| Vishal Bhoj | 82c8071 | 2015-12-15 21:13:33 +0530 | [diff] [blame^] | 1 | /*++ @file
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| 2 |
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| 3 | Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
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| 4 | Portions copyright (c) 2011, Apple Inc. All rights reserved.
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| 5 | This program and the accompanying materials
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| 6 | are licensed and made available under the terms and conditions of the BSD License
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| 7 | which accompanies this distribution. The full text of the license may be found at
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| 8 | http://opensource.org/licenses/bsd-license.php
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| 9 |
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| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 12 |
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| 13 | **/
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| 14 |
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| 15 | #include "PiPei.h"
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| 16 | #include <Ppi/EmuThunk.h>
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| 17 | #include <Ppi/MemoryDiscovered.h>
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| 18 |
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| 19 | #include <Library/DebugLib.h>
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| 20 | #include <Library/PeimEntryPoint.h>
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| 21 | #include <Library/BaseLib.h>
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| 22 | #include <Library/BaseMemoryLib.h>
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| 23 | #include <Library/HobLib.h>
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| 24 | #include <Library/PeiServicesLib.h>
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| 25 | #include <Library/PeiServicesTablePointerLib.h>
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| 26 |
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| 27 | EFI_STATUS
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| 28 | EFIAPI
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| 29 | PeimInitializeAutoScanPei (
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| 30 | IN EFI_PEI_FILE_HANDLE FileHandle,
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| 31 | IN CONST EFI_PEI_SERVICES **PeiServices
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| 32 | )
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| 33 | /*++
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| 34 |
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| 35 | Routine Description:
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| 36 | Perform a call-back into the SEC simulator to get a memory value
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| 37 |
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| 38 | Arguments:
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| 39 | FfsHeader - General purpose data available to every PEIM
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| 40 | PeiServices - General purpose services available to every PEIM.
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| 41 |
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| 42 | Returns:
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| 43 | None
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| 44 |
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| 45 | **/
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| 46 | {
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| 47 | EFI_STATUS Status;
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| 48 | EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;
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| 49 | EMU_THUNK_PPI *Thunk;
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| 50 | UINT64 MemorySize;
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| 51 | EFI_PHYSICAL_ADDRESS MemoryBase;
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| 52 | UINTN Index;
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| 53 | EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;
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| 54 |
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| 55 |
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| 56 | DEBUG ((EFI_D_ERROR, "Emu Autoscan PEIM Loaded\n"));
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| 57 |
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| 58 | //
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| 59 | // Get the PEI UNIX Autoscan PPI
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| 60 | //
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| 61 | Status = PeiServicesLocatePpi (
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| 62 | &gEmuThunkPpiGuid, // GUID
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| 63 | 0, // INSTANCE
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| 64 | &PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR
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| 65 | (VOID **)&Thunk // PPI
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| 66 | );
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| 67 | ASSERT_EFI_ERROR (Status);
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| 68 |
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| 69 | Index = 0;
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| 70 | do {
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| 71 | Status = Thunk->MemoryAutoScan (Index, &MemoryBase, &MemorySize);
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| 72 | if (!EFI_ERROR (Status)) {
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| 73 | Attributes =
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| 74 | (
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| 75 | EFI_RESOURCE_ATTRIBUTE_PRESENT |
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| 76 | EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
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| 77 | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
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| 78 | EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
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| 79 | EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
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| 80 | EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
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| 81 | );
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| 82 |
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| 83 | if (Index == 0) {
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| 84 | //
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| 85 | // Register the memory with the PEI Core
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| 86 | //
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| 87 | Status = PeiServicesInstallPeiMemory (MemoryBase, MemorySize);
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| 88 | ASSERT_EFI_ERROR (Status);
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| 89 |
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| 90 | Attributes |= EFI_RESOURCE_ATTRIBUTE_TESTED;
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| 91 | }
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| 92 |
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| 93 | BuildResourceDescriptorHob (
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| 94 | EFI_RESOURCE_SYSTEM_MEMORY,
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| 95 | Attributes,
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| 96 | MemoryBase,
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| 97 | MemorySize
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| 98 | );
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| 99 | }
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| 100 | Index++;
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| 101 | } while (!EFI_ERROR (Status));
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| 102 |
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| 103 | //
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| 104 | // Build the CPU hob with 36-bit addressing and 16-bits of IO space.
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| 105 | //
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| 106 | BuildCpuHob (36, 16);
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| 107 |
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| 108 | return Status;
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| 109 | }
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