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
|
/**@file
Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2016 - 2018, ARM Limited. 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.
**/
#include "StandaloneMmCore.h"
#include <Library/FvLib.h>
//
// List of file types supported by dispatcher
//
EFI_FV_FILETYPE mMmFileTypes[] = {
EFI_FV_FILETYPE_MM,
0xE, //EFI_FV_FILETYPE_MM_STANDALONE,
//
// Note: DXE core will process the FV image file, so skip it in MM core
// EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE
//
};
EFI_STATUS
MmAddToDriverList (
IN EFI_HANDLE FvHandle,
IN VOID *Pe32Data,
IN UINTN Pe32DataSize,
IN VOID *Depex,
IN UINTN DepexSize,
IN EFI_GUID *DriverName
);
BOOLEAN
FvHasBeenProcessed (
IN EFI_HANDLE FvHandle
);
VOID
FvIsBeingProcesssed (
IN EFI_HANDLE FvHandle
);
EFI_STATUS
MmCoreFfsFindMmDriver (
IN EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader
)
/*++
Routine Description:
Given the pointer to the Firmware Volume Header find the
MM driver and return it's PE32 image.
Arguments:
FwVolHeader - Pointer to memory mapped FV
Returns:
other - Failure
--*/
{
EFI_STATUS Status;
EFI_STATUS DepexStatus;
EFI_FFS_FILE_HEADER *FileHeader;
EFI_FV_FILETYPE FileType;
VOID *Pe32Data;
UINTN Pe32DataSize;
VOID *Depex;
UINTN DepexSize;
UINTN Index;
DEBUG ((DEBUG_INFO, "MmCoreFfsFindMmDriver - 0x%x\n", FwVolHeader));
if (FvHasBeenProcessed (FwVolHeader)) {
return EFI_SUCCESS;
}
FvIsBeingProcesssed (FwVolHeader);
for (Index = 0; Index < sizeof (mMmFileTypes) / sizeof (mMmFileTypes[0]); Index++) {
DEBUG ((DEBUG_INFO, "Check MmFileTypes - 0x%x\n", mMmFileTypes[Index]));
FileType = mMmFileTypes[Index];
FileHeader = NULL;
do {
Status = FfsFindNextFile (FileType, FwVolHeader, &FileHeader);
if (!EFI_ERROR (Status)) {
Status = FfsFindSectionData (EFI_SECTION_PE32, FileHeader, &Pe32Data, &Pe32DataSize);
DEBUG ((DEBUG_INFO, "Find PE data - 0x%x\n", Pe32Data));
DepexStatus = FfsFindSectionData (EFI_SECTION_MM_DEPEX, FileHeader, &Depex, &DepexSize);
if (!EFI_ERROR (DepexStatus)) {
MmAddToDriverList (FwVolHeader, Pe32Data, Pe32DataSize, Depex, DepexSize, &FileHeader->Name);
}
}
} while (!EFI_ERROR (Status));
}
return Status;
}
|
