blob: 484d81eb00e87794795338aa49448164bebbaadc (
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
|
/** @file
SMM profile header file.
Copyright (c) 2012 - 2019, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _SMM_PROFILE_H_
#define _SMM_PROFILE_H_
#include "SmmProfileInternal.h"
//
// External functions
//
/**
Initialize processor environment for SMM profile.
@param CpuIndex The index of the processor.
**/
VOID
ActivateSmmProfile (
IN UINTN CpuIndex
);
/**
Initialize SMM profile in SMM CPU entry point.
@param[in] Cr3 The base address of the page tables to use in SMM.
**/
VOID
InitSmmProfile (
UINT32 Cr3
);
/**
Increase SMI number in each SMI entry.
**/
VOID
SmmProfileRecordSmiNum (
VOID
);
/**
The Page fault handler to save SMM profile data.
@param Rip The RIP when exception happens.
@param ErrorCode The Error code of exception.
**/
VOID
SmmProfilePFHandler (
UINTN Rip,
UINTN ErrorCode
);
/**
Updates page table to make some memory ranges (like system memory) absent
and make some memory ranges (like MMIO) present and execute disable. It also
update 2MB-page to 4KB-page for some memory ranges.
**/
VOID
SmmProfileStart (
VOID
);
/**
Page fault IDT handler for SMM Profile.
**/
VOID
EFIAPI
PageFaultIdtHandlerSmmProfile (
VOID
);
/**
Check if feature is supported by a processor.
**/
VOID
CheckFeatureSupported (
VOID
);
/**
Update page table according to protected memory ranges and the 4KB-page mapped memory ranges.
**/
VOID
InitPaging (
VOID
);
/**
Get CPU Index from APIC ID.
**/
UINTN
GetCpuIndex (
VOID
);
/**
Handler for Page Fault triggered by Guard page.
@param ErrorCode The Error code of exception.
**/
VOID
GuardPagePFHandler (
UINTN ErrorCode
);
//
// The flag indicates if execute-disable is supported by processor.
//
extern BOOLEAN mXdSupported;
//
// The flag indicates if execute-disable is enabled on processor.
//
extern BOOLEAN mXdEnabled;
//
// The flag indicates if #DB will be setup in #PF handler.
//
extern BOOLEAN mSetupDebugTrap;
#endif // _SMM_PROFILE_H_
|
