[U-Boot] [PATCH 3/5] efi_loader: define GUIDS for event groups

[Heinrich Schuchardt]

Event groups are used to signal multiple events at the same time.
They are identified by GUIDs. This patch provided the predefined
GUIDs of UEFI specification 2.7.

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
 include/efi_api.h             | 21 +++++++++++++++++++++
 include/efi_loader.h          | 10 ++++++++++
 lib/efi_loader/efi_boottime.c | 16 ++++++++++++++++
 3 files changed, 47 insertions(+)

diff --git a/include/efi_api.h b/include/efi_api.h
index 13ed80ac97..d20058540a 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -244,6 +244,27 @@ struct efi_runtime_services {
 			u64 maximum_variable_size);
 };
 
+/* EFI event group GUID definitions */
+#define EFI_EVENT_GROUP_EXIT_BOOT_SERVICES \
+	EFI_GUID(0x27abf055, 0xb1b8, 0x4c26, 0x80, 0x48, \
+		 0x74, 0x8f, 0x37, 0xba, 0xa2, 0xdf)
+
+#define EFI_EVENT_GROUP_VIRTUAL_ADDRESS_CHANGE \
+	EFI_GUID(0x13fa7698, 0xc831, 0x49c7, 0x87, 0xea, \
+		 0x8f, 0x43, 0xfc, 0xc2, 0x51, 0x96)
+
+#define EFI_EVENT_GROUP_MEMORY_MAP_CHANGE \
+	EFI_GUID(0x78bee926, 0x692f, 0x48fd, 0x9e, 0xdb, \
+		 0x01, 0x42, 0x2e, 0xf0, 0xd7, 0xab)
+
+#define EFI_EVENT_GROUP_READY_TO_BOOT \
+	EFI_GUID(0x7ce88fb3, 0x4bd7, 0x4679, 0x87, 0xa8, \
+		 0xa8, 0xd8, 0xde, 0xe5, 0x0d, 0x2b)
+
+#define EFI_EVENT_GROUP_RESET_SYSTEM \
+	EFI_GUID(0x62da6a56, 0x13fb, 0x485a, 0xa8, 0xda, \
+		 0xa3, 0xdd, 0x79, 0x12, 0xcb, 0x6b)
+
 /* EFI Configuration Table and GUID definitions */
 #define NULL_GUID \
 	EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, \
diff --git a/include/efi_loader.h b/include/efi_loader.h
index 7f703c6ef7..e2cd249171 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -93,6 +93,16 @@ extern const efi_guid_t efi_guid_console_control;
 extern const efi_guid_t efi_guid_device_path;
 /* GUID of the EFI_DRIVER_BINDING_PROTOCOL */
 extern const efi_guid_t efi_guid_driver_binding_protocol;
+/* event group ExitBootServices() invoked */
+extern const efi_guid_t efi_guid_event_group_exit_boot_services;
+/* event group SetVirtualAddressMap() invoked */
+extern const efi_guid_t efi_guid_event_group_virtual_address_change;
+/* event group memory map changed */
+extern const efi_guid_t efi_guid_event_group_memory_map_change;
+/* event group boot manager about to boot */
+extern const efi_guid_t efi_guid_event_group_ready_to_boot;
+/* event group ResetSystem() invoked (before ExitBootServices) */
+extern const efi_guid_t efi_guid_event_group_reset_system;
 /* GUID of the device tree table */
 extern const efi_guid_t efi_guid_fdt;
 extern const efi_guid_t efi_guid_loaded_image;
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 4acb1e092a..da3c852b44 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -65,6 +65,22 @@ const efi_guid_t efi_guid_fdt = EFI_FDT_GUID;
 const efi_guid_t efi_guid_driver_binding_protocol =
 			EFI_DRIVER_BINDING_PROTOCOL_GUID;
 
+/* event group ExitBootServices() invoked */
+const efi_guid_t efi_guid_event_group_exit_boot_services =
+			EFI_EVENT_GROUP_EXIT_BOOT_SERVICES;
+/* event group SetVirtualAddressMap() invoked */
+const efi_guid_t efi_guid_event_group_virtual_address_change =
+			EFI_EVENT_GROUP_VIRTUAL_ADDRESS_CHANGE;
+/* event group memory map changed */
+const efi_guid_t efi_guid_event_group_memory_map_change =
+			EFI_EVENT_GROUP_MEMORY_MAP_CHANGE;
+/* event group boot manager about to boot */
+const efi_guid_t efi_guid_event_group_ready_to_boot =
+			EFI_EVENT_GROUP_READY_TO_BOOT;
+/* event group ResetSystem() invoked (before ExitBootServices) */
+const efi_guid_t efi_guid_event_group_reset_system =
+			EFI_EVENT_GROUP_RESET_SYSTEM;
+
 static efi_status_t EFIAPI efi_disconnect_controller(
 					efi_handle_t controller_handle,
 					efi_handle_t driver_image_handle,
-- 
2.14.2