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1 | /** @file\r |
2 | File to contain all the hardware specific stuff for the Smm Sw dispatch protocol.\r | |
3 | \r | |
4 | Copyright (c) 2013-2015 Intel Corporation.\r | |
5 | \r | |
6 | This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | \r | |
15 | **/\r | |
16 | \r | |
17 | //\r | |
18 | // Include common header file for this module.\r | |
19 | //\r | |
20 | #include "CommonHeader.h"\r | |
21 | \r | |
22 | #include "QNCSmmHelpers.h"\r | |
23 | \r | |
24 | EFI_SMM_CPU_PROTOCOL *mSmmCpu = NULL;\r | |
25 | \r | |
26 | CONST QNC_SMM_SOURCE_DESC SW_SOURCE_DESC = {\r | |
27 | QNC_SMM_NO_FLAGS,\r | |
28 | {\r | |
29 | {\r | |
30 | {GPE_ADDR_TYPE, {R_QNC_GPE0BLK_SMIE}}, S_QNC_GPE0BLK_SMIE, N_QNC_GPE0BLK_SMIE_APM\r | |
31 | },\r | |
32 | NULL_BIT_DESC_INITIALIZER\r | |
33 | },\r | |
34 | {\r | |
35 | {\r | |
36 | {GPE_ADDR_TYPE, {R_QNC_GPE0BLK_SMIS}}, S_QNC_GPE0BLK_SMIS, N_QNC_GPE0BLK_SMIS_APM\r | |
37 | }\r | |
38 | }\r | |
39 | };\r | |
40 | \r | |
41 | VOID\r | |
42 | SwGetContext(\r | |
43 | IN DATABASE_RECORD *Record,\r | |
44 | OUT QNC_SMM_CONTEXT *Context\r | |
45 | )\r | |
46 | {\r | |
47 | Context->Sw.SwSmiInputValue = IoRead8 (R_APM_CNT);\r | |
48 | }\r | |
49 | \r | |
50 | BOOLEAN\r | |
51 | SwCmpContext (\r | |
52 | IN QNC_SMM_CONTEXT *Context1,\r | |
53 | IN QNC_SMM_CONTEXT *Context2\r | |
54 | )\r | |
55 | {\r | |
56 | return (BOOLEAN)( Context1->Sw.SwSmiInputValue == Context2->Sw.SwSmiInputValue );\r | |
57 | }\r | |
58 | \r | |
59 | VOID\r | |
60 | SwGetBuffer (\r | |
61 | IN DATABASE_RECORD * Record\r | |
62 | )\r | |
63 | {\r | |
64 | EFI_STATUS Status;\r | |
65 | UINTN Index;\r | |
66 | UINTN CpuIndex;\r | |
67 | EFI_SMM_SAVE_STATE_IO_INFO IoState;\r | |
68 | \r | |
69 | //\r | |
70 | // Locate SMM CPU protocol to retrieve the CPU save state\r | |
71 | //\r | |
72 | if (mSmmCpu == NULL) {\r | |
73 | Status = gSmst->SmmLocateProtocol (&gEfiSmmCpuProtocolGuid, NULL, (VOID **) &mSmmCpu);\r | |
74 | ASSERT_EFI_ERROR (Status);\r | |
75 | }\r | |
76 | \r | |
77 | //\r | |
78 | // Find the CPU which generated the software SMI\r | |
79 | //\r | |
80 | CpuIndex = 0;\r | |
81 | for (Index = 0; Index < gSmst->NumberOfCpus; Index++) {\r | |
82 | Status = mSmmCpu->ReadSaveState (\r | |
83 | mSmmCpu,\r | |
84 | sizeof (EFI_SMM_SAVE_STATE_IO_INFO),\r | |
85 | EFI_SMM_SAVE_STATE_REGISTER_IO,\r | |
86 | Index,\r | |
87 | &IoState\r | |
88 | );\r | |
89 | if (!EFI_ERROR (Status) && (IoState.IoPort == R_APM_CNT)) {\r | |
90 | CpuIndex = Index;\r | |
91 | break;\r | |
92 | }\r | |
93 | }\r | |
94 | \r | |
95 | Record->CommBuffer.Sw.SwSmiCpuIndex = CpuIndex;\r | |
96 | }\r |