blob: 485dad0ac8e1968f599db19ce60e18c7c915ce18 (
plain)
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
141
142
143
144
|
/** @file
*
* Copyright (c) 2011, ARM Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-2-Clause-Patent
*
**/
#include <PiPei.h>
//
// The protocols, PPI and GUID defintions for this module
//
#include <Ppi/MasterBootMode.h>
#include <Ppi/BootInRecoveryMode.h>
#include <Guid/MemoryTypeInformation.h>
//
// The Library classes this module consumes
//
#include <Library/ArmPlatformLib.h>
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
#include <Library/PeimEntryPoint.h>
#include <Library/PeiServicesLib.h>
#include <Library/PcdLib.h>
EFI_STATUS
EFIAPI
MemoryPeim (
IN EFI_PHYSICAL_ADDRESS UefiMemoryBase,
IN UINT64 UefiMemorySize
);
// May want to put this into a library so you only need the PCD settings if you are using the feature?
VOID
BuildMemoryTypeInformationHob (
VOID
)
{
EFI_MEMORY_TYPE_INFORMATION Info[10];
Info[0].Type = EfiACPIReclaimMemory;
Info[0].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiACPIReclaimMemory);
Info[1].Type = EfiACPIMemoryNVS;
Info[1].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiACPIMemoryNVS);
Info[2].Type = EfiReservedMemoryType;
Info[2].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiReservedMemoryType);
Info[3].Type = EfiRuntimeServicesData;
Info[3].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiRuntimeServicesData);
Info[4].Type = EfiRuntimeServicesCode;
Info[4].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiRuntimeServicesCode);
Info[5].Type = EfiBootServicesCode;
Info[5].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiBootServicesCode);
Info[6].Type = EfiBootServicesData;
Info[6].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiBootServicesData);
Info[7].Type = EfiLoaderCode;
Info[7].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiLoaderCode);
Info[8].Type = EfiLoaderData;
Info[8].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiLoaderData);
// Terminator for the list
Info[9].Type = EfiMaxMemoryType;
Info[9].NumberOfPages = 0;
BuildGuidDataHob (&gEfiMemoryTypeInformationGuid, &Info, sizeof (Info));
}
/*++
Routine Description:
Arguments:
FileHandle - Handle of the file being invoked.
PeiServices - Describes the list of possible PEI Services.
Returns:
Status - EFI_SUCCESS if the boot mode could be set
--*/
EFI_STATUS
EFIAPI
InitializeMemory (
IN EFI_PEI_FILE_HANDLE FileHandle,
IN CONST EFI_PEI_SERVICES **PeiServices
)
{
EFI_STATUS Status;
UINTN SystemMemoryBase;
UINT64 SystemMemoryTop;
UINTN FdBase;
UINTN FdTop;
UINTN UefiMemoryBase;
DEBUG ((EFI_D_LOAD | EFI_D_INFO, "Memory Init PEIM Loaded\n"));
// Ensure PcdSystemMemorySize has been set
ASSERT (PcdGet64 (PcdSystemMemorySize) != 0);
ASSERT (PcdGet64 (PcdSystemMemoryBase) < (UINT64)MAX_ALLOC_ADDRESS);
SystemMemoryBase = (UINTN)PcdGet64 (PcdSystemMemoryBase);
SystemMemoryTop = SystemMemoryBase + PcdGet64 (PcdSystemMemorySize);
if (SystemMemoryTop - 1 > MAX_ALLOC_ADDRESS) {
SystemMemoryTop = (UINT64)MAX_ALLOC_ADDRESS + 1;
}
FdBase = (UINTN)PcdGet64 (PcdFdBaseAddress);
FdTop = FdBase + (UINTN)PcdGet32 (PcdFdSize);
//
// Declare the UEFI memory to PEI
//
// In case the firmware has been shadowed in the System Memory
if ((FdBase >= SystemMemoryBase) && (FdTop <= SystemMemoryTop)) {
// Check if there is enough space between the top of the system memory and the top of the
// firmware to place the UEFI memory (for PEI & DXE phases)
if (SystemMemoryTop - FdTop >= FixedPcdGet32 (PcdSystemMemoryUefiRegionSize)) {
UefiMemoryBase = SystemMemoryTop - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);
} else {
// Check there is enough space for the UEFI memory
ASSERT (SystemMemoryBase + FixedPcdGet32 (PcdSystemMemoryUefiRegionSize) <= FdBase);
UefiMemoryBase = FdBase - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);
}
} else {
// Check the Firmware does not overlapped with the system memory
ASSERT ((FdBase < SystemMemoryBase) || (FdBase >= SystemMemoryTop));
ASSERT ((FdTop <= SystemMemoryBase) || (FdTop > SystemMemoryTop));
UefiMemoryBase = SystemMemoryTop - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);
}
Status = PeiServicesInstallPeiMemory (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));
ASSERT_EFI_ERROR (Status);
// Initialize MMU and Memory HOBs (Resource Descriptor HOBs)
Status = MemoryPeim (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));
ASSERT_EFI_ERROR (Status);
return Status;
}
|
