--- /dev/null
+/** @file\r
+ C Entry point for the SEC. First C code after the reset vector.\r
+\r
+ Copyright (c) 2008-2009, Apple Inc. All rights reserved.\r
+ \r
+ All rights reserved. This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions of the BSD License\r
+ which accompanies this distribution. The full text of the license may be found at\r
+ http://opensource.org/licenses/bsd-license.php\r
+\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include <PiPei.h>\r
+\r
+#include <Library/DebugLib.h>\r
+#include <Library/PrePiLib.h>\r
+#include <Library/PcdLib.h>\r
+#include <Library/IoLib.h>\r
+#include <Library/ArmLib.h>\r
+#include <Library/PeCoffGetEntryPointLib.h>\r
+\r
+#include <Ppi/GuidedSectionExtraction.h>\r
+#include <Guid/LzmaDecompress.h>\r
+\r
+#include "LzmaDecompress.h"\r
+\r
+VOID\r
+EFIAPI \r
+_ModuleEntryPoint(\r
+ VOID\r
+ );\r
+\r
+CHAR8 *\r
+DeCygwinPathIfNeeded (\r
+ IN CHAR8 *Name\r
+ );\r
+\r
+RETURN_STATUS\r
+EFIAPI\r
+SerialPortInitialize (\r
+ VOID\r
+ );\r
+ \r
+ \r
+VOID\r
+UartInit (\r
+ VOID\r
+ )\r
+{\r
+ // SEC phase needs to run library constructors by hand.\r
+ // This assumes we are linked agains the SerialLib\r
+ // In non SEC modules the init call is in autogenerated code.\r
+ SerialPortInitialize ();\r
+}\r
+\r
+VOID\r
+InitCache (\r
+ IN UINT32 MemoryBase,\r
+ IN UINT32 MemoryLength\r
+ );\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+ExtractGuidedSectionLibConstructor (\r
+ VOID\r
+ );\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+LzmaDecompressLibConstructor (\r
+ VOID\r
+ );\r
+\r
+/**\r
+ If the build is done on cygwin the paths are cygpaths. \r
+ /cygdrive/c/tmp.txt vs c:\tmp.txt so we need to convert\r
+ them to work with RVD commands\r
+\r
+ This is just code to help print out RVD symbol load command.\r
+ If you build with cygwin paths aren't compatible with RVD.\r
+\r
+ @param Name Path to convert if needed\r
+\r
+**/\r
+CHAR8 *\r
+SecDeCygwinPathIfNeeded (\r
+ IN CHAR8 *Name\r
+ )\r
+{\r
+ CHAR8 *Ptr;\r
+ UINTN Index;\r
+ UINTN Len;\r
+ \r
+ Ptr = AsciiStrStr (Name, "/cygdrive/");\r
+ if (Ptr == NULL) {\r
+ return Name;\r
+ }\r
+ \r
+ Len = AsciiStrLen (Ptr);\r
+ \r
+ // convert "/cygdrive" to spaces\r
+ for (Index = 0; Index < 9; Index++) {\r
+ Ptr[Index] = ' ';\r
+ }\r
+\r
+ // convert /c to c:\r
+ Ptr[9] = Ptr[10];\r
+ Ptr[10] = ':';\r
+ \r
+ // switch path seperators\r
+ for (Index = 11; Index < Len; Index++) {\r
+ if (Ptr[Index] == '/') {\r
+ Ptr[Index] = '\\' ;\r
+ }\r
+ }\r
+\r
+ return Name;\r
+}\r
+\r
+\r
+VOID\r
+CEntryPoint (\r
+ IN VOID *MemoryBase,\r
+ IN UINTN MemorySize,\r
+ IN VOID *StackBase,\r
+ IN UINTN StackSize\r
+ )\r
+{\r
+ VOID *HobBase;\r
+\r
+ // Build a basic HOB list\r
+ HobBase = (VOID *)(UINTN)(FixedPcdGet32(PcdEmbeddedFdBaseAddress) + FixedPcdGet32(PcdEmbeddedFdSize));\r
+ CreateHobList (MemoryBase, MemorySize, HobBase, StackBase);\r
+\r
+\r
+ // Enable program flow prediction, if supported.\r
+ ArmEnableBranchPrediction ();\r
+\r
+ // Initialize CPU cache\r
+ InitCache ((UINT32)MemoryBase, (UINT32)MemorySize);\r
+\r
+ // Add memory allocation hob for relocated FD\r
+ BuildMemoryAllocationHob (FixedPcdGet32(PcdEmbeddedFdBaseAddress), FixedPcdGet32(PcdEmbeddedFdSize), EfiBootServicesData);\r
+\r
+ // Add the FVs to the hob list\r
+ BuildFvHob (PcdGet32(PcdFlashFvMainBase), PcdGet32(PcdFlashFvMainSize));\r
+\r
+ // Start talking\r
+ UartInit ();\r
+ DEBUG ((EFI_D_ERROR, "UART Enabled\n"));\r
+\r
+ DEBUG_CODE_BEGIN ();\r
+ //\r
+ // On a debug build print out information about the SEC. This is really info about\r
+ // the PE/COFF file we are currently running from. Useful for loading symbols in a\r
+ // debugger. Remember our image is really part of the FV.\r
+ //\r
+ RETURN_STATUS Status;\r
+ EFI_PEI_FV_HANDLE VolumeHandle;\r
+ EFI_PEI_FILE_HANDLE FileHandle;\r
+ VOID *PeCoffImage;\r
+ UINT32 Offset;\r
+ CHAR8 *FilePath;\r
+ FfsAnyFvFindFirstFile (EFI_FV_FILETYPE_SECURITY_CORE, &VolumeHandle, &FileHandle);\r
+ Status = FfsFindSectionData (EFI_SECTION_TE, FileHandle, &PeCoffImage);\r
+ if (EFI_ERROR (Status)) {\r
+ // Usually is a TE (PI striped down PE/COFF), but could be a full PE/COFF\r
+ Status = FfsFindSectionData (EFI_SECTION_PE32, FileHandle, &PeCoffImage);\r
+ }\r
+ if (!EFI_ERROR (Status)) {\r
+ Offset = PeCoffGetSizeOfHeaders (PeCoffImage);\r
+ FilePath = PeCoffLoaderGetPdbPointer (PeCoffImage);\r
+ if (FilePath != NULL) {\r
+ \r
+ // \r
+ // In general you should never have to use #ifdef __CC_ARM in the code. It\r
+ // is hidden in the away in the MdePkg. But here we would like to print differnt things\r
+ // for different toolchains. \r
+ //\r
+#ifdef __CC_ARM\r
+ // Print out the command for the RVD debugger to load symbols for this image\r
+ DEBUG ((EFI_D_ERROR, "load /a /ni /np %a &0x%08x\n", SecDeCygwinPathIfNeeded (FilePath), (CHAR8 *)PeCoffImage + Offset));\r
+#elif __GNUC__\r
+ // This may not work correctly if you generate PE/COFF directlyas then the Offset would not be required\r
+ DEBUG ((EFI_D_ERROR, "add-symbol-file %a 0x%08x\n", FilePath, PeCoffImage + Offset));\r
+#else\r
+ DEBUG ((EFI_D_ERROR, "SEC starts at 0x%08x with an entry point at 0x%08x %a\n", PeCoffImage, _ModuleEntryPoint, FilePath));\r
+#endif\r
+ }\r
+ }\r
+\r
+ \r
+ DEBUG_CODE_END ();\r
+\r
+\r
+ // SEC phase needs to run library constructors by hand.\r
+ ExtractGuidedSectionLibConstructor ();\r
+ LzmaDecompressLibConstructor ();\r
+\r
+ // Build HOBs to pass up our version of stuff the DXE Core needs to save space\r
+ BuildPeCoffLoaderHob ();\r
+ BuildExtractSectionHob (\r
+ &gLzmaCustomDecompressGuid,\r
+ LzmaGuidedSectionGetInfo,\r
+ LzmaGuidedSectionExtraction\r
+ );\r
+\r
+ // Assume the FV that contains the SEC (our code) also contains a compressed FV.\r
+ DecompressFirstFv ();\r
+\r
+ // Load the DXE Core and transfer control to it\r
+ LoadDxeCoreFromFv (NULL, 0);\r
+ \r
+ // DXE Core should always load and never return\r
+ ASSERT (FALSE);\r
+}\r
+\r
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