1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/** @file
Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which 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 _SEC_CORE_H_
#define _SEC_CORE_H_
#include <PiPei.h>
#include <Ppi/TemporaryRamSupport.h>
#include <Library/BaseLib.h>
#include <Library/IoLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/PciCf8Lib.h>
#include <Library/SerialPortLib.h>
#include <Library/FspSwitchStackLib.h>
#include <Library/FspCommonLib.h>
#include <FspEas.h>
#define SEC_IDT_ENTRY_COUNT 34
typedef VOID (*PEI_CORE_ENTRY) ( \
IN CONST EFI_SEC_PEI_HAND_OFF *SecCoreData, \
IN CONST EFI_PEI_PPI_DESCRIPTOR *PpiList \
);
typedef struct _SEC_IDT_TABLE {
EFI_PEI_SERVICES *PeiService;
UINT64 IdtTable[SEC_IDT_ENTRY_COUNT];
} SEC_IDT_TABLE;
/**
Switch the stack in the temporary memory to the one in the permanent memory.
This function must be invoked after the memory migration immediately. The relative
position of the stack in the temporary and permanent memory is same.
@param[in] TemporaryMemoryBase Base address of the temporary memory.
@param[in] PermenentMemoryBase Base address of the permanent memory.
**/
VOID
EFIAPI
SecSwitchStack (
IN UINT32 TemporaryMemoryBase,
IN UINT32 PermenentMemoryBase
);
/**
This service of the TEMPORARY_RAM_SUPPORT_PPI that migrates temporary RAM into
permanent memory.
@param[in] PeiServices Pointer to the PEI Services Table.
@param[in] TemporaryMemoryBase Source Address in temporary memory from which the SEC or PEIM will copy the
Temporary RAM contents.
@param[in] PermanentMemoryBase Destination Address in permanent memory into which the SEC or PEIM will copy the
Temporary RAM contents.
@param[in] CopySize Amount of memory to migrate from temporary to permanent memory.
@retval EFI_SUCCESS The data was successfully returned.
@retval EFI_INVALID_PARAMETER PermanentMemoryBase + CopySize > TemporaryMemoryBase when
TemporaryMemoryBase > PermanentMemoryBase.
**/
EFI_STATUS
EFIAPI
SecTemporaryRamSupport (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_PHYSICAL_ADDRESS TemporaryMemoryBase,
IN EFI_PHYSICAL_ADDRESS PermanentMemoryBase,
IN UINTN CopySize
);
/**
Initializes floating point units for requirement of UEFI specification.
This function initializes floating-point control word to 0x027F (all exceptions
masked,double-precision, round-to-nearest) and multimedia-extensions control word
(if supported) to 0x1F80 (all exceptions masked, round-to-nearest, flush to zero
for masked underflow).
**/
VOID
EFIAPI
InitializeFloatingPointUnits (
VOID
);
/**
Entry point to the C language phase of SEC. After the SEC assembly
code has initialized some temporary memory and set up the stack,
the control is transferred to this function.
@param[in] SizeOfRam Size of the temporary memory available for use.
@param[in] TempRamBase Base address of temporary ram
@param[in] BootFirmwareVolume Base address of the Boot Firmware Volume.
@param[in] PeiCore PeiCore entry point.
@param[in] BootLoaderStack BootLoader stack.
@param[in] ApiIdx the index of API.
@return This function never returns.
**/
VOID
EFIAPI
SecStartup (
IN UINT32 SizeOfRam,
IN UINT32 TempRamBase,
IN VOID *BootFirmwareVolume,
IN PEI_CORE_ENTRY PeiCore,
IN UINT32 BootLoaderStack,
IN UINT32 ApiIdx
);
/**
Autogenerated function that calls the library constructors for all of the module's
dependent libraries. This function must be called by the SEC Core once a stack has
been established.
**/
VOID
EFIAPI
ProcessLibraryConstructorList (
VOID
);
#endif
|
