efi_loader: add RuntimeServicesSupported variable
This variable is defined in UEFI specification 2.8, section 8.1.
Its value should be updated whenever we add any usable runtime services
function.
Currently we only support SetVirtualAddress() for all systems and
ResetSystem() for some.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/include/efi_loader.h b/include/efi_loader.h
index f0e1313..b07155c 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -573,6 +573,9 @@
#define __efi_runtime_data __attribute__ ((section (".data.efi_runtime")))
#define __efi_runtime __attribute__ ((section (".text.efi_runtime")))
+/* Indicate supported runtime services */
+efi_status_t efi_init_runtime_supported(void);
+
/* Update CRC32 in table header */
void __efi_runtime efi_update_table_header_crc32(struct efi_table_hdr *table);