InOsEmuPkg: Rename package to EmulatorPkg & Sec to Host
* Rename InOsEmuPkg to EmulatorPkg * Rename Unix/Sec to Unix/Host Signed-off-by: jljusten Reviewed-by: andrewfish Reviewed-by: geekboy15a git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11918 6f19259b-4bc3-4df7-8a09-765794883524
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149
EmulatorPkg/Sec/Sec.c
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149
EmulatorPkg/Sec/Sec.c
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/*++ @file
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Stub SEC that is called from the OS appliation that is the root of the emulator.
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The OS application will call the SEC with the PEI Entry Point API.
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Copyright (c) 2011, Apple Inc. All rights reserved.<BR>
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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 "Sec.h"
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EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI mSecTemporaryRamSupportPpi = {
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SecTemporaryRamSupport
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};
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EFI_PEI_PPI_DESCRIPTOR gPrivateDispatchTable[] = {
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{
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EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
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&gEfiTemporaryRamSupportPpiGuid,
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&mSecTemporaryRamSupportPpi
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}
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};
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/**
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The entry point of PE/COFF Image for the PEI Core, that has been hijacked by this
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SEC that sits on top of an OS application. So the entry and exit of this module
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has the same API.
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This function is the entry point for the PEI Foundation, which allows the SEC phase
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to pass information about the stack, temporary RAM and the Boot Firmware Volume.
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In addition, it also allows the SEC phase to pass services and data forward for use
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during the PEI phase in the form of one or more PPIs.
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There is no limit to the number of additional PPIs that can be passed from SEC into
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the PEI Foundation. As part of its initialization phase, the PEI Foundation will add
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these SEC-hosted PPIs to its PPI database such that both the PEI Foundation and any
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modules can leverage the associated service calls and/or code in these early PPIs.
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This function is required to call ProcessModuleEntryPointList() with the Context
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parameter set to NULL. ProcessModuleEntryPoint() is never expected to return.
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The PEI Core is responsible for calling ProcessLibraryConstructorList() as soon as
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the PEI Services Table and the file handle for the PEI Core itself have been established.
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If ProcessModuleEntryPointList() returns, then ASSERT() and halt the system.
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@param SecCoreData Points to a data structure containing information about the PEI
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core's operating environment, such as the size and location of
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temporary RAM, the stack location and the BFV location.
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@param PpiList Points to a list of one or more PPI descriptors to be installed
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initially by the PEI core. An empty PPI list consists of a single
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descriptor with the end-tag EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST.
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As part of its initialization phase, the PEI Foundation will add
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these SEC-hosted PPIs to its PPI database such that both the PEI
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Foundation and any modules can leverage the associated service calls
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and/or code in these early PPIs.
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**/
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VOID
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EFIAPI
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_ModuleEntryPoint (
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IN EFI_SEC_PEI_HAND_OFF *SecCoreData,
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IN EFI_PEI_PPI_DESCRIPTOR *PpiList
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)
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{
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EFI_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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EFI_PEI_CORE_ENTRY_POINT EntryPoint;
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EFI_PEI_PPI_DESCRIPTOR *Ppi;
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EFI_PEI_PPI_DESCRIPTOR *SecPpiList;
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UINTN SecReseveredMemorySize;
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UINTN Index;
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EMU_MAGIC_PAGE()->PpiList = PpiList;
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ProcessLibraryConstructorList ();
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DEBUG ((EFI_D_ERROR, "SEC Has Started\n"));
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//
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// Add Our PPIs to the list
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//
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SecReseveredMemorySize = sizeof (gPrivateDispatchTable);
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for (Ppi = PpiList, Index = 1; ; Ppi++, Index++) {
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SecReseveredMemorySize += sizeof (EFI_PEI_PPI_DESCRIPTOR);
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if ((Ppi->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) == EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) {
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// Since we are appending, need to clear out privious list terminator.
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Ppi->Flags &= ~EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST;
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break;
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}
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}
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// Keep everything on a good alignment
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SecReseveredMemorySize = ALIGN_VALUE (SecReseveredMemorySize, CPU_STACK_ALIGNMENT);
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#if 0
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// Tell the PEI Core to not use our buffer in temp RAM
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SecPpiList = (EFI_PEI_PPI_DESCRIPTOR *)SecCoreData->PeiTemporaryRamBase;
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SecCoreData->PeiTemporaryRamBase = (VOID *)((UINTN)SecCoreData->PeiTemporaryRamBase + SecReseveredMemorySize);
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SecCoreData->PeiTemporaryRamSize -= SecReseveredMemorySize;
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#else
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{
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//
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// When I subtrack from SecCoreData->PeiTemporaryRamBase PEI Core crashes? Either there is a bug
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// or I don't understand temp RAM correctly?
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//
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EFI_PEI_PPI_DESCRIPTOR PpiArray[10];
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SecPpiList = &PpiArray[0];
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ASSERT (sizeof (PpiArray) >= SecReseveredMemorySize);
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}
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#endif
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// Copy existing list, and append our entries.
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CopyMem (SecPpiList, PpiList, sizeof (EFI_PEI_PPI_DESCRIPTOR) * Index);
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CopyMem (&SecPpiList[Index], gPrivateDispatchTable, sizeof (gPrivateDispatchTable));
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// Find PEI Core and transfer control
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VolumeHandle = (EFI_PEI_FV_HANDLE)(UINTN)SecCoreData->BootFirmwareVolumeBase;
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FileHandle = NULL;
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Status = PeiServicesFfsFindNextFile (EFI_FV_FILETYPE_PEI_CORE, VolumeHandle, &FileHandle);
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ASSERT_EFI_ERROR (Status);
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Status = PeiServicesFfsFindSectionData (EFI_SECTION_PE32, FileHandle, &PeCoffImage);
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ASSERT_EFI_ERROR (Status);
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Status = PeCoffLoaderGetEntryPoint (PeCoffImage, (VOID **)&EntryPoint);
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ASSERT_EFI_ERROR (Status);
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// Transfer control to PEI Core
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EntryPoint (SecCoreData, SecPpiList);
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// PEI Core never returns
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ASSERT (FALSE);
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return;
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}
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