diff options
Diffstat (limited to 'DuetPkg/EfiLdr/EfiLoader.c')
| -rw-r--r-- | DuetPkg/EfiLdr/EfiLoader.c | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/DuetPkg/EfiLdr/EfiLoader.c b/DuetPkg/EfiLdr/EfiLoader.c new file mode 100644 index 0000000000..382b7802a1 --- /dev/null +++ b/DuetPkg/EfiLdr/EfiLoader.c @@ -0,0 +1,266 @@ +/*++
+
+Copyright (c) 2006, Intel Corporation
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+Module Name:
+ EfiLoader.c
+
+Abstract:
+
+Revision History:
+
+--*/
+
+#include "EfiLdr.h"
+#include "Support.h"
+#include "Debug.h"
+#include "PeLoader.h"
+
+VOID
+EfiLoader (
+ UINT32 BiosMemoryMapBaseAddress
+ )
+{
+ BIOS_MEMORY_MAP *BiosMemoryMap;
+ EFILDR_HEADER *EFILDRHeader;
+ EFILDR_IMAGE *EFILDRImage;
+ EFI_MEMORY_DESCRIPTOR EfiMemoryDescriptor[EFI_MAX_MEMORY_DESCRIPTORS];
+ EFI_STATUS Status;
+ UINTN NumberOfMemoryMapEntries;
+ UINT32 DestinationSize;
+ UINT32 ScratchSize;
+ UINTN BfvPageNumber;
+ UINTN BfvBase;
+ EFI_MAIN_ENTRYPOINT EfiMainEntrypoint;
+ static EFILDRHANDOFF Handoff;
+
+PrintHeader ('A');
+
+ ClearScreen();
+ PrintString("EFI Loader\n");
+
+// PrintString("&BiosMemoryMapBaseAddress = ");
+// PrintValue64 ((UINT64)(&BiosMemoryMapBaseAddress));
+// PrintString(" BiosMemoryMapBaseAddress = ");
+// PrintValue(BiosMemoryMapBaseAddress);
+// PrintString("\n");
+
+ //
+ // Add all EfiConventionalMemory descriptors to the table. If there are partial pages, then
+ // round the start address up to the next page, and round the length down to a page boundry.
+ //
+ BiosMemoryMap = (BIOS_MEMORY_MAP *)(UINTN)(BiosMemoryMapBaseAddress);
+ NumberOfMemoryMapEntries = 0;
+ GenMemoryMap (&NumberOfMemoryMapEntries, EfiMemoryDescriptor, BiosMemoryMap);
+
+ //
+ // Get information on where the image is in memory
+ //
+
+ EFILDRHeader = (EFILDR_HEADER *)(UINTN)(EFILDR_HEADER_ADDRESS);
+ EFILDRImage = (EFILDR_IMAGE *)(UINTN)(EFILDR_HEADER_ADDRESS + sizeof(EFILDR_HEADER));
+
+PrintHeader ('D');
+
+ //
+ // Point to the 4th image (Bfv)
+ //
+
+ EFILDRImage += 3;
+
+ //
+ // Decompress the image
+ //
+
+ Status = UefiDecompressGetInfo (
+ NULL,
+ (VOID *)(UINTN)(EFILDR_HEADER_ADDRESS + EFILDRImage->Offset),
+ EFILDRImage->Length,
+ &DestinationSize,
+ &ScratchSize
+ );
+ if (EFI_ERROR (Status)) {
+ CpuDeadLoop();
+ }
+
+ Status = TianoDecompress (
+ NULL,
+ (VOID *)(UINTN)(EFILDR_HEADER_ADDRESS + EFILDRImage->Offset),
+ EFILDRImage->Length,
+ (VOID *)(UINTN)EFI_DECOMPRESSED_BUFFER_ADDRESS,
+ DestinationSize,
+ (VOID *)(UINTN)((EFI_DECOMPRESSED_BUFFER_ADDRESS + DestinationSize + 0x1000) & 0xfffff000),
+ ScratchSize
+ );
+ if (EFI_ERROR (Status)) {
+ CpuDeadLoop();
+ }
+
+ BfvPageNumber = EFI_SIZE_TO_PAGES (DestinationSize);
+ BfvBase = (UINTN) FindSpace (BfvPageNumber, &NumberOfMemoryMapEntries, EfiMemoryDescriptor, EfiRuntimeServicesData, EFI_MEMORY_WB);
+ if (BfvBase == 0) {
+ CpuDeadLoop();
+ }
+ ZeroMem ((VOID *)(UINTN)BfvBase, BfvPageNumber * EFI_PAGE_SIZE);
+ CopyMem ((VOID *)(UINTN)BfvBase, (VOID *)(UINTN)EFI_DECOMPRESSED_BUFFER_ADDRESS, DestinationSize);
+
+PrintHeader ('B');
+
+ //
+ // Point to the 2nd image (DxeIpl)
+ //
+
+ EFILDRImage -= 2;
+
+ //
+ // Decompress the image
+ //
+
+ Status = UefiDecompressGetInfo (
+ NULL,
+ (VOID *)(UINTN)(EFILDR_HEADER_ADDRESS + EFILDRImage->Offset),
+ EFILDRImage->Length,
+ &DestinationSize,
+ &ScratchSize
+ );
+ if (EFI_ERROR (Status)) {
+ CpuDeadLoop();
+ }
+
+ Status = TianoDecompress (
+ NULL,
+ (VOID *)(UINTN)(EFILDR_HEADER_ADDRESS + EFILDRImage->Offset),
+ EFILDRImage->Length,
+ (VOID *)(UINTN)EFI_DECOMPRESSED_BUFFER_ADDRESS,
+ DestinationSize,
+ (VOID *)(UINTN)((EFI_DECOMPRESSED_BUFFER_ADDRESS + DestinationSize + 0x1000) & 0xfffff000),
+ ScratchSize
+ );
+ if (EFI_ERROR (Status)) {
+ CpuDeadLoop();
+ }
+
+ //
+ // Load and relocate the EFI PE/COFF Firmware Image
+ //
+ Status = EfiLdrPeCoffLoadPeImage (
+ (VOID *)(UINTN)(EFI_DECOMPRESSED_BUFFER_ADDRESS),
+ &DxeIplImage,
+ &NumberOfMemoryMapEntries,
+ EfiMemoryDescriptor
+ );
+ if (EFI_ERROR (Status)) {
+ CpuDeadLoop();
+ }
+
+// PrintString("Image.NoPages = ");
+// PrintValue(Image.NoPages);
+// PrintString("\n");
+
+PrintHeader ('C');
+
+ //
+ // Point to the 3rd image (DxeMain)
+ //
+
+ EFILDRImage++;
+
+ //
+ // Decompress the image
+ //
+
+ Status = UefiDecompressGetInfo (
+ NULL,
+ (VOID *)(UINTN)(EFILDR_HEADER_ADDRESS + EFILDRImage->Offset),
+ EFILDRImage->Length,
+ &DestinationSize,
+ &ScratchSize
+ );
+ if (EFI_ERROR (Status)) {
+ CpuDeadLoop();
+ }
+
+ Status = TianoDecompress (
+ NULL,
+ (VOID *)(UINTN)(EFILDR_HEADER_ADDRESS + EFILDRImage->Offset),
+ EFILDRImage->Length,
+ (VOID *)(UINTN)EFI_DECOMPRESSED_BUFFER_ADDRESS,
+ DestinationSize,
+ (VOID *)(UINTN)((EFI_DECOMPRESSED_BUFFER_ADDRESS + DestinationSize + 0x1000) & 0xfffff000),
+ ScratchSize
+ );
+ if (EFI_ERROR (Status)) {
+ CpuDeadLoop();
+ }
+
+ //
+ // Load and relocate the EFI PE/COFF Firmware Image
+ //
+ Status = EfiLdrPeCoffLoadPeImage (
+ (VOID *)(UINTN)(EFI_DECOMPRESSED_BUFFER_ADDRESS),
+ &DxeCoreImage,
+ &NumberOfMemoryMapEntries,
+ EfiMemoryDescriptor
+ );
+ if (EFI_ERROR (Status)) {
+ CpuDeadLoop();
+ }
+
+PrintHeader ('E');
+
+ //
+ // Display the table of memory descriptors.
+ //
+
+// PrintString("\nEFI Memory Descriptors\n");
+/*
+ {
+ UINTN Index;
+ for (Index = 0; Index < NumberOfMemoryMapEntries; Index++) {
+ PrintString("Type = ");
+ PrintValue(EfiMemoryDescriptor[Index].Type);
+ PrintString(" Start = ");
+ PrintValue((UINT32)(EfiMemoryDescriptor[Index].PhysicalStart));
+ PrintString(" NumberOfPages = ");
+ PrintValue((UINT32)(EfiMemoryDescriptor[Index].NumberOfPages));
+ PrintString("\n");
+ }
+ }
+*/
+
+ //
+ // Jump to EFI Firmware
+ //
+
+ if (DxeIplImage.EntryPoint != NULL) {
+
+ Handoff.MemDescCount = NumberOfMemoryMapEntries;
+ Handoff.MemDesc = EfiMemoryDescriptor;
+ Handoff.BfvBase = (VOID *)(UINTN)BfvBase;
+ Handoff.BfvSize = BfvPageNumber * EFI_PAGE_SIZE;
+ Handoff.DxeIplImageBase = (VOID *)(UINTN)DxeIplImage.ImageBasePage;
+ Handoff.DxeIplImageSize = DxeIplImage.NoPages * EFI_PAGE_SIZE;
+ Handoff.DxeCoreImageBase = (VOID *)(UINTN)DxeCoreImage.ImageBasePage;
+ Handoff.DxeCoreImageSize = DxeCoreImage.NoPages * EFI_PAGE_SIZE;
+ Handoff.DxeCoreEntryPoint = (VOID *)(UINTN)DxeCoreImage.EntryPoint;
+
+ EfiMainEntrypoint = (EFI_MAIN_ENTRYPOINT)(UINTN)DxeIplImage.EntryPoint;
+ EfiMainEntrypoint (&Handoff);
+ }
+
+PrintHeader ('F');
+
+ //
+ // There was a problem loading the image, so HALT the system.
+ //
+
+ CpuDeadLoop();
+}
+
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