ArmPlatformPkg/ArmVirtualizationPkg: introduce gEarlyPL011BaseAddressGuid

This GUID will identify a customized HOB that carries the base address of
the PL011 serial port, for clients that cannot access PCDs.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-By: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16139 6f19259b-4bc3-4df7-8a09-765794883524

ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec

@@ -32,6 +32,7 @@
 
 [Guids.common]
   gArmVirtualizationTokenSpaceGuid = { 0x0B6F5CA7, 0x4F53, 0x445A, { 0xB7, 0x6E, 0x2E, 0x36, 0x5B, 0x80, 0x63, 0x66 } }
+  gEarlyPL011BaseAddressGuid       = { 0xB199DEA9, 0xFD5C, 0x4A84, { 0x80, 0x82, 0x2F, 0x41, 0x70, 0x78, 0x03, 0x05 } }
 
 [PcdsFixedAtBuild]
   #

ArmPlatformPkg/ArmVirtualizationPkg/Include/Guid/EarlyPL011BaseAddress.h

@@ -0,0 +1,27 @@
+/** @file
+  GUID for the HOB that caches the base address of the PL011 serial port, for
+  when PCD access is not available.
+
+  Copyright (C) 2014, Red Hat, Inc.
+
+  This program and the accompanying materials are licensed and made available
+  under the terms and conditions of the BSD License that accompanies this
+  distribution. The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php.
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
+  WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef __EARLY_PL011_BASE_ADDRESS_H__
+#define __EARLY_PL011_BASE_ADDRESS_H__
+
+#define EARLY_PL011_BASE_ADDRESS_GUID { \
+          0xB199DEA9, 0xFD5C, 0x4A84, \
+          { 0x80, 0x82, 0x2F, 0x41, 0x70, 0x78, 0x03, 0x05 } \
+        }
+
+extern EFI_GUID gEarlyPL011BaseAddressGuid;
+
+#endif