--- /dev/null
+/** @file\r
+ Boot Device Selection Architectural Protocol as defined in DXE CIS\r
+\r
+ When the DXE core is done it calls the BDS via this protocol.\r
+\r
+ Copyright (c) 2006, Intel Corporation \r
+ All rights reserved. This program and the accompanying materials \r
+ are licensed and made available under the terms and conditions of the BSD License \r
+ which accompanies this distribution. The full text of the license may be found at \r
+ http://opensource.org/licenses/bsd-license.php \r
+\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+\r
+ Module Name: Bds.h\r
+\r
+ @par Revision Reference:\r
+ Version 0.91B.\r
+\r
+**/\r
+\r
+#ifndef __ARCH_PROTOCOL_BDS_H__\r
+#define __ARCH_PROTOCOL_BDS_H__\r
+\r
+//\r
+// Global ID for the BDS Architectural Protocol\r
+//\r
+#define EFI_BDS_ARCH_PROTOCOL_GUID \\r
+ { 0x665E3FF6, 0x46CC, 0x11d4, {0x9A, 0x38, 0x00, 0x90, 0x27, 0x3F, 0xC1, 0x4D } }\r
+\r
+//\r
+// Declare forward reference for the BDS Architectural Protocol\r
+//\r
+typedef struct _EFI_BDS_ARCH_PROTOCOL EFI_BDS_ARCH_PROTOCOL;\r
+\r
+/**\r
+ This function uses policy data from the platform to determine what operating \r
+ system or system utility should be loaded and invoked. This function call \r
+ also optionally make the use of user input to determine the operating system \r
+ or system utility to be loaded and invoked. When the DXE Core has dispatched \r
+ all the drivers on the dispatch queue, this function is called. This \r
+ function will attempt to connect the boot devices required to load and invoke \r
+ the selected operating system or system utility. During this process, \r
+ additional firmware volumes may be discovered that may contain addition DXE \r
+ drivers that can be dispatched by the DXE Core. If a boot device cannot be \r
+ fully connected, this function calls the DXE Service Dispatch() to allow the \r
+ DXE drivers from any newly discovered firmware volumes to be dispatched. \r
+ Then the boot device connection can be attempted again. If the same boot \r
+ device connection operation fails twice in a row, then that boot device has \r
+ failed, and should be skipped. This function should never return.\r
+\r
+ @param This The EFI_BDS_ARCH_PROTOCOL instance.\r
+\r
+ @return None.\r
+\r
+**/\r
+typedef\r
+VOID\r
+(EFIAPI *EFI_BDS_ENTRY) (\r
+ IN EFI_BDS_ARCH_PROTOCOL *This\r
+ );\r
+\r
+/**\r
+ Interface stucture for the BDS Architectural Protocol.\r
+\r
+ @par Protocol Description:\r
+ The EFI_BDS_ARCH_PROTOCOL transfers control from DXE to an operating \r
+ system or a system utility. If there are not enough drivers initialized \r
+ when this protocol is used to access the required boot device(s), then \r
+ this protocol should add drivers to the dispatch queue and return control \r
+ back to the dispatcher. Once the required boot devices are available, then \r
+ the boot device can be used to load and invoke an OS or a system utility.\r
+\r
+ @par Protocol Parameters:\r
+ Entry - The entry point to BDS. This call does not take any parameters, \r
+ and the return value can be ignored. If it returns, then the \r
+ dispatcher must be invoked again, if it never returns, then an \r
+ operating system or a system utility have been invoked.\r
+\r
+**/\r
+struct _EFI_BDS_ARCH_PROTOCOL {\r
+ EFI_BDS_ENTRY Entry;\r
+};\r
+\r
+extern EFI_GUID gEfiBdsArchProtocolGuid;\r
+\r
+#endif\r