f9b8ab5632
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10437 6f19259b-4bc3-4df7-8a09-765794883524
117 lines
3.4 KiB
C
117 lines
3.4 KiB
C
/*++
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Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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UnixAutoscan.c
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Abstract:
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This PEIM to abstract memory auto-scan in an Unix environment.
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Revision History
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--*/
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#include "PiPei.h"
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#include <Ppi/UnixAutoScan.h>
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#include <Ppi/MemoryDiscovered.h>
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#include <Library/DebugLib.h>
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#include <Library/PeimEntryPoint.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/HobLib.h>
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#include <Library/PeiServicesLib.h>
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#include <Library/PeiServicesTablePointerLib.h>
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EFI_STATUS
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EFIAPI
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PeimInitializeUnixAutoScan (
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IN EFI_PEI_FILE_HANDLE FileHandle,
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IN CONST EFI_PEI_SERVICES **PeiServices
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)
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/*++
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Routine Description:
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Perform a call-back into the SEC simulator to get a memory value
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Arguments:
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FfsHeader - General purpose data available to every PEIM
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PeiServices - General purpose services available to every PEIM.
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Returns:
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None
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--*/
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{
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EFI_STATUS Status;
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EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;
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PEI_UNIX_AUTOSCAN_PPI *PeiUnixService;
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UINT64 MemorySize;
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EFI_PHYSICAL_ADDRESS MemoryBase;
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UINTN Index;
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EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;
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DEBUG ((EFI_D_ERROR, "Unix Autoscan PEIM Loaded\n"));
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//
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// Get the PEI UNIX Autoscan PPI
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//
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Status = PeiServicesLocatePpi (
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&gPeiUnixAutoScanPpiGuid, // GUID
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0, // INSTANCE
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&PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR
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(VOID **)&PeiUnixService // PPI
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);
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ASSERT_EFI_ERROR (Status);
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Index = 0;
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do {
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Status = PeiUnixService->UnixAutoScan (Index, &MemoryBase, &MemorySize);
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if (!EFI_ERROR (Status)) {
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Attributes =
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(
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EFI_RESOURCE_ATTRIBUTE_PRESENT |
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EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
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EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
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EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
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EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
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EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
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);
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if (Index == 0) {
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//
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// Register the memory with the PEI Core
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//
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Status = PeiServicesInstallPeiMemory (MemoryBase, MemorySize);
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ASSERT_EFI_ERROR (Status);
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Attributes |= EFI_RESOURCE_ATTRIBUTE_TESTED;
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}
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BuildResourceDescriptorHob (
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EFI_RESOURCE_SYSTEM_MEMORY,
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Attributes,
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MemoryBase,
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MemorySize
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);
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}
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Index++;
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} while (!EFI_ERROR (Status));
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//
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// Build the CPU hob with 36-bit addressing and 16-bits of IO space.
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//
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BuildCpuHob (36, 16);
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return Status;
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}
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