blob: abd195867e52b06d602428cbd4b13adaddcb5bcc (
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
|
/* -------------------------------------------
Copyright SoftwareLabs
------------------------------------------- */
#include <Builtins/ACPI/ACPIFactoryInterface.hxx>
#include <HALKit/AMD64/Processor.hpp>
#include <NewKit/KernelCheck.hpp>
///////////////////////////////////////////////////////////////////////////////////////
//! NOTE: fGSI stands 'Field Global System Interrupt'
///////////////////////////////////////////////////////////////////////////////////////
namespace NewOS::HAL
{
constexpr Int32 kThreadAPIC = 0;
constexpr Int32 kThreadLAPIC = 1;
constexpr Int32 kThreadIOAPIC = 2;
constexpr Int32 kThreadAPIC64 = 3;
constexpr Int32 kThreadBoot = 4;
/*
*
* this is used to store info about the current running thread
* we use this struct to determine if we can use it, or mark it as used or on
* sleep.
*
*/
struct ProcessorInfoAMD64 final
{
Int32 ThreadType;
UIntPtr JumpAddress;
struct
{
UInt32 Code;
UInt32 Data;
UInt32 BSS;
} Selector;
};
STATIC voidPtr kApicMadt = nullptr;
STATIC const char* kApicSignature = "APIC";
/// @brief Multiple APIC Descriptor Table.
struct MadtType final : public SDT
{
struct MadtAddress final
{
Char RecordType;
Char RecordLen; // record length
UInt32 Address;
UInt32 Flags; // 1 = Dual Legacy PICs installed
} MadtRecords[];
};
struct MadtProcessorLocalApic final
{
Char AcpiProcessorId;
Char Reserved;
UInt32 Flags;
};
struct MadtIOApic final
{
Char ApicId;
Char Reserved;
UInt32 Address;
UInt32 SystemInterruptBase;
};
struct MadtInterruptSource final
{
Char BusSource;
Char IrqSource;
UInt32 GSI;
UInt16 Flags;
};
struct MadtInterruptNmi final
{
Char NmiSource;
Char Reserved;
UInt16 Flags;
UInt32 GSI;
};
struct MadtLocalApicAddressOverride final
{
UInt16 Resvered;
UIntPtr Address;
};
///////////////////////////////////////////////////////////////////////////////////////
STATIC MadtType* kApicInfoBlock = nullptr;
///////////////////////////////////////////////////////////////////////////////////////
void hal_system_get_cores(voidPtr rsdPtr)
{
auto acpi = ACPIFactoryInterface(rsdPtr);
kApicMadt = acpi.Find(kApicSignature).Leak().Leak();
if (kApicMadt)
{
kcout << "New OS: APIC is present...\r";
kApicInfoBlock = (MadtType*)kApicMadt;
}
else
{
kcout << "New OS: APIC is not present! it is a vital component.\r";
ke_stop(RUNTIME_CHECK_FAILED);
}
}
} // namespace NewOS::HAL
///////////////////////////////////////////////////////////////////////////////////////
|
