]>
Commit | Line | Data |
---|---|---|
427e3573 MK |
1 | ;------------------------------------------------------------------------------ ;\r |
2 | ; Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>\r | |
3 | ; This program and the accompanying materials\r | |
4 | ; are licensed and made available under the terms and conditions of the BSD License\r | |
5 | ; which accompanies this distribution. The full text of the license may be found at\r | |
6 | ; http://opensource.org/licenses/bsd-license.php.\r | |
7 | ;\r | |
8 | ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
9 | ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
10 | ;\r | |
11 | ; Module Name:\r | |
12 | ;\r | |
13 | ; MpFuncs.asm\r | |
14 | ;\r | |
15 | ; Abstract:\r | |
16 | ;\r | |
17 | ; This is the assembly code for Multi-processor S3 support\r | |
18 | ;\r | |
19 | ;-------------------------------------------------------------------------------\r | |
20 | \r | |
21 | EXTERN InitializeFloatingPointUnits:PROC\r | |
22 | \r | |
23 | VacantFlag Equ 00h\r | |
24 | NotVacantFlag Equ 0ffh\r | |
25 | \r | |
26 | LockLocation equ RendezvousFunnelProcEnd - RendezvousFunnelProcStart\r | |
27 | StackStartAddressLocation equ LockLocation + 08h\r | |
28 | StackSizeLocation equ LockLocation + 10h\r | |
29 | CProcedureLocation equ LockLocation + 18h\r | |
30 | GdtrLocation equ LockLocation + 20h\r | |
31 | IdtrLocation equ LockLocation + 2Ah\r | |
32 | BufferStartLocation equ LockLocation + 34h\r | |
33 | Cr3OffsetLocation equ LockLocation + 38h\r | |
34 | \r | |
35 | ;-------------------------------------------------------------------------------------\r | |
36 | ;RendezvousFunnelProc procedure follows. All APs execute their procedure. This\r | |
37 | ;procedure serializes all the AP processors through an Init sequence. It must be\r | |
38 | ;noted that APs arrive here very raw...ie: real mode, no stack.\r | |
39 | ;ALSO THIS PROCEDURE IS EXECUTED BY APs ONLY ON 16 BIT MODE. HENCE THIS PROC\r | |
40 | ;IS IN MACHINE CODE.\r | |
41 | ;-------------------------------------------------------------------------------------\r | |
42 | ;RendezvousFunnelProc (&WakeUpBuffer,MemAddress);\r | |
43 | \r | |
44 | ;text SEGMENT\r | |
45 | .code\r | |
46 | \r | |
47 | RendezvousFunnelProc PROC\r | |
48 | RendezvousFunnelProcStart::\r | |
49 | \r | |
50 | ; At this point CS = 0x(vv00) and ip= 0x0.\r | |
51 | \r | |
52 | db 8ch, 0c8h ; mov ax, cs\r | |
53 | db 8eh, 0d8h ; mov ds, ax\r | |
54 | db 8eh, 0c0h ; mov es, ax\r | |
55 | db 8eh, 0d0h ; mov ss, ax\r | |
56 | db 33h, 0c0h ; xor ax, ax\r | |
57 | db 8eh, 0e0h ; mov fs, ax\r | |
58 | db 8eh, 0e8h ; mov gs, ax\r | |
59 | \r | |
60 | flat32Start::\r | |
61 | \r | |
62 | db 0BEh\r | |
63 | dw BufferStartLocation ; mov si, BufferStartLocation\r | |
64 | db 66h, 8Bh, 14h ; mov edx,dword ptr [si] ; EDX is keeping the start address of wakeup buffer\r | |
65 | \r | |
66 | db 0BEh\r | |
67 | dw Cr3OffsetLocation ; mov si, Cr3Location\r | |
68 | db 66h, 8Bh, 0Ch ; mov ecx,dword ptr [si] ; ECX is keeping the value of CR3\r | |
69 | \r | |
70 | db 0BEh\r | |
71 | dw GdtrLocation ; mov si, GdtrProfile\r | |
72 | db 66h ; db 66h\r | |
73 | db 2Eh, 0Fh, 01h, 14h ; lgdt fword ptr cs:[si]\r | |
74 | \r | |
75 | db 0BEh\r | |
76 | dw IdtrLocation ; mov si, IdtrProfile\r | |
77 | db 66h ; db 66h\r | |
78 | db 2Eh, 0Fh, 01h, 1Ch ; lidt fword ptr cs:[si]\r | |
79 | \r | |
80 | db 33h, 0C0h ; xor ax, ax\r | |
81 | db 8Eh, 0D8h ; mov ds, ax\r | |
82 | \r | |
83 | db 0Fh, 20h, 0C0h ; mov eax, cr0 ; Get control register 0\r | |
84 | db 66h, 83h, 0C8h, 01h ; or eax, 000000001h ; Set PE bit (bit #0)\r | |
85 | db 0Fh, 22h, 0C0h ; mov cr0, eax\r | |
86 | \r | |
87 | FLAT32_JUMP::\r | |
88 | \r | |
89 | db 66h, 67h, 0EAh ; far jump\r | |
90 | dd 0h ; 32-bit offset\r | |
91 | dw 20h ; 16-bit selector\r | |
92 | \r | |
93 | PMODE_ENTRY:: ; protected mode entry point\r | |
94 | \r | |
95 | db 66h, 0B8h, 18h, 00h ; mov ax, 18h\r | |
96 | db 66h, 8Eh, 0D8h ; mov ds, ax\r | |
97 | db 66h, 8Eh, 0C0h ; mov es, ax\r | |
98 | db 66h, 8Eh, 0E0h ; mov fs, ax\r | |
99 | db 66h, 8Eh, 0E8h ; mov gs, ax\r | |
100 | db 66h, 8Eh, 0D0h ; mov ss, ax ; Flat mode setup.\r | |
101 | \r | |
102 | db 0Fh, 20h, 0E0h ; mov eax, cr4\r | |
103 | db 0Fh, 0BAh, 0E8h, 05h ; bts eax, 5\r | |
104 | db 0Fh, 22h, 0E0h ; mov cr4, eax\r | |
105 | \r | |
106 | db 0Fh, 22h, 0D9h ; mov cr3, ecx\r | |
107 | \r | |
108 | db 8Bh, 0F2h ; mov esi, edx ; Save wakeup buffer address\r | |
109 | \r | |
110 | db 0B9h\r | |
111 | dd 0C0000080h ; mov ecx, 0c0000080h ; EFER MSR number.\r | |
112 | db 0Fh, 32h ; rdmsr ; Read EFER.\r | |
113 | db 0Fh, 0BAh, 0E8h, 08h ; bts eax, 8 ; Set LME=1.\r | |
114 | db 0Fh, 30h ; wrmsr ; Write EFER.\r | |
115 | \r | |
116 | db 0Fh, 20h, 0C0h ; mov eax, cr0 ; Read CR0.\r | |
117 | db 0Fh, 0BAh, 0E8h, 1Fh ; bts eax, 31 ; Set PG=1.\r | |
118 | db 0Fh, 22h, 0C0h ; mov cr0, eax ; Write CR0.\r | |
119 | \r | |
120 | LONG_JUMP::\r | |
121 | \r | |
122 | db 67h, 0EAh ; far jump\r | |
123 | dd 0h ; 32-bit offset\r | |
124 | dw 38h ; 16-bit selector\r | |
125 | \r | |
126 | LongModeStart::\r | |
127 | \r | |
128 | mov ax, 30h\r | |
129 | mov ds, ax\r | |
130 | mov es, ax\r | |
131 | mov ss, ax\r | |
132 | \r | |
133 | mov edi, esi\r | |
134 | add edi, LockLocation\r | |
135 | mov al, NotVacantFlag\r | |
136 | TestLock::\r | |
137 | xchg byte ptr [edi], al\r | |
138 | cmp al, NotVacantFlag\r | |
139 | jz TestLock\r | |
140 | \r | |
141 | ProgramStack::\r | |
142 | \r | |
143 | mov edi, esi\r | |
144 | add edi, StackSizeLocation\r | |
145 | mov rax, qword ptr [edi]\r | |
146 | mov edi, esi\r | |
147 | add edi, StackStartAddressLocation\r | |
148 | add rax, qword ptr [edi]\r | |
149 | mov rsp, rax\r | |
150 | mov qword ptr [edi], rax\r | |
151 | \r | |
152 | Releaselock::\r | |
153 | \r | |
154 | mov al, VacantFlag\r | |
155 | mov edi, esi\r | |
156 | add edi, LockLocation\r | |
157 | xchg byte ptr [edi], al\r | |
158 | \r | |
159 | ;\r | |
160 | ; Call assembly function to initialize FPU.\r | |
161 | ;\r | |
162 | mov rax, InitializeFloatingPointUnits\r | |
163 | sub rsp, 20h\r | |
164 | call rax\r | |
165 | add rsp, 20h\r | |
166 | \r | |
167 | ;\r | |
168 | ; Call C Function\r | |
169 | ;\r | |
170 | mov edi, esi\r | |
171 | add edi, CProcedureLocation\r | |
172 | mov rax, qword ptr [edi]\r | |
173 | \r | |
174 | test rax, rax\r | |
175 | jz GoToSleep\r | |
176 | \r | |
177 | sub rsp, 20h\r | |
178 | call rax\r | |
179 | add rsp, 20h\r | |
180 | \r | |
181 | GoToSleep::\r | |
182 | cli\r | |
183 | hlt\r | |
184 | jmp $-2\r | |
185 | \r | |
186 | RendezvousFunnelProcEnd::\r | |
187 | RendezvousFunnelProc ENDP\r | |
188 | \r | |
189 | \r | |
190 | ;-------------------------------------------------------------------------------------\r | |
191 | ; AsmGetAddressMap (&AddressMap);\r | |
192 | ;-------------------------------------------------------------------------------------\r | |
193 | ; comments here for definition of address map\r | |
194 | AsmGetAddressMap PROC\r | |
195 | mov rax, offset RendezvousFunnelProcStart\r | |
196 | mov qword ptr [rcx], rax\r | |
197 | mov qword ptr [rcx+8h], PMODE_ENTRY - RendezvousFunnelProcStart\r | |
198 | mov qword ptr [rcx+10h], FLAT32_JUMP - RendezvousFunnelProcStart\r | |
199 | mov qword ptr [rcx+18h], RendezvousFunnelProcEnd - RendezvousFunnelProcStart\r | |
200 | mov qword ptr [rcx+20h], LongModeStart - RendezvousFunnelProcStart\r | |
201 | mov qword ptr [rcx+28h], LONG_JUMP - RendezvousFunnelProcStart\r | |
202 | ret\r | |
203 | \r | |
204 | AsmGetAddressMap ENDP\r | |
205 | \r | |
206 | END\r |