1 /** @file 2 SMM profile header file. 3 4 Copyright (c) 2012 - 2016, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #ifndef _SMM_PROFILE_H_ 16 #define _SMM_PROFILE_H_ 17 18 #include "SmmProfileInternal.h" 19 20 // 21 // External functions 22 // 23 24 /** 25 Initialize processor environment for SMM profile. 26 27 @param CpuIndex The index of the processor. 28 29 **/ 30 VOID 31 ActivateSmmProfile ( 32 IN UINTN CpuIndex 33 ); 34 35 /** 36 Initialize SMM profile in SMM CPU entry point. 37 38 @param[in] Cr3 The base address of the page tables to use in SMM. 39 40 **/ 41 VOID 42 InitSmmProfile ( 43 UINT32 Cr3 44 ); 45 46 /** 47 Increase SMI number in each SMI entry. 48 49 **/ 50 VOID 51 SmmProfileRecordSmiNum ( 52 VOID 53 ); 54 55 /** 56 The Page fault handler to save SMM profile data. 57 58 @param Rip The RIP when exception happens. 59 @param ErrorCode The Error code of exception. 60 61 **/ 62 VOID 63 SmmProfilePFHandler ( 64 UINTN Rip, 65 UINTN ErrorCode 66 ); 67 68 /** 69 Updates page table to make some memory ranges (like system memory) absent 70 and make some memory ranges (like MMIO) present and execute disable. It also 71 update 2MB-page to 4KB-page for some memory ranges. 72 73 **/ 74 VOID 75 SmmProfileStart ( 76 VOID 77 ); 78 79 /** 80 Page fault IDT handler for SMM Profile. 81 82 **/ 83 VOID 84 EFIAPI 85 PageFaultIdtHandlerSmmProfile ( 86 VOID 87 ); 88 89 90 /** 91 Check if XD feature is supported by a processor. 92 93 **/ 94 VOID 95 CheckFeatureSupported ( 96 VOID 97 ); 98 99 /** 100 Update page table according to protected memory ranges and the 4KB-page mapped memory ranges. 101 102 **/ 103 VOID 104 InitPaging ( 105 VOID 106 ); 107 108 /** 109 Get CPU Index from APIC ID. 110 111 **/ 112 UINTN 113 GetCpuIndex ( 114 VOID 115 ); 116 117 // 118 // The flag indicates if execute-disable is supported by processor. 119 // 120 extern BOOLEAN mXdSupported; 121 // 122 // The flag indicates if execute-disable is enabled on processor. 123 // 124 extern BOOLEAN mXdEnabled; 125 126 #endif // _SMM_PROFILE_H_ 127
