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
145
|
/** @file
This driver will report some MMIO/IO resources to dxe core, extract smbios and acpi
tables from bootloader.
Copyright (c) 2014 - 2021, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "BlSupportDxe.h"
/**
Reserve MMIO/IO resource in GCD
@param IsMMIO Flag of whether it is mmio resource or io resource.
@param GcdType Type of the space.
@param BaseAddress Base address of the space.
@param Length Length of the space.
@param Alignment Align with 2^Alignment
@param ImageHandle Handle for the image of this driver.
@retval EFI_SUCCESS Reserve successful
**/
EFI_STATUS
ReserveResourceInGcd (
IN BOOLEAN IsMMIO,
IN UINTN GcdType,
IN EFI_PHYSICAL_ADDRESS BaseAddress,
IN UINT64 Length,
IN UINTN Alignment,
IN EFI_HANDLE ImageHandle
)
{
EFI_STATUS Status;
if (IsMMIO) {
Status = gDS->AddMemorySpace (
GcdType,
BaseAddress,
Length,
EFI_MEMORY_UC
);
if (EFI_ERROR (Status)) {
DEBUG ((
DEBUG_ERROR,
"Failed to add memory space :0x%lx 0x%lx\n",
BaseAddress,
Length
));
}
ASSERT_EFI_ERROR (Status);
Status = gDS->AllocateMemorySpace (
EfiGcdAllocateAddress,
GcdType,
Alignment,
Length,
&BaseAddress,
ImageHandle,
NULL
);
ASSERT_EFI_ERROR (Status);
} else {
Status = gDS->AddIoSpace (
GcdType,
BaseAddress,
Length
);
ASSERT_EFI_ERROR (Status);
Status = gDS->AllocateIoSpace (
EfiGcdAllocateAddress,
GcdType,
Alignment,
Length,
&BaseAddress,
ImageHandle,
NULL
);
ASSERT_EFI_ERROR (Status);
}
return Status;
}
/**
Main entry for the bootloader support DXE module.
@param[in] ImageHandle The firmware allocated handle for the EFI image.
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
@retval other Some error occurs when executing this entry point.
**/
EFI_STATUS
EFIAPI
BlDxeEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_HOB_GUID_TYPE *GuidHob;
EFI_PEI_GRAPHICS_INFO_HOB *GfxInfo;
ACPI_BOARD_INFO *AcpiBoardInfo;
Status = EFI_SUCCESS;
//
// Report MMIO/IO Resources
//
Status = ReserveResourceInGcd (TRUE, EfiGcdMemoryTypeMemoryMappedIo, 0xFEC00000, SIZE_4KB, 0, ImageHandle); // IOAPIC
ASSERT_EFI_ERROR (Status);
Status = ReserveResourceInGcd (TRUE, EfiGcdMemoryTypeMemoryMappedIo, 0xFED00000, SIZE_1KB, 0, ImageHandle); // HPET
ASSERT_EFI_ERROR (Status);
//
// Find the frame buffer information and update PCDs
//
GuidHob = GetFirstGuidHob (&gEfiGraphicsInfoHobGuid);
if (GuidHob != NULL) {
GfxInfo = (EFI_PEI_GRAPHICS_INFO_HOB *)GET_GUID_HOB_DATA (GuidHob);
Status = PcdSet32S (PcdVideoHorizontalResolution, GfxInfo->GraphicsMode.HorizontalResolution);
ASSERT_EFI_ERROR (Status);
Status = PcdSet32S (PcdVideoVerticalResolution, GfxInfo->GraphicsMode.VerticalResolution);
ASSERT_EFI_ERROR (Status);
Status = PcdSet32S (PcdSetupVideoHorizontalResolution, GfxInfo->GraphicsMode.HorizontalResolution);
ASSERT_EFI_ERROR (Status);
Status = PcdSet32S (PcdSetupVideoVerticalResolution, GfxInfo->GraphicsMode.VerticalResolution);
ASSERT_EFI_ERROR (Status);
}
//
// Set PcdPciExpressBaseAddress and PcdPciExpressBaseSize by HOB info
//
GuidHob = GetFirstGuidHob (&gUefiAcpiBoardInfoGuid);
if (GuidHob != NULL) {
AcpiBoardInfo = (ACPI_BOARD_INFO *)GET_GUID_HOB_DATA (GuidHob);
Status = PcdSet64S (PcdPciExpressBaseAddress, AcpiBoardInfo->PcieBaseAddress);
ASSERT_EFI_ERROR (Status);
Status = PcdSet64S (PcdPciExpressBaseSize, AcpiBoardInfo->PcieBaseSize);
ASSERT_EFI_ERROR (Status);
}
return EFI_SUCCESS;
}
|
