| 1 | /** @file\r |
| 2 | \r |
| 3 | Copyright (c) 2008-2009, Apple Inc. All rights reserved.\r |
| 4 | \r |
| 5 | All rights reserved. This program and the accompanying materials\r |
| 6 | are licensed and made available under the terms and conditions of the BSD License\r |
| 7 | which accompanies this distribution. The full text of the license may be found at\r |
| 8 | http://opensource.org/licenses/bsd-license.php\r |
| 9 | \r |
| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 12 | \r |
| 13 | **/\r |
| 14 | \r |
| 15 | #include <Uefi.h>\r |
| 16 | \r |
| 17 | #include <Library/CacheMaintenanceLib.h>\r |
| 18 | #include <Library/DebugLib.h>\r |
| 19 | #include <Library/UefiBootServicesTableLib.h>\r |
| 20 | \r |
| 21 | #include <Protocol/Cpu.h>\r |
| 22 | #include <Protocol/DebugSupport.h>\r |
| 23 | #include <Protocol/TimerDebugSupport.h>\r |
| 24 | \r |
| 25 | EFI_STATUS\r |
| 26 | EFIAPI\r |
| 27 | DebugSupportGetMaximumProcessorIndex (\r |
| 28 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r |
| 29 | OUT UINTN *MaxProcessorIndex\r |
| 30 | )\r |
| 31 | {\r |
| 32 | if (MaxProcessorIndex == NULL) {\r |
| 33 | return EFI_INVALID_PARAMETER;\r |
| 34 | }\r |
| 35 | \r |
| 36 | *MaxProcessorIndex = 0;\r |
| 37 | \r |
| 38 | return EFI_SUCCESS;\r |
| 39 | }\r |
| 40 | \r |
| 41 | EFI_STATUS\r |
| 42 | EFIAPI\r |
| 43 | DebugSupportRegisterPeriodicCallback (\r |
| 44 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r |
| 45 | IN UINTN ProcessorIndex,\r |
| 46 | IN EFI_PERIODIC_CALLBACK PeriodicCallback\r |
| 47 | )\r |
| 48 | {\r |
| 49 | TIMER_DEBUG_SUPPORT_PROTOCOL *Timer;\r |
| 50 | EFI_STATUS Status;\r |
| 51 | \r |
| 52 | Status = gBS->LocateProtocol(&gTimerDebugSupportProtocolGuid, NULL, (VOID **)&Timer);\r |
| 53 | if (EFI_ERROR(Status)) {\r |
| 54 | return Status;\r |
| 55 | }\r |
| 56 | \r |
| 57 | Status = Timer->RegisterPeriodicCallback(Timer, PeriodicCallback);\r |
| 58 | \r |
| 59 | return Status;\r |
| 60 | }\r |
| 61 | \r |
| 62 | EFI_STATUS\r |
| 63 | EFIAPI\r |
| 64 | DebugSupportRegisterExceptionCallback (\r |
| 65 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r |
| 66 | IN UINTN ProcessorIndex,\r |
| 67 | IN EFI_EXCEPTION_CALLBACK ExceptionCallback,\r |
| 68 | IN EFI_EXCEPTION_TYPE ExceptionType\r |
| 69 | )\r |
| 70 | {\r |
| 71 | EFI_CPU_ARCH_PROTOCOL *Cpu;\r |
| 72 | EFI_STATUS Status;\r |
| 73 | \r |
| 74 | Status = gBS->LocateProtocol(&gEfiCpuArchProtocolGuid, NULL, (VOID **)&Cpu);\r |
| 75 | if (EFI_ERROR(Status)) {\r |
| 76 | return Status;\r |
| 77 | }\r |
| 78 | \r |
| 79 | Status = Cpu->RegisterInterruptHandler(Cpu, ExceptionType, (EFI_CPU_INTERRUPT_HANDLER)ExceptionCallback);\r |
| 80 | \r |
| 81 | return Status;\r |
| 82 | }\r |
| 83 | \r |
| 84 | EFI_STATUS\r |
| 85 | EFIAPI\r |
| 86 | DebugSupportInvalidateInstructionCache (\r |
| 87 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r |
| 88 | IN UINTN ProcessorIndex,\r |
| 89 | IN VOID *Start,\r |
| 90 | IN UINT64 Length\r |
| 91 | )\r |
| 92 | {\r |
| 93 | InvalidateInstructionCacheRange(Start, Length);\r |
| 94 | return EFI_SUCCESS;\r |
| 95 | }\r |
| 96 | \r |
| 97 | EFI_DEBUG_SUPPORT_PROTOCOL mDebugSupport = {\r |
| 98 | IsaArm,\r |
| 99 | DebugSupportGetMaximumProcessorIndex,\r |
| 100 | DebugSupportRegisterPeriodicCallback,\r |
| 101 | DebugSupportRegisterExceptionCallback,\r |
| 102 | DebugSupportInvalidateInstructionCache\r |
| 103 | };\r |
| 104 | \r |
| 105 | EFI_STATUS\r |
| 106 | DebugSupportDxeInitialize (\r |
| 107 | IN EFI_HANDLE ImageHandle,\r |
| 108 | IN EFI_SYSTEM_TABLE *SystemTable\r |
| 109 | )\r |
| 110 | {\r |
| 111 | EFI_STATUS Status;\r |
| 112 | EFI_HANDLE Handle = NULL;\r |
| 113 | \r |
| 114 | ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiDebugSupportProtocolGuid);\r |
| 115 | Status = gBS->InstallMultipleProtocolInterfaces(&Handle, &gEfiDebugSupportProtocolGuid, &mDebugSupport, NULL);\r |
| 116 | \r |
| 117 | return Status;\r |
| 118 | }\r |
| 119 | \r |