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1abfa4ce | 1 | /** @file\r |
b3548d32 | 2 | The TPM2 definition block in ACPI table for TCG2 physical presence\r |
1abfa4ce JY |
3 | and MemoryClear.\r |
4 | \r | |
c4122dca | 5 | Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>\r |
447f73db | 6 | (c)Copyright 2016 HP Development Company, L.P.<BR>\r |
af9743ef | 7 | Copyright (c) 2017, Microsoft Corporation. All rights reserved. <BR>\r |
b3548d32 LG |
8 | This program and the accompanying materials\r |
9 | are licensed and made available under the terms and conditions of the BSD License\r | |
10 | which accompanies this distribution. The full text of the license may be found at\r | |
1abfa4ce JY |
11 | http://opensource.org/licenses/bsd-license.php\r |
12 | \r | |
b3548d32 | 13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
1abfa4ce JY |
14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
15 | \r | |
16 | **/\r | |
17 | \r | |
18 | DefinitionBlock (\r | |
19 | "Tpm.aml",\r | |
20 | "SSDT",\r | |
21 | 2,\r | |
22 | "INTEL ",\r | |
23 | "Tpm2Tabl",\r | |
24 | 0x1000\r | |
25 | )\r | |
26 | {\r | |
27 | Scope (\_SB)\r | |
28 | {\r | |
29 | Device (TPM)\r | |
30 | {\r | |
31 | //\r | |
32 | // TCG2\r | |
33 | //\r | |
9a9fa14e | 34 | \r |
73126ac2 | 35 | //\r |
9a9fa14e | 36 | // TAG for patching TPM2.0 _HID\r |
73126ac2 | 37 | //\r |
9a9fa14e | 38 | Name (_HID, "NNNN0000")\r |
73126ac2 ZC |
39 | \r |
40 | Name (_CID, "MSFT0101")\r | |
41 | \r | |
1abfa4ce JY |
42 | //\r |
43 | // Readable name of this device, don't know if this way is correct yet\r | |
44 | //\r | |
45 | Name (_STR, Unicode ("TPM 2.0 Device"))\r | |
46 | \r | |
1abfa4ce JY |
47 | //\r |
48 | // Operational region for Smi port access\r | |
49 | //\r | |
50 | OperationRegion (SMIP, SystemIO, 0xB2, 1)\r | |
51 | Field (SMIP, ByteAcc, NoLock, Preserve)\r | |
b3548d32 | 52 | {\r |
1abfa4ce JY |
53 | IOB2, 8\r |
54 | }\r | |
55 | \r | |
56 | //\r | |
57 | // Operational region for TPM access\r | |
58 | //\r | |
59 | OperationRegion (TPMR, SystemMemory, 0xfed40000, 0x5000)\r | |
60 | Field (TPMR, AnyAcc, NoLock, Preserve)\r | |
61 | {\r | |
edf7647b ZC |
62 | ACC0, 8, // TPM_ACCESS_0\r |
63 | Offset(0x8),\r | |
64 | INTE, 32, // TPM_INT_ENABLE_0\r | |
65 | INTV, 8, // TPM_INT_VECTOR_0\r | |
66 | Offset(0x10),\r | |
67 | INTS, 32, // TPM_INT_STATUS_0\r | |
68 | INTF, 32, // TPM_INTF_CAPABILITY_0\r | |
69 | STS0, 32, // TPM_STS_0\r | |
70 | Offset(0x24),\r | |
71 | FIFO, 32, // TPM_DATA_FIFO_0\r | |
72 | Offset(0x30),\r | |
73 | TID0, 32, // TPM_INTERFACE_ID_0\r | |
74 | // ignore the rest\r | |
1abfa4ce JY |
75 | }\r |
76 | \r | |
77 | //\r | |
78 | // Operational region for TPM support, TPM Physical Presence and TPM Memory Clear\r | |
79 | // Region Offset 0xFFFF0000 and Length 0xF0 will be fixed in C code.\r | |
80 | //\r | |
81 | OperationRegion (TNVS, SystemMemory, 0xFFFF0000, 0xF0)\r | |
82 | Field (TNVS, AnyAcc, NoLock, Preserve)\r | |
83 | {\r | |
84 | PPIN, 8, // Software SMI for Physical Presence Interface\r | |
85 | PPIP, 32, // Used for save physical presence paramter\r | |
86 | PPRP, 32, // Physical Presence request operation response\r | |
87 | PPRQ, 32, // Physical Presence request operation\r | |
88 | PPRM, 32, // Physical Presence request operation parameter\r | |
89 | LPPR, 32, // Last Physical Presence request operation\r | |
90 | FRET, 32, // Physical Presence function return code\r | |
91 | MCIN, 8, // Software SMI for Memory Clear Interface\r | |
92 | MCIP, 32, // Used for save the Mor paramter\r | |
93 | MORD, 32, // Memory Overwrite Request Data\r | |
053f31e3 | 94 | MRET, 32, // Memory Overwrite function return code\r |
c4122dca ZC |
95 | UCRQ, 32, // Phyical Presence request operation to Get User Confirmation Status\r |
96 | IRQN, 32, // IRQ Number for _CRS\r | |
97 | SFRB, 8 // Is shortformed Pkglength for resource buffer\r | |
1abfa4ce JY |
98 | }\r |
99 | \r | |
c4122dca ZC |
100 | //\r |
101 | // Possible resource settings returned by _PRS method\r | |
102 | // RESS : ResourceTemplate with PkgLength <=63\r | |
103 | // RESL : ResourceTemplate with PkgLength > 63\r | |
104 | //\r | |
105 | // The format of the data has to follow the same format as\r | |
106 | // _CRS (according to ACPI spec).\r | |
107 | //\r | |
108 | Name (RESS, ResourceTemplate() {\r | |
109 | Memory32Fixed (ReadWrite, 0xfed40000, 0x5000)\r | |
110 | Interrupt(ResourceConsumer, Level, ActiveLow, Shared, , , ) {1,2,3,4,5,6,7,8,9,10}\r | |
111 | })\r | |
112 | \r | |
113 | Name (RESL, ResourceTemplate() {\r | |
114 | Memory32Fixed (ReadWrite, 0xfed40000, 0x5000)\r | |
115 | Interrupt(ResourceConsumer, Level, ActiveLow, Shared, , , ) {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}\r | |
116 | })\r | |
117 | \r | |
118 | //\r | |
119 | // Current resource settings for _CRS method\r | |
120 | //\r | |
121 | Name(RES0, ResourceTemplate () {\r | |
122 | Memory32Fixed (ReadWrite, 0xfed40000, 0x5000, REG0)\r | |
73d77732 | 123 | Interrupt(ResourceConsumer, Level, ActiveLow, Shared, , , INTR) {12}\r |
edf7647b ZC |
124 | })\r |
125 | \r | |
c4122dca ZC |
126 | Name(RES1, ResourceTemplate () {\r |
127 | Memory32Fixed (ReadWrite, 0xfed40000, 0x5000, REG1)\r | |
128 | })\r | |
129 | \r | |
130 | \r | |
edf7647b ZC |
131 | //\r |
132 | // Return the resource consumed by TPM device.\r | |
133 | //\r | |
134 | Method(_CRS,0,Serialized)\r | |
135 | {\r | |
c4122dca ZC |
136 | //\r |
137 | // IRQNum = 0 means disable IRQ support\r | |
138 | //\r | |
139 | If (LEqual(IRQN, 0)) {\r | |
140 | Return (RES1)\r | |
141 | }\r | |
142 | Else\r | |
143 | {\r | |
144 | CreateDWordField(RES0, ^INTR._INT, LIRQ)\r | |
145 | Store(IRQN, LIRQ)\r | |
146 | Return (RES0)\r | |
147 | }\r | |
edf7647b ZC |
148 | }\r |
149 | \r | |
150 | //\r | |
151 | // Set resources consumed by the TPM device. This is used to\r | |
152 | // assign an interrupt number to the device. The input byte stream\r | |
153 | // has to be the same as returned by _CRS (according to ACPI spec).\r | |
154 | //\r | |
c4122dca ZC |
155 | // Platform may choose to override this function with specific interrupt\r |
156 | // programing logic to replace FIFO/TIS SIRQ registers programing\r | |
157 | //\r | |
edf7647b ZC |
158 | Method(_SRS,1,Serialized)\r |
159 | {\r | |
c4122dca ZC |
160 | //\r |
161 | // Do not configure Interrupt if IRQ Num is configured 0 by default\r | |
162 | //\r | |
39699d07 ZC |
163 | If (LNotEqual(IRQN, 0)) {\r |
164 | //\r | |
165 | // Update resource descriptor\r | |
166 | // Use the field name to identify the offsets in the argument\r | |
167 | // buffer and RES0 buffer.\r | |
168 | //\r | |
169 | CreateDWordField(Arg0, ^INTR._INT, IRQ0)\r | |
170 | CreateDWordField(RES0, ^INTR._INT, LIRQ)\r | |
171 | Store(IRQ0, LIRQ)\r | |
172 | Store(IRQ0, IRQN)\r | |
edf7647b | 173 | \r |
39699d07 ZC |
174 | CreateBitField(Arg0, ^INTR._HE, ITRG)\r |
175 | CreateBitField(RES0, ^INTR._HE, LTRG)\r | |
176 | Store(ITRG, LTRG)\r | |
edf7647b | 177 | \r |
39699d07 ZC |
178 | CreateBitField(Arg0, ^INTR._LL, ILVL)\r |
179 | CreateBitField(RES0, ^INTR._LL, LLVL)\r | |
180 | Store(ILVL, LLVL)\r | |
edf7647b | 181 | \r |
edf7647b | 182 | //\r |
39699d07 ZC |
183 | // Update TPM FIFO PTP/TIS interface only, identified by TPM_INTERFACE_ID_x lowest\r |
184 | // nibble.\r | |
185 | // 0000 - FIFO interface as defined in PTP for TPM 2.0 is active\r | |
186 | // 1111 - FIFO interface as defined in TIS1.3 is active\r | |
edf7647b | 187 | //\r |
39699d07 ZC |
188 | If (LOr(LEqual (And (TID0, 0x0F), 0x00), LEqual (And (TID0, 0x0F), 0x0F))) {\r |
189 | //\r | |
190 | // If FIFO interface, interrupt vector register is\r | |
191 | // available. TCG PTP specification allows only\r | |
192 | // values 1..15 in this field. For other interrupts\r | |
193 | // the field should stay 0.\r | |
194 | //\r | |
195 | If (LLess (IRQ0, 16)) {\r | |
196 | Store (And(IRQ0, 0xF), INTV)\r | |
197 | }\r | |
198 | //\r | |
199 | // Interrupt enable register (TPM_INT_ENABLE_x) bits 3:4\r | |
200 | // contains settings for interrupt polarity.\r | |
201 | // The other bits of the byte enable individual interrupts.\r | |
202 | // They should be all be zero, but to avoid changing the\r | |
203 | // configuration, the other bits are be preserved.\r | |
204 | // 00 - high level\r | |
205 | // 01 - low level\r | |
206 | // 10 - rising edge\r | |
207 | // 11 - falling edge\r | |
208 | //\r | |
209 | // ACPI spec definitions:\r | |
210 | // _HE: '1' is Edge, '0' is Level\r | |
211 | // _LL: '1' is ActiveHigh, '0' is ActiveLow (inverted from TCG spec)\r | |
212 | //\r | |
213 | If (LEqual (ITRG, 1)) {\r | |
214 | Or(INTE, 0x00000010, INTE)\r | |
215 | } Else {\r | |
216 | And(INTE, 0xFFFFFFEF, INTE)\r | |
217 | }\r | |
218 | if (LEqual (ILVL, 0)) {\r | |
219 | Or(INTE, 0x00000008, INTE)\r | |
220 | } Else {\r | |
221 | And(INTE, 0xFFFFFFF7, INTE)\r | |
222 | }\r | |
edf7647b ZC |
223 | }\r |
224 | }\r | |
225 | }\r | |
226 | \r | |
c4122dca ZC |
227 | Method(_PRS,0,Serialized)\r |
228 | {\r | |
229 | //\r | |
230 | // IRQNum = 0 means disable IRQ support\r | |
231 | //\r | |
232 | If (LEqual(IRQN, 0)) {\r | |
233 | Return (RES1)\r | |
234 | } ElseIf(LEqual(SFRB, 0)) {\r | |
235 | //\r | |
236 | // Long format. Possible resources PkgLength > 63\r | |
237 | //\r | |
238 | Return (RESL)\r | |
239 | } Else {\r | |
240 | //\r | |
241 | // Short format. Possible resources PkgLength <=63\r | |
242 | //\r | |
243 | Return (RESS)\r | |
244 | }\r | |
245 | }\r | |
edf7647b | 246 | \r |
1abfa4ce | 247 | Method (PTS, 1, Serialized)\r |
b3548d32 | 248 | {\r |
1abfa4ce JY |
249 | //\r |
250 | // Detect Sx state for MOR, only S4, S5 need to handle\r | |
251 | //\r | |
252 | If (LAnd (LLess (Arg0, 6), LGreater (Arg0, 3)))\r | |
b3548d32 | 253 | {\r |
1abfa4ce JY |
254 | //\r |
255 | // Bit4 -- DisableAutoDetect. 0 -- Firmware MAY autodetect.\r | |
256 | //\r | |
257 | If (LNot (And (MORD, 0x10)))\r | |
258 | {\r | |
259 | //\r | |
60ee3bd8 | 260 | // Trigger the SMI through ACPI _PTS method.\r |
1abfa4ce JY |
261 | //\r |
262 | Store (0x02, MCIP)\r | |
b3548d32 | 263 | \r |
1abfa4ce | 264 | //\r |
60ee3bd8 | 265 | // Trigger the SMI interrupt\r |
1abfa4ce JY |
266 | //\r |
267 | Store (MCIN, IOB2)\r | |
268 | }\r | |
269 | }\r | |
270 | Return (0)\r | |
b3548d32 | 271 | }\r |
1abfa4ce JY |
272 | \r |
273 | Method (_STA, 0)\r | |
274 | {\r | |
275 | if (LEqual (ACC0, 0xff))\r | |
276 | {\r | |
277 | Return (0)\r | |
278 | }\r | |
279 | Return (0x0f)\r | |
280 | }\r | |
281 | \r | |
282 | //\r | |
283 | // TCG Hardware Information\r | |
284 | //\r | |
39699d07 | 285 | Method (HINF, 1, Serialized, 0, {BuffObj, PkgObj}, {UnknownObj}) // IntObj\r |
1abfa4ce JY |
286 | {\r |
287 | //\r | |
288 | // Switch by function index\r | |
289 | //\r | |
39699d07 | 290 | Switch (ToInteger(Arg0))\r |
1abfa4ce JY |
291 | {\r |
292 | Case (0)\r | |
293 | {\r | |
294 | //\r | |
295 | // Standard query\r | |
296 | //\r | |
297 | Return (Buffer () {0x03})\r | |
298 | }\r | |
299 | Case (1)\r | |
300 | {\r | |
301 | //\r | |
302 | // Return failure if no TPM present\r | |
303 | //\r | |
304 | Name(TPMV, Package () {0x01, Package () {0x2, 0x0}})\r | |
305 | if (LEqual (_STA (), 0x00))\r | |
306 | {\r | |
307 | Return (Package () {0x00})\r | |
308 | }\r | |
309 | \r | |
310 | //\r | |
311 | // Return TPM version\r | |
312 | //\r | |
313 | Return (TPMV)\r | |
314 | }\r | |
315 | Default {BreakPoint}\r | |
316 | }\r | |
317 | Return (Buffer () {0})\r | |
318 | }\r | |
319 | \r | |
320 | Name(TPM2, Package (0x02){\r | |
b3548d32 | 321 | Zero,\r |
1abfa4ce JY |
322 | Zero\r |
323 | })\r | |
324 | \r | |
325 | Name(TPM3, Package (0x03){\r | |
b3548d32 | 326 | Zero,\r |
1abfa4ce JY |
327 | Zero,\r |
328 | Zero\r | |
329 | })\r | |
330 | \r | |
331 | //\r | |
332 | // TCG Physical Presence Interface\r | |
333 | //\r | |
39699d07 | 334 | Method (TPPI, 2, Serialized, 0, {BuffObj, PkgObj, IntObj, StrObj}, {UnknownObj, UnknownObj}) // IntObj, PkgObj\r |
b3548d32 | 335 | {\r |
1abfa4ce JY |
336 | //\r |
337 | // Switch by function index\r | |
338 | //\r | |
39699d07 | 339 | Switch (ToInteger(Arg0))\r |
1abfa4ce JY |
340 | {\r |
341 | Case (0)\r | |
342 | {\r | |
343 | //\r | |
344 | // Standard query, supports function 1-8\r | |
345 | //\r | |
346 | Return (Buffer () {0xFF, 0x01})\r | |
347 | }\r | |
348 | Case (1)\r | |
349 | {\r | |
350 | //\r | |
351 | // a) Get Physical Presence Interface Version\r | |
352 | //\r | |
cd643013 | 353 | Return ("$PV")\r |
1abfa4ce JY |
354 | }\r |
355 | Case (2)\r | |
356 | {\r | |
357 | //\r | |
358 | // b) Submit TPM Operation Request to Pre-OS Environment\r | |
359 | //\r | |
b3548d32 | 360 | \r |
39699d07 | 361 | Store (DerefOf (Index (Arg1, 0x00)), PPRQ)\r |
edb0fda2 | 362 | Store (0, PPRM)\r |
1abfa4ce | 363 | Store (0x02, PPIP)\r |
b3548d32 | 364 | \r |
1abfa4ce | 365 | //\r |
60ee3bd8 | 366 | // Trigger the SMI interrupt\r |
1abfa4ce JY |
367 | //\r |
368 | Store (PPIN, IOB2)\r | |
369 | Return (FRET)\r | |
370 | \r | |
371 | \r | |
372 | }\r | |
373 | Case (3)\r | |
374 | {\r | |
375 | //\r | |
376 | // c) Get Pending TPM Operation Requested By the OS\r | |
377 | //\r | |
b3548d32 | 378 | \r |
1abfa4ce JY |
379 | Store (PPRQ, Index (TPM2, 0x01))\r |
380 | Return (TPM2)\r | |
381 | }\r | |
382 | Case (4)\r | |
383 | {\r | |
384 | //\r | |
385 | // d) Get Platform-Specific Action to Transition to Pre-OS Environment\r | |
386 | //\r | |
387 | Return (2)\r | |
388 | }\r | |
389 | Case (5)\r | |
390 | {\r | |
391 | //\r | |
392 | // e) Return TPM Operation Response to OS Environment\r | |
393 | //\r | |
394 | Store (0x05, PPIP)\r | |
b3548d32 | 395 | \r |
1abfa4ce | 396 | //\r |
60ee3bd8 | 397 | // Trigger the SMI interrupt\r |
1abfa4ce JY |
398 | //\r |
399 | Store (PPIN, IOB2)\r | |
b3548d32 | 400 | \r |
1abfa4ce JY |
401 | Store (LPPR, Index (TPM3, 0x01))\r |
402 | Store (PPRP, Index (TPM3, 0x02))\r | |
403 | \r | |
404 | Return (TPM3)\r | |
405 | }\r | |
406 | Case (6)\r | |
407 | {\r | |
408 | \r | |
409 | //\r | |
410 | // f) Submit preferred user language (Not implemented)\r | |
411 | //\r | |
412 | \r | |
413 | Return (3)\r | |
414 | \r | |
415 | }\r | |
416 | Case (7)\r | |
417 | {\r | |
418 | //\r | |
419 | // g) Submit TPM Operation Request to Pre-OS Environment 2\r | |
420 | //\r | |
421 | Store (7, PPIP)\r | |
39699d07 | 422 | Store (DerefOf (Index (Arg1, 0x00)), PPRQ)\r |
1abfa4ce JY |
423 | Store (0, PPRM)\r |
424 | If (LEqual (PPRQ, 23)) {\r | |
39699d07 | 425 | Store (DerefOf (Index (Arg1, 0x01)), PPRM)\r |
1abfa4ce | 426 | }\r |
b3548d32 | 427 | \r |
1abfa4ce | 428 | //\r |
60ee3bd8 | 429 | // Trigger the SMI interrupt\r |
1abfa4ce | 430 | //\r |
b3548d32 | 431 | Store (PPIN, IOB2)\r |
1abfa4ce JY |
432 | Return (FRET)\r |
433 | }\r | |
434 | Case (8)\r | |
435 | {\r | |
436 | //\r | |
437 | // e) Get User Confirmation Status for Operation\r | |
438 | //\r | |
439 | Store (8, PPIP)\r | |
39699d07 | 440 | Store (DerefOf (Index (Arg1, 0x00)), UCRQ)\r |
b3548d32 | 441 | \r |
1abfa4ce | 442 | //\r |
60ee3bd8 | 443 | // Trigger the SMI interrupt\r |
1abfa4ce JY |
444 | //\r |
445 | Store (PPIN, IOB2)\r | |
b3548d32 | 446 | \r |
1abfa4ce JY |
447 | Return (FRET)\r |
448 | }\r | |
449 | \r | |
450 | Default {BreakPoint}\r | |
451 | }\r | |
452 | Return (1)\r | |
453 | }\r | |
454 | \r | |
39699d07 | 455 | Method (TMCI, 2, Serialized, 0, IntObj, {UnknownObj, UnknownObj}) // IntObj, PkgObj\r |
1abfa4ce JY |
456 | {\r |
457 | //\r | |
458 | // Switch by function index\r | |
459 | //\r | |
39699d07 | 460 | Switch (ToInteger (Arg0))\r |
1abfa4ce JY |
461 | {\r |
462 | Case (0)\r | |
463 | {\r | |
464 | //\r | |
465 | // Standard query, supports function 1-1\r | |
466 | //\r | |
467 | Return (Buffer () {0x03})\r | |
468 | }\r | |
469 | Case (1)\r | |
470 | {\r | |
471 | //\r | |
472 | // Save the Operation Value of the Request to MORD (reserved memory)\r | |
473 | //\r | |
39699d07 | 474 | Store (DerefOf (Index (Arg1, 0x00)), MORD)\r |
b3548d32 | 475 | \r |
1abfa4ce | 476 | //\r |
60ee3bd8 | 477 | // Trigger the SMI through ACPI _DSM method.\r |
1abfa4ce JY |
478 | //\r |
479 | Store (0x01, MCIP)\r | |
b3548d32 | 480 | \r |
1abfa4ce | 481 | //\r |
60ee3bd8 | 482 | // Trigger the SMI interrupt\r |
1abfa4ce JY |
483 | //\r |
484 | Store (MCIN, IOB2)\r | |
485 | Return (MRET)\r | |
486 | }\r | |
487 | Default {BreakPoint}\r | |
488 | }\r | |
b3548d32 | 489 | Return (1)\r |
1abfa4ce JY |
490 | }\r |
491 | \r | |
492 | Method (_DSM, 4, Serialized, 0, UnknownObj, {BuffObj, IntObj, IntObj, PkgObj})\r | |
493 | {\r | |
494 | \r | |
495 | //\r | |
496 | // TCG Hardware Information\r | |
497 | //\r | |
498 | If(LEqual(Arg0, ToUUID ("cf8e16a5-c1e8-4e25-b712-4f54a96702c8")))\r | |
499 | {\r | |
39699d07 | 500 | Return (HINF (Arg2))\r |
1abfa4ce JY |
501 | }\r |
502 | \r | |
503 | //\r | |
504 | // TCG Physical Presence Interface\r | |
505 | //\r | |
506 | If(LEqual(Arg0, ToUUID ("3dddfaa6-361b-4eb4-a424-8d10089d1653")))\r | |
507 | {\r | |
39699d07 | 508 | Return (TPPI (Arg2, Arg3))\r |
1abfa4ce JY |
509 | }\r |
510 | \r | |
511 | //\r | |
512 | // TCG Memory Clear Interface\r | |
513 | //\r | |
514 | If(LEqual(Arg0, ToUUID ("376054ed-cc13-4675-901c-4756d7f2d45d")))\r | |
515 | {\r | |
39699d07 | 516 | Return (TMCI (Arg2, Arg3))\r |
1abfa4ce JY |
517 | }\r |
518 | \r | |
519 | Return (Buffer () {0})\r | |
520 | }\r | |
521 | }\r | |
522 | }\r | |
523 | }\r |