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- /*++ @file
- Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
- Portions copyright (c) 2011, Apple Inc. All rights reserved.
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #include "PiPei.h"
- #include <Ppi/EmuThunk.h>
- #include <Ppi/MemoryDiscovered.h>
- #include <Library/DebugLib.h>
- #include <Library/PeimEntryPoint.h>
- #include <Library/BaseLib.h>
- #include <Library/BaseMemoryLib.h>
- #include <Library/HobLib.h>
- #include <Library/PeiServicesLib.h>
- #include <Library/PeiServicesTablePointerLib.h>
- EFI_STATUS
- EFIAPI
- PeimInitializeAutoScanPei (
- IN EFI_PEI_FILE_HANDLE FileHandle,
- IN CONST EFI_PEI_SERVICES **PeiServices
- )
- /*++
- Routine Description:
- Perform a call-back into the SEC simulator to get a memory value
- Arguments:
- FfsHeader - General purpose data available to every PEIM
- PeiServices - General purpose services available to every PEIM.
- Returns:
- None
- **/
- {
- EFI_STATUS Status;
- EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;
- EMU_THUNK_PPI *Thunk;
- UINT64 MemorySize;
- EFI_PHYSICAL_ADDRESS MemoryBase;
- UINTN Index;
- EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;
- DEBUG ((DEBUG_ERROR, "Emu Autoscan PEIM Loaded\n"));
- //
- // Get the PEI UNIX Autoscan PPI
- //
- Status = PeiServicesLocatePpi (
- &gEmuThunkPpiGuid, // GUID
- 0, // INSTANCE
- &PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR
- (VOID **)&Thunk // PPI
- );
- ASSERT_EFI_ERROR (Status);
- Index = 0;
- do {
- Status = Thunk->MemoryAutoScan (Index, &MemoryBase, &MemorySize);
- if (!EFI_ERROR (Status)) {
- Attributes =
- (
- EFI_RESOURCE_ATTRIBUTE_PRESENT |
- EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
- EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
- EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
- EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
- EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
- );
- if (Index == 0) {
- //
- // Register the memory with the PEI Core
- //
- Status = PeiServicesInstallPeiMemory (MemoryBase, MemorySize);
- ASSERT_EFI_ERROR (Status);
- Attributes |= EFI_RESOURCE_ATTRIBUTE_TESTED;
- }
- BuildResourceDescriptorHob (
- EFI_RESOURCE_SYSTEM_MEMORY,
- Attributes,
- MemoryBase,
- MemorySize
- );
- }
- Index++;
- } while (!EFI_ERROR (Status));
- //
- // Build the CPU hob with 57-bit addressing and 16-bits of IO space.
- //
- BuildCpuHob (57, 16);
- return Status;
- }
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