/** @file\r
- GUID for use in reserving SMRAM regions.\r
+ Definition of GUIDed HOB for reserving SMRAM regions.\r
\r
- Copyright (c) 2007, Intel Corporation\r
+ This file defines:\r
+ * the GUID used to identify the GUID HOB for reserving SMRAM regions.\r
+ * the data structure of SMRAM descriptor to describe SMRAM candidate regions\r
+ * values of state of SMRAM candidate regions\r
+ * the GUID specific data structure of HOB for reserving SMRAM regions.\r
+ This GUIDed HOB can be used to convey the existence of the T-SEG reservation and H-SEG usage\r
+\r
+ Copyright (c) 2007 - 2009, 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
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: SmramMemoryReserve.h\r
-\r
@par Revision Reference:\r
GUIDs defined in SmmCis spec version 0.9\r
\r
#ifndef _EFI_SMM_PEI_SMRAM_MEMORY_RESERVE_H_\r
#define _EFI_SMM_PEI_SMRAM_MEMORY_RESERVE_H_\r
\r
-#include <PiPei.h>\r
+//\r
+// Share some common definitions with PI SMM\r
+//\r
+#include <Protocol/SmmAccess2.h>\r
\r
#define EFI_SMM_PEI_SMRAM_MEMORY_RESERVE \\r
{ \\r
0x6dadf1d1, 0xd4cc, 0x4910, {0xbb, 0x6e, 0x82, 0xb1, 0xfd, 0x80, 0xff, 0x3d } \\r
}\r
\r
-//\r
-// *******************************************************\r
-// EFI_SMRAM_DESCRIPTOR\r
-// *******************************************************\r
-//\r
-typedef struct {\r
- EFI_PHYSICAL_ADDRESS PhysicalStart; // Phsyical location in DRAM\r
- EFI_PHYSICAL_ADDRESS CpuStart; // Address CPU uses to access the SMI handler\r
- // May or may not match PhysicalStart\r
- //\r
- UINT64 PhysicalSize;\r
- UINT64 RegionState;\r
-} EFI_SMRAM_DESCRIPTOR;\r
-\r
-//\r
-// *******************************************************\r
-// EFI_SMRAM_STATE\r
-// *******************************************************\r
-//\r
-#define EFI_SMRAM_OPEN 0x00000001\r
-#define EFI_SMRAM_CLOSED 0x00000002\r
-#define EFI_SMRAM_LOCKED 0x00000004\r
-#define EFI_CACHEABLE 0x00000008\r
-#define EFI_ALLOCATED 0x00000010\r
-#define EFI_NEEDS_TESTING 0x00000020\r
-#define EFI_NEEDS_ECC_INITIALIZATION 0x00000040\r
-\r
-//\r
-// *******************************************************\r
-// EFI_SMRAM_HOB_DESCRIPTOR_BLOCK\r
-// *******************************************************\r
-//\r
+/**\r
+* GUID specific data structure of HOB for reserving SMRAM regions.\r
+*\r
+* Inconsistent with specification here: \r
+* EFI_HOB_SMRAM_DESCRIPTOR_BLOCK has been changed to EFI_SMRAM_HOB_DESCRIPTOR_BLOCK.\r
+* This inconsistency is kept in code in order for backward compatibility.\r
+**/\r
typedef struct {\r
+ ///\r
+ /// Designates the number of possible regions in the system\r
+ /// that can be usable for SMRAM. \r
+ ///\r
UINTN NumberOfSmmReservedRegions;\r
+ ///\r
+ /// Used throughout this protocol to describe the candidate\r
+ /// regions for SMRAM that are supported by this platform. \r
+ ///\r
EFI_SMRAM_DESCRIPTOR Descriptor[1];\r
} EFI_SMRAM_HOB_DESCRIPTOR_BLOCK;\r
\r
extern EFI_GUID gEfiSmmPeiSmramMemoryReserveGuid;\r
\r
#endif\r
+\r