diff options
Diffstat (limited to 'roms/edk2/EmbeddedPkg/Library/PrePiExtractGuidedSectionLib/PrePiExtractGuidedSectionLib.c')
| -rw-r--r-- | roms/edk2/EmbeddedPkg/Library/PrePiExtractGuidedSectionLib/PrePiExtractGuidedSectionLib.c | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/roms/edk2/EmbeddedPkg/Library/PrePiExtractGuidedSectionLib/PrePiExtractGuidedSectionLib.c b/roms/edk2/EmbeddedPkg/Library/PrePiExtractGuidedSectionLib/PrePiExtractGuidedSectionLib.c new file mode 100644 index 000000000..26deee3fd --- /dev/null +++ b/roms/edk2/EmbeddedPkg/Library/PrePiExtractGuidedSectionLib/PrePiExtractGuidedSectionLib.c @@ -0,0 +1,255 @@ +/** @file
+
+ Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <PiPei.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/ExtractGuidedSectionLib.h>
+#include <Library/PcdLib.h>
+#include <Library/PrePiLib.h>
+
+#define PRE_PI_EXTRACT_GUIDED_SECTION_DATA_GUID { 0x385A982C, 0x2F49, 0x4043, { 0xA5, 0x1E, 0x49, 0x01, 0x02, 0x5C, 0x8B, 0x6B }}
+
+typedef struct {
+ UINT32 NumberOfExtractHandler;
+ GUID *ExtractHandlerGuidTable;
+ EXTRACT_GUIDED_SECTION_DECODE_HANDLER *ExtractDecodeHandlerTable;
+ EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER *ExtractGetInfoHandlerTable;
+} PRE_PI_EXTRACT_GUIDED_SECTION_DATA;
+
+PRE_PI_EXTRACT_GUIDED_SECTION_DATA *
+GetSavedData (
+ VOID
+ )
+{
+ EFI_HOB_GUID_TYPE *GuidHob;
+ GUID SavedDataGuid = PRE_PI_EXTRACT_GUIDED_SECTION_DATA_GUID;
+
+ GuidHob = GetFirstGuidHob(&SavedDataGuid);
+ GuidHob++;
+
+ return (PRE_PI_EXTRACT_GUIDED_SECTION_DATA *)GuidHob;
+}
+
+RETURN_STATUS
+EFIAPI
+ExtractGuidedSectionRegisterHandlers (
+ IN CONST GUID *SectionGuid,
+ IN EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER GetInfoHandler,
+ IN EXTRACT_GUIDED_SECTION_DECODE_HANDLER DecodeHandler
+ )
+{
+ PRE_PI_EXTRACT_GUIDED_SECTION_DATA *SavedData;
+ UINT32 Index;
+ //
+ // Check input parameter.
+ //
+ if (SectionGuid == NULL) {
+ return RETURN_INVALID_PARAMETER;
+ }
+
+ SavedData = GetSavedData();
+
+ //
+ // Search the match registered GetInfo handler for the input guided section.
+ //
+ for (Index = 0; Index < SavedData->NumberOfExtractHandler; Index ++) {
+ if (CompareGuid (&SavedData->ExtractHandlerGuidTable[Index], SectionGuid)) {
+ break;
+ }
+ }
+
+ //
+ // If the guided handler has been registered before, only update its handler.
+ //
+ if (Index < SavedData->NumberOfExtractHandler) {
+ SavedData->ExtractDecodeHandlerTable [Index] = DecodeHandler;
+ SavedData->ExtractGetInfoHandlerTable [Index] = GetInfoHandler;
+ return RETURN_SUCCESS;
+ }
+
+ //
+ // Check the global table is enough to contain new Handler.
+ //
+ if (SavedData->NumberOfExtractHandler >= PcdGet32 (PcdMaximumGuidedExtractHandler)) {
+ return RETURN_OUT_OF_RESOURCES;
+ }
+
+ //
+ // Register new Handler and guid value.
+ //
+ CopyGuid (&SavedData->ExtractHandlerGuidTable [SavedData->NumberOfExtractHandler], SectionGuid);
+ SavedData->ExtractDecodeHandlerTable [SavedData->NumberOfExtractHandler] = DecodeHandler;
+ SavedData->ExtractGetInfoHandlerTable [SavedData->NumberOfExtractHandler++] = GetInfoHandler;
+
+ return RETURN_SUCCESS;
+}
+
+UINTN
+EFIAPI
+ExtractGuidedSectionGetGuidList (
+ IN OUT GUID **ExtractHandlerGuidTable
+ )
+{
+ PRE_PI_EXTRACT_GUIDED_SECTION_DATA *SavedData;
+
+ ASSERT(ExtractHandlerGuidTable != NULL);
+
+ SavedData = GetSavedData();
+
+ *ExtractHandlerGuidTable = SavedData->ExtractHandlerGuidTable;
+ return SavedData->NumberOfExtractHandler;
+}
+
+RETURN_STATUS
+EFIAPI
+ExtractGuidedSectionGetInfo (
+ IN CONST VOID *InputSection,
+ OUT UINT32 *OutputBufferSize,
+ OUT UINT32 *ScratchBufferSize,
+ OUT UINT16 *SectionAttribute
+ )
+{
+ PRE_PI_EXTRACT_GUIDED_SECTION_DATA *SavedData;
+ UINT32 Index;
+ EFI_GUID *SectionDefinitionGuid;
+
+ if (InputSection == NULL) {
+ return RETURN_INVALID_PARAMETER;
+ }
+
+ ASSERT (OutputBufferSize != NULL);
+ ASSERT (ScratchBufferSize != NULL);
+ ASSERT (SectionAttribute != NULL);
+
+ SavedData = GetSavedData();
+
+ if (IS_SECTION2 (InputSection)) {
+ SectionDefinitionGuid = &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)->SectionDefinitionGuid);
+ } else {
+ SectionDefinitionGuid = &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid);
+ }
+
+ //
+ // Search the match registered GetInfo handler for the input guided section.
+ //
+ for (Index = 0; Index < SavedData->NumberOfExtractHandler; Index ++) {
+ if (CompareGuid (&SavedData->ExtractHandlerGuidTable[Index], SectionDefinitionGuid)) {
+ break;
+ }
+ }
+
+ //
+ // Not found, the input guided section is not supported.
+ //
+ if (Index == SavedData->NumberOfExtractHandler) {
+ return RETURN_INVALID_PARAMETER;
+ }
+
+ //
+ // Call the match handler to getinfo for the input section data.
+ //
+ return SavedData->ExtractGetInfoHandlerTable [Index] (
+ InputSection,
+ OutputBufferSize,
+ ScratchBufferSize,
+ SectionAttribute
+ );
+}
+
+RETURN_STATUS
+EFIAPI
+ExtractGuidedSectionDecode (
+ IN CONST VOID *InputSection,
+ OUT VOID **OutputBuffer,
+ OUT VOID *ScratchBuffer, OPTIONAL
+ OUT UINT32 *AuthenticationStatus
+ )
+{
+ PRE_PI_EXTRACT_GUIDED_SECTION_DATA *SavedData;
+ UINT32 Index;
+ EFI_GUID *SectionDefinitionGuid;
+
+ if (InputSection == NULL) {
+ return RETURN_INVALID_PARAMETER;
+ }
+
+ ASSERT (OutputBuffer != NULL);
+ ASSERT (AuthenticationStatus != NULL);
+
+ SavedData = GetSavedData();
+
+ if (IS_SECTION2 (InputSection)) {
+ SectionDefinitionGuid = &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)->SectionDefinitionGuid);
+ } else {
+ SectionDefinitionGuid = &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid);
+ }
+
+ //
+ // Search the match registered GetInfo handler for the input guided section.
+ //
+ for (Index = 0; Index < SavedData->NumberOfExtractHandler; Index ++) {
+ if (CompareGuid (&SavedData->ExtractHandlerGuidTable[Index], SectionDefinitionGuid)) {
+ break;
+ }
+ }
+
+ //
+ // Not found, the input guided section is not supported.
+ //
+ if (Index == SavedData->NumberOfExtractHandler) {
+ return RETURN_INVALID_PARAMETER;
+ }
+
+ //
+ // Call the match handler to getinfo for the input section data.
+ //
+ return SavedData->ExtractDecodeHandlerTable [Index] (
+ InputSection,
+ OutputBuffer,
+ ScratchBuffer,
+ AuthenticationStatus
+ );
+}
+
+RETURN_STATUS
+EFIAPI
+ExtractGuidedSectionLibConstructor (
+ VOID
+ )
+{
+ PRE_PI_EXTRACT_GUIDED_SECTION_DATA SavedData;
+ GUID HobGuid = PRE_PI_EXTRACT_GUIDED_SECTION_DATA_GUID;
+
+ //
+ // Allocate global pool space to store the registered handler and its guid value.
+ //
+ SavedData.ExtractHandlerGuidTable = (GUID *)AllocatePool(PcdGet32(PcdMaximumGuidedExtractHandler) * sizeof(GUID));
+ if (SavedData.ExtractHandlerGuidTable == NULL) {
+ return RETURN_OUT_OF_RESOURCES;
+ }
+
+ SavedData.ExtractDecodeHandlerTable = (EXTRACT_GUIDED_SECTION_DECODE_HANDLER *)AllocatePool(PcdGet32(PcdMaximumGuidedExtractHandler) * sizeof(EXTRACT_GUIDED_SECTION_DECODE_HANDLER));
+ if (SavedData.ExtractDecodeHandlerTable == NULL) {
+ return RETURN_OUT_OF_RESOURCES;
+ }
+
+ SavedData.ExtractGetInfoHandlerTable = (EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER *)AllocatePool(PcdGet32(PcdMaximumGuidedExtractHandler) * sizeof(EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER));
+ if (SavedData.ExtractGetInfoHandlerTable == NULL) {
+ return RETURN_OUT_OF_RESOURCES;
+ }
+
+ //
+ // the initialized number is Zero.
+ //
+ SavedData.NumberOfExtractHandler = 0;
+
+ BuildGuidDataHob(&HobGuid, &SavedData, sizeof(SavedData));
+
+ return RETURN_SUCCESS;
+}
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