| 1 | /** @file
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| 2 |
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| 3 | Copyright (c) 2014 - 2015, Intel Corporation. All rights reserved.<BR>
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| 4 | This program and the accompanying materials
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| 5 | are licensed and made available under the terms and conditions of the BSD License
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| 6 | which accompanies this distribution. The full text of the license may be found at
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| 7 | http://opensource.org/licenses/bsd-license.php.
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| 8 |
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| 9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 11 |
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| 12 | **/
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| 13 |
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| 14 | #include "DxeIpl.h"
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| 15 |
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| 16 |
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| 17 | //
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| 18 | // Module Globals used in the DXE to PEI hand off
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| 19 | // These must be module globals, so the stack can be switched
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| 20 | //
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| 21 | CONST EFI_DXE_IPL_PPI mDxeIplPpi = {
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| 22 | DxeLoadCore
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| 23 | };
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| 24 |
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| 25 | CONST EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI mCustomGuidedSectionExtractionPpi = {
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| 26 | CustomGuidedSectionExtract
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| 27 | };
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| 28 |
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| 29 | CONST EFI_PEI_DECOMPRESS_PPI mDecompressPpi = {
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| 30 | Decompress
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| 31 | };
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| 32 |
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| 33 | CONST EFI_PEI_PPI_DESCRIPTOR mPpiList[] = {
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| 34 | {
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| 35 | EFI_PEI_PPI_DESCRIPTOR_PPI,
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| 36 | &gEfiDxeIplPpiGuid,
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| 37 | (VOID *) &mDxeIplPpi
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| 38 | },
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| 39 | {
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| 40 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
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| 41 | &gEfiPeiDecompressPpiGuid,
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| 42 | (VOID *) &mDecompressPpi
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| 43 | }
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| 44 | };
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| 45 |
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| 46 | CONST EFI_PEI_PPI_DESCRIPTOR gEndOfPeiSignalPpi = {
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| 47 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
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| 48 | &gEfiEndOfPeiSignalPpiGuid,
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| 49 | NULL
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| 50 | };
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| 51 |
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| 52 | /**
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| 53 | Entry point of DXE IPL PEIM.
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| 54 |
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| 55 | This function installs DXE IPL PPI and Decompress PPI. It also reloads
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| 56 | itself to memory on non-S3 resume boot path.
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| 57 |
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| 58 | @param[in] FileHandle Handle of the file being invoked.
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| 59 | @param[in] PeiServices Describes the list of possible PEI Services.
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| 60 |
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| 61 | @retval EFI_SUCESS The entry point of DXE IPL PEIM executes successfully.
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| 62 | @retval Others Some error occurs during the execution of this function.
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| 63 |
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| 64 | **/
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| 65 | EFI_STATUS
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| 66 | EFIAPI
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| 67 | PeimInitializeDxeIpl (
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| 68 | IN EFI_PEI_FILE_HANDLE FileHandle,
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| 69 | IN CONST EFI_PEI_SERVICES **PeiServices
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| 70 | )
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| 71 | {
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| 72 | EFI_STATUS Status;
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| 73 | EFI_GUID *ExtractHandlerGuidTable;
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| 74 | UINTN ExtractHandlerNumber;
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| 75 | EFI_PEI_PPI_DESCRIPTOR *GuidPpi;
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| 76 |
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| 77 | //
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| 78 | // Get custom extract guided section method guid list
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| 79 | //
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| 80 | ExtractHandlerNumber = ExtractGuidedSectionGetGuidList (&ExtractHandlerGuidTable);
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| 81 |
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| 82 | //
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| 83 | // Install custom extraction guid PPI
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| 84 | //
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| 85 | if (ExtractHandlerNumber > 0) {
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| 86 | GuidPpi = (EFI_PEI_PPI_DESCRIPTOR *) AllocatePool (ExtractHandlerNumber * sizeof (EFI_PEI_PPI_DESCRIPTOR));
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| 87 | ASSERT (GuidPpi != NULL);
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| 88 | while (ExtractHandlerNumber-- > 0) {
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| 89 | GuidPpi->Flags = EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST;
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| 90 | GuidPpi->Ppi = (VOID *) &mCustomGuidedSectionExtractionPpi;
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| 91 | GuidPpi->Guid = &ExtractHandlerGuidTable[ExtractHandlerNumber];
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| 92 | Status = PeiServicesInstallPpi (GuidPpi++);
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| 93 | ASSERT_EFI_ERROR(Status);
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| 94 | }
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| 95 | }
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| 96 |
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| 97 | //
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| 98 | // Install DxeIpl and Decompress PPIs.
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| 99 | //
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| 100 | Status = PeiServicesInstallPpi (mPpiList);
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| 101 | ASSERT_EFI_ERROR(Status);
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| 102 |
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| 103 | return Status;
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| 104 | }
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| 105 |
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| 106 | /**
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| 107 | The ExtractSection() function processes the input section and
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| 108 | returns a pointer to the section contents. If the section being
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| 109 | extracted does not require processing (if the section
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| 110 | GuidedSectionHeader.Attributes has the
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| 111 | EFI_GUIDED_SECTION_PROCESSING_REQUIRED field cleared), then
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| 112 | OutputBuffer is just updated to point to the start of the
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| 113 | section's contents. Otherwise, *Buffer must be allocated
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| 114 | from PEI permanent memory.
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| 115 |
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| 116 | @param[in] This Indicates the
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| 117 | EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI instance.
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| 118 | Buffer containing the input GUIDed section to be
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| 119 | processed. OutputBuffer OutputBuffer is
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| 120 | allocated from PEI permanent memory and contains
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| 121 | the new section stream.
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| 122 | @param[in] InputSection A pointer to the input buffer, which contains
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| 123 | the input section to be processed.
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| 124 | @param[out] OutputBuffer A pointer to a caller-allocated buffer, whose
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| 125 | size is specified by the contents of OutputSize.
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| 126 | @param[out] OutputSize A pointer to a caller-allocated
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| 127 | UINTN in which the size of *OutputBuffer
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| 128 | allocation is stored. If the function
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| 129 | returns anything other than EFI_SUCCESS,
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| 130 | the value of OutputSize is undefined.
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| 131 | @param[out] AuthenticationStatus A pointer to a caller-allocated
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| 132 | UINT32 that indicates the
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| 133 | authentication status of the
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| 134 | output buffer. If the input
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| 135 | section's GuidedSectionHeader.
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| 136 | Attributes field has the
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| 137 | EFI_GUIDED_SECTION_AUTH_STATUS_VALID
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| 138 | bit as clear,
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| 139 | AuthenticationStatus must return
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| 140 | zero. These bits reflect the
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| 141 | status of the extraction
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| 142 | operation. If the function
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| 143 | returns anything other than
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| 144 | EFI_SUCCESS, the value of
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| 145 | AuthenticationStatus is
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| 146 | undefined.
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| 147 |
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| 148 | @retval EFI_SUCCESS The InputSection was
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| 149 | successfully processed and the
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| 150 | section contents were returned.
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| 151 |
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| 152 | @retval EFI_OUT_OF_RESOURCES The system has insufficient
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| 153 | resources to process the request.
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| 154 |
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| 155 | @retval EFI_INVALID_PARAMETER The GUID in InputSection does
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| 156 | not match this instance of the
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| 157 | GUIDed Section Extraction PPI.
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| 158 |
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| 159 | **/
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| 160 | EFI_STATUS
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| 161 | EFIAPI
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| 162 | CustomGuidedSectionExtract (
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| 163 | IN CONST EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI *This,
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| 164 | IN CONST VOID *InputSection,
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| 165 | OUT VOID **OutputBuffer,
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| 166 | OUT UINTN *OutputSize,
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| 167 | OUT UINT32 *AuthenticationStatus
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| 168 | )
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| 169 | {
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| 170 | EFI_STATUS Status;
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| 171 | UINT8 *ScratchBuffer;
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| 172 | UINT32 ScratchBufferSize;
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| 173 | UINT32 OutputBufferSize;
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| 174 | UINT16 SectionAttribute;
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| 175 |
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| 176 | //
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| 177 | // Init local variable
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| 178 | //
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| 179 | ScratchBuffer = NULL;
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| 180 |
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| 181 | //
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| 182 | // Call GetInfo to get the size and attribute of input guided section data.
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| 183 | //
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| 184 | Status = ExtractGuidedSectionGetInfo (
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| 185 | InputSection,
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| 186 | &OutputBufferSize,
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| 187 | &ScratchBufferSize,
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| 188 | &SectionAttribute
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| 189 | );
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| 190 |
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| 191 | if (EFI_ERROR (Status)) {
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| 192 | DEBUG ((DEBUG_ERROR, "GetInfo from guided section Failed - %r\n", Status));
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| 193 | return Status;
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| 194 | }
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| 195 |
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| 196 | if (ScratchBufferSize != 0) {
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| 197 | //
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| 198 | // Allocate scratch buffer
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| 199 | //
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| 200 | ScratchBuffer = AllocatePages (EFI_SIZE_TO_PAGES (ScratchBufferSize));
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| 201 | if (ScratchBuffer == NULL) {
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| 202 | return EFI_OUT_OF_RESOURCES;
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| 203 | }
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| 204 | }
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| 205 |
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| 206 | if (((SectionAttribute & EFI_GUIDED_SECTION_PROCESSING_REQUIRED) != 0) && OutputBufferSize > 0) {
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| 207 | //
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| 208 | // Allocate output buffer
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| 209 | //
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| 210 | *OutputBuffer = AllocatePages (EFI_SIZE_TO_PAGES (OutputBufferSize) + 1);
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| 211 | if (*OutputBuffer == NULL) {
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| 212 | return EFI_OUT_OF_RESOURCES;
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| 213 | }
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| 214 | DEBUG ((DEBUG_INFO, "Customized Guided section Memory Size required is 0x%x and address is 0x%p\n", OutputBufferSize, *OutputBuffer));
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| 215 | //
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| 216 | // *OutputBuffer still is one section. Adjust *OutputBuffer offset,
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| 217 | // skip EFI section header to make section data at page alignment.
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| 218 | //
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| 219 | *OutputBuffer = (VOID *)((UINT8 *) *OutputBuffer + EFI_PAGE_SIZE - sizeof (EFI_COMMON_SECTION_HEADER));
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| 220 | }
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| 221 |
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| 222 | Status = ExtractGuidedSectionDecode (
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| 223 | InputSection,
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| 224 | OutputBuffer,
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| 225 | ScratchBuffer,
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| 226 | AuthenticationStatus
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| 227 | );
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| 228 | if (EFI_ERROR (Status)) {
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| 229 | //
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| 230 | // Decode failed
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| 231 | //
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| 232 | DEBUG ((DEBUG_ERROR, "Extract guided section Failed - %r\n", Status));
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| 233 | return Status;
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| 234 | }
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| 235 |
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| 236 | *OutputSize = (UINTN) OutputBufferSize;
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| 237 |
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| 238 | return EFI_SUCCESS;
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| 239 | }
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| 240 |
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| 241 |
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| 242 |
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| 243 | /**
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| 244 | Decompresses a section to the output buffer.
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| 245 |
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| 246 | This function looks up the compression type field in the input section and
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| 247 | applies the appropriate compression algorithm to compress the section to a
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| 248 | callee allocated buffer.
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| 249 |
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| 250 | @param[in] This Points to this instance of the
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| 251 | EFI_PEI_DECOMPRESS_PEI PPI.
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| 252 | @param[in] CompressionSection Points to the compressed section.
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| 253 | @param[out] OutputBuffer Holds the returned pointer to the decompressed
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| 254 | sections.
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| 255 | @param[out] OutputSize Holds the returned size of the decompress
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| 256 | section streams.
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| 257 |
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| 258 | @retval EFI_SUCCESS The section was decompressed successfully.
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| 259 | OutputBuffer contains the resulting data and
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| 260 | OutputSize contains the resulting size.
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| 261 |
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| 262 | **/
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| 263 | EFI_STATUS
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| 264 | EFIAPI
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| 265 | Decompress (
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| 266 | IN CONST EFI_PEI_DECOMPRESS_PPI *This,
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| 267 | IN CONST EFI_COMPRESSION_SECTION *CompressionSection,
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| 268 | OUT VOID **OutputBuffer,
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| 269 | OUT UINTN *OutputSize
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| 270 | )
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| 271 | {
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| 272 | EFI_STATUS Status;
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| 273 | UINT8 *DstBuffer;
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| 274 | UINT8 *ScratchBuffer;
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| 275 | UINT32 DstBufferSize;
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| 276 | UINT32 ScratchBufferSize;
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| 277 | VOID *CompressionSource;
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| 278 | UINT32 CompressionSourceSize;
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| 279 | UINT32 UncompressedLength;
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| 280 | UINT8 CompressionType;
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| 281 |
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| 282 | if (CompressionSection->CommonHeader.Type != EFI_SECTION_COMPRESSION) {
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| 283 | ASSERT (FALSE);
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| 284 | return EFI_INVALID_PARAMETER;
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| 285 | }
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| 286 |
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| 287 | if (IS_SECTION2 (CompressionSection)) {
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| 288 | CompressionSource = (VOID *) ((UINT8 *) CompressionSection + sizeof (EFI_COMPRESSION_SECTION2));
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| 289 | CompressionSourceSize = (UINT32) (SECTION2_SIZE (CompressionSection) - sizeof (EFI_COMPRESSION_SECTION2));
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| 290 | UncompressedLength = ((EFI_COMPRESSION_SECTION2 *) CompressionSection)->UncompressedLength;
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| 291 | CompressionType = ((EFI_COMPRESSION_SECTION2 *) CompressionSection)->CompressionType;
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| 292 | } else {
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| 293 | CompressionSource = (VOID *) ((UINT8 *) CompressionSection + sizeof (EFI_COMPRESSION_SECTION));
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| 294 | CompressionSourceSize = (UINT32) (SECTION_SIZE (CompressionSection) - sizeof (EFI_COMPRESSION_SECTION));
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| 295 | UncompressedLength = CompressionSection->UncompressedLength;
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| 296 | CompressionType = CompressionSection->CompressionType;
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| 297 | }
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| 298 |
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| 299 | //
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| 300 | // This is a compression set, expand it
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| 301 | //
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| 302 | switch (CompressionType) {
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| 303 | case EFI_STANDARD_COMPRESSION:
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| 304 | //
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| 305 | // Load EFI standard compression.
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| 306 | // For compressed data, decompress them to destination buffer.
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| 307 | //
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| 308 | Status = UefiDecompressGetInfo (
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| 309 | CompressionSource,
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| 310 | CompressionSourceSize,
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| 311 | &DstBufferSize,
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| 312 | &ScratchBufferSize
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| 313 | );
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| 314 | if (EFI_ERROR (Status)) {
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| 315 | //
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| 316 | // GetInfo failed
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| 317 | //
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| 318 | DEBUG ((DEBUG_ERROR, "Decompress GetInfo Failed - %r\n", Status));
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| 319 | return EFI_NOT_FOUND;
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| 320 | }
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| 321 | //
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| 322 | // Allocate scratch buffer
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| 323 | //
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| 324 | ScratchBuffer = AllocatePages (EFI_SIZE_TO_PAGES (ScratchBufferSize));
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| 325 | if (ScratchBuffer == NULL) {
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| 326 | return EFI_OUT_OF_RESOURCES;
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| 327 | }
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| 328 | //
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| 329 | // Allocate destination buffer, extra one page for adjustment
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| 330 | //
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| 331 | DstBuffer = AllocatePages (EFI_SIZE_TO_PAGES (DstBufferSize) + 1);
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| 332 | if (DstBuffer == NULL) {
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| 333 | return EFI_OUT_OF_RESOURCES;
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| 334 | }
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| 335 | //
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| 336 | // DstBuffer still is one section. Adjust DstBuffer offset, skip EFI section header
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| 337 | // to make section data at page alignment.
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| 338 | //
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| 339 | DstBuffer = DstBuffer + EFI_PAGE_SIZE - sizeof (EFI_COMMON_SECTION_HEADER);
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| 340 | //
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| 341 | // Call decompress function
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| 342 | //
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| 343 | Status = UefiDecompress (
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| 344 | CompressionSource,
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| 345 | DstBuffer,
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| 346 | ScratchBuffer
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| 347 | );
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| 348 | if (EFI_ERROR (Status)) {
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| 349 | //
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| 350 | // Decompress failed
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| 351 | //
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| 352 | DEBUG ((DEBUG_ERROR, "Decompress Failed - %r\n", Status));
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| 353 | return EFI_NOT_FOUND;
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| 354 | }
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| 355 | break;
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| 356 |
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| 357 | case EFI_NOT_COMPRESSED:
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| 358 | //
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| 359 | // Allocate destination buffer
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| 360 | //
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| 361 | DstBufferSize = UncompressedLength;
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| 362 | DstBuffer = AllocatePages (EFI_SIZE_TO_PAGES (DstBufferSize) + 1);
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| 363 | if (DstBuffer == NULL) {
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| 364 | return EFI_OUT_OF_RESOURCES;
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| 365 | }
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| 366 | //
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| 367 | // Adjust DstBuffer offset, skip EFI section header
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| 368 | // to make section data at page alignment.
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| 369 | //
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| 370 | DstBuffer = DstBuffer + EFI_PAGE_SIZE - sizeof (EFI_COMMON_SECTION_HEADER);
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| 371 | //
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| 372 | // stream is not actually compressed, just encapsulated. So just copy it.
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| 373 | //
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| 374 | CopyMem (DstBuffer, CompressionSource, DstBufferSize);
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| 375 | break;
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| 376 |
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| 377 | default:
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| 378 | //
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| 379 | // Don't support other unknown compression type.
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| 380 | //
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| 381 | ASSERT (FALSE);
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| 382 | return EFI_NOT_FOUND;
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| 383 | }
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| 384 |
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| 385 | *OutputSize = DstBufferSize;
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| 386 | *OutputBuffer = DstBuffer;
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| 387 |
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| 388 | return EFI_SUCCESS;
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| 389 | }
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| 390 |
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| 391 | /**
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| 392 | Main entry point to last PEIM.
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| 393 |
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| 394 | This function finds DXE Core in the firmware volume and transfer the control to
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| 395 | DXE core.
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| 396 |
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| 397 | @param[in] This Entry point for DXE IPL PPI.
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| 398 | @param[in] PeiServices General purpose services available to every PEIM.
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| 399 | @param[in] HobList Address to the Pei HOB list.
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| 400 |
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| 401 | @return EFI_SUCCESS DXE core was successfully loaded.
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| 402 | @return EFI_OUT_OF_RESOURCES There are not enough resources to load DXE core.
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| 403 |
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| 404 | **/
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| 405 | EFI_STATUS
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| 406 | EFIAPI
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| 407 | DxeLoadCore (
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| 408 | IN CONST EFI_DXE_IPL_PPI *This,
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| 409 | IN EFI_PEI_SERVICES **PeiServices,
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| 410 | IN EFI_PEI_HOB_POINTERS HobList
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| 411 | )
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| 412 | {
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| 413 | EFI_STATUS Status;
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| 414 |
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| 415 | DEBUG ((DEBUG_INFO | DEBUG_INIT, "FSP HOB is located at 0x%08X\n", HobList));
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| 416 |
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| 417 | //
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| 418 | // End of PEI phase signal
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|---|
| 419 | //
|
|---|
| 420 | Status = PeiServicesInstallPpi (&gEndOfPeiSignalPpi);
|
|---|
| 421 | ASSERT_EFI_ERROR (Status);
|
|---|
| 422 |
|
|---|
| 423 | //
|
|---|
| 424 | // Give control back to BootLoader after FspInit
|
|---|
| 425 | //
|
|---|
| 426 | DEBUG ((DEBUG_INFO | DEBUG_INIT, "FSP is waiting for NOTIFY\n"));
|
|---|
| 427 | FspInitDone ();
|
|---|
| 428 |
|
|---|
| 429 | //
|
|---|
| 430 | // BootLoader called FSP again through NotifyPhase
|
|---|
| 431 | //
|
|---|
| 432 | FspWaitForNotify ();
|
|---|
| 433 |
|
|---|
| 434 |
|
|---|
| 435 | //
|
|---|
| 436 | // Give control back to the boot loader framework caller
|
|---|
| 437 | //
|
|---|
| 438 | DEBUG ((DEBUG_INFO | DEBUG_INIT, "============= PEIM FSP is Completed =============\n\n"));
|
|---|
| 439 |
|
|---|
| 440 | SetFspApiReturnStatus(EFI_SUCCESS);
|
|---|
| 441 |
|
|---|
| 442 | SetFspMeasurePoint (FSP_PERF_ID_API_NOTIFY_RDYBOOT_EXIT);
|
|---|
| 443 |
|
|---|
| 444 | Pei2LoaderSwitchStack();
|
|---|
| 445 |
|
|---|
| 446 | //
|
|---|
| 447 | // Should not come here
|
|---|
| 448 | //
|
|---|
| 449 | while (TRUE) {
|
|---|
| 450 | DEBUG ((DEBUG_ERROR, "No FSP API should be called after FSP is DONE!\n"));
|
|---|
| 451 | SetFspApiReturnStatus(EFI_UNSUPPORTED);
|
|---|
| 452 | Pei2LoaderSwitchStack();
|
|---|
| 453 | }
|
|---|
| 454 |
|
|---|
| 455 | return EFI_SUCCESS;
|
|---|
| 456 | }
|
|---|
