_descriptor_t *virtual_map)
+{
+  grub_efi_runtime_services_t *r;
+  grub_efi_status_t status;
+
+  r = grub_efi_system_table->runtime_services;
+  status = efi_call_4 (r->set_virtual_address_map, memory_map_size,
+		       descriptor_size, descriptor_version, virtual_map);
+
+  if (status == GRUB_EFI_SUCCESS)
+    return GRUB_ERR_NONE;
+
+  return grub_errno (GRUB_ERR_IO, "set_virtual_address_map failed");
+}
+
 grub_uint32_t
 grub_get_rtc (void)
 {