diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/ArmVirtPkg/PrePi/PrePi.c | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/ArmVirtPkg/PrePi/PrePi.c')
| -rwxr-xr-x | roms/edk2/ArmVirtPkg/PrePi/PrePi.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/roms/edk2/ArmVirtPkg/PrePi/PrePi.c b/roms/edk2/ArmVirtPkg/PrePi/PrePi.c new file mode 100755 index 000000000..4f0c3f98b --- /dev/null +++ b/roms/edk2/ArmVirtPkg/PrePi/PrePi.c @@ -0,0 +1,165 @@ +/** @file
+*
+* Copyright (c) 2011-2014, ARM Limited. All rights reserved.
+*
+* SPDX-License-Identifier: BSD-2-Clause-Patent
+*
+**/
+
+#include <PiPei.h>
+#include <Pi/PiBootMode.h>
+
+#include <Library/PeCoffLib.h>
+#include <Library/PrePiLib.h>
+#include <Library/PrintLib.h>
+#include <Library/PrePiHobListPointerLib.h>
+#include <Library/TimerLib.h>
+#include <Library/PerformanceLib.h>
+#include <Library/CacheMaintenanceLib.h>
+
+#include <Ppi/GuidedSectionExtraction.h>
+#include <Ppi/ArmMpCoreInfo.h>
+
+#include "PrePi.h"
+
+VOID
+EFIAPI
+ProcessLibraryConstructorList (
+ VOID
+ );
+
+VOID
+PrePiMain (
+ IN UINTN UefiMemoryBase,
+ IN UINTN StacksBase,
+ IN UINT64 StartTimeStamp
+ )
+{
+ EFI_HOB_HANDOFF_INFO_TABLE* HobList;
+ EFI_STATUS Status;
+ CHAR8 Buffer[100];
+ UINTN CharCount;
+ UINTN StacksSize;
+
+ // Initialize the architecture specific bits
+ ArchInitialize ();
+
+ // Declare the PI/UEFI memory region
+ HobList = HobConstructor (
+ (VOID*)UefiMemoryBase,
+ FixedPcdGet32 (PcdSystemMemoryUefiRegionSize),
+ (VOID*)UefiMemoryBase,
+ (VOID*)StacksBase // The top of the UEFI Memory is reserved for the stacks
+ );
+ PrePeiSetHobList (HobList);
+
+ //
+ // Ensure that the loaded image is invalidated in the caches, so that any
+ // modifications we made with the caches and MMU off (such as the applied
+ // relocations) don't become invisible once we turn them on.
+ //
+ InvalidateDataCacheRange((VOID *)(UINTN)PcdGet64 (PcdFdBaseAddress), PcdGet32 (PcdFdSize));
+
+ // Initialize MMU and Memory HOBs (Resource Descriptor HOBs)
+ Status = MemoryPeim (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));
+ ASSERT_EFI_ERROR (Status);
+
+ // Initialize the Serial Port
+ SerialPortInitialize ();
+ CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"UEFI firmware (version %s built at %a on %a)\n\r",
+ (CHAR16*)PcdGetPtr(PcdFirmwareVersionString), __TIME__, __DATE__);
+ SerialPortWrite ((UINT8 *) Buffer, CharCount);
+
+ // Create the Stacks HOB (reserve the memory for all stacks)
+ StacksSize = PcdGet32 (PcdCPUCorePrimaryStackSize);
+ BuildStackHob (StacksBase, StacksSize);
+
+ //TODO: Call CpuPei as a library
+ BuildCpuHob (ArmGetPhysicalAddressBits (), PcdGet8 (PcdPrePiCpuIoSize));
+
+ // Set the Boot Mode
+ SetBootMode (BOOT_WITH_FULL_CONFIGURATION);
+
+ // Initialize Platform HOBs (CpuHob and FvHob)
+ Status = PlatformPeim ();
+ ASSERT_EFI_ERROR (Status);
+
+ // Now, the HOB List has been initialized, we can register performance information
+ PERF_START (NULL, "PEI", NULL, StartTimeStamp);
+
+ // SEC phase needs to run library constructors by hand.
+ ProcessLibraryConstructorList ();
+
+ // Assume the FV that contains the SEC (our code) also contains a compressed FV.
+ Status = DecompressFirstFv ();
+ ASSERT_EFI_ERROR (Status);
+
+ // Load the DXE Core and transfer control to it
+ Status = LoadDxeCoreFromFv (NULL, 0);
+ ASSERT_EFI_ERROR (Status);
+}
+
+VOID
+CEntryPoint (
+ IN UINTN MpId,
+ IN UINTN UefiMemoryBase,
+ IN UINTN StacksBase
+ )
+{
+ UINT64 StartTimeStamp;
+
+ if (PerformanceMeasurementEnabled ()) {
+ // Initialize the Timer Library to setup the Timer HW controller
+ TimerConstructor ();
+ // We cannot call yet the PerformanceLib because the HOB List has not been initialized
+ StartTimeStamp = GetPerformanceCounter ();
+ } else {
+ StartTimeStamp = 0;
+ }
+
+ // Data Cache enabled on Primary core when MMU is enabled.
+ ArmDisableDataCache ();
+ // Invalidate instruction cache
+ ArmInvalidateInstructionCache ();
+ // Enable Instruction Caches on all cores.
+ ArmEnableInstructionCache ();
+
+ PrePiMain (UefiMemoryBase, StacksBase, StartTimeStamp);
+
+ // DXE Core should always load and never return
+ ASSERT (FALSE);
+}
+
+VOID
+RelocatePeCoffImage (
+ IN EFI_PEI_FV_HANDLE FwVolHeader,
+ IN PE_COFF_LOADER_READ_FILE ImageRead
+ )
+{
+ EFI_PEI_FILE_HANDLE FileHandle;
+ VOID *SectionData;
+ PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;
+ EFI_STATUS Status;
+
+ FileHandle = NULL;
+ Status = FfsFindNextFile (EFI_FV_FILETYPE_SECURITY_CORE, FwVolHeader,
+ &FileHandle);
+ ASSERT_EFI_ERROR (Status);
+
+ Status = FfsFindSectionData (EFI_SECTION_PE32, FileHandle, &SectionData);
+ if (EFI_ERROR (Status)) {
+ Status = FfsFindSectionData (EFI_SECTION_TE, FileHandle, &SectionData);
+ }
+ ASSERT_EFI_ERROR (Status);
+
+ ZeroMem (&ImageContext, sizeof ImageContext);
+
+ ImageContext.Handle = (EFI_HANDLE)SectionData;
+ ImageContext.ImageRead = ImageRead;
+ PeCoffLoaderGetImageInfo (&ImageContext);
+
+ if (ImageContext.ImageAddress != (UINTN)SectionData) {
+ ImageContext.ImageAddress = (UINTN)SectionData;
+ PeCoffLoaderRelocateImage (&ImageContext);
+ }
+}
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