diff options
| author | Jiewen Yao <jiewen.yao@intel.com> | 2016-05-13 13:00:53 +0800 |
|---|---|---|
| committer | Jiewen Yao <jiewen.yao@intel.com> | 2016-05-13 13:00:53 +0800 |
| commit | cf1d454983fb4fd3b580a92bd242310467a5eaef (patch) | |
| tree | c289db5c4533b6f6d824f2aad6f9fc1e00648bf6 /IntelFsp2WrapperPkg/FspWrapperNotifyDxe/LoadBelow4G.c | |
| parent | c9802c45647d84e71b4620fdfff0c4bd88cf5acb (diff) | |
| download | edk2-platforms-cf1d454983fb4fd3b580a92bd242310467a5eaef.tar.xz | |
Add IntelFsp2Pkg and IntelFsp2WrapperPkg.
Add FSP2.0 support.
This series of patch is to support FSP2.0 specification at
https://firmware.intel.com/sites/default/files/FSP_EAS_v2.0_Draft%20External.pdf
Some major updates include:
1) One FSP binary is separated to multiple components:
FSP-T, FSP-M, FSP-S, and optional FSP-O.
Each component has its own configuration data region.
2) All FSP-APIs use same UPD format - FSP_UPD_HEADER.
3) Add EnumInitPhaseEndOfFirmware notifyphase.
4) FSP1.1/FSP1.0 compatibility is NOT maintained.
5) We also add rename Fsp* to FspWrapper* in IntelFsp2WrapperPkg,
to indicate that it is for FspWrapper only.
IntelFspPkg and IntelFspWrapperPkg will be deprecated.
The new Intel platform will follow FSP2.0 and use IntelFsp2Pkg
and IntelFsp2WrapperPkg.
The old platform can still use IntelFspPkg and IntelFspWrapperPkg
for compatibility consideration.
Cc: Giri P Mudusuru <giri.p.mudusuru@intel.com>
Cc: Maurice Ma <maurice.ma@intel.com>
Cc: Ravi P Rangarajan <ravi.p.rangarajan@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
Reviewed-by: Maurice Ma <maurice.ma@intel.com>
Reviewed-by: Ravi P Rangarajan <ravi.p.rangarajan@intel.com>
Diffstat (limited to 'IntelFsp2WrapperPkg/FspWrapperNotifyDxe/LoadBelow4G.c')
| -rw-r--r-- | IntelFsp2WrapperPkg/FspWrapperNotifyDxe/LoadBelow4G.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/IntelFsp2WrapperPkg/FspWrapperNotifyDxe/LoadBelow4G.c b/IntelFsp2WrapperPkg/FspWrapperNotifyDxe/LoadBelow4G.c new file mode 100644 index 0000000000..c073703a1b --- /dev/null +++ b/IntelFsp2WrapperPkg/FspWrapperNotifyDxe/LoadBelow4G.c @@ -0,0 +1,152 @@ +/** @file
+
+Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
+
+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.
+
+**/
+
+#include <Uefi.h>
+#include <Library/BaseLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PeCoffLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/DxeServicesLib.h>
+#include <Library/CacheMaintenanceLib.h>
+#include <Library/UefiLib.h>
+
+/**
+ Relocate this image under 4G memory.
+
+ @param ImageHandle Handle of driver image.
+ @param SystemTable Pointer to system table.
+
+ @retval EFI_SUCCESS Image successfully relocated.
+ @retval EFI_ABORTED Failed to relocate image.
+
+**/
+EFI_STATUS
+RelocateImageUnder4GIfNeeded (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ UINT8 *Buffer;
+ UINTN BufferSize;
+ EFI_HANDLE NewImageHandle;
+ UINTN Pages;
+ EFI_PHYSICAL_ADDRESS FfsBuffer;
+ PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;
+ VOID *Interface;
+
+ //
+ // If it is already <4G, no need do relocate
+ //
+ if ((UINTN)RelocateImageUnder4GIfNeeded < 0xFFFFFFFF) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // If locate gEfiCallerIdGuid success, it means 2nd entry.
+ //
+ Status = gBS->LocateProtocol (&gEfiCallerIdGuid, NULL, &Interface);
+ if (!EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "FspNotifyDxe - 2nd entry\n"));
+ return EFI_SUCCESS;
+ }
+
+ DEBUG ((DEBUG_INFO, "FspNotifyDxe - 1st entry\n"));
+
+ //
+ // Here we install a dummy handle
+ //
+ NewImageHandle = NULL;
+ Status = gBS->InstallProtocolInterface (
+ &NewImageHandle,
+ &gEfiCallerIdGuid,
+ EFI_NATIVE_INTERFACE,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Reload image itself to <4G mem
+ //
+ Status = GetSectionFromAnyFv (
+ &gEfiCallerIdGuid,
+ EFI_SECTION_PE32,
+ 0,
+ (VOID **) &Buffer,
+ &BufferSize
+ );
+ ASSERT_EFI_ERROR (Status);
+ ImageContext.Handle = Buffer;
+ ImageContext.ImageRead = PeCoffLoaderImageReadFromMemory;
+ //
+ // Get information about the image being loaded
+ //
+ Status = PeCoffLoaderGetImageInfo (&ImageContext);
+ ASSERT_EFI_ERROR (Status);
+ if (ImageContext.SectionAlignment > EFI_PAGE_SIZE) {
+ Pages = EFI_SIZE_TO_PAGES ((UINTN) (ImageContext.ImageSize + ImageContext.SectionAlignment));
+ } else {
+ Pages = EFI_SIZE_TO_PAGES ((UINTN) ImageContext.ImageSize);
+ }
+ FfsBuffer = 0xFFFFFFFF;
+ Status = gBS->AllocatePages (
+ AllocateMaxAddress,
+ EfiBootServicesCode,
+ Pages,
+ &FfsBuffer
+ );
+ ASSERT_EFI_ERROR (Status);
+ ImageContext.ImageAddress = (PHYSICAL_ADDRESS)(UINTN)FfsBuffer;
+ //
+ // Align buffer on section boundry
+ //
+ ImageContext.ImageAddress += ImageContext.SectionAlignment - 1;
+ ImageContext.ImageAddress &= ~((EFI_PHYSICAL_ADDRESS)(ImageContext.SectionAlignment - 1));
+ //
+ // Load the image to our new buffer
+ //
+ Status = PeCoffLoaderLoadImage (&ImageContext);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Relocate the image in our new buffer
+ //
+ Status = PeCoffLoaderRelocateImage (&ImageContext);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Free the buffer allocated by ReadSection since the image has been relocated in the new buffer
+ //
+ gBS->FreePool (Buffer);
+
+ //
+ // Flush the instruction cache so the image data is written before we execute it
+ //
+ InvalidateInstructionCacheRange ((VOID *)(UINTN)ImageContext.ImageAddress, (UINTN)ImageContext.ImageSize);
+
+ DEBUG ((DEBUG_INFO, "Loading driver at 0x%08x EntryPoint=0x%08x\n", (UINTN)ImageContext.ImageAddress, (UINTN)ImageContext.EntryPoint));
+ Status = ((EFI_IMAGE_ENTRY_POINT)(UINTN)(ImageContext.EntryPoint)) (NewImageHandle, gST);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "Error: Image at 0x%08x start failed: %r\n", ImageContext.ImageAddress, Status));
+ gBS->FreePages (FfsBuffer, Pages);
+ }
+
+ //
+ // return error to unload >4G copy, if we already relocate itself to <4G.
+ //
+ return EFI_ALREADY_STARTED;
+}
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