Started working on an ArmEb package. GIC is ported. SEC is a start. Still missing memory map and DRAM init stuff. Hey but it compiles.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10090 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
andrewfish
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ArmEbPkg/Sec/Sec.c
Executable file
220
ArmEbPkg/Sec/Sec.c
Executable file
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/** @file
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C Entry point for the SEC. First C code after the reset vector.
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Copyright (c) 2008-2009, Apple Inc. All rights reserved.
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiPei.h>
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#include <Library/DebugLib.h>
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#include <Library/PrePiLib.h>
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#include <Library/PcdLib.h>
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#include <Library/IoLib.h>
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#include <Library/ArmLib.h>
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#include <Library/PeCoffGetEntryPointLib.h>
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#include <Ppi/GuidedSectionExtraction.h>
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#include <Guid/LzmaDecompress.h>
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#include "LzmaDecompress.h"
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VOID
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EFIAPI
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_ModuleEntryPoint(
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VOID
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);
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CHAR8 *
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DeCygwinPathIfNeeded (
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IN CHAR8 *Name
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);
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RETURN_STATUS
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EFIAPI
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SerialPortInitialize (
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VOID
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);
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VOID
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UartInit (
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VOID
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)
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{
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// SEC phase needs to run library constructors by hand.
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// This assumes we are linked agains the SerialLib
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// In non SEC modules the init call is in autogenerated code.
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SerialPortInitialize ();
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}
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VOID
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InitCache (
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IN UINT32 MemoryBase,
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IN UINT32 MemoryLength
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);
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EFI_STATUS
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EFIAPI
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ExtractGuidedSectionLibConstructor (
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VOID
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);
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EFI_STATUS
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EFIAPI
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LzmaDecompressLibConstructor (
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VOID
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);
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/**
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If the build is done on cygwin the paths are cygpaths.
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/cygdrive/c/tmp.txt vs c:\tmp.txt so we need to convert
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them to work with RVD commands
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This is just code to help print out RVD symbol load command.
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If you build with cygwin paths aren't compatible with RVD.
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@param Name Path to convert if needed
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**/
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CHAR8 *
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SecDeCygwinPathIfNeeded (
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IN CHAR8 *Name
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)
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{
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CHAR8 *Ptr;
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UINTN Index;
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UINTN Len;
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Ptr = AsciiStrStr (Name, "/cygdrive/");
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if (Ptr == NULL) {
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return Name;
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}
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Len = AsciiStrLen (Ptr);
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// convert "/cygdrive" to spaces
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for (Index = 0; Index < 9; Index++) {
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Ptr[Index] = ' ';
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}
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// convert /c to c:
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Ptr[9] = Ptr[10];
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Ptr[10] = ':';
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// switch path seperators
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for (Index = 11; Index < Len; Index++) {
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if (Ptr[Index] == '/') {
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Ptr[Index] = '\\' ;
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}
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}
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return Name;
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}
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VOID
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CEntryPoint (
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IN VOID *MemoryBase,
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IN UINTN MemorySize,
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IN VOID *StackBase,
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IN UINTN StackSize
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)
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{
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VOID *HobBase;
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// Build a basic HOB list
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HobBase = (VOID *)(UINTN)(FixedPcdGet32(PcdEmbeddedFdBaseAddress) + FixedPcdGet32(PcdEmbeddedFdSize));
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CreateHobList (MemoryBase, MemorySize, HobBase, StackBase);
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// Enable program flow prediction, if supported.
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ArmEnableBranchPrediction ();
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// Initialize CPU cache
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InitCache ((UINT32)MemoryBase, (UINT32)MemorySize);
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// Add memory allocation hob for relocated FD
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BuildMemoryAllocationHob (FixedPcdGet32(PcdEmbeddedFdBaseAddress), FixedPcdGet32(PcdEmbeddedFdSize), EfiBootServicesData);
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// Add the FVs to the hob list
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BuildFvHob (PcdGet32(PcdFlashFvMainBase), PcdGet32(PcdFlashFvMainSize));
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// Start talking
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UartInit ();
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DEBUG ((EFI_D_ERROR, "UART Enabled\n"));
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DEBUG_CODE_BEGIN ();
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//
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// On a debug build print out information about the SEC. This is really info about
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// the PE/COFF file we are currently running from. Useful for loading symbols in a
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// debugger. Remember our image is really part of the FV.
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//
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RETURN_STATUS Status;
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EFI_PEI_FV_HANDLE VolumeHandle;
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EFI_PEI_FILE_HANDLE FileHandle;
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VOID *PeCoffImage;
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UINT32 Offset;
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CHAR8 *FilePath;
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FfsAnyFvFindFirstFile (EFI_FV_FILETYPE_SECURITY_CORE, &VolumeHandle, &FileHandle);
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Status = FfsFindSectionData (EFI_SECTION_TE, FileHandle, &PeCoffImage);
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if (EFI_ERROR (Status)) {
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// Usually is a TE (PI striped down PE/COFF), but could be a full PE/COFF
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Status = FfsFindSectionData (EFI_SECTION_PE32, FileHandle, &PeCoffImage);
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}
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if (!EFI_ERROR (Status)) {
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Offset = PeCoffGetSizeOfHeaders (PeCoffImage);
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FilePath = PeCoffLoaderGetPdbPointer (PeCoffImage);
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if (FilePath != NULL) {
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//
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// In general you should never have to use #ifdef __CC_ARM in the code. It
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// is hidden in the away in the MdePkg. But here we would like to print differnt things
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// for different toolchains.
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//
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#ifdef __CC_ARM
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// Print out the command for the RVD debugger to load symbols for this image
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DEBUG ((EFI_D_ERROR, "load /a /ni /np %a &0x%08x\n", SecDeCygwinPathIfNeeded (FilePath), (CHAR8 *)PeCoffImage + Offset));
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#elif __GNUC__
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// This may not work correctly if you generate PE/COFF directlyas then the Offset would not be required
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DEBUG ((EFI_D_ERROR, "add-symbol-file %a 0x%08x\n", FilePath, PeCoffImage + Offset));
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#else
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DEBUG ((EFI_D_ERROR, "SEC starts at 0x%08x with an entry point at 0x%08x %a\n", PeCoffImage, _ModuleEntryPoint, FilePath));
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#endif
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}
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}
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DEBUG_CODE_END ();
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// SEC phase needs to run library constructors by hand.
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ExtractGuidedSectionLibConstructor ();
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LzmaDecompressLibConstructor ();
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// Build HOBs to pass up our version of stuff the DXE Core needs to save space
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BuildPeCoffLoaderHob ();
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BuildExtractSectionHob (
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&gLzmaCustomDecompressGuid,
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LzmaGuidedSectionGetInfo,
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LzmaGuidedSectionExtraction
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);
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// Assume the FV that contains the SEC (our code) also contains a compressed FV.
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DecompressFirstFv ();
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// Load the DXE Core and transfer control to it
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LoadDxeCoreFromFv (NULL, 0);
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// DXE Core should always load and never return
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ASSERT (FALSE);
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}
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