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9e604fe4 | 1 | /** @file\r |
c1f23d63 | 2 | X64 specific debug support macros, typedefs and prototypes.\r |
3 | \r | |
9e604fe4 | 4 | Copyright (c) 2006 - 2008, Intel Corporation \r |
c1f23d63 | 5 | All rights reserved. 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 | |
9e604fe4 | 15 | #ifndef _PLDEBUG_SUPPORT_H_\r |
16 | #define _PLDEBUG_SUPPORT_H_\r | |
c1f23d63 | 17 | \r |
ed7748fe | 18 | \r |
60c93673 | 19 | #include <Uefi.h>\r |
ed7748fe | 20 | \r |
c1f23d63 | 21 | #include <Protocol/DebugSupport.h>\r |
22 | #include <Protocol/LoadedImage.h>\r | |
ed7748fe | 23 | \r |
c1f23d63 | 24 | #include <Library/DebugLib.h>\r |
25 | #include <Library/UefiDriverEntryPoint.h>\r | |
26 | #include <Library/BaseMemoryLib.h>\r | |
27 | #include <Library/MemoryAllocationLib.h>\r | |
28 | #include <Library/UefiBootServicesTableLib.h>\r | |
29 | #include <Library/BaseLib.h>\r | |
30 | \r | |
31 | #include <Library/PcdLib.h>\r | |
32 | #define NUM_IDT_ENTRIES 0x78\r | |
33 | #define SYSTEM_TIMER_VECTOR 0x68\r | |
34 | #define VECTOR_ENTRY_PAGES 1\r | |
9e604fe4 | 35 | #define COPY_DESCRIPTOR(Dest, Src) CopyMem ((Dest), (Src), sizeof (DESCRIPTOR))\r |
36 | #define READ_IDT(Vector, Dest) COPY_DESCRIPTOR ((Dest), &((GetIdtr ())[(Vector)]))\r | |
37 | #define WRITE_IDT(Vector, Src) COPY_DESCRIPTOR (&((GetIdtr ())[(Vector)]), (Src))\r | |
38 | #define COMPARE_DESCRIPTOR(Desc1, Desc2) CompareMem ((Desc1), (Desc2), sizeof (DESCRIPTOR))\r | |
c1f23d63 | 39 | #define EFI_ISA IsaX64\r |
40 | #define FF_FXSR (1 << 24)\r | |
41 | \r | |
42 | typedef struct {\r | |
43 | UINT64 Low;\r | |
44 | UINT64 High;\r | |
45 | } DESCRIPTOR;\r | |
46 | \r | |
47 | typedef\r | |
48 | VOID\r | |
49 | (*DEBUG_PROC) (\r | |
50 | VOID\r | |
ed66e1bc | 51 | );\r |
c1f23d63 | 52 | \r |
53 | typedef struct {\r | |
54 | DESCRIPTOR OrigDesc;\r | |
55 | DEBUG_PROC OrigVector;\r | |
56 | DESCRIPTOR NewDesc;\r | |
57 | DEBUG_PROC StubEntry;\r | |
58 | VOID (*RegisteredCallback) ();\r | |
59 | } IDT_ENTRY;\r | |
60 | \r | |
61 | extern EFI_SYSTEM_CONTEXT SystemContext;\r | |
62 | extern UINT8 InterruptEntryStub[];\r | |
63 | extern UINT32 StubSize;\r | |
64 | extern VOID (*OrigVector) (VOID);\r | |
65 | \r | |
9e604fe4 | 66 | /**\r |
67 | Generic IDT entry.\r | |
68 | \r | |
69 | **/\r | |
c1f23d63 | 70 | VOID\r |
71 | CommonIdtEntry (\r | |
72 | VOID\r | |
9e604fe4 | 73 | );\r |
c1f23d63 | 74 | \r |
9e604fe4 | 75 | /**\r |
76 | Check whether FXSTOR is supported\r | |
c1f23d63 | 77 | \r |
9e604fe4 | 78 | @retval TRUE FXSTOR is supported.\r |
79 | @retval FALSE FXSTOR is not supported.\r | |
c1f23d63 | 80 | \r |
9e604fe4 | 81 | **/\r |
c1f23d63 | 82 | BOOLEAN\r |
83 | FxStorSupport (\r | |
84 | VOID\r | |
9e604fe4 | 85 | );\r |
c1f23d63 | 86 | \r |
9e604fe4 | 87 | /**\r |
88 | Return the physical address of IDTR.\r | |
c1f23d63 | 89 | \r |
9e604fe4 | 90 | @return The physical address of IDTR.\r |
c1f23d63 | 91 | \r |
9e604fe4 | 92 | **/\r |
c1f23d63 | 93 | DESCRIPTOR *\r |
94 | GetIdtr (\r | |
95 | VOID\r | |
9e604fe4 | 96 | );\r |
c1f23d63 | 97 | \r |
9e604fe4 | 98 | /**\r |
99 | Encodes an IDT descriptor with the given physical address.\r | |
c1f23d63 | 100 | \r |
9e604fe4 | 101 | @param DestDesc The IDT descriptor address.\r |
102 | @param Vecotr The interrupt vector entry.\r | |
c1f23d63 | 103 | \r |
9e604fe4 | 104 | **/\r |
c1f23d63 | 105 | VOID\r |
106 | Vect2Desc (\r | |
107 | DESCRIPTOR * DestDesc,\r | |
108 | VOID (*Vector) (VOID)\r | |
9e604fe4 | 109 | );\r |
c1f23d63 | 110 | \r |
9e604fe4 | 111 | /**\r |
112 | Programs interrupt flag to the requested state and returns previous\r | |
113 | state.\r | |
c1f23d63 | 114 | \r |
9e604fe4 | 115 | @param NewState New interrupt status.\r |
c1f23d63 | 116 | \r |
9e604fe4 | 117 | @retval TRUE Old interrupt status is TRUE.\r |
118 | @retval FALSE Old interrupt status is FALSE\r | |
c1f23d63 | 119 | \r |
9e604fe4 | 120 | **/\r |
c1f23d63 | 121 | BOOLEAN\r |
122 | WriteInterruptFlag (\r | |
123 | BOOLEAN NewState\r | |
9e604fe4 | 124 | );\r |
c1f23d63 | 125 | \r |
9e604fe4 | 126 | /**\r |
127 | Initializes driver's handler registration databas. \r | |
128 | \r | |
129 | This code executes in boot services context\r | |
130 | Must be public because it's referenced from DebugSupport.c\r | |
c1f23d63 | 131 | \r |
9e604fe4 | 132 | @retval EFI_UNSUPPORTED If x64 processor does not support FXSTOR/FXRSTOR instructions,\r |
133 | the context save will fail, so these processor's are not supported.\r | |
134 | @retval EFI_OUT_OF_RESOURCES Fails to allocate memory.\r | |
135 | @retval EFI_SUCCESS Initializes successfully.\r | |
c1f23d63 | 136 | \r |
9e604fe4 | 137 | **/\r |
c1f23d63 | 138 | EFI_STATUS\r |
9e604fe4 | 139 | PlInitializeDebugSupportDriver (\r |
c1f23d63 | 140 | VOID\r |
9e604fe4 | 141 | );\r |
c1f23d63 | 142 | \r |
9e604fe4 | 143 | /**\r |
144 | This is the callback that is written to the LoadedImage protocol instance\r | |
145 | on the image handle. It uninstalls all registered handlers and frees all entry\r | |
146 | stub memory.\r | |
c1f23d63 | 147 | \r |
9e604fe4 | 148 | @param ImageHandle The firmware allocated handle for the EFI image.\r |
c1f23d63 | 149 | \r |
9e604fe4 | 150 | @retval EFI_SUCCESS Always.\r |
c1f23d63 | 151 | \r |
9e604fe4 | 152 | **/\r |
c1f23d63 | 153 | EFI_STATUS\r |
154 | EFIAPI\r | |
9e604fe4 | 155 | PlUnloadDebugSupportDriver (\r |
c1f23d63 | 156 | IN EFI_HANDLE ImageHandle\r |
9e604fe4 | 157 | );\r |
c1f23d63 | 158 | \r |
9e604fe4 | 159 | /**\r |
160 | This is a DebugSupport protocol member function, hard\r | |
161 | coded to support only 1 processor for now.\r | |
c1f23d63 | 162 | \r |
9e604fe4 | 163 | @param This The DebugSupport instance\r |
164 | @param MaxProcessorIndex The maximuim supported processor index\r | |
c1f23d63 | 165 | \r |
9e604fe4 | 166 | @retval EFI_SUCCESS Always returned with **MaxProcessorIndex set to 0.\r |
c1f23d63 | 167 | \r |
9e604fe4 | 168 | **/\r |
c1f23d63 | 169 | EFI_STATUS\r |
170 | EFIAPI\r | |
171 | GetMaximumProcessorIndex (\r | |
172 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r | |
173 | OUT UINTN *MaxProcessorIndex\r | |
9e604fe4 | 174 | );\r |
c1f23d63 | 175 | \r |
9e604fe4 | 176 | /**\r |
177 | DebugSupport protocol member function.\r | |
c1f23d63 | 178 | \r |
9e604fe4 | 179 | @param This The DebugSupport instance\r |
180 | @param ProcessorIndex Which processor the callback applies to.\r | |
181 | @param PeriodicCallback Callback function\r | |
c1f23d63 | 182 | \r |
9e604fe4 | 183 | @retval EFI_SUCCESS Indicates the callback was registered.\r |
184 | @retval others Callback was not registered.\r | |
c1f23d63 | 185 | \r |
9e604fe4 | 186 | **/\r |
c1f23d63 | 187 | EFI_STATUS\r |
188 | EFIAPI\r | |
189 | RegisterPeriodicCallback (\r | |
190 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r | |
191 | IN UINTN ProcessorIndex,\r | |
192 | IN EFI_PERIODIC_CALLBACK PeriodicCallback\r | |
9e604fe4 | 193 | );\r |
c1f23d63 | 194 | \r |
9e604fe4 | 195 | /**\r |
196 | DebugSupport protocol member function.\r | |
c1f23d63 | 197 | \r |
9e604fe4 | 198 | This code executes in boot services context.\r |
c1f23d63 | 199 | \r |
9e604fe4 | 200 | @param This The DebugSupport instance\r |
201 | @param ProcessorIndex Which processor the callback applies to.\r | |
202 | @param NewCallback Callback function\r | |
203 | @param ExceptionType Which exception to hook\r | |
c1f23d63 | 204 | \r |
9e604fe4 | 205 | @retval EFI_SUCCESS Indicates the callback was registered.\r |
206 | @retval others Callback was not registered.\r | |
c1f23d63 | 207 | \r |
9e604fe4 | 208 | **/\r |
c1f23d63 | 209 | EFI_STATUS\r |
210 | EFIAPI\r | |
211 | RegisterExceptionCallback (\r | |
212 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r | |
213 | IN UINTN ProcessorIndex,\r | |
214 | IN EFI_EXCEPTION_CALLBACK NewCallback,\r | |
215 | IN EFI_EXCEPTION_TYPE ExceptionType\r | |
9e604fe4 | 216 | );\r |
c1f23d63 | 217 | \r |
9e604fe4 | 218 | /**\r |
219 | DebugSupport protocol member function. Calls assembly routine to flush cache.\r | |
c1f23d63 | 220 | \r |
9e604fe4 | 221 | @param This The DebugSupport instance\r |
222 | @param ProcessorIndex Which processor the callback applies to.\r | |
223 | @param Start Physical base of the memory range to be invalidated\r | |
224 | @param Length mininum number of bytes in instruction cache to invalidate\r | |
c1f23d63 | 225 | \r |
9e604fe4 | 226 | @retval EFI_SUCCESS Always returned.\r |
c1f23d63 | 227 | \r |
9e604fe4 | 228 | **/\r |
c1f23d63 | 229 | EFI_STATUS\r |
230 | EFIAPI\r | |
231 | InvalidateInstructionCache (\r | |
232 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r | |
233 | IN UINTN ProcessorIndex,\r | |
234 | IN VOID *Start,\r | |
235 | IN UINT64 Length\r | |
9e604fe4 | 236 | );\r |
c1f23d63 | 237 | \r |
238 | #endif\r |