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8f07f895 | 1 | /** @file\r |
2 | Common header file for CPU Exception Handler Library.\r | |
3 | \r | |
1b2f7b3e | 4 | Copyright (c) 2012 - 2017, Intel Corporation. All rights reserved.<BR>\r |
8f07f895 | 5 | This program and the accompanying materials\r |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #ifndef _CPU_EXCEPTION_COMMON_H_\r | |
16 | #define _CPU_EXCEPTION_COMMON_H_\r | |
17 | \r | |
e41aad15 JF |
18 | #include <Ppi/VectorHandoffInfo.h>\r |
19 | #include <Protocol/Cpu.h>\r | |
8f07f895 | 20 | #include <Library/BaseLib.h>\r |
21 | #include <Library/SerialPortLib.h>\r | |
22 | #include <Library/PrintLib.h>\r | |
23 | #include <Library/LocalApicLib.h>\r | |
24 | #include <Library/PeCoffGetEntryPointLib.h>\r | |
e41aad15 JF |
25 | #include <Library/BaseMemoryLib.h>\r |
26 | #include <Library/SynchronizationLib.h>\r | |
1b2f7b3e | 27 | #include <Library/CpuExceptionHandlerLib.h>\r |
e41aad15 JF |
28 | \r |
29 | #define CPU_EXCEPTION_NUM 32\r | |
30 | #define CPU_INTERRUPT_NUM 256\r | |
31 | #define HOOKAFTER_STUB_SIZE 16\r | |
32 | \r | |
1b2f7b3e JF |
33 | //\r |
34 | // Exception Error Code of Page-Fault Exception\r | |
35 | //\r | |
36 | #define IA32_PF_EC_P BIT0\r | |
37 | #define IA32_PF_EC_WR BIT1\r | |
38 | #define IA32_PF_EC_US BIT2\r | |
39 | #define IA32_PF_EC_RSVD BIT3\r | |
40 | #define IA32_PF_EC_ID BIT4\r | |
41 | #define IA32_PF_EC_PK BIT5\r | |
42 | #define IA32_PF_EC_SGX BIT15\r | |
43 | \r | |
e41aad15 | 44 | #include "ArchInterruptDefs.h"\r |
8f07f895 | 45 | \r |
a81abf16 JF |
46 | #define CPU_EXCEPTION_HANDLER_LIB_HOB_GUID \\r |
47 | { \\r | |
48 | 0xb21d9148, 0x9211, 0x4d8f, { 0xad, 0xd3, 0x66, 0xb1, 0x89, 0xc9, 0x2c, 0x83 } \\r | |
49 | }\r | |
50 | \r | |
0ff5aa9c JW |
51 | #define CPU_STACK_SWITCH_EXCEPTION_NUMBER \\r |
52 | FixedPcdGetSize (PcdCpuStackSwitchExceptionList)\r | |
53 | \r | |
54 | #define CPU_STACK_SWITCH_EXCEPTION_LIST \\r | |
55 | FixedPcdGetPtr (PcdCpuStackSwitchExceptionList)\r | |
56 | \r | |
57 | #define CPU_KNOWN_GOOD_STACK_SIZE \\r | |
58 | FixedPcdGet32 (PcdCpuKnownGoodStackSize)\r | |
59 | \r | |
60 | #define CPU_TSS_GDT_SIZE (SIZE_2KB + CPU_TSS_DESC_SIZE + CPU_TSS_SIZE)\r | |
61 | \r | |
8f07f895 | 62 | //\r |
63 | // Record exception handler information\r | |
64 | //\r | |
65 | typedef struct {\r | |
66 | UINTN ExceptionStart;\r | |
67 | UINTN ExceptionStubHeaderSize;\r | |
e41aad15 | 68 | UINTN HookAfterStubHeaderStart;\r |
8f07f895 | 69 | } EXCEPTION_HANDLER_TEMPLATE_MAP;\r |
70 | \r | |
2c5873fe JF |
71 | typedef struct {\r |
72 | UINTN IdtEntryCount;\r | |
73 | SPIN_LOCK DisplayMessageSpinLock;\r | |
74 | RESERVED_VECTORS_DATA *ReservedVectors;\r | |
75 | EFI_CPU_INTERRUPT_HANDLER *ExternalInterruptHandler;\r | |
76 | } EXCEPTION_HANDLER_DATA;\r | |
77 | \r | |
e41aad15 | 78 | extern CONST UINT32 mErrorCodeFlag;\r |
e41aad15 | 79 | extern CONST UINTN mDoFarReturnFlag;\r |
8f07f895 | 80 | \r |
81 | /**\r | |
82 | Return address map of exception handler template so that C code can generate\r | |
83 | exception tables.\r | |
84 | \r | |
85 | @param AddressMap Pointer to a buffer where the address map is returned.\r | |
86 | **/\r | |
87 | VOID\r | |
88 | EFIAPI\r | |
e41aad15 | 89 | AsmGetTemplateAddressMap (\r |
8f07f895 | 90 | OUT EXCEPTION_HANDLER_TEMPLATE_MAP *AddressMap\r |
91 | );\r | |
92 | \r | |
93 | /**\r | |
e41aad15 JF |
94 | Return address map of exception handler template so that C code can generate\r |
95 | exception tables.\r | |
96 | \r | |
97 | @param IdtEntry Pointer to IDT entry to be updated.\r | |
98 | @param InterruptHandler IDT handler value.\r | |
8f07f895 | 99 | \r |
100 | **/\r | |
101 | VOID\r | |
e41aad15 JF |
102 | ArchUpdateIdtEntry (\r |
103 | IN IA32_IDT_GATE_DESCRIPTOR *IdtEntry,\r | |
104 | IN UINTN InterruptHandler\r | |
105 | );\r | |
106 | \r | |
107 | /**\r | |
108 | Read IDT handler value from IDT entry.\r | |
109 | \r | |
110 | @param IdtEntry Pointer to IDT entry to be read.\r | |
111 | \r | |
112 | **/\r | |
113 | UINTN\r | |
114 | ArchGetIdtHandler (\r | |
115 | IN IA32_IDT_GATE_DESCRIPTOR *IdtEntry\r | |
8f07f895 | 116 | );\r |
117 | \r | |
118 | /**\r | |
119 | Prints a message to the serial port.\r | |
120 | \r | |
121 | @param Format Format string for the message to print.\r | |
dd563742 | 122 | @param ... Variable argument list whose contents are accessed\r |
8f07f895 | 123 | based on the format string specified by Format.\r |
124 | \r | |
125 | **/\r | |
126 | VOID\r | |
127 | EFIAPI\r | |
128 | InternalPrintMessage (\r | |
129 | IN CONST CHAR8 *Format,\r | |
130 | ...\r | |
131 | );\r | |
132 | \r | |
133 | /**\r | |
134 | Find and display image base address and return image base and its entry point.\r | |
dd563742 | 135 | \r |
a9c7ab95 | 136 | @param CurrentEip Current instruction pointer.\r |
dd563742 | 137 | \r |
8f07f895 | 138 | **/\r |
dd563742 | 139 | VOID\r |
1b2f7b3e JF |
140 | DumpModuleImageInfo (\r |
141 | IN UINTN CurrentEip\r | |
8f07f895 | 142 | );\r |
143 | \r | |
144 | /**\r | |
145 | Display CPU information.\r | |
146 | \r | |
3f25e6ea | 147 | @param ExceptionType Exception type.\r |
8f07f895 | 148 | @param SystemContext Pointer to EFI_SYSTEM_CONTEXT.\r |
149 | **/\r | |
150 | VOID\r | |
1b2f7b3e | 151 | DumpImageAndCpuContent (\r |
e41aad15 | 152 | IN EFI_EXCEPTION_TYPE ExceptionType,\r |
8f07f895 | 153 | IN EFI_SYSTEM_CONTEXT SystemContext\r |
154 | );\r | |
155 | \r | |
e41aad15 JF |
156 | /**\r |
157 | Internal worker function to initialize exception handler.\r | |
158 | \r | |
ab95e54d JF |
159 | @param[in] VectorInfo Pointer to reserved vector list.\r |
160 | @param[in, out] ExceptionHandlerData Pointer to exception handler data.\r | |
dd563742 JF |
161 | \r |
162 | @retval EFI_SUCCESS CPU Exception Entries have been successfully initialized\r | |
e41aad15 JF |
163 | with default exception handlers.\r |
164 | @retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if VectorInfo is not NULL.\r | |
165 | @retval EFI_UNSUPPORTED This function is not supported.\r | |
166 | \r | |
167 | **/\r | |
168 | EFI_STATUS\r | |
169 | InitializeCpuExceptionHandlersWorker (\r | |
ab95e54d JF |
170 | IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL,\r |
171 | IN OUT EXCEPTION_HANDLER_DATA *ExceptionHandlerData\r | |
e41aad15 JF |
172 | );\r |
173 | \r | |
174 | /**\r | |
175 | Registers a function to be called from the processor interrupt handler.\r | |
176 | \r | |
670f13af JF |
177 | @param[in] InterruptType Defines which interrupt or exception to hook.\r |
178 | @param[in] InterruptHandler A pointer to a function of type EFI_CPU_INTERRUPT_HANDLER that is called\r | |
179 | when a processor interrupt occurs. If this parameter is NULL, then the handler\r | |
180 | will be uninstalled\r | |
181 | @param[in] ExceptionHandlerData Pointer to exception handler data.\r | |
e41aad15 JF |
182 | \r |
183 | @retval EFI_SUCCESS The handler for the processor interrupt was successfully installed or uninstalled.\r | |
184 | @retval EFI_ALREADY_STARTED InterruptHandler is not NULL, and a handler for InterruptType was\r | |
185 | previously installed.\r | |
186 | @retval EFI_INVALID_PARAMETER InterruptHandler is NULL, and a handler for InterruptType was not\r | |
187 | previously installed.\r | |
188 | @retval EFI_UNSUPPORTED The interrupt specified by InterruptType is not supported,\r | |
189 | or this function is not supported.\r | |
3f25e6ea | 190 | **/\r |
e41aad15 JF |
191 | EFI_STATUS\r |
192 | RegisterCpuInterruptHandlerWorker (\r | |
193 | IN EFI_EXCEPTION_TYPE InterruptType,\r | |
670f13af JF |
194 | IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler,\r |
195 | IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData\r | |
e41aad15 JF |
196 | );\r |
197 | \r | |
198 | /**\r | |
199 | Internal worker function to update IDT entries accordling to vector attributes.\r | |
200 | \r | |
9db15f81 JF |
201 | @param[in] IdtTable Pointer to IDT table.\r |
202 | @param[in] TemplateMap Pointer to a buffer where the address map is\r | |
203 | returned.\r | |
204 | @param[in] ExceptionHandlerData Pointer to exception handler data.\r | |
e41aad15 JF |
205 | \r |
206 | **/\r | |
207 | VOID\r | |
208 | UpdateIdtTable (\r | |
209 | IN IA32_IDT_GATE_DESCRIPTOR *IdtTable,\r | |
210 | IN EXCEPTION_HANDLER_TEMPLATE_MAP *TemplateMap,\r | |
9db15f81 | 211 | IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData\r |
e41aad15 JF |
212 | );\r |
213 | \r | |
214 | /**\r | |
215 | Save CPU exception context when handling EFI_VECTOR_HANDOFF_HOOK_AFTER case.\r | |
216 | \r | |
81b21fc2 JF |
217 | @param[in] ExceptionType Exception type.\r |
218 | @param[in] SystemContext Pointer to EFI_SYSTEM_CONTEXT.\r | |
219 | @param[in] ExceptionHandlerData Pointer to exception handler data.\r | |
e41aad15 JF |
220 | **/\r |
221 | VOID\r | |
222 | ArchSaveExceptionContext (\r | |
81b21fc2 JF |
223 | IN UINTN ExceptionType,\r |
224 | IN EFI_SYSTEM_CONTEXT SystemContext,\r | |
225 | IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData\r | |
e41aad15 JF |
226 | );\r |
227 | \r | |
228 | /**\r | |
229 | Restore CPU exception context when handling EFI_VECTOR_HANDOFF_HOOK_AFTER case.\r | |
230 | \r | |
368c54e7 JF |
231 | @param[in] ExceptionType Exception type.\r |
232 | @param[in] SystemContext Pointer to EFI_SYSTEM_CONTEXT.\r | |
233 | @param[in] ExceptionHandlerData Pointer to exception handler data.\r | |
e41aad15 JF |
234 | **/\r |
235 | VOID\r | |
236 | ArchRestoreExceptionContext (\r | |
368c54e7 JF |
237 | IN UINTN ExceptionType,\r |
238 | IN EFI_SYSTEM_CONTEXT SystemContext,\r | |
239 | IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData\r | |
e41aad15 JF |
240 | );\r |
241 | \r | |
242 | /**\r | |
07da1ac8 | 243 | Fix up the vector number and function address in the vector code.\r |
dd563742 | 244 | \r |
07da1ac8 AF |
245 | @param[in] NewVectorAddr New vector handler address.\r |
246 | @param[in] VectorNum Index of vector.\r | |
247 | @param[in] OldVectorAddr Old vector handler address.\r | |
e41aad15 JF |
248 | \r |
249 | **/\r | |
250 | VOID\r | |
251 | EFIAPI\r | |
252 | AsmVectorNumFixup (\r | |
07da1ac8 AF |
253 | IN VOID *NewVectorAddr,\r |
254 | IN UINT8 VectorNum,\r | |
255 | IN VOID *OldVectorAddr\r | |
e41aad15 JF |
256 | );\r |
257 | \r | |
258 | /**\r | |
259 | Read and save reserved vector information\r | |
dd563742 | 260 | \r |
e41aad15 JF |
261 | @param[in] VectorInfo Pointer to reserved vector list.\r |
262 | @param[out] ReservedVector Pointer to reserved vector data buffer.\r | |
263 | @param[in] VectorCount Vector number to be updated.\r | |
dd563742 | 264 | \r |
e41aad15 JF |
265 | @return EFI_SUCCESS Read and save vector info successfully.\r |
266 | @retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if VectorInfo is not NULL.\r | |
267 | \r | |
268 | **/\r | |
269 | EFI_STATUS\r | |
270 | ReadAndVerifyVectorInfo (\r | |
271 | IN EFI_VECTOR_HANDOFF_INFO *VectorInfo,\r | |
272 | OUT RESERVED_VECTORS_DATA *ReservedVector,\r | |
273 | IN UINTN VectorCount\r | |
274 | );\r | |
275 | \r | |
a51ee144 JF |
276 | /**\r |
277 | Get ASCII format string exception name by exception type.\r | |
278 | \r | |
279 | @param ExceptionType Exception type.\r | |
280 | \r | |
281 | @return ASCII format string exception name.\r | |
282 | **/\r | |
283 | CONST CHAR8 *\r | |
284 | GetExceptionNameStr (\r | |
285 | IN EFI_EXCEPTION_TYPE ExceptionType\r | |
286 | );\r | |
287 | \r | |
44ecbc28 JF |
288 | /**\r |
289 | Internal worker function for common exception handler.\r | |
290 | \r | |
291 | @param ExceptionType Exception type.\r | |
292 | @param SystemContext Pointer to EFI_SYSTEM_CONTEXT.\r | |
293 | @param ExceptionHandlerData Pointer to exception handler data.\r | |
294 | **/\r | |
295 | VOID\r | |
296 | CommonExceptionHandlerWorker (\r | |
dd563742 | 297 | IN EFI_EXCEPTION_TYPE ExceptionType,\r |
44ecbc28 JF |
298 | IN EFI_SYSTEM_CONTEXT SystemContext,\r |
299 | IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData\r | |
300 | );\r | |
301 | \r | |
0ff5aa9c JW |
302 | /**\r |
303 | Setup separate stack for specific exceptions.\r | |
304 | \r | |
305 | @param[in] StackSwitchData Pointer to data required for setuping up\r | |
306 | stack switch.\r | |
307 | \r | |
308 | @retval EFI_SUCCESS The exceptions have been successfully\r | |
309 | initialized with new stack.\r | |
310 | @retval EFI_INVALID_PARAMETER StackSwitchData contains invalid content.\r | |
311 | **/\r | |
312 | EFI_STATUS\r | |
313 | ArchSetupExcpetionStack (\r | |
314 | IN CPU_EXCEPTION_INIT_DATA *StackSwitchData\r | |
315 | );\r | |
316 | \r | |
317 | /**\r | |
318 | Return address map of exception handler template so that C code can generate\r | |
319 | exception tables. The template is only for exceptions using task gate instead\r | |
320 | of interrupt gate.\r | |
321 | \r | |
322 | @param AddressMap Pointer to a buffer where the address map is returned.\r | |
323 | **/\r | |
324 | VOID\r | |
325 | EFIAPI\r | |
326 | AsmGetTssTemplateMap (\r | |
327 | OUT EXCEPTION_HANDLER_TEMPLATE_MAP *AddressMap\r | |
328 | );\r | |
329 | \r | |
8f07f895 | 330 | #endif\r |
e41aad15 | 331 | \r |