mirror of https://github.com/acidanthera/audk.git
Use VirtualAlloc() to allocate enough memory space for Nt32 emulator in place of original mapped file to memory space.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4068 6f19259b-4bc3-4df7-8a09-765794883524
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@ -17,18 +17,14 @@ Abstract:
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WinNt emulator of SEC phase. It's really a Win32 application, but this is
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Ok since all the other modules for NT32 are NOT Win32 applications.
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This program processes Windows environment variables and figures out
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what the memory layout will be, how may FD's will be loaded and also
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what the boot mode is.
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This program gets NT32 PCD setting and figures out what the memory layout
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will be, how may FD's will be loaded and also what the boot mode is.
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The SEC registers a set of services with the SEC core. gPrivateDispatchTable
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is a list of PPI's produced by the SEC that are availble for usage in PEI.
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This code produces 128 K of temporary memory for the PEI stack by opening a
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Windows file and mapping it directly to memory addresses.
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The system.cmd script is used to set windows environment variables that drive
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the configuration opitons of the SEC.
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This code produces 128 K of temporary memory for the PEI stack by directly
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allocate memory space with ReadWrite and Execute attribute.
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--*/
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@ -99,19 +95,18 @@ EFI_PEI_PPI_DESCRIPTOR gPrivateDispatchTable[] = {
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//
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// Default information about where the FD is located.
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// This array gets filled in with information from EFI_FIRMWARE_VOLUMES
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// EFI_FIRMWARE_VOLUMES is a Windows environment variable set by system.cmd.
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// This array gets filled in with information from PcdWinNtFirmwareVolume
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// The number of array elements is allocated base on parsing
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// EFI_FIRMWARE_VOLUMES and the memory is never freed.
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// PcdWinNtFirmwareVolume and the memory is never freed.
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//
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UINTN gFdInfoCount = 0;
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NT_FD_INFO *gFdInfo;
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//
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// Array that supports seperate memory rantes.
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// The memory ranges are set in system.cmd via the EFI_MEMORY_SIZE variable.
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// The memory ranges are set by PcdWinNtMemorySizeForSecMain.
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// The number of array elements is allocated base on parsing
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// EFI_MEMORY_SIZE and the memory is never freed.
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// PcdWinNtMemorySizeForSecMain value and the memory is never freed.
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//
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UINTN gSystemMemoryCount = 0;
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NT_SYSTEM_MEMORY *gSystemMemory;
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@ -159,9 +154,9 @@ Returns:
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VOID *PeiCoreFile;
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CHAR16 *MemorySizeStr;
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CHAR16 *FirmwareVolumesStr;
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MemorySizeStr = (CHAR16 *)L"64!64";
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FirmwareVolumesStr = (CHAR16 *)L"..\\Fv\\Fv_Recovery.fd";
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MemorySizeStr = (CHAR16 *) FixedPcdGetPtr (PcdWinNtMemorySizeForSecMain);
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FirmwareVolumesStr = (CHAR16 *) FixedPcdGetPtr (PcdWinNtFirmwareVolume);
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printf ("\nEDK SEC Main NT Emulation Environment from www.TianoCore.org\n");
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@ -196,21 +191,14 @@ Returns:
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printf (" BootMode 0x%02x\n", FixedPcdGet32 (PcdWinNtBootMode));
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//
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// Open up a 128K file to emulate temp memory for PEI.
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// Allocate 128K memory to emulate temp memory for PEI.
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// on a real platform this would be SRAM, or using the cache as RAM.
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// Set InitialStackMemory to zero so WinNtOpenFile will allocate a new mapping
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//
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InitialStackMemory = 0;
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InitialStackMemorySize = 0x20000;
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Status = WinNtOpenFile (
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L"SecStack",
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(UINT32) InitialStackMemorySize,
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OPEN_ALWAYS,
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&InitialStackMemory,
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&InitialStackMemorySize
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);
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if (EFI_ERROR (Status)) {
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printf ("ERROR : Can not open SecStack Exiting\n");
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InitialStackMemorySize = STACK_SIZE;
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InitialStackMemory = (EFI_PHYSICAL_ADDRESS) (UINTN) VirtualAlloc (NULL, (SIZE_T) (InitialStackMemorySize), MEM_COMMIT, PAGE_EXECUTE_READWRITE);
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if (InitialStackMemory == 0) {
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printf ("ERROR : Can not allocate enough space for SecStack\n");
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exit (1);
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}
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@ -286,7 +274,6 @@ Returns:
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// Save the size of the memory and make a Unicode filename SystemMemory00, ...
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//
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gSystemMemory[Index].Size = _wtoi (MemorySizeStr) * 0x100000;
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_snwprintf (gSystemMemory[Index].FileName, NT_SYSTEM_MEMORY_FILENAME_SIZE, L"SystemMemory%02d", Index);
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//
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// Find the next region
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@ -646,9 +633,9 @@ Routine Description:
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This service is called from Index == 0 until it returns EFI_UNSUPPORTED.
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It allows discontiguous memory regions to be supported by the emulator.
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It uses gSystemMemory[] and gSystemMemoryCount that were created by
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parsing the Windows environment variable EFI_MEMORY_SIZE.
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The size comes from the varaible and the address comes from the call to
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WinNtOpenFile.
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parsing PcdWinNtMemorySizeForSecMain value.
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The size comes from the Pcd value and the address comes from the memory space
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with ReadWrite and Execute attributes allocated by VirtualAlloc() API.
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Arguments:
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Index - Which memory region to use
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@ -661,24 +648,22 @@ Returns:
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--*/
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{
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EFI_STATUS Status;
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if (Index >= gSystemMemoryCount) {
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return EFI_UNSUPPORTED;
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}
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//
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// Allocate enough memory space for emulator
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//
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gSystemMemory[Index].Memory = (EFI_PHYSICAL_ADDRESS) (UINTN) VirtualAlloc (NULL, (SIZE_T) (gSystemMemory[Index].Size), MEM_COMMIT, PAGE_EXECUTE_READWRITE);
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if (gSystemMemory[Index].Memory == 0) {
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return EFI_OUT_OF_RESOURCES;
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}
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*MemoryBase = gSystemMemory[Index].Memory;
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*MemorySize = gSystemMemory[Index].Size;
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*MemoryBase = 0;
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Status = WinNtOpenFile (
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gSystemMemory[Index].FileName,
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(UINT32) gSystemMemory[Index].Size,
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OPEN_ALWAYS,
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MemoryBase,
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MemorySize
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);
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gSystemMemory[Index].Memory = *MemoryBase;
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return Status;
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return EFI_SUCCESS;
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}
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VOID *
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@ -744,9 +729,10 @@ Returns:
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return Status;
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}
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//
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// Allocate space in NT (not emulator) memory. Extra space is for alignment
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// Allocate space in NT (not emulator) memory with ReadWrite and Execute attribue.
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// Extra space is for alignment
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//
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ImageContext.ImageAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) malloc ((UINTN) (ImageContext.ImageSize + (ImageContext.SectionAlignment * 2)));
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ImageContext.ImageAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) VirtualAlloc (NULL, (SIZE_T) (ImageContext.ImageSize + (ImageContext.SectionAlignment * 2)), MEM_COMMIT, PAGE_EXECUTE_READWRITE);
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if (ImageContext.ImageAddress == 0) {
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return EFI_OUT_OF_RESOURCES;
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}
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@ -47,15 +47,11 @@ typedef struct {
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UINT64 Size;
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} NT_FD_INFO;
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#define NT_SYSTEM_MEMORY_FILENAME_SIZE 40
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typedef struct {
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CHAR16 FileName[NT_SYSTEM_MEMORY_FILENAME_SIZE];
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EFI_PHYSICAL_ADDRESS Memory;
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UINT64 Size;
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} NT_SYSTEM_MEMORY;
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#define MAX_PDB_NAME_TO_MOD_HANDLE_ARRAY_SIZE 0x100
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typedef struct {
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@ -63,6 +63,8 @@
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[FixedPcd.common]
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gEfiNt32PkgTokenSpaceGuid.PcdWinNtBootMode
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gEfiNt32PkgTokenSpaceGuid.PcdWinNtFirmwareFdSize
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gEfiNt32PkgTokenSpaceGuid.PcdWinNtMemorySizeForSecMain
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gEfiNt32PkgTokenSpaceGuid.PcdWinNtFirmwareVolume
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[BuildOptions.common]
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MSFT:DEBUG_*_IA32_DLINK_FLAGS = /out:"$(BIN_DIR)\SecMain.exe" /base:0x10000000 /pdb:"$(BIN_DIR)\SecMain.pdb" /LIBPATH:"$(VCINSTALLDIR)\Lib" /LIBPATH:"$(VCINSTALLDIR)\PlatformSdk\Lib" /NOLOGO /SUBSYSTEM:CONSOLE /NODEFAULTLIB /IGNORE:4086 /MAP /OPT:REF /DEBUG /MACHINE:I386 /LTCG Kernel32.lib MSVCRTD.lib Gdi32.lib User32.lib Winmm.lib
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