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1/** @file\r
2 This file declares Sec Platform Information PPI.\r
3\r
4 This service is the primary handoff state into the PEI Foundation. \r
5 The Security (SEC) component creates the early, transitory memory \r
6 environment and also encapsulates knowledge of at least the \r
7 location of the Boot Firmware Volume (BFV).\r
8\r
9Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved<BR>\r
10This program and the accompanying materials are licensed and made available under \r
11the terms and conditions of the BSD License that accompanies this distribution. \r
12The full text of the license may be found at\r
13http://opensource.org/licenses/bsd-license.php. \r
14\r
15THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
16WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
17\r
18 @par Revision Reference:\r
19 This PPI is introduced in PI Version 1.0.\r
20\r
21**/\r
22\r
23#ifndef __SEC_PLATFORM_INFORMATION_PPI_H__\r
24#define __SEC_PLATFORM_INFORMATION_PPI_H__\r
25\r
26#define EFI_SEC_PLATFORM_INFORMATION_GUID \\r
27 { \\r
28 0x6f8c2b35, 0xfef4, 0x448d, {0x82, 0x56, 0xe1, 0x1b, 0x19, 0xd6, 0x10, 0x77 } \\r
29 }\r
30\r
31typedef struct _EFI_SEC_PLATFORM_INFORMATION_PPI EFI_SEC_PLATFORM_INFORMATION_PPI;\r
32\r
33\r
34///\r
35/// EFI_HEALTH_FLAGS\r
36/// Contains information generated by microcode, hardware, and/or the Itanium\r
37/// processor PAL code about the state of the processor upon reset.\r
38///\r
39typedef union {\r
40 struct {\r
41 ///\r
42 /// A 2-bit field indicating self-test state after reset.\r
43 ///\r
44 UINT32 Status : 2;\r
45 ///\r
46 /// A 1-bit field indicating whether testing has occurred.\r
47 /// If this field is zero, the processor has not been tested,\r
48 /// and no further fields in the self-test State parameter are valid.\r
49 ///\r
50 UINT32 Tested : 1;\r
51 ///\r
52 /// Reserved 13 bits.\r
53 ///\r
54 UINT32 Reserved1 :13;\r
55 ///\r
56 /// A 1-bit field. If set to 1, this indicates that virtual\r
57 /// memory features are not available.\r
58 ///\r
59 UINT32 VirtualMemoryUnavailable : 1;\r
60 ///\r
61 /// A 1-bit field. If set to 1, this indicates that IA-32 execution\r
62 /// is not available.\r
63 ///\r
64 UINT32 Ia32ExecutionUnavailable : 1;\r
65 ///\r
66 /// A 1-bit field. If set to 1, this indicates that the floating\r
67 /// point unit is not available.\r
68 ///\r
69 UINT32 FloatingPointUnavailable : 1;\r
70 ///\r
71 /// A 1-bit field. If set to 1, this indicates miscellaneous\r
72 /// functional failure other than vm, ia, or fp.\r
73 /// The test status field provides additional information on\r
74 /// test failures when the State field returns a value of\r
75 /// performance restricted or functionally restricted.\r
76 /// The value returned is implementation dependent.\r
77 ///\r
78 UINT32 MiscFeaturesUnavailable : 1;\r
79 ///\r
80 /// Reserved 12 bits.\r
81 ///\r
82 UINT32 Reserved2 :12;\r
83 } Bits;\r
84 UINT32 Uint32;\r
85} EFI_HEALTH_FLAGS;\r
86\r
87#define NORMAL_BOOT_CALL 0x0\r
88#define RECOVERY_CHECK_CALL 0x3\r
89\r
90typedef EFI_HEALTH_FLAGS X64_HANDOFF_STATUS;\r
91typedef EFI_HEALTH_FLAGS IA32_HANDOFF_STATUS;\r
92///\r
93/// The hand-off status structure for Itanium architecture.\r
94///\r
95typedef struct {\r
96 ///\r
97 /// SALE_ENTRY state : 3 = Recovery_Check\r
98 /// and 0 = RESET or Normal_Boot phase.\r
99 ///\r
100 UINT8 BootPhase;\r
101 ///\r
102 /// Firmware status on entry to SALE.\r
103 ///\r
104 UINT8 FWStatus;\r
105 UINT16 Reserved1;\r
106 UINT32 Reserved2;\r
107 ///\r
108 /// Geographically significant unique processor ID assigned by PAL.\r
109 ///\r
110 UINT16 ProcId;\r
111 UINT16 Reserved3;\r
112 UINT8 IdMask;\r
113 UINT8 EidMask;\r
114 UINT16 Reserved4;\r
115 ///\r
116 /// Address to make PAL calls.\r
117 ///\r
118 UINT64 PalCallAddress;\r
119 ///\r
120 /// If the entry state is RECOVERY_CHECK, this contains the PAL_RESET\r
121 /// return address, and if entry state is RESET, this contains\r
122 /// address for PAL_authentication call.\r
123 ///\r
124 UINT64 PalSpecialAddress;\r
125 ///\r
126 /// GR35 from PALE_EXIT state.\r
127 ///\r
128 UINT64 SelfTestStatus;\r
129 ///\r
130 /// GR37 from PALE_EXIT state.\r
131 ///\r
132 UINT64 SelfTestControl;\r
133 UINT64 MemoryBufferRequired;\r
134} ITANIUM_HANDOFF_STATUS;\r
135\r
136///\r
137/// EFI_SEC_PLATFORM_INFORMATION_RECORD.\r
138///\r
139typedef union {\r
140 IA32_HANDOFF_STATUS IA32HealthFlags;\r
141 X64_HANDOFF_STATUS x64HealthFlags;\r
142 ITANIUM_HANDOFF_STATUS ItaniumHealthFlags;\r
143} EFI_SEC_PLATFORM_INFORMATION_RECORD;\r
144\r
145/**\r
146 This interface conveys state information out of the Security (SEC) phase into PEI.\r
147\r
148 This service is published by the SEC phase. The SEC phase handoff has an optional\r
149 EFI_PEI_PPI_DESCRIPTOR list as its final argument when control is passed from SEC into the\r
150 PEI Foundation. As such, if the platform supports the built-in self test (BIST) on IA-32 Intel\r
151 architecture or the PAL-A handoff state for Itanium architecture, this information is encapsulated\r
152 into the data structure abstracted by this service. This information is collected for the boot-strap\r
153 processor (BSP) on IA-32. For Itanium architecture, it is available on all processors that execute\r
154 the PEI Foundation.\r
155\r
156 @param PeiServices The pointer to the PEI Services Table.\r
157 @param StructureSize The pointer to the variable describing size of the input buffer.\r
158 @param PlatformInformationRecord The pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD.\r
159\r
160 @retval EFI_SUCCESS The data was successfully returned.\r
161 @retval EFI_BUFFER_TOO_SMALL The buffer was too small. The current buffer size needed to\r
162 hold the record is returned in StructureSize.\r
163\r
164**/\r
165typedef\r
166EFI_STATUS\r
167(EFIAPI *EFI_SEC_PLATFORM_INFORMATION)(\r
168 IN CONST EFI_PEI_SERVICES **PeiServices,\r
169 IN OUT UINT64 *StructureSize,\r
170 OUT EFI_SEC_PLATFORM_INFORMATION_RECORD *PlatformInformationRecord\r
171);\r
172\r
173\r
174///\r
175/// This service abstracts platform-specific information. It is necessary \r
176/// to convey this information to the PEI Foundation so that it can \r
177/// discover where to begin dispatching PEIMs.\r
178///\r
179struct _EFI_SEC_PLATFORM_INFORMATION_PPI {\r
180 EFI_SEC_PLATFORM_INFORMATION PlatformInformation;\r
181};\r
182\r
183\r
184extern EFI_GUID gEfiSecPlatformInformationPpiGuid;\r
185\r
186#endif\r