projects / mirror_edk2.git / blame
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| 4c6351db MK |
1 | /** @file\r |
| 2 | The CPU specific programming for PiSmmCpuDxeSmm module when STM support\r | |
| 3 | is not included.\r | |
| 4 | \r | |
| 5 | Copyright (c) 2010 - 2016, Intel Corporation. All rights reserved.<BR>\r | |
| 0acd8697 | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| 4c6351db MK |
7 | \r |
| 8 | **/\r | |
| 9 | \r | |
| 10 | #include <PiSmm.h>\r | |
| 11 | #include <Library/SmmCpuFeaturesLib.h>\r | |
| 12 | \r | |
| 13 | /**\r | |
| 14 | Internal worker function that is called to complete CPU initialization at the\r | |
| d0c80b8a | 15 | end of SmmCpuFeaturesInitializeProcessor().\r |
| 4c6351db MK |
16 | \r |
| 17 | **/\r | |
| 18 | VOID\r | |
| 19 | FinishSmmCpuFeaturesInitializeProcessor (\r | |
| 20 | VOID\r | |
| 21 | )\r | |
| 22 | {\r | |
| 23 | }\r | |
| 24 | \r | |
| 25 | /**\r | |
| 26 | Return the size, in bytes, of a custom SMI Handler in bytes. If 0 is\r | |
| 27 | returned, then a custom SMI handler is not provided by this library,\r | |
| 28 | and the default SMI handler must be used.\r | |
| 29 | \r | |
| 30 | @retval 0 Use the default SMI handler.\r | |
| 31 | @retval > 0 Use the SMI handler installed by SmmCpuFeaturesInstallSmiHandler()\r | |
| 32 | The caller is required to allocate enough SMRAM for each CPU to\r | |
| 33 | support the size of the custom SMI handler.\r | |
| 34 | **/\r | |
| 35 | UINTN\r | |
| 36 | EFIAPI\r | |
| 37 | SmmCpuFeaturesGetSmiHandlerSize (\r | |
| 38 | VOID\r | |
| 39 | )\r | |
| 40 | {\r | |
| 41 | return 0;\r | |
| 42 | }\r | |
| 43 | \r | |
| 44 | /**\r | |
| 45 | Install a custom SMI handler for the CPU specified by CpuIndex. This function\r | |
| 46 | is only called if SmmCpuFeaturesGetSmiHandlerSize() returns a size is greater\r | |
| 47 | than zero and is called by the CPU that was elected as monarch during System\r | |
| 48 | Management Mode initialization.\r | |
| 49 | \r | |
| 50 | @param[in] CpuIndex The index of the CPU to install the custom SMI handler.\r | |
| 51 | The value must be between 0 and the NumberOfCpus field\r | |
| 52 | in the System Management System Table (SMST).\r | |
| 53 | @param[in] SmBase The SMBASE address for the CPU specified by CpuIndex.\r | |
| 54 | @param[in] SmiStack The stack to use when an SMI is processed by the\r | |
| 55 | the CPU specified by CpuIndex.\r | |
| 56 | @param[in] StackSize The size, in bytes, if the stack used when an SMI is\r | |
| 57 | processed by the CPU specified by CpuIndex.\r | |
| 58 | @param[in] GdtBase The base address of the GDT to use when an SMI is\r | |
| 59 | processed by the CPU specified by CpuIndex.\r | |
| 60 | @param[in] GdtSize The size, in bytes, of the GDT used when an SMI is\r | |
| 61 | processed by the CPU specified by CpuIndex.\r | |
| 62 | @param[in] IdtBase The base address of the IDT to use when an SMI is\r | |
| 63 | processed by the CPU specified by CpuIndex.\r | |
| 64 | @param[in] IdtSize The size, in bytes, of the IDT used when an SMI is\r | |
| 65 | processed by the CPU specified by CpuIndex.\r | |
| 66 | @param[in] Cr3 The base address of the page tables to use when an SMI\r | |
| 67 | is processed by the CPU specified by CpuIndex.\r | |
| 68 | **/\r | |
| 69 | VOID\r | |
| 70 | EFIAPI\r | |
| 71 | SmmCpuFeaturesInstallSmiHandler (\r | |
| 72 | IN UINTN CpuIndex,\r | |
| 73 | IN UINT32 SmBase,\r | |
| 74 | IN VOID *SmiStack,\r | |
| 75 | IN UINTN StackSize,\r | |
| 76 | IN UINTN GdtBase,\r | |
| 77 | IN UINTN GdtSize,\r | |
| 78 | IN UINTN IdtBase,\r | |
| 79 | IN UINTN IdtSize,\r | |
| 80 | IN UINT32 Cr3\r | |
| 81 | )\r | |
| 82 | {\r | |
| 83 | }\r |