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d65b78f1 SG |
1 | /** @file\r |
2 | Api's to communicate with OP-TEE OS (Trusted OS based on ARM TrustZone) via\r | |
3 | secure monitor calls.\r | |
4 | \r | |
5 | Copyright (c) 2018, Linaro Ltd. All rights reserved.<BR>\r | |
d61b2e28 | 6 | Copyright (c) 2021, Arm Limited. All rights reserved.<BR>\r |
d65b78f1 | 7 | \r |
4059386c | 8 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
d65b78f1 SG |
9 | \r |
10 | **/\r | |
11 | \r | |
a0f01e8a | 12 | #include <Library/ArmMmuLib.h>\r |
d65b78f1 | 13 | #include <Library/ArmSmcLib.h>\r |
a0f01e8a | 14 | #include <Library/BaseMemoryLib.h>\r |
d65b78f1 | 15 | #include <Library/BaseLib.h>\r |
a0f01e8a | 16 | #include <Library/DebugLib.h>\r |
d65b78f1 SG |
17 | #include <Library/OpteeLib.h>\r |
18 | \r | |
19 | #include <IndustryStandard/ArmStdSmc.h>\r | |
a0f01e8a SG |
20 | #include <OpteeSmc.h>\r |
21 | #include <Uefi.h>\r | |
22 | \r | |
429309e0 | 23 | STATIC OPTEE_SHARED_MEMORY_INFORMATION OpteeSharedMemoryInformation = { 0 };\r |
d65b78f1 SG |
24 | \r |
25 | /**\r | |
26 | Check for OP-TEE presence.\r | |
27 | **/\r | |
28 | BOOLEAN\r | |
29 | EFIAPI\r | |
30 | IsOpteePresent (\r | |
31 | VOID\r | |
32 | )\r | |
33 | {\r | |
429309e0 | 34 | ARM_SMC_ARGS ArmSmcArgs;\r |
d65b78f1 | 35 | \r |
a0f01e8a | 36 | ZeroMem (&ArmSmcArgs, sizeof (ARM_SMC_ARGS));\r |
d65b78f1 SG |
37 | // Send a Trusted OS Calls UID command\r |
38 | ArmSmcArgs.Arg0 = ARM_SMC_ID_TOS_UID;\r | |
39 | ArmCallSmc (&ArmSmcArgs);\r | |
40 | \r | |
41 | if ((ArmSmcArgs.Arg0 == OPTEE_OS_UID0) &&\r | |
42 | (ArmSmcArgs.Arg1 == OPTEE_OS_UID1) &&\r | |
43 | (ArmSmcArgs.Arg2 == OPTEE_OS_UID2) &&\r | |
429309e0 MK |
44 | (ArmSmcArgs.Arg3 == OPTEE_OS_UID3))\r |
45 | {\r | |
d65b78f1 SG |
46 | return TRUE;\r |
47 | } else {\r | |
48 | return FALSE;\r | |
49 | }\r | |
50 | }\r | |
a0f01e8a SG |
51 | \r |
52 | STATIC\r | |
53 | EFI_STATUS\r | |
54 | OpteeSharedMemoryRemap (\r | |
55 | VOID\r | |
56 | )\r | |
57 | {\r | |
429309e0 MK |
58 | ARM_SMC_ARGS ArmSmcArgs;\r |
59 | EFI_PHYSICAL_ADDRESS PhysicalAddress;\r | |
60 | EFI_PHYSICAL_ADDRESS Start;\r | |
61 | EFI_PHYSICAL_ADDRESS End;\r | |
62 | EFI_STATUS Status;\r | |
63 | UINTN Size;\r | |
a0f01e8a SG |
64 | \r |
65 | ZeroMem (&ArmSmcArgs, sizeof (ARM_SMC_ARGS));\r | |
66 | ArmSmcArgs.Arg0 = OPTEE_SMC_GET_SHARED_MEMORY_CONFIG;\r | |
67 | \r | |
68 | ArmCallSmc (&ArmSmcArgs);\r | |
69 | if (ArmSmcArgs.Arg0 != OPTEE_SMC_RETURN_OK) {\r | |
70 | DEBUG ((DEBUG_WARN, "OP-TEE shared memory not supported\n"));\r | |
71 | return EFI_UNSUPPORTED;\r | |
72 | }\r | |
73 | \r | |
74 | if (ArmSmcArgs.Arg3 != OPTEE_SMC_SHARED_MEMORY_CACHED) {\r | |
75 | DEBUG ((DEBUG_WARN, "OP-TEE: Only normal cached shared memory supported\n"));\r | |
76 | return EFI_UNSUPPORTED;\r | |
77 | }\r | |
78 | \r | |
429309e0 MK |
79 | Start = (ArmSmcArgs.Arg1 + SIZE_4KB - 1) & ~(SIZE_4KB - 1);\r |
80 | End = (ArmSmcArgs.Arg1 + ArmSmcArgs.Arg2) & ~(SIZE_4KB - 1);\r | |
a0f01e8a | 81 | PhysicalAddress = Start;\r |
429309e0 | 82 | Size = End - Start;\r |
a0f01e8a SG |
83 | \r |
84 | if (Size < SIZE_4KB) {\r | |
85 | DEBUG ((DEBUG_WARN, "OP-TEE shared memory too small\n"));\r | |
86 | return EFI_BUFFER_TOO_SMALL;\r | |
87 | }\r | |
88 | \r | |
89 | Status = ArmSetMemoryAttributes (PhysicalAddress, Size, EFI_MEMORY_WB);\r | |
90 | if (EFI_ERROR (Status)) {\r | |
91 | return Status;\r | |
92 | }\r | |
93 | \r | |
94 | OpteeSharedMemoryInformation.Base = (UINTN)PhysicalAddress;\r | |
95 | OpteeSharedMemoryInformation.Size = Size;\r | |
96 | \r | |
97 | return EFI_SUCCESS;\r | |
98 | }\r | |
99 | \r | |
100 | EFI_STATUS\r | |
101 | EFIAPI\r | |
102 | OpteeInit (\r | |
103 | VOID\r | |
104 | )\r | |
105 | {\r | |
429309e0 | 106 | EFI_STATUS Status;\r |
a0f01e8a SG |
107 | \r |
108 | if (!IsOpteePresent ()) {\r | |
109 | DEBUG ((DEBUG_WARN, "OP-TEE not present\n"));\r | |
110 | return EFI_UNSUPPORTED;\r | |
111 | }\r | |
112 | \r | |
113 | Status = OpteeSharedMemoryRemap ();\r | |
114 | if (EFI_ERROR (Status)) {\r | |
115 | DEBUG ((DEBUG_WARN, "OP-TEE shared memory remap failed\n"));\r | |
116 | return Status;\r | |
117 | }\r | |
118 | \r | |
119 | return EFI_SUCCESS;\r | |
120 | }\r | |
121 | \r | |
088a5334 SG |
122 | STATIC\r |
123 | BOOLEAN\r | |
124 | IsOpteeSmcReturnRpc (\r | |
429309e0 | 125 | UINT32 Return\r |
088a5334 SG |
126 | )\r |
127 | {\r | |
128 | return (Return != OPTEE_SMC_RETURN_UNKNOWN_FUNCTION) &&\r | |
129 | ((Return & OPTEE_SMC_RETURN_RPC_PREFIX_MASK) ==\r | |
130 | OPTEE_SMC_RETURN_RPC_PREFIX);\r | |
131 | }\r | |
132 | \r | |
a0f01e8a SG |
133 | /**\r |
134 | Does Standard SMC to OP-TEE in secure world.\r | |
135 | \r | |
136 | @param[in] PhysicalArg Physical address of message to pass to secure world\r | |
137 | \r | |
138 | @return 0 on success, secure world return code otherwise\r | |
139 | \r | |
140 | **/\r | |
141 | STATIC\r | |
142 | UINT32\r | |
143 | OpteeCallWithArg (\r | |
429309e0 | 144 | IN UINT64 PhysicalArg\r |
a0f01e8a SG |
145 | )\r |
146 | {\r | |
429309e0 | 147 | ARM_SMC_ARGS ArmSmcArgs;\r |
a0f01e8a SG |
148 | \r |
149 | ZeroMem (&ArmSmcArgs, sizeof (ARM_SMC_ARGS));\r | |
150 | ArmSmcArgs.Arg0 = OPTEE_SMC_CALL_WITH_ARG;\r | |
151 | ArmSmcArgs.Arg1 = (UINT32)(PhysicalArg >> 32);\r | |
152 | ArmSmcArgs.Arg2 = (UINT32)PhysicalArg;\r | |
153 | \r | |
154 | while (TRUE) {\r | |
155 | ArmCallSmc (&ArmSmcArgs);\r | |
156 | \r | |
088a5334 SG |
157 | if (IsOpteeSmcReturnRpc (ArmSmcArgs.Arg0)) {\r |
158 | switch (ArmSmcArgs.Arg0) {\r | |
429309e0 MK |
159 | case OPTEE_SMC_RETURN_RPC_FOREIGN_INTERRUPT:\r |
160 | //\r | |
161 | // A foreign interrupt was raised while secure world was\r | |
162 | // executing, since they are handled in UEFI a dummy RPC is\r | |
163 | // performed to let UEFI take the interrupt through the normal\r | |
164 | // vector.\r | |
165 | //\r | |
166 | break;\r | |
167 | \r | |
168 | default:\r | |
169 | // Do nothing in case RPC is not implemented.\r | |
170 | break;\r | |
088a5334 SG |
171 | }\r |
172 | \r | |
a0f01e8a SG |
173 | ArmSmcArgs.Arg0 = OPTEE_SMC_RETURN_FROM_RPC;\r |
174 | } else {\r | |
175 | break;\r | |
176 | }\r | |
177 | }\r | |
178 | \r | |
179 | return ArmSmcArgs.Arg0;\r | |
180 | }\r | |
181 | \r | |
182 | STATIC\r | |
183 | VOID\r | |
184 | EfiGuidToRfc4122Uuid (\r | |
429309e0 MK |
185 | OUT RFC4122_UUID *Rfc4122Uuid,\r |
186 | IN EFI_GUID *Guid\r | |
a0f01e8a SG |
187 | )\r |
188 | {\r | |
189 | Rfc4122Uuid->Data1 = SwapBytes32 (Guid->Data1);\r | |
190 | Rfc4122Uuid->Data2 = SwapBytes16 (Guid->Data2);\r | |
191 | Rfc4122Uuid->Data3 = SwapBytes16 (Guid->Data3);\r | |
192 | CopyMem (Rfc4122Uuid->Data4, Guid->Data4, sizeof (Rfc4122Uuid->Data4));\r | |
193 | }\r | |
194 | \r | |
195 | EFI_STATUS\r | |
196 | EFIAPI\r | |
197 | OpteeOpenSession (\r | |
429309e0 | 198 | IN OUT OPTEE_OPEN_SESSION_ARG *OpenSessionArg\r |
a0f01e8a SG |
199 | )\r |
200 | {\r | |
429309e0 | 201 | OPTEE_MESSAGE_ARG *MessageArg;\r |
a0f01e8a SG |
202 | \r |
203 | MessageArg = NULL;\r | |
204 | \r | |
205 | if (OpteeSharedMemoryInformation.Base == 0) {\r | |
206 | DEBUG ((DEBUG_WARN, "OP-TEE not initialized\n"));\r | |
207 | return EFI_NOT_STARTED;\r | |
208 | }\r | |
209 | \r | |
210 | MessageArg = (OPTEE_MESSAGE_ARG *)OpteeSharedMemoryInformation.Base;\r | |
211 | ZeroMem (MessageArg, sizeof (OPTEE_MESSAGE_ARG));\r | |
212 | \r | |
213 | MessageArg->Command = OPTEE_MESSAGE_COMMAND_OPEN_SESSION;\r | |
214 | \r | |
215 | //\r | |
216 | // Initialize and add the meta parameters needed when opening a\r | |
217 | // session.\r | |
218 | //\r | |
219 | MessageArg->Params[0].Attribute = OPTEE_MESSAGE_ATTRIBUTE_TYPE_VALUE_INPUT |\r | |
220 | OPTEE_MESSAGE_ATTRIBUTE_META;\r | |
221 | MessageArg->Params[1].Attribute = OPTEE_MESSAGE_ATTRIBUTE_TYPE_VALUE_INPUT |\r | |
222 | OPTEE_MESSAGE_ATTRIBUTE_META;\r | |
223 | EfiGuidToRfc4122Uuid (\r | |
224 | (RFC4122_UUID *)&MessageArg->Params[0].Union.Value,\r | |
225 | &OpenSessionArg->Uuid\r | |
226 | );\r | |
227 | ZeroMem (&MessageArg->Params[1].Union.Value, sizeof (EFI_GUID));\r | |
228 | MessageArg->Params[1].Union.Value.C = OPTEE_LOGIN_PUBLIC;\r | |
229 | \r | |
230 | MessageArg->NumParams = 2;\r | |
231 | \r | |
d61b2e28 | 232 | if (OpteeCallWithArg ((UINTN)MessageArg) != 0) {\r |
429309e0 | 233 | MessageArg->Return = OPTEE_ERROR_COMMUNICATION;\r |
a0f01e8a SG |
234 | MessageArg->ReturnOrigin = OPTEE_ORIGIN_COMMUNICATION;\r |
235 | }\r | |
236 | \r | |
429309e0 MK |
237 | OpenSessionArg->Session = MessageArg->Session;\r |
238 | OpenSessionArg->Return = MessageArg->Return;\r | |
a0f01e8a SG |
239 | OpenSessionArg->ReturnOrigin = MessageArg->ReturnOrigin;\r |
240 | \r | |
241 | return EFI_SUCCESS;\r | |
242 | }\r | |
243 | \r | |
244 | EFI_STATUS\r | |
245 | EFIAPI\r | |
246 | OpteeCloseSession (\r | |
429309e0 | 247 | IN UINT32 Session\r |
a0f01e8a SG |
248 | )\r |
249 | {\r | |
429309e0 | 250 | OPTEE_MESSAGE_ARG *MessageArg;\r |
a0f01e8a SG |
251 | \r |
252 | MessageArg = NULL;\r | |
253 | \r | |
254 | if (OpteeSharedMemoryInformation.Base == 0) {\r | |
255 | DEBUG ((DEBUG_WARN, "OP-TEE not initialized\n"));\r | |
256 | return EFI_NOT_STARTED;\r | |
257 | }\r | |
258 | \r | |
259 | MessageArg = (OPTEE_MESSAGE_ARG *)OpteeSharedMemoryInformation.Base;\r | |
260 | ZeroMem (MessageArg, sizeof (OPTEE_MESSAGE_ARG));\r | |
261 | \r | |
262 | MessageArg->Command = OPTEE_MESSAGE_COMMAND_CLOSE_SESSION;\r | |
263 | MessageArg->Session = Session;\r | |
264 | \r | |
e40f8efb | 265 | OpteeCallWithArg ((UINTN)MessageArg);\r |
a0f01e8a SG |
266 | \r |
267 | return EFI_SUCCESS;\r | |
268 | }\r | |
269 | \r | |
270 | STATIC\r | |
271 | EFI_STATUS\r | |
272 | OpteeToMessageParam (\r | |
429309e0 MK |
273 | OUT OPTEE_MESSAGE_PARAM *MessageParams,\r |
274 | IN UINT32 NumParams,\r | |
275 | IN OPTEE_MESSAGE_PARAM *InParams\r | |
a0f01e8a SG |
276 | )\r |
277 | {\r | |
429309e0 MK |
278 | UINT32 Idx;\r |
279 | UINTN ParamSharedMemoryAddress;\r | |
280 | UINTN SharedMemorySize;\r | |
281 | UINTN Size;\r | |
a0f01e8a SG |
282 | \r |
283 | Size = (sizeof (OPTEE_MESSAGE_ARG) + sizeof (UINT64) - 1) &\r | |
429309e0 | 284 | ~(sizeof (UINT64) - 1);\r |
a0f01e8a | 285 | ParamSharedMemoryAddress = OpteeSharedMemoryInformation.Base + Size;\r |
429309e0 | 286 | SharedMemorySize = OpteeSharedMemoryInformation.Size - Size;\r |
a0f01e8a SG |
287 | \r |
288 | for (Idx = 0; Idx < NumParams; Idx++) {\r | |
429309e0 MK |
289 | CONST OPTEE_MESSAGE_PARAM *InParam;\r |
290 | OPTEE_MESSAGE_PARAM *MessageParam;\r | |
291 | UINT32 Attribute;\r | |
a0f01e8a | 292 | \r |
429309e0 | 293 | InParam = InParams + Idx;\r |
a0f01e8a | 294 | MessageParam = MessageParams + Idx;\r |
429309e0 | 295 | Attribute = InParam->Attribute & OPTEE_MESSAGE_ATTRIBUTE_TYPE_MASK;\r |
a0f01e8a SG |
296 | \r |
297 | switch (Attribute) {\r | |
429309e0 MK |
298 | case OPTEE_MESSAGE_ATTRIBUTE_TYPE_NONE:\r |
299 | MessageParam->Attribute = OPTEE_MESSAGE_ATTRIBUTE_TYPE_NONE;\r | |
300 | ZeroMem (&MessageParam->Union, sizeof (MessageParam->Union));\r | |
301 | break;\r | |
a0f01e8a | 302 | \r |
429309e0 MK |
303 | case OPTEE_MESSAGE_ATTRIBUTE_TYPE_VALUE_INPUT:\r |
304 | case OPTEE_MESSAGE_ATTRIBUTE_TYPE_VALUE_OUTPUT:\r | |
305 | case OPTEE_MESSAGE_ATTRIBUTE_TYPE_VALUE_INOUT:\r | |
306 | MessageParam->Attribute = Attribute;\r | |
307 | MessageParam->Union.Value.A = InParam->Union.Value.A;\r | |
308 | MessageParam->Union.Value.B = InParam->Union.Value.B;\r | |
309 | MessageParam->Union.Value.C = InParam->Union.Value.C;\r | |
310 | break;\r | |
a0f01e8a | 311 | \r |
429309e0 MK |
312 | case OPTEE_MESSAGE_ATTRIBUTE_TYPE_MEMORY_INPUT:\r |
313 | case OPTEE_MESSAGE_ATTRIBUTE_TYPE_MEMORY_OUTPUT:\r | |
314 | case OPTEE_MESSAGE_ATTRIBUTE_TYPE_MEMORY_INOUT:\r | |
315 | MessageParam->Attribute = Attribute;\r | |
316 | \r | |
317 | if (InParam->Union.Memory.Size > SharedMemorySize) {\r | |
318 | return EFI_OUT_OF_RESOURCES;\r | |
319 | }\r | |
320 | \r | |
321 | CopyMem (\r | |
322 | (VOID *)ParamSharedMemoryAddress,\r | |
323 | (VOID *)(UINTN)InParam->Union.Memory.BufferAddress,\r | |
324 | InParam->Union.Memory.Size\r | |
325 | );\r | |
326 | MessageParam->Union.Memory.BufferAddress = (UINT64)ParamSharedMemoryAddress;\r | |
327 | MessageParam->Union.Memory.Size = InParam->Union.Memory.Size;\r | |
328 | \r | |
329 | Size = (InParam->Union.Memory.Size + sizeof (UINT64) - 1) &\r | |
330 | ~(sizeof (UINT64) - 1);\r | |
331 | ParamSharedMemoryAddress += Size;\r | |
332 | SharedMemorySize -= Size;\r | |
333 | break;\r | |
a0f01e8a | 334 | \r |
429309e0 MK |
335 | default:\r |
336 | return EFI_INVALID_PARAMETER;\r | |
a0f01e8a SG |
337 | }\r |
338 | }\r | |
339 | \r | |
340 | return EFI_SUCCESS;\r | |
341 | }\r | |
342 | \r | |
343 | STATIC\r | |
344 | EFI_STATUS\r | |
345 | OpteeFromMessageParam (\r | |
429309e0 MK |
346 | OUT OPTEE_MESSAGE_PARAM *OutParams,\r |
347 | IN UINT32 NumParams,\r | |
348 | IN OPTEE_MESSAGE_PARAM *MessageParams\r | |
a0f01e8a SG |
349 | )\r |
350 | {\r | |
429309e0 | 351 | UINT32 Idx;\r |
a0f01e8a SG |
352 | \r |
353 | for (Idx = 0; Idx < NumParams; Idx++) {\r | |
429309e0 MK |
354 | OPTEE_MESSAGE_PARAM *OutParam;\r |
355 | CONST OPTEE_MESSAGE_PARAM *MessageParam;\r | |
356 | UINT32 Attribute;\r | |
a0f01e8a | 357 | \r |
429309e0 | 358 | OutParam = OutParams + Idx;\r |
a0f01e8a | 359 | MessageParam = MessageParams + Idx;\r |
429309e0 | 360 | Attribute = MessageParam->Attribute & OPTEE_MESSAGE_ATTRIBUTE_TYPE_MASK;\r |
a0f01e8a SG |
361 | \r |
362 | switch (Attribute) {\r | |
429309e0 MK |
363 | case OPTEE_MESSAGE_ATTRIBUTE_TYPE_NONE:\r |
364 | OutParam->Attribute = OPTEE_MESSAGE_ATTRIBUTE_TYPE_NONE;\r | |
365 | ZeroMem (&OutParam->Union, sizeof (OutParam->Union));\r | |
366 | break;\r | |
a0f01e8a | 367 | \r |
429309e0 MK |
368 | case OPTEE_MESSAGE_ATTRIBUTE_TYPE_VALUE_INPUT:\r |
369 | case OPTEE_MESSAGE_ATTRIBUTE_TYPE_VALUE_OUTPUT:\r | |
370 | case OPTEE_MESSAGE_ATTRIBUTE_TYPE_VALUE_INOUT:\r | |
371 | OutParam->Attribute = Attribute;\r | |
372 | OutParam->Union.Value.A = MessageParam->Union.Value.A;\r | |
373 | OutParam->Union.Value.B = MessageParam->Union.Value.B;\r | |
374 | OutParam->Union.Value.C = MessageParam->Union.Value.C;\r | |
375 | break;\r | |
a0f01e8a | 376 | \r |
429309e0 MK |
377 | case OPTEE_MESSAGE_ATTRIBUTE_TYPE_MEMORY_INPUT:\r |
378 | case OPTEE_MESSAGE_ATTRIBUTE_TYPE_MEMORY_OUTPUT:\r | |
379 | case OPTEE_MESSAGE_ATTRIBUTE_TYPE_MEMORY_INOUT:\r | |
380 | OutParam->Attribute = Attribute;\r | |
381 | \r | |
382 | if (MessageParam->Union.Memory.Size > OutParam->Union.Memory.Size) {\r | |
383 | return EFI_BAD_BUFFER_SIZE;\r | |
384 | }\r | |
385 | \r | |
386 | CopyMem (\r | |
387 | (VOID *)(UINTN)OutParam->Union.Memory.BufferAddress,\r | |
388 | (VOID *)(UINTN)MessageParam->Union.Memory.BufferAddress,\r | |
389 | MessageParam->Union.Memory.Size\r | |
390 | );\r | |
391 | OutParam->Union.Memory.Size = MessageParam->Union.Memory.Size;\r | |
392 | break;\r | |
a0f01e8a | 393 | \r |
429309e0 MK |
394 | default:\r |
395 | return EFI_INVALID_PARAMETER;\r | |
a0f01e8a SG |
396 | }\r |
397 | }\r | |
398 | \r | |
399 | return EFI_SUCCESS;\r | |
400 | }\r | |
401 | \r | |
402 | EFI_STATUS\r | |
403 | EFIAPI\r | |
404 | OpteeInvokeFunction (\r | |
429309e0 | 405 | IN OUT OPTEE_INVOKE_FUNCTION_ARG *InvokeFunctionArg\r |
a0f01e8a SG |
406 | )\r |
407 | {\r | |
429309e0 MK |
408 | EFI_STATUS Status;\r |
409 | OPTEE_MESSAGE_ARG *MessageArg;\r | |
a0f01e8a SG |
410 | \r |
411 | MessageArg = NULL;\r | |
412 | \r | |
413 | if (OpteeSharedMemoryInformation.Base == 0) {\r | |
414 | DEBUG ((DEBUG_WARN, "OP-TEE not initialized\n"));\r | |
415 | return EFI_NOT_STARTED;\r | |
416 | }\r | |
417 | \r | |
418 | MessageArg = (OPTEE_MESSAGE_ARG *)OpteeSharedMemoryInformation.Base;\r | |
419 | ZeroMem (MessageArg, sizeof (OPTEE_MESSAGE_ARG));\r | |
420 | \r | |
429309e0 | 421 | MessageArg->Command = OPTEE_MESSAGE_COMMAND_INVOKE_FUNCTION;\r |
a0f01e8a | 422 | MessageArg->Function = InvokeFunctionArg->Function;\r |
429309e0 | 423 | MessageArg->Session = InvokeFunctionArg->Session;\r |
a0f01e8a SG |
424 | \r |
425 | Status = OpteeToMessageParam (\r | |
426 | MessageArg->Params,\r | |
427 | OPTEE_MAX_CALL_PARAMS,\r | |
428 | InvokeFunctionArg->Params\r | |
429 | );\r | |
430 | if (Status) {\r | |
431 | return Status;\r | |
432 | }\r | |
433 | \r | |
434 | MessageArg->NumParams = OPTEE_MAX_CALL_PARAMS;\r | |
435 | \r | |
d61b2e28 | 436 | if (OpteeCallWithArg ((UINTN)MessageArg) != 0) {\r |
429309e0 | 437 | MessageArg->Return = OPTEE_ERROR_COMMUNICATION;\r |
a0f01e8a SG |
438 | MessageArg->ReturnOrigin = OPTEE_ORIGIN_COMMUNICATION;\r |
439 | }\r | |
440 | \r | |
441 | if (OpteeFromMessageParam (\r | |
442 | InvokeFunctionArg->Params,\r | |
443 | OPTEE_MAX_CALL_PARAMS,\r | |
444 | MessageArg->Params\r | |
429309e0 MK |
445 | ) != 0)\r |
446 | {\r | |
447 | MessageArg->Return = OPTEE_ERROR_COMMUNICATION;\r | |
a0f01e8a SG |
448 | MessageArg->ReturnOrigin = OPTEE_ORIGIN_COMMUNICATION;\r |
449 | }\r | |
450 | \r | |
429309e0 | 451 | InvokeFunctionArg->Return = MessageArg->Return;\r |
a0f01e8a SG |
452 | InvokeFunctionArg->ReturnOrigin = MessageArg->ReturnOrigin;\r |
453 | \r | |
454 | return EFI_SUCCESS;\r | |
455 | }\r |