diff options
Diffstat (limited to 'MdeModulePkg')
7 files changed, 1 insertions, 2489 deletions
diff --git a/MdeModulePkg/MdeModulePkg.dsc b/MdeModulePkg/MdeModulePkg.dsc index 388bca25bd..3b315fca5a 100644 --- a/MdeModulePkg/MdeModulePkg.dsc +++ b/MdeModulePkg/MdeModulePkg.dsc @@ -2,7 +2,7 @@ # EFI/PI Reference Module Package for All Architectures
#
# (C) Copyright 2014 Hewlett-Packard Development Company, L.P.<BR>
-# Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2019, Intel Corporation. All rights reserved.<BR>
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@@ -444,9 +444,6 @@ MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf
!endif
-[Components.IA32, Components.X64, Components.Ebc]
- MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf
-
[Components.IA32, Components.X64]
MdeModulePkg/Universal/DebugSupportDxe/DebugSupportDxe.inf
MdeModulePkg/Application/SmiHandlerProfileInfo/SmiHandlerProfileInfo.inf
diff --git a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariable.c b/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariable.c deleted file mode 100644 index 1bcf931b96..0000000000 --- a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariable.c +++ /dev/null @@ -1,1820 +0,0 @@ -/** @file
-
- Emulation Variable services operate on the runtime volatile memory.
- The nonvolatile variable space doesn't exist.
-
-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
-This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "Variable.h"
-
-///
-/// Don't use module globals after the SetVirtualAddress map is signaled
-///
-ESAL_VARIABLE_GLOBAL *mVariableModuleGlobal;
-
-VARIABLE_INFO_ENTRY *gVariableInfo = NULL;
-
-///
-/// The size of a 3 character ISO639 language code.
-///
-#define ISO_639_2_ENTRY_SIZE 3
-
-/**
- Update the variable region with Variable information. These are the same
- arguments as the EFI Variable services.
-
- @param[in] VariableName Name of variable
-
- @param[in] VendorGuid Guid of variable
-
- @param[in] Data Variable data
-
- @param[in] DataSize Size of data. 0 means delete
-
- @param[in] Attributes Attribues of the variable
-
- @param[in] Variable The variable information which is used to keep track of variable usage.
-
- @retval EFI_SUCCESS The update operation is success.
-
- @retval EFI_OUT_OF_RESOURCES Variable region is full, can not write other data into this region.
-
-**/
-EFI_STATUS
-EFIAPI
-UpdateVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- IN VOID *Data,
- IN UINTN DataSize,
- IN UINT32 Attributes OPTIONAL,
- IN VARIABLE_POINTER_TRACK *Variable
- );
-
-/**
- Finds variable in storage blocks of volatile and non-volatile storage areas.
-
- This code finds variable in storage blocks of volatile and non-volatile storage areas.
- If VariableName is an empty string, then we just return the first
- qualified variable without comparing VariableName and VendorGuid.
- Otherwise, VariableName and VendorGuid are compared.
-
- @param VariableName Name of the variable to be found.
- @param VendorGuid Vendor GUID to be found.
- @param PtrTrack VARIABLE_POINTER_TRACK structure for output,
- including the range searched and the target position.
- @param Global Pointer to VARIABLE_GLOBAL structure, including
- base of volatile variable storage area, base of
- NV variable storage area, and a lock.
-
- @retval EFI_INVALID_PARAMETER If VariableName is not an empty string, while
- VendorGuid is NULL.
- @retval EFI_SUCCESS Variable successfully found.
- @retval EFI_NOT_FOUND Variable not found.
-
-**/
-EFI_STATUS
-FindVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- OUT VARIABLE_POINTER_TRACK *PtrTrack,
- IN VARIABLE_GLOBAL *Global
- );
-
-/**
- Acquires lock only at boot time. Simply returns at runtime.
-
- This is a temperary function which will be removed when
- EfiAcquireLock() in UefiLib can handle the call in UEFI
- Runtimer driver in RT phase.
- It calls EfiAcquireLock() at boot time, and simply returns
- at runtime
-
- @param Lock A pointer to the lock to acquire
-
-**/
-VOID
-AcquireLockOnlyAtBootTime (
- IN EFI_LOCK *Lock
- )
-{
- if (!EfiAtRuntime ()) {
- EfiAcquireLock (Lock);
- }
-}
-
-/**
- Releases lock only at boot time. Simply returns at runtime.
-
- This is a temperary function which will be removed when
- EfiReleaseLock() in UefiLib can handle the call in UEFI
- Runtimer driver in RT phase.
- It calls EfiReleaseLock() at boot time, and simply returns
- at runtime
-
- @param Lock A pointer to the lock to release
-
-**/
-VOID
-ReleaseLockOnlyAtBootTime (
- IN EFI_LOCK *Lock
- )
-{
- if (!EfiAtRuntime ()) {
- EfiReleaseLock (Lock);
- }
-}
-
-/**
- Gets pointer to the variable data.
-
- This function gets the pointer to the variable data according
- to the input pointer to the variable header.
-
- @param Variable Pointer to the variable header.
-
- @return Pointer to variable data
-
-**/
-UINT8 *
-GetVariableDataPtr (
- IN VARIABLE_HEADER *Variable
- )
-{
- if (Variable->StartId != VARIABLE_DATA) {
- return NULL;
- }
- //
- // Be careful about pad size for alignment
- //
- return (UINT8 *) ((UINTN) GET_VARIABLE_NAME_PTR (Variable) + Variable->NameSize + GET_PAD_SIZE (Variable->NameSize));
-}
-
-/**
- Gets pointer to header of the next potential variable.
-
- This function gets the pointer to the next potential variable header
- according to the input point to the variable header. The return value
- is not a valid variable if the input variable was the last variable
- in the variabl store.
-
- @param Variable Pointer to header of the next variable
-
- @return Pointer to next variable header.
- @retval NULL Input was not a valid variable header.
-
-**/
-VARIABLE_HEADER *
-GetNextPotentialVariablePtr (
- IN VARIABLE_HEADER *Variable
- )
-{
- VARIABLE_HEADER *VarHeader;
-
- if (Variable->StartId != VARIABLE_DATA) {
- return NULL;
- }
- //
- // Be careful about pad size for alignment
- //
- VarHeader = (VARIABLE_HEADER *) HEADER_ALIGN ((UINTN) GetVariableDataPtr (Variable) + Variable->DataSize + GET_PAD_SIZE (Variable->DataSize));
-
- return VarHeader;
-}
-
-/**
- Gets pointer to header of the next variable.
-
- This function gets the pointer to the next variable header according
- to the input point to the variable header.
-
- @param Variable Pointer to header of the next variable
-
- @return Pointer to next variable header.
-
-**/
-VARIABLE_HEADER *
-GetNextVariablePtr (
- IN VARIABLE_HEADER *Variable
- )
-{
- VARIABLE_HEADER *VarHeader;
-
- VarHeader = GetNextPotentialVariablePtr (Variable);
-
- if ((VarHeader == NULL) || (VarHeader->StartId != VARIABLE_DATA)) {
- return NULL;
- }
-
- return VarHeader;
-}
-
-/**
- Updates LastVariableOffset variable for the given variable store.
-
- LastVariableOffset points to the offset to use for the next variable
- when updating the variable store.
-
- @param[in] VariableStore Pointer to the start of the variable store
- @param[out] LastVariableOffset Offset to put the next new variable in
-
-**/
-VOID
-InitializeLocationForLastVariableOffset (
- IN VARIABLE_STORE_HEADER *VariableStore,
- OUT UINTN *LastVariableOffset
- )
-{
- VARIABLE_HEADER *VarHeader;
-
- *LastVariableOffset = sizeof (VARIABLE_STORE_HEADER);
- VarHeader = (VARIABLE_HEADER*) ((UINT8*)VariableStore + *LastVariableOffset);
- while (VarHeader->StartId == VARIABLE_DATA) {
- VarHeader = GetNextPotentialVariablePtr (VarHeader);
-
- if (VarHeader != NULL) {
- *LastVariableOffset = (UINTN) VarHeader - (UINTN) VariableStore;
- } else {
- return;
- }
- }
-}
-
-/**
- Gets pointer to the end of the variable storage area.
-
- This function gets pointer to the end of the variable storage
- area, according to the input variable store header.
-
- @param VolHeader Pointer to the variale store header
-
- @return Pointer to the end of the variable storage area.
-
-**/
-VARIABLE_HEADER *
-GetEndPointer (
- IN VARIABLE_STORE_HEADER *VolHeader
- )
-{
- //
- // The end of variable store
- //
- return (VARIABLE_HEADER *) HEADER_ALIGN ((UINTN) VolHeader + VolHeader->Size);
-}
-
-/**
- Routine used to track statistical information about variable usage.
- The data is stored in the EFI system table so it can be accessed later.
- VariableInfo.efi can dump out the table. Only Boot Services variable
- accesses are tracked by this code. The PcdVariableCollectStatistics
- build flag controls if this feature is enabled.
-
- A read that hits in the cache will have Read and Cache true for
- the transaction. Data is allocated by this routine, but never
- freed.
-
- @param[in] VariableName Name of the Variable to track
- @param[in] VendorGuid Guid of the Variable to track
- @param[in] Volatile TRUE if volatile FALSE if non-volatile
- @param[in] Read TRUE if GetVariable() was called
- @param[in] Write TRUE if SetVariable() was called
- @param[in] Delete TRUE if deleted via SetVariable()
- @param[in] Cache TRUE for a cache hit.
-
-**/
-VOID
-UpdateVariableInfo (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- IN BOOLEAN Volatile,
- IN BOOLEAN Read,
- IN BOOLEAN Write,
- IN BOOLEAN Delete,
- IN BOOLEAN Cache
- )
-{
- VARIABLE_INFO_ENTRY *Entry;
-
- if (FeaturePcdGet (PcdVariableCollectStatistics)) {
-
- if (EfiAtRuntime ()) {
- // Don't collect statistics at runtime
- return;
- }
-
- if (gVariableInfo == NULL) {
- //
- // on the first call allocate a entry and place a pointer to it in
- // the EFI System Table
- //
- gVariableInfo = AllocateZeroPool (sizeof (VARIABLE_INFO_ENTRY));
- ASSERT (gVariableInfo != NULL);
-
- CopyGuid (&gVariableInfo->VendorGuid, VendorGuid);
- gVariableInfo->Name = AllocateZeroPool (StrSize (VariableName));
- ASSERT (gVariableInfo->Name != NULL);
- StrCpyS (gVariableInfo->Name, StrSize(VariableName)/sizeof(CHAR16), VariableName);
- gVariableInfo->Volatile = Volatile;
-
- gBS->InstallConfigurationTable (&gEfiVariableGuid, gVariableInfo);
- }
-
-
- for (Entry = gVariableInfo; Entry != NULL; Entry = Entry->Next) {
- if (CompareGuid (VendorGuid, &Entry->VendorGuid)) {
- if (StrCmp (VariableName, Entry->Name) == 0) {
- if (Read) {
- Entry->ReadCount++;
- }
- if (Write) {
- Entry->WriteCount++;
- }
- if (Delete) {
- Entry->DeleteCount++;
- }
- if (Cache) {
- Entry->CacheCount++;
- }
-
- return;
- }
- }
-
- if (Entry->Next == NULL) {
- //
- // If the entry is not in the table add it.
- // Next iteration of the loop will fill in the data
- //
- Entry->Next = AllocateZeroPool (sizeof (VARIABLE_INFO_ENTRY));
- ASSERT (Entry->Next != NULL);
-
- CopyGuid (&Entry->Next->VendorGuid, VendorGuid);
- Entry->Next->Name = AllocateZeroPool (StrSize (VariableName));
- ASSERT (Entry->Next->Name != NULL);
- StrCpyS (Entry->Next->Name, StrSize(VariableName)/sizeof(CHAR16), VariableName);
- Entry->Next->Volatile = Volatile;
- }
-
- }
- }
-}
-
-/**
- Get index from supported language codes according to language string.
-
- This code is used to get corresponding index in supported language codes. It can handle
- RFC4646 and ISO639 language tags.
- In ISO639 language tags, take 3-characters as a delimitation to find matched string and calculate the index.
- In RFC4646 language tags, take semicolon as a delimitation to find matched string and calculate the index.
-
- For example:
- SupportedLang = "engfraengfra"
- Lang = "eng"
- Iso639Language = TRUE
- The return value is "0".
- Another example:
- SupportedLang = "en;fr;en-US;fr-FR"
- Lang = "fr-FR"
- Iso639Language = FALSE
- The return value is "3".
-
- @param SupportedLang Platform supported language codes.
- @param Lang Configured language.
- @param Iso639Language A bool value to signify if the handler is operated on ISO639 or RFC4646.
-
- @retval the index of language in the language codes.
-
-**/
-UINTN
-GetIndexFromSupportedLangCodes(
- IN CHAR8 *SupportedLang,
- IN CHAR8 *Lang,
- IN BOOLEAN Iso639Language
- )
-{
- UINTN Index;
- UINTN CompareLength;
- UINTN LanguageLength;
-
- if (Iso639Language) {
- CompareLength = ISO_639_2_ENTRY_SIZE;
- for (Index = 0; Index < AsciiStrLen (SupportedLang); Index += CompareLength) {
- if (AsciiStrnCmp (Lang, SupportedLang + Index, CompareLength) == 0) {
- //
- // Successfully find the index of Lang string in SupportedLang string.
- //
- Index = Index / CompareLength;
- return Index;
- }
- }
- ASSERT (FALSE);
- return 0;
- } else {
- //
- // Compare RFC4646 language code
- //
- Index = 0;
- for (LanguageLength = 0; Lang[LanguageLength] != '\0'; LanguageLength++);
-
- for (Index = 0; *SupportedLang != '\0'; Index++, SupportedLang += CompareLength) {
- //
- // Skip ';' characters in SupportedLang
- //
- for (; *SupportedLang != '\0' && *SupportedLang == ';'; SupportedLang++);
- //
- // Determine the length of the next language code in SupportedLang
- //
- for (CompareLength = 0; SupportedLang[CompareLength] != '\0' && SupportedLang[CompareLength] != ';'; CompareLength++);
-
- if ((CompareLength == LanguageLength) &&
- (AsciiStrnCmp (Lang, SupportedLang, CompareLength) == 0)) {
- //
- // Successfully find the index of Lang string in SupportedLang string.
- //
- return Index;
- }
- }
- ASSERT (FALSE);
- return 0;
- }
-}
-
-/**
- Get language string from supported language codes according to index.
-
- This code is used to get corresponding language string in supported language codes. It can handle
- RFC4646 and ISO639 language tags.
- In ISO639 language tags, take 3-characters as a delimitation. Find language string according to the index.
- In RFC4646 language tags, take semicolon as a delimitation. Find language string according to the index.
-
- For example:
- SupportedLang = "engfraengfra"
- Index = "1"
- Iso639Language = TRUE
- The return value is "fra".
- Another example:
- SupportedLang = "en;fr;en-US;fr-FR"
- Index = "1"
- Iso639Language = FALSE
- The return value is "fr".
-
- @param SupportedLang Platform supported language codes.
- @param Index the index in supported language codes.
- @param Iso639Language A bool value to signify if the handler is operated on ISO639 or RFC4646.
-
- @retval the language string in the language codes.
-
-**/
-CHAR8 *
-GetLangFromSupportedLangCodes (
- IN CHAR8 *SupportedLang,
- IN UINTN Index,
- IN BOOLEAN Iso639Language
-)
-{
- UINTN SubIndex;
- UINTN CompareLength;
- CHAR8 *Supported;
-
- SubIndex = 0;
- Supported = SupportedLang;
- if (Iso639Language) {
- //
- // according to the index of Lang string in SupportedLang string to get the language.
- // As this code will be invoked in RUNTIME, therefore there is not memory allocate/free operation.
- // In driver entry, it pre-allocates a runtime attribute memory to accommodate this string.
- //
- CompareLength = ISO_639_2_ENTRY_SIZE;
- mVariableModuleGlobal->Lang[CompareLength] = '\0';
- return CopyMem (mVariableModuleGlobal->Lang, SupportedLang + Index * CompareLength, CompareLength);
-
- } else {
- while (TRUE) {
- //
- // take semicolon as delimitation, sequentially traverse supported language codes.
- //
- for (CompareLength = 0; *Supported != ';' && *Supported != '\0'; CompareLength++) {
- Supported++;
- }
- if ((*Supported == '\0') && (SubIndex != Index)) {
- //
- // Have completed the traverse, but not find corrsponding string.
- // This case is not allowed to happen.
- //
- ASSERT(FALSE);
- return NULL;
- }
- if (SubIndex == Index) {
- //
- // according to the index of Lang string in SupportedLang string to get the language.
- // As this code will be invoked in RUNTIME, therefore there is not memory allocate/free operation.
- // In driver entry, it pre-allocates a runtime attribute memory to accommodate this string.
- //
- mVariableModuleGlobal->PlatformLang[CompareLength] = '\0';
- return CopyMem (mVariableModuleGlobal->PlatformLang, Supported - CompareLength, CompareLength);
- }
- SubIndex++;
-
- //
- // Skip ';' characters in Supported
- //
- for (; *Supported != '\0' && *Supported == ';'; Supported++);
- }
- }
-}
-
-/**
- Returns a pointer to an allocated buffer that contains the best matching language
- from a set of supported languages.
-
- This function supports both ISO 639-2 and RFC 4646 language codes, but language
- code types may not be mixed in a single call to this function. This function
- supports a variable argument list that allows the caller to pass in a prioritized
- list of language codes to test against all the language codes in SupportedLanguages.
-
- If SupportedLanguages is NULL, then ASSERT().
-
- @param[in] SupportedLanguages A pointer to a Null-terminated ASCII string that
- contains a set of language codes in the format
- specified by Iso639Language.
- @param[in] Iso639Language If not zero, then all language codes are assumed to be
- in ISO 639-2 format. If zero, then all language
- codes are assumed to be in RFC 4646 language format
- @param[in] ... A variable argument list that contains pointers to
- Null-terminated ASCII strings that contain one or more
- language codes in the format specified by Iso639Language.
- The first language code from each of these language
- code lists is used to determine if it is an exact or
- close match to any of the language codes in
- SupportedLanguages. Close matches only apply to RFC 4646
- language codes, and the matching algorithm from RFC 4647
- is used to determine if a close match is present. If
- an exact or close match is found, then the matching
- language code from SupportedLanguages is returned. If
- no matches are found, then the next variable argument
- parameter is evaluated. The variable argument list
- is terminated by a NULL.
-
- @retval NULL The best matching language could not be found in SupportedLanguages.
- @retval NULL There are not enough resources available to return the best matching
- language.
- @retval Other A pointer to a Null-terminated ASCII string that is the best matching
- language in SupportedLanguages.
-
-**/
-CHAR8 *
-EFIAPI
-VariableGetBestLanguage (
- IN CONST CHAR8 *SupportedLanguages,
- IN UINTN Iso639Language,
- ...
- )
-{
- VA_LIST Args;
- CHAR8 *Language;
- UINTN CompareLength;
- UINTN LanguageLength;
- CONST CHAR8 *Supported;
- CHAR8 *Buffer;
-
- ASSERT (SupportedLanguages != NULL);
-
- VA_START (Args, Iso639Language);
- while ((Language = VA_ARG (Args, CHAR8 *)) != NULL) {
- //
- // Default to ISO 639-2 mode
- //
- CompareLength = 3;
- LanguageLength = MIN (3, AsciiStrLen (Language));
-
- //
- // If in RFC 4646 mode, then determine the length of the first RFC 4646 language code in Language
- //
- if (Iso639Language == 0) {
- for (LanguageLength = 0; Language[LanguageLength] != 0 && Language[LanguageLength] != ';'; LanguageLength++);
- }
-
- //
- // Trim back the length of Language used until it is empty
- //
- while (LanguageLength > 0) {
- //
- // Loop through all language codes in SupportedLanguages
- //
- for (Supported = SupportedLanguages; *Supported != '\0'; Supported += CompareLength) {
- //
- // In RFC 4646 mode, then Loop through all language codes in SupportedLanguages
- //
- if (Iso639Language == 0) {
- //
- // Skip ';' characters in Supported
- //
- for (; *Supported != '\0' && *Supported == ';'; Supported++);
- //
- // Determine the length of the next language code in Supported
- //
- for (CompareLength = 0; Supported[CompareLength] != 0 && Supported[CompareLength] != ';'; CompareLength++);
- //
- // If Language is longer than the Supported, then skip to the next language
- //
- if (LanguageLength > CompareLength) {
- continue;
- }
- }
- //
- // See if the first LanguageLength characters in Supported match Language
- //
- if (AsciiStrnCmp (Supported, Language, LanguageLength) == 0) {
- VA_END (Args);
-
- Buffer = (Iso639Language != 0) ? mVariableModuleGlobal->Lang : mVariableModuleGlobal->PlatformLang;
- Buffer[CompareLength] = '\0';
- return CopyMem (Buffer, Supported, CompareLength);
- }
- }
-
- if (Iso639Language != 0) {
- //
- // If ISO 639 mode, then each language can only be tested once
- //
- LanguageLength = 0;
- } else {
- //
- // If RFC 4646 mode, then trim Language from the right to the next '-' character
- //
- for (LanguageLength--; LanguageLength > 0 && Language[LanguageLength] != '-'; LanguageLength--);
- }
- }
- }
- VA_END (Args);
-
- //
- // No matches were found
- //
- return NULL;
-}
-
-/**
- Hook the operations in PlatformLangCodes, LangCodes, PlatformLang and Lang.
-
- When setting Lang/LangCodes, simultaneously update PlatformLang/PlatformLangCodes.
-
- According to UEFI spec, PlatformLangCodes/LangCodes are only set once in firmware initialization,
- and are read-only. Therefore, in variable driver, only store the original value for other use.
-
- @param[in] VariableName Name of variable
-
- @param[in] Data Variable data
-
- @param[in] DataSize Size of data. 0 means delete
-
-**/
-VOID
-AutoUpdateLangVariable(
- IN CHAR16 *VariableName,
- IN VOID *Data,
- IN UINTN DataSize
- )
-{
- EFI_STATUS Status;
- CHAR8 *BestPlatformLang;
- CHAR8 *BestLang;
- UINTN Index;
- UINT32 Attributes;
- VARIABLE_POINTER_TRACK Variable;
- BOOLEAN SetLanguageCodes;
-
- //
- // Don't do updates for delete operation
- //
- if (DataSize == 0) {
- return;
- }
-
- SetLanguageCodes = FALSE;
-
- if (StrCmp (VariableName, L"PlatformLangCodes") == 0) {
- //
- // PlatformLangCodes is a volatile variable, so it can not be updated at runtime.
- //
- if (EfiAtRuntime ()) {
- return;
- }
-
- SetLanguageCodes = TRUE;
-
- //
- // According to UEFI spec, PlatformLangCodes is only set once in firmware initialization, and is read-only
- // Therefore, in variable driver, only store the original value for other use.
- //
- if (mVariableModuleGlobal->PlatformLangCodes != NULL) {
- FreePool (mVariableModuleGlobal->PlatformLangCodes);
- }
- mVariableModuleGlobal->PlatformLangCodes = AllocateRuntimeCopyPool (DataSize, Data);
- ASSERT (mVariableModuleGlobal->PlatformLangCodes != NULL);
-
- //
- // PlatformLang holds a single language from PlatformLangCodes,
- // so the size of PlatformLangCodes is enough for the PlatformLang.
- //
- if (mVariableModuleGlobal->PlatformLang != NULL) {
- FreePool (mVariableModuleGlobal->PlatformLang);
- }
- mVariableModuleGlobal->PlatformLang = AllocateRuntimePool (DataSize);
- ASSERT (mVariableModuleGlobal->PlatformLang != NULL);
-
- } else if (StrCmp (VariableName, L"LangCodes") == 0) {
- //
- // LangCodes is a volatile variable, so it can not be updated at runtime.
- //
- if (EfiAtRuntime ()) {
- return;
- }
-
- SetLanguageCodes = TRUE;
-
- //
- // According to UEFI spec, LangCodes is only set once in firmware initialization, and is read-only
- // Therefore, in variable driver, only store the original value for other use.
- //
- if (mVariableModuleGlobal->LangCodes != NULL) {
- FreePool (mVariableModuleGlobal->LangCodes);
- }
- mVariableModuleGlobal->LangCodes = AllocateRuntimeCopyPool (DataSize, Data);
- ASSERT (mVariableModuleGlobal->LangCodes != NULL);
- }
-
- if (SetLanguageCodes
- && (mVariableModuleGlobal->PlatformLangCodes != NULL)
- && (mVariableModuleGlobal->LangCodes != NULL)) {
- //
- // Update Lang if PlatformLang is already set
- // Update PlatformLang if Lang is already set
- //
- Status = FindVariable (L"PlatformLang", &gEfiGlobalVariableGuid, &Variable, (VARIABLE_GLOBAL *) mVariableModuleGlobal);
- if (!EFI_ERROR (Status)) {
- //
- // Update Lang
- //
- VariableName = L"PlatformLang";
- Data = GetVariableDataPtr (Variable.CurrPtr);
- DataSize = Variable.CurrPtr->DataSize;
- } else {
- Status = FindVariable (L"Lang", &gEfiGlobalVariableGuid, &Variable, (VARIABLE_GLOBAL *) mVariableModuleGlobal);
- if (!EFI_ERROR (Status)) {
- //
- // Update PlatformLang
- //
- VariableName = L"Lang";
- Data = GetVariableDataPtr (Variable.CurrPtr);
- DataSize = Variable.CurrPtr->DataSize;
- } else {
- //
- // Neither PlatformLang nor Lang is set, directly return
- //
- return;
- }
- }
- }
-
- //
- // According to UEFI spec, "Lang" and "PlatformLang" is NV|BS|RT attributions.
- //
- Attributes = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS;
-
- if (StrCmp (VariableName, L"PlatformLang") == 0) {
- //
- // Update Lang when PlatformLangCodes/LangCodes were set.
- //
- if ((mVariableModuleGlobal->PlatformLangCodes != NULL) && (mVariableModuleGlobal->LangCodes != NULL)) {
- //
- // When setting PlatformLang, firstly get most matched language string from supported language codes.
- //
- BestPlatformLang = VariableGetBestLanguage (mVariableModuleGlobal->PlatformLangCodes, FALSE, Data, NULL);
- if (BestPlatformLang != NULL) {
- //
- // Get the corresponding index in language codes.
- //
- Index = GetIndexFromSupportedLangCodes (mVariableModuleGlobal->PlatformLangCodes, BestPlatformLang, FALSE);
-
- //
- // Get the corresponding ISO639 language tag according to RFC4646 language tag.
- //
- BestLang = GetLangFromSupportedLangCodes (mVariableModuleGlobal->LangCodes, Index, TRUE);
-
- //
- // Successfully convert PlatformLang to Lang, and set the BestLang value into Lang variable simultaneously.
- //
- FindVariable (L"Lang", &gEfiGlobalVariableGuid, &Variable, (VARIABLE_GLOBAL *)mVariableModuleGlobal);
-
- Status = UpdateVariable (L"Lang", &gEfiGlobalVariableGuid, BestLang, ISO_639_2_ENTRY_SIZE + 1, Attributes, &Variable);
-
- DEBUG ((EFI_D_INFO, "Variable Driver Auto Update PlatformLang, PlatformLang:%a, Lang:%a\n", BestPlatformLang, BestLang));
-
- ASSERT_EFI_ERROR(Status);
- }
- }
-
- } else if (StrCmp (VariableName, L"Lang") == 0) {
- //
- // Update PlatformLang when PlatformLangCodes/LangCodes were set.
- //
- if ((mVariableModuleGlobal->PlatformLangCodes != NULL) && (mVariableModuleGlobal->LangCodes != NULL)) {
- //
- // When setting Lang, firstly get most matched language string from supported language codes.
- //
- BestLang = VariableGetBestLanguage (mVariableModuleGlobal->LangCodes, TRUE, Data, NULL);
- if (BestLang != NULL) {
- //
- // Get the corresponding index in language codes.
- //
- Index = GetIndexFromSupportedLangCodes (mVariableModuleGlobal->LangCodes, BestLang, TRUE);
-
- //
- // Get the corresponding RFC4646 language tag according to ISO639 language tag.
- //
- BestPlatformLang = GetLangFromSupportedLangCodes (mVariableModuleGlobal->PlatformLangCodes, Index, FALSE);
-
- //
- // Successfully convert Lang to PlatformLang, and set the BestPlatformLang value into PlatformLang variable simultaneously.
- //
- FindVariable (L"PlatformLang", &gEfiGlobalVariableGuid, &Variable, (VARIABLE_GLOBAL *)mVariableModuleGlobal);
-
- Status = UpdateVariable (L"PlatformLang", &gEfiGlobalVariableGuid, BestPlatformLang,
- AsciiStrSize (BestPlatformLang), Attributes, &Variable);
-
- DEBUG ((EFI_D_INFO, "Variable Driver Auto Update Lang, Lang:%a, PlatformLang:%a\n", BestLang, BestPlatformLang));
- ASSERT_EFI_ERROR (Status);
- }
- }
- }
-}
-
-/**
- Update the variable region with Variable information. These are the same
- arguments as the EFI Variable services.
-
- @param[in] VariableName Name of variable
-
- @param[in] VendorGuid Guid of variable
-
- @param[in] Data Variable data
-
- @param[in] DataSize Size of data. 0 means delete
-
- @param[in] Attributes Attribues of the variable
-
- @param[in] Variable The variable information which is used to keep track of variable usage.
-
- @retval EFI_SUCCESS The update operation is success.
-
- @retval EFI_OUT_OF_RESOURCES Variable region is full, can not write other data into this region.
-
-**/
-EFI_STATUS
-EFIAPI
-UpdateVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- IN VOID *Data,
- IN UINTN DataSize,
- IN UINT32 Attributes OPTIONAL,
- IN VARIABLE_POINTER_TRACK *Variable
- )
-{
- EFI_STATUS Status;
- VARIABLE_HEADER *NextVariable;
- UINTN VarNameSize;
- UINTN VarNameOffset;
- UINTN VarDataOffset;
- UINTN VarSize;
- VARIABLE_GLOBAL *Global;
- UINTN NonVolatileVarableStoreSize;
-
- Global = &mVariableModuleGlobal->VariableGlobal[Physical];
-
- if (Variable->CurrPtr != NULL) {
- //
- // Update/Delete existing variable
- //
-
- if (EfiAtRuntime ()) {
- //
- // If EfiAtRuntime and the variable is Volatile and Runtime Access,
- // the volatile is ReadOnly, and SetVariable should be aborted and
- // return EFI_WRITE_PROTECTED.
- //
- if (Variable->Volatile) {
- Status = EFI_WRITE_PROTECTED;
- goto Done;
- }
- //
- // Only variable have NV attribute can be updated/deleted in Runtime
- //
- if ((Variable->CurrPtr->Attributes & EFI_VARIABLE_NON_VOLATILE) == 0) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
- }
-
- //
- // Setting a data variable with no access, or zero DataSize attributes
- // specified causes it to be deleted.
- //
- if (DataSize == 0 || (Attributes & (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)) == 0) {
- Variable->CurrPtr->State &= VAR_DELETED;
- UpdateVariableInfo (VariableName, VendorGuid, Variable->Volatile, FALSE, FALSE, TRUE, FALSE);
- Status = EFI_SUCCESS;
- goto Done;
- }
-
- //
- // If the variable is marked valid and the same data has been passed in
- // then return to the caller immediately.
- //
- if (Variable->CurrPtr->DataSize == DataSize &&
- CompareMem (Data, GetVariableDataPtr (Variable->CurrPtr), DataSize) == 0
- ) {
- Status = EFI_SUCCESS;
- goto Done;
- } else if (Variable->CurrPtr->State == VAR_ADDED) {
- //
- // Mark the old variable as in delete transition
- //
- Variable->CurrPtr->State &= VAR_IN_DELETED_TRANSITION;
- }
-
- } else {
- //
- // No found existing variable, Create a new variable
- //
-
- //
- // Make sure we are trying to create a new variable.
- // Setting a data variable with no access, or zero DataSize attributes means to delete it.
- //
- if (DataSize == 0 || (Attributes & (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)) == 0) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- //
- // Only variable have NV|RT attribute can be created in Runtime
- //
- if (EfiAtRuntime () &&
- (((Attributes & EFI_VARIABLE_RUNTIME_ACCESS) == 0) || ((Attributes & EFI_VARIABLE_NON_VOLATILE) == 0))) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
- }
-
- //
- // Function part - create a new variable and copy the data.
- // Both update a variable and create a variable will come here.
- //
-
- VarNameOffset = sizeof (VARIABLE_HEADER);
- VarNameSize = StrSize (VariableName);
- VarDataOffset = VarNameOffset + VarNameSize + GET_PAD_SIZE (VarNameSize);
- VarSize = VarDataOffset + DataSize + GET_PAD_SIZE (DataSize);
-
- if ((Attributes & EFI_VARIABLE_NON_VOLATILE) != 0) {
- NonVolatileVarableStoreSize = ((VARIABLE_STORE_HEADER *)(UINTN)(Global->NonVolatileVariableBase))->Size;
- if ((((Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) != 0)
- && ((HEADER_ALIGN (VarSize) + mVariableModuleGlobal->HwErrVariableTotalSize) > PcdGet32 (PcdHwErrStorageSize)))
- || (((Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == 0)
- && ((HEADER_ALIGN (VarSize) + mVariableModuleGlobal->CommonVariableTotalSize) > NonVolatileVarableStoreSize - sizeof (VARIABLE_STORE_HEADER) - PcdGet32 (PcdHwErrStorageSize)))) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Done;
- }
-
- NextVariable = (VARIABLE_HEADER *) (UINT8 *) (mVariableModuleGlobal->NonVolatileLastVariableOffset
- + (UINTN) Global->NonVolatileVariableBase);
- mVariableModuleGlobal->NonVolatileLastVariableOffset += HEADER_ALIGN (VarSize);
-
- if ((Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) != 0) {
- mVariableModuleGlobal->HwErrVariableTotalSize += HEADER_ALIGN (VarSize);
- } else {
- mVariableModuleGlobal->CommonVariableTotalSize += HEADER_ALIGN (VarSize);
- }
- } else {
- if ((UINT32) (HEADER_ALIGN (VarSize) + mVariableModuleGlobal->VolatileLastVariableOffset) >
- ((VARIABLE_STORE_HEADER *) ((UINTN) (Global->VolatileVariableBase)))->Size
- ) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Done;
- }
-
- NextVariable = (VARIABLE_HEADER *) (UINT8 *) (mVariableModuleGlobal->VolatileLastVariableOffset
- + (UINTN) Global->VolatileVariableBase);
- mVariableModuleGlobal->VolatileLastVariableOffset += HEADER_ALIGN (VarSize);
- }
-
- NextVariable->StartId = VARIABLE_DATA;
- NextVariable->Attributes = Attributes;
- NextVariable->State = VAR_ADDED;
- NextVariable->Reserved = 0;
-
- //
- // There will be pad bytes after Data, the NextVariable->NameSize and
- // NextVariable->NameSize should not include pad size so that variable
- // service can get actual size in GetVariable
- //
- NextVariable->NameSize = (UINT32)VarNameSize;
- NextVariable->DataSize = (UINT32)DataSize;
-
- CopyMem (&NextVariable->VendorGuid, VendorGuid, sizeof (EFI_GUID));
- CopyMem (
- (UINT8 *) ((UINTN) NextVariable + VarNameOffset),
- VariableName,
- VarNameSize
- );
- CopyMem (
- (UINT8 *) ((UINTN) NextVariable + VarDataOffset),
- Data,
- DataSize
- );
-
- //
- // Mark the old variable as deleted
- //
- if (Variable->CurrPtr != NULL) {
- Variable->CurrPtr->State &= VAR_DELETED;
- }
-
- UpdateVariableInfo (VariableName, VendorGuid, Variable->Volatile, FALSE, TRUE, FALSE, FALSE);
-
- Status = EFI_SUCCESS;
-
-Done:
- return Status;
-}
-
-/**
- Finds variable in storage blocks of volatile and non-volatile storage areas.
-
- This code finds variable in storage blocks of volatile and non-volatile storage areas.
- If VariableName is an empty string, then we just return the first
- qualified variable without comparing VariableName and VendorGuid.
- Otherwise, VariableName and VendorGuid are compared.
-
- @param VariableName Name of the variable to be found.
- @param VendorGuid Vendor GUID to be found.
- @param PtrTrack VARIABLE_POINTER_TRACK structure for output,
- including the range searched and the target position.
- @param Global Pointer to VARIABLE_GLOBAL structure, including
- base of volatile variable storage area, base of
- NV variable storage area, and a lock.
-
- @retval EFI_INVALID_PARAMETER If VariableName is not an empty string, while
- VendorGuid is NULL.
- @retval EFI_SUCCESS Variable successfully found.
- @retval EFI_NOT_FOUND Variable not found.
-
-**/
-EFI_STATUS
-FindVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- OUT VARIABLE_POINTER_TRACK *PtrTrack,
- IN VARIABLE_GLOBAL *Global
- )
-{
- VARIABLE_HEADER *Variable[2];
- VARIABLE_STORE_HEADER *VariableStoreHeader[2];
- UINTN Index;
-
- //
- // 0: Non-Volatile, 1: Volatile
- //
- VariableStoreHeader[0] = (VARIABLE_STORE_HEADER *) ((UINTN) Global->NonVolatileVariableBase);
- VariableStoreHeader[1] = (VARIABLE_STORE_HEADER *) ((UINTN) Global->VolatileVariableBase);
-
- //
- // Start Pointers for the variable.
- // Actual Data Pointer where data can be written.
- //
- Variable[0] = (VARIABLE_HEADER *) HEADER_ALIGN (VariableStoreHeader[0] + 1);
- Variable[1] = (VARIABLE_HEADER *) HEADER_ALIGN (VariableStoreHeader[1] + 1);
-
- if (VariableName[0] != 0 && VendorGuid == NULL) {
- return EFI_INVALID_PARAMETER;
- }
- //
- // Find the variable by walk through non-volatile and volatile variable store
- //
- for (Index = 0; Index < 2; Index++) {
- PtrTrack->StartPtr = (VARIABLE_HEADER *) HEADER_ALIGN (VariableStoreHeader[Index] + 1);
- PtrTrack->EndPtr = GetEndPointer (VariableStoreHeader[Index]);
-
- while ((Variable[Index] < GetEndPointer (VariableStoreHeader[Index])) && (Variable[Index] != NULL)) {
- if (Variable[Index]->StartId == VARIABLE_DATA && Variable[Index]->State == VAR_ADDED) {
- if (!(EfiAtRuntime () && ((Variable[Index]->Attributes & EFI_VARIABLE_RUNTIME_ACCESS) == 0))) {
- if (VariableName[0] == 0) {
- PtrTrack->CurrPtr = Variable[Index];
- PtrTrack->Volatile = (BOOLEAN) Index;
- return EFI_SUCCESS;
- } else {
- if (CompareGuid (VendorGuid, &Variable[Index]->VendorGuid)) {
- if (CompareMem (VariableName, GET_VARIABLE_NAME_PTR (Variable[Index]), Variable[Index]->NameSize) == 0) {
- PtrTrack->CurrPtr = Variable[Index];
- PtrTrack->Volatile = (BOOLEAN) Index;
- return EFI_SUCCESS;
- }
- }
- }
- }
- }
-
- Variable[Index] = GetNextVariablePtr (Variable[Index]);
- }
- }
- PtrTrack->CurrPtr = NULL;
- return EFI_NOT_FOUND;
-}
-
-/**
- This code finds variable in storage blocks (Volatile or Non-Volatile).
-
- @param VariableName A Null-terminated Unicode string that is the name of
- the vendor's variable.
- @param VendorGuid A unique identifier for the vendor.
- @param Attributes If not NULL, a pointer to the memory location to return the
- attributes bitmask for the variable.
- @param DataSize Size of Data found. If size is less than the
- data, this value contains the required size.
- @param Data On input, the size in bytes of the return Data buffer.
- On output, the size of data returned in Data.
- @param Global Pointer to VARIABLE_GLOBAL structure
-
- @retval EFI_SUCCESS The function completed successfully.
- @retval EFI_NOT_FOUND The variable was not found.
- @retval EFI_BUFFER_TOO_SMALL DataSize is too small for the result. DataSize has
- been updated with the size needed to complete the request.
- @retval EFI_INVALID_PARAMETER VariableName or VendorGuid or DataSize is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-EmuGetVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- OUT UINT32 *Attributes OPTIONAL,
- IN OUT UINTN *DataSize,
- OUT VOID *Data,
- IN VARIABLE_GLOBAL *Global
- )
-{
- VARIABLE_POINTER_TRACK Variable;
- UINTN VarDataSize;
- EFI_STATUS Status;
- UINT8 *VariableDataPtr;
-
- if (VariableName == NULL || VendorGuid == NULL || DataSize == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (VariableName[0] == 0) {
- return EFI_NOT_FOUND;
- }
-
- AcquireLockOnlyAtBootTime(&Global->VariableServicesLock);
-
- //
- // Find existing variable
- //
- Status = FindVariable (VariableName, VendorGuid, &Variable, Global);
-
- if (Variable.CurrPtr == NULL || EFI_ERROR (Status)) {
- goto Done;
- }
- //
- // Get data size
- //
- VarDataSize = Variable.CurrPtr->DataSize;
- if (*DataSize >= VarDataSize) {
- if (Data == NULL) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
- VariableDataPtr = GetVariableDataPtr (Variable.CurrPtr);
- ASSERT (VariableDataPtr != NULL);
-
- CopyMem (Data, VariableDataPtr, VarDataSize);
- if (Attributes != NULL) {
- *Attributes = Variable.CurrPtr->Attributes;
- }
-
- *DataSize = VarDataSize;
- UpdateVariableInfo (VariableName, VendorGuid, Variable.Volatile, TRUE, FALSE, FALSE, FALSE);
- Status = EFI_SUCCESS;
- goto Done;
- } else {
- *DataSize = VarDataSize;
- Status = EFI_BUFFER_TOO_SMALL;
- goto Done;
- }
-
-Done:
- ReleaseLockOnlyAtBootTime (&Global->VariableServicesLock);
- return Status;
-}
-
-/**
-
- This code Finds the Next available variable.
-
- @param VariableNameSize The size of the VariableName buffer. The size must be large enough to fit input
- string supplied in VariableName buffer.
- @param VariableName On input, supplies the last VariableName that was returned by GetNextVariableName().
- On output, returns the Null-terminated Unicode string of the current variable.
- @param VendorGuid On input, supplies the last VendorGuid that was returned by GetNextVariableName().
- On output, returns the VendorGuid of the current variable.
- @param Global Pointer to VARIABLE_GLOBAL structure.
-
- @retval EFI_SUCCESS The function completed successfully.
- @retval EFI_NOT_FOUND The next variable was not found.
- @retval EFI_BUFFER_TOO_SMALL The VariableNameSize is too small for the result.
- VariableNameSize has been updated with the size needed to complete the request.
- @retval EFI_INVALID_PARAMETER VariableNameSize or VariableName or VendorGuid is NULL.
- @retval EFI_INVALID_PARAMETER The input values of VariableName and VendorGuid are not a name and
- GUID of an existing variable.
- @retval EFI_INVALID_PARAMETER Null-terminator is not found in the first VariableNameSize bytes of
- the input VariableName buffer.
-
-**/
-EFI_STATUS
-EFIAPI
-EmuGetNextVariableName (
- IN OUT UINTN *VariableNameSize,
- IN OUT CHAR16 *VariableName,
- IN OUT EFI_GUID *VendorGuid,
- IN VARIABLE_GLOBAL *Global
- )
-{
- VARIABLE_POINTER_TRACK Variable;
- UINTN VarNameSize;
- EFI_STATUS Status;
- UINTN MaxLen;
-
- if (VariableNameSize == NULL || VariableName == NULL || VendorGuid == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Calculate the possible maximum length of name string, including the Null terminator.
- //
- MaxLen = *VariableNameSize / sizeof (CHAR16);
- if ((MaxLen == 0) || (StrnLenS (VariableName, MaxLen) == MaxLen)) {
- //
- // Null-terminator is not found in the first VariableNameSize bytes of the input VariableName buffer,
- // follow spec to return EFI_INVALID_PARAMETER.
- //
- return EFI_INVALID_PARAMETER;
- }
-
- AcquireLockOnlyAtBootTime(&Global->VariableServicesLock);
-
- Status = FindVariable (VariableName, VendorGuid, &Variable, Global);
-
- if (Variable.CurrPtr == NULL || EFI_ERROR (Status)) {
- //
- // For VariableName is an empty string, FindVariable() will try to find and return
- // the first qualified variable, and if FindVariable() returns error (EFI_NOT_FOUND)
- // as no any variable is found, still go to return the error (EFI_NOT_FOUND).
- //
- if (VariableName[0] != 0) {
- //
- // For VariableName is not an empty string, and FindVariable() returns error as
- // VariableName and VendorGuid are not a name and GUID of an existing variable,
- // there is no way to get next variable, follow spec to return EFI_INVALID_PARAMETER.
- //
- Status = EFI_INVALID_PARAMETER;
- }
- goto Done;
- }
-
- while (TRUE) {
- if (VariableName[0] != 0) {
- //
- // If variable name is not NULL, get next variable
- //
- Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr);
- }
- //
- // If both volatile and non-volatile variable store are parsed,
- // return not found
- //
- if (Variable.CurrPtr >= Variable.EndPtr || Variable.CurrPtr == NULL) {
- Variable.Volatile = (BOOLEAN) (Variable.Volatile ^ ((BOOLEAN) 0x1));
- if (Variable.Volatile) {
- Variable.StartPtr = (VARIABLE_HEADER *) HEADER_ALIGN ((UINTN) (Global->VolatileVariableBase + sizeof (VARIABLE_STORE_HEADER)));
- Variable.EndPtr = (VARIABLE_HEADER *) GetEndPointer ((VARIABLE_STORE_HEADER *) ((UINTN) Global->VolatileVariableBase));
- } else {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- Variable.CurrPtr = Variable.StartPtr;
- if (Variable.CurrPtr->StartId != VARIABLE_DATA) {
- continue;
- }
- }
- //
- // Variable is found
- //
- if (Variable.CurrPtr->StartId == VARIABLE_DATA && Variable.CurrPtr->State == VAR_ADDED) {
- if (!(EfiAtRuntime () && ((Variable.CurrPtr->Attributes & EFI_VARIABLE_RUNTIME_ACCESS) == 0))) {
- VarNameSize = Variable.CurrPtr->NameSize;
- if (VarNameSize <= *VariableNameSize) {
- CopyMem (
- VariableName,
- GET_VARIABLE_NAME_PTR (Variable.CurrPtr),
- VarNameSize
- );
- CopyMem (
- VendorGuid,
- &Variable.CurrPtr->VendorGuid,
- sizeof (EFI_GUID)
- );
- Status = EFI_SUCCESS;
- } else {
- Status = EFI_BUFFER_TOO_SMALL;
- }
-
- *VariableNameSize = VarNameSize;
- goto Done;
- }
- }
- }
-
-Done:
- ReleaseLockOnlyAtBootTime (&Global->VariableServicesLock);
- return Status;
-
-}
-
-/**
-
- This code sets variable in storage blocks (Volatile or Non-Volatile).
-
- @param VariableName A Null-terminated Unicode string that is the name of the vendor's
- variable. Each VariableName is unique for each
- VendorGuid. VariableName must contain 1 or more
- Unicode characters. If VariableName is an empty Unicode
- string, then EFI_INVALID_PARAMETER is returned.
- @param VendorGuid A unique identifier for the vendor
- @param Attributes Attributes bitmask to set for the variable
- @param DataSize The size in bytes of the Data buffer. A size of zero causes the
- variable to be deleted.
- @param Data The contents for the variable
- @param Global Pointer to VARIABLE_GLOBAL structure
- @param VolatileOffset The offset of last volatile variable
- @param NonVolatileOffset The offset of last non-volatile variable
-
- @retval EFI_SUCCESS The firmware has successfully stored the variable and its data as
- defined by the Attributes.
- @retval EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied, or the
- DataSize exceeds the maximum allowed, or VariableName is an empty
- Unicode string, or VendorGuid is NULL.
- @retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the variable and its data.
- @retval EFI_DEVICE_ERROR The variable could not be saved due to a hardware failure.
- @retval EFI_WRITE_PROTECTED The variable in question is read-only or cannot be deleted.
- @retval EFI_NOT_FOUND The variable trying to be updated or deleted was not found.
-
-**/
-EFI_STATUS
-EFIAPI
-EmuSetVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- IN UINT32 Attributes,
- IN UINTN DataSize,
- IN VOID *Data,
- IN VARIABLE_GLOBAL *Global,
- IN UINTN *VolatileOffset,
- IN UINTN *NonVolatileOffset
- )
-{
- VARIABLE_POINTER_TRACK Variable;
- EFI_STATUS Status;
-
- //
- // Check input parameters
- //
- if (VariableName == NULL || VariableName[0] == 0 || VendorGuid == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (DataSize != 0 && Data == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Not support authenticated variable write yet.
- //
- if ((Attributes & EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS) != 0) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Make sure if runtime bit is set, boot service bit is set also
- //
- if ((Attributes & (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)) == EFI_VARIABLE_RUNTIME_ACCESS) {
- return EFI_INVALID_PARAMETER;
- }
-
-
- if ((UINTN)(~0) - DataSize < StrSize(VariableName)){
- //
- // Prevent whole variable size overflow
- //
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // The size of the VariableName, including the Unicode Null in bytes plus
- // the DataSize is limited to maximum size of PcdGet32 (PcdMaxHardwareErrorVariableSize)
- // bytes for HwErrRec, and PcdGet32 (PcdMaxVariableSize) bytes for the others.
- //
- if ((Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == EFI_VARIABLE_HARDWARE_ERROR_RECORD) {
- if (StrSize (VariableName) + DataSize > PcdGet32 (PcdMaxHardwareErrorVariableSize) - sizeof (VARIABLE_HEADER)) {
- return EFI_INVALID_PARAMETER;
- }
- //
- // According to UEFI spec, HARDWARE_ERROR_RECORD variable name convention should be L"HwErrRecXXXX"
- //
- if (StrnCmp(VariableName, L"HwErrRec", StrLen(L"HwErrRec")) != 0) {
- return EFI_INVALID_PARAMETER;
- }
- } else {
- //
- // The size of the VariableName, including the Unicode Null in bytes plus
- // the DataSize is limited to maximum size of PcdGet32 (PcdMaxVariableSize) bytes.
- //
- if (StrSize (VariableName) + DataSize > PcdGet32 (PcdMaxVariableSize) - sizeof (VARIABLE_HEADER)) {
- return EFI_INVALID_PARAMETER;
- }
- }
-
- AcquireLockOnlyAtBootTime(&Global->VariableServicesLock);
-
- //
- // Check whether the input variable is already existed
- //
-
- Status = FindVariable (VariableName, VendorGuid, &Variable, Global);
-
- //
- // Hook the operation of setting PlatformLangCodes/PlatformLang and LangCodes/Lang
- //
- AutoUpdateLangVariable (VariableName, Data, DataSize);
-
- Status = UpdateVariable (VariableName, VendorGuid, Data, DataSize, Attributes, &Variable);
-
- ReleaseLockOnlyAtBootTime (&Global->VariableServicesLock);
- return Status;
-}
-
-/**
-
- This code returns information about the EFI variables.
-
- @param Attributes Attributes bitmask to specify the type of variables
- on which to return information.
- @param MaximumVariableStorageSize On output the maximum size of the storage space available for
- the EFI variables associated with the attributes specified.
- @param RemainingVariableStorageSize Returns the remaining size of the storage space available for EFI
- variables associated with the attributes specified.
- @param MaximumVariableSize Returns the maximum size of an individual EFI variable
- associated with the attributes specified.
- @param Global Pointer to VARIABLE_GLOBAL structure.
-
- @retval EFI_SUCCESS Valid answer returned.
- @retval EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied
- @retval EFI_UNSUPPORTED The attribute is not supported on this platform, and the
- MaximumVariableStorageSize, RemainingVariableStorageSize,
- MaximumVariableSize are undefined.
-
-**/
-EFI_STATUS
-EFIAPI
-EmuQueryVariableInfo (
- IN UINT32 Attributes,
- OUT UINT64 *MaximumVariableStorageSize,
- OUT UINT64 *RemainingVariableStorageSize,
- OUT UINT64 *MaximumVariableSize,
- IN VARIABLE_GLOBAL *Global
- )
-{
- VARIABLE_HEADER *Variable;
- VARIABLE_HEADER *NextVariable;
- UINT64 VariableSize;
- VARIABLE_STORE_HEADER *VariableStoreHeader;
- UINT64 CommonVariableTotalSize;
- UINT64 HwErrVariableTotalSize;
-
- CommonVariableTotalSize = 0;
- HwErrVariableTotalSize = 0;
-
- if(MaximumVariableStorageSize == NULL || RemainingVariableStorageSize == NULL || MaximumVariableSize == NULL || Attributes == 0) {
- return EFI_INVALID_PARAMETER;
- }
-
- if((Attributes & (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) == 0) {
- //
- // Make sure the Attributes combination is supported by the platform.
- //
- return EFI_UNSUPPORTED;
- } else if ((Attributes & (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)) == EFI_VARIABLE_RUNTIME_ACCESS) {
- //
- // Make sure if runtime bit is set, boot service bit is set also.
- //
- return EFI_INVALID_PARAMETER;
- } else if (EfiAtRuntime () && ((Attributes & EFI_VARIABLE_RUNTIME_ACCESS) == 0)) {
- //
- // Make sure RT Attribute is set if we are in Runtime phase.
- //
- return EFI_INVALID_PARAMETER;
- } else if ((Attributes & (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) == EFI_VARIABLE_HARDWARE_ERROR_RECORD) {
- //
- // Make sure Hw Attribute is set with NV.
- //
- return EFI_INVALID_PARAMETER;
- } else if ((Attributes & EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS) != 0) {
- //
- // Not support authentiated variable write yet.
- //
- return EFI_UNSUPPORTED;
- }
-
- AcquireLockOnlyAtBootTime(&Global->VariableServicesLock);
-
- if((Attributes & EFI_VARIABLE_NON_VOLATILE) == 0) {
- //
- // Query is Volatile related.
- //
- VariableStoreHeader = (VARIABLE_STORE_HEADER *) ((UINTN) Global->VolatileVariableBase);
- } else {
- //
- // Query is Non-Volatile related.
- //
- VariableStoreHeader = (VARIABLE_STORE_HEADER *) ((UINTN) Global->NonVolatileVariableBase);
- }
-
- //
- // Now let's fill *MaximumVariableStorageSize *RemainingVariableStorageSize
- // with the storage size (excluding the storage header size)
- //
- *MaximumVariableStorageSize = VariableStoreHeader->Size - sizeof (VARIABLE_STORE_HEADER);
-
- //
- // Harware error record variable needs larger size.
- //
- if ((Attributes & (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) == (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) {
- *MaximumVariableStorageSize = PcdGet32 (PcdHwErrStorageSize);
- *MaximumVariableSize = PcdGet32 (PcdMaxHardwareErrorVariableSize) - sizeof (VARIABLE_HEADER);
- } else {
- if ((Attributes & EFI_VARIABLE_NON_VOLATILE) != 0) {
- ASSERT (PcdGet32 (PcdHwErrStorageSize) < VariableStoreHeader->Size);
- *MaximumVariableStorageSize = VariableStoreHeader->Size - sizeof (VARIABLE_STORE_HEADER) - PcdGet32 (PcdHwErrStorageSize);
- }
-
- //
- // Let *MaximumVariableSize be PcdGet32 (PcdMaxVariableSize) with the exception of the variable header size.
- //
- *MaximumVariableSize = PcdGet32 (PcdMaxVariableSize) - sizeof (VARIABLE_HEADER);
- }
-
- //
- // Point to the starting address of the variables.
- //
- Variable = (VARIABLE_HEADER *) HEADER_ALIGN (VariableStoreHeader + 1);
-
- //
- // Now walk through the related variable store.
- //
- while (Variable < GetEndPointer (VariableStoreHeader)) {
- NextVariable = GetNextVariablePtr(Variable);
- if (NextVariable == NULL) {
- break;
- }
- VariableSize = (UINT64) (UINTN) NextVariable - (UINT64) (UINTN) Variable;
-
- if ((Variable->Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == EFI_VARIABLE_HARDWARE_ERROR_RECORD) {
- HwErrVariableTotalSize += VariableSize;
- } else {
- CommonVariableTotalSize += VariableSize;
- }
-
- //
- // Go to the next one.
- //
- Variable = NextVariable;
- }
-
- if ((Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == EFI_VARIABLE_HARDWARE_ERROR_RECORD){
- *RemainingVariableStorageSize = *MaximumVariableStorageSize - HwErrVariableTotalSize;
- } else {
- *RemainingVariableStorageSize = *MaximumVariableStorageSize - CommonVariableTotalSize;
- }
-
- if (*RemainingVariableStorageSize < sizeof (VARIABLE_HEADER)) {
- *MaximumVariableSize = 0;
- } else if ((*RemainingVariableStorageSize - sizeof (VARIABLE_HEADER)) < *MaximumVariableSize) {
- *MaximumVariableSize = *RemainingVariableStorageSize - sizeof (VARIABLE_HEADER);
- }
-
- ReleaseLockOnlyAtBootTime (&Global->VariableServicesLock);
- return EFI_SUCCESS;
-}
-
-/**
- Initializes variable store area.
-
- This function allocates memory space for variable store area and initializes its attributes.
-
- @param VolatileStore Indicates if the variable store is volatile.
-
-**/
-EFI_STATUS
-InitializeVariableStore (
- IN BOOLEAN VolatileStore
- )
-{
- EFI_STATUS Status;
- VARIABLE_STORE_HEADER *VariableStore;
- BOOLEAN FullyInitializeStore;
- EFI_PHYSICAL_ADDRESS *VariableBase;
- UINTN *LastVariableOffset;
- VARIABLE_STORE_HEADER *VariableStoreHeader;
- VARIABLE_HEADER *Variable;
- VOID *VariableData;
- EFI_HOB_GUID_TYPE *GuidHob;
-
- FullyInitializeStore = TRUE;
-
- if (VolatileStore) {
- VariableBase = &mVariableModuleGlobal->VariableGlobal[Physical].VolatileVariableBase;
- LastVariableOffset = &mVariableModuleGlobal->VolatileLastVariableOffset;
- } else {
- VariableBase = &mVariableModuleGlobal->VariableGlobal[Physical].NonVolatileVariableBase;
- LastVariableOffset = &mVariableModuleGlobal->NonVolatileLastVariableOffset;
- }
-
- //
- // Note that in EdkII variable driver implementation, Hardware Error Record type variable
- // is stored with common variable in the same NV region. So the platform integrator should
- // ensure that the value of PcdHwErrStorageSize is less than or equal to the value of
- // PcdVariableStoreSize.
- //
- ASSERT (PcdGet32 (PcdHwErrStorageSize) <= PcdGet32 (PcdVariableStoreSize));
-
- //
- // Allocate memory for variable store.
- //
- if (VolatileStore || (PcdGet64 (PcdEmuVariableNvStoreReserved) == 0)) {
- VariableStore = (VARIABLE_STORE_HEADER *) AllocateRuntimePool (PcdGet32 (PcdVariableStoreSize));
- } else {
- //
- // A memory location has been reserved for the NV variable store. Certain
- // platforms may be able to preserve a memory range across system resets,
- // thereby providing better NV variable emulation.
- //
- VariableStore =
- (VARIABLE_STORE_HEADER *)(VOID*)(UINTN)
- PcdGet64 (PcdEmuVariableNvStoreReserved);
- if (
- (VariableStore->Size == PcdGet32 (PcdVariableStoreSize)) &&
- (VariableStore->Format == VARIABLE_STORE_FORMATTED) &&
- (VariableStore->State == VARIABLE_STORE_HEALTHY)
- ) {
- DEBUG((
- EFI_D_INFO,
- "Variable Store reserved at %p appears to be valid\n",
- VariableStore
- ));
- FullyInitializeStore = FALSE;
- }
- }
-
- if (NULL == VariableStore) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- if (FullyInitializeStore) {
- SetMem (VariableStore, PcdGet32 (PcdVariableStoreSize), 0xff);
- }
-
- //
- // Variable Specific Data
- //
- *VariableBase = (EFI_PHYSICAL_ADDRESS) (UINTN) VariableStore;
- InitializeLocationForLastVariableOffset (VariableStore, LastVariableOffset);
-
- CopyGuid (&VariableStore->Signature, &gEfiVariableGuid);
- VariableStore->Size = PcdGet32 (PcdVariableStoreSize);
- VariableStore->Format = VARIABLE_STORE_FORMATTED;
- VariableStore->State = VARIABLE_STORE_HEALTHY;
- VariableStore->Reserved = 0;
- VariableStore->Reserved1 = 0;
-
- if (!VolatileStore) {
- //
- // Get HOB variable store.
- //
- GuidHob = GetFirstGuidHob (&gEfiVariableGuid);
- if (GuidHob != NULL) {
- VariableStoreHeader = (VARIABLE_STORE_HEADER *) GET_GUID_HOB_DATA (GuidHob);
- if (CompareGuid (&VariableStoreHeader->Signature, &gEfiVariableGuid) &&
- (VariableStoreHeader->Format == VARIABLE_STORE_FORMATTED) &&
- (VariableStoreHeader->State == VARIABLE_STORE_HEALTHY)
- ) {
- DEBUG ((EFI_D_INFO, "HOB Variable Store appears to be valid.\n"));
- //
- // Flush the HOB variable to Emulation Variable storage.
- //
- for ( Variable = (VARIABLE_HEADER *) HEADER_ALIGN (VariableStoreHeader + 1)
- ; (Variable < GetEndPointer (VariableStoreHeader) && (Variable != NULL))
- ; Variable = GetNextVariablePtr (Variable)
- ) {
- ASSERT (Variable->State == VAR_ADDED);
- ASSERT ((Variable->Attributes & EFI_VARIABLE_NON_VOLATILE) != 0);
- VariableData = GetVariableDataPtr (Variable);
- Status = EmuSetVariable (
- GET_VARIABLE_NAME_PTR (Variable),
- &Variable->VendorGuid,
- Variable->Attributes,
- Variable->DataSize,
- VariableData,
- &mVariableModuleGlobal->VariableGlobal[Physical],
- &mVariableModuleGlobal->VolatileLastVariableOffset,
- &mVariableModuleGlobal->NonVolatileLastVariableOffset
- );
- ASSERT_EFI_ERROR (Status);
- }
- }
- }
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Initializes variable store area for non-volatile and volatile variable.
-
- This function allocates and initializes memory space for global context of ESAL
- variable service and variable store area for non-volatile and volatile variable.
-
- @param ImageHandle The Image handle of this driver.
- @param SystemTable The pointer of EFI_SYSTEM_TABLE.
-
- @retval EFI_SUCCESS Function successfully executed.
- @retval EFI_OUT_OF_RESOURCES Fail to allocate enough memory resource.
-
-**/
-EFI_STATUS
-EFIAPI
-VariableCommonInitialize (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
-
- //
- // Allocate memory for mVariableModuleGlobal
- //
- mVariableModuleGlobal = (ESAL_VARIABLE_GLOBAL *) AllocateRuntimeZeroPool (
- sizeof (ESAL_VARIABLE_GLOBAL)
- );
- if (NULL == mVariableModuleGlobal) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- EfiInitializeLock(&mVariableModuleGlobal->VariableGlobal[Physical].VariableServicesLock, TPL_NOTIFY);
-
- //
- // Intialize volatile variable store
- //
- Status = InitializeVariableStore (TRUE);
- if (EFI_ERROR (Status)) {
- FreePool(mVariableModuleGlobal);
- return Status;
- }
- //
- // Intialize non volatile variable store
- //
- Status = InitializeVariableStore (FALSE);
-
- return Status;
-}
diff --git a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf b/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf deleted file mode 100644 index 12d52dd130..0000000000 --- a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf +++ /dev/null @@ -1,88 +0,0 @@ -## @file
-# Emulation Variable for EFI_RUNTIME_SERVICES.
-#
-# This module installs variable arch protocol and variable write arch protocol to provide
-# four EFI_RUNTIME_SERVICES: SetVariable, GetVariable, GetNextVariableName and QueryVariableInfo.
-#
-# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
-#
-# This program and the accompanying materials
-# are licensed and made available under the terms and conditions of the BSD License
-# which accompanies this distribution. The full text of the license may be found at
-# http://opensource.org/licenses/bsd-license.php
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#
-#
-##
-
-[Defines]
- INF_VERSION = 0x00010005
- BASE_NAME = EmuVariableRuntimeDxe
- MODULE_UNI_FILE = EmuVariableRuntimeDxe.uni
- FILE_GUID = 02B01AD5-7E59-43e8-A6D8-238180613A5A
- MODULE_TYPE = DXE_RUNTIME_DRIVER
- VERSION_STRING = 1.0
- ENTRY_POINT = VariableServiceInitialize
-
-#
-# The following information is for reference only and not required by the build tools.
-#
-# VALID_ARCHITECTURES = IA32 X64 EBC
-#
-
-[Sources]
- InitVariable.c
- EmuVariable.c
- Variable.h
-
-
-[Packages]
- MdePkg/MdePkg.dec
- MdeModulePkg/MdeModulePkg.dec
-
-
-[LibraryClasses]
- BaseLib
- UefiLib
- UefiBootServicesTableLib
- UefiDriverEntryPoint
- UefiRuntimeLib
- DebugLib
- MemoryAllocationLib
- BaseMemoryLib
- HobLib
- PcdLib
-
-[Protocols]
- gEfiVariableArchProtocolGuid ## PRODUCES
- gEfiVariableWriteArchProtocolGuid ## PRODUCES
-
-[Guids]
- gEfiEventVirtualAddressChangeGuid ## CONSUMES ## Event
- ## SOMETIMES_CONSUMES ## Variable:L"PlatformLang"
- ## SOMETIMES_PRODUCES ## Variable:L"PlatformLang"
- ## SOMETIMES_CONSUMES ## Variable:L"Lang"
- ## SOMETIMES_PRODUCES ## Variable:L"Lang"
- gEfiGlobalVariableGuid
- ## PRODUCES ## GUID # Signature of Variable store header
- ## CONSUMES ## GUID # Signature of Variable store header
- ## SOMETIMES_CONSUMES ## HOB
- ## SOMETIMES_PRODUCES ## SystemTable
- gEfiVariableGuid
-
-[Pcd]
- gEfiMdeModulePkgTokenSpaceGuid.PcdEmuVariableNvStoreReserved ## CONSUMES
- gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVariableSize ## CONSUMES
- gEfiMdeModulePkgTokenSpaceGuid.PcdMaxHardwareErrorVariableSize ## CONSUMES
- gEfiMdeModulePkgTokenSpaceGuid.PcdVariableStoreSize ## CONSUMES
- gEfiMdeModulePkgTokenSpaceGuid.PcdHwErrStorageSize ## CONSUMES
-
-[FeaturePcd]
- gEfiMdeModulePkgTokenSpaceGuid.PcdVariableCollectStatistics ## CONSUMES # statistic the information of variable.
-
-[Depex]
- TRUE
-
-[UserExtensions.TianoCore."ExtraFiles"]
- EmuVariableRuntimeDxeExtra.uni
diff --git a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.uni b/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.uni deleted file mode 100644 index 6ad6018121..0000000000 --- a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.uni +++ /dev/null @@ -1,22 +0,0 @@ -// /** @file
-// Emulation Variable for EFI_RUNTIME_SERVICES.
-//
-// This module installs variable arch protocol and variable write arch protocol to provide
-// four EFI_RUNTIME_SERVICES: SetVariable, GetVariable, GetNextVariableName and QueryVariableInfo.
-//
-// Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
-//
-// This program and the accompanying materials
-// are licensed and made available under the terms and conditions of the BSD License
-// which accompanies this distribution. The full text of the license may be found at
-// http://opensource.org/licenses/bsd-license.php
-// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-//
-// **/
-
-
-#string STR_MODULE_ABSTRACT #language en-US "Emulation Variable for EFI_RUNTIME_SERVICES"
-
-#string STR_MODULE_DESCRIPTION #language en-US "This module installs variable arch protocol and variable write arch protocol to provide four EFI_RUNTIME_SERVICES: SetVariable, GetVariable, GetNextVariableName and QueryVariableInfo."
-
diff --git a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxeExtra.uni b/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxeExtra.uni deleted file mode 100644 index a500037373..0000000000 --- a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxeExtra.uni +++ /dev/null @@ -1,19 +0,0 @@ -// /** @file
-// EmuVariableRuntimeDxe Localized Strings and Content
-//
-// Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.<BR>
-//
-// This program and the accompanying materials
-// are licensed and made available under the terms and conditions of the BSD License
-// which accompanies this distribution. The full text of the license may be found at
-// http://opensource.org/licenses/bsd-license.php
-// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-//
-// **/
-
-#string STR_PROPERTIES_MODULE_NAME
-#language en-US
-"Emulation Variable DXE Driver"
-
-
diff --git a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/InitVariable.c b/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/InitVariable.c deleted file mode 100644 index dac0464253..0000000000 --- a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/InitVariable.c +++ /dev/null @@ -1,259 +0,0 @@ -/** @file
-
- Implment all four UEFI runtime variable services and
- install variable architeture protocol.
-
-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
-This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "Variable.h"
-
-EFI_EVENT mVirtualAddressChangeEvent = NULL;
-
-/**
-
- This code finds variable in storage blocks (Volatile or Non-Volatile).
-
- @param VariableName Name of Variable to be found.
- @param VendorGuid Variable vendor GUID.
- @param Attributes Attribute value of the variable found.
- @param DataSize Size of Data found. If size is less than the
- data, this value contains the required size.
- @param Data The buffer to return the contents of the variable. May be NULL
- with a zero DataSize in order to determine the size buffer needed.
-
- @return EFI_INVALID_PARAMETER Invalid parameter
- @return EFI_SUCCESS Find the specified variable
- @return EFI_NOT_FOUND Not found
- @return EFI_BUFFER_TO_SMALL DataSize is too small for the result
-
-**/
-EFI_STATUS
-EFIAPI
-RuntimeServiceGetVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- OUT UINT32 *Attributes OPTIONAL,
- IN OUT UINTN *DataSize,
- OUT VOID *Data OPTIONAL
- )
-{
- return EmuGetVariable (
- VariableName,
- VendorGuid,
- Attributes OPTIONAL,
- DataSize,
- Data,
- &mVariableModuleGlobal->VariableGlobal[Physical]
- );
-}
-
-/**
-
- This code Finds the Next available variable.
-
- @param VariableNameSize The size of the VariableName buffer. The size must be large enough to fit input
- string supplied in VariableName buffer.
- @param VariableName On input, supplies the last VariableName that was returned by GetNextVariableName().
- On output, returns the Null-terminated Unicode string of the current variable.
- @param VendorGuid On input, supplies the last VendorGuid that was returned by GetNextVariableName().
- On output, returns the VendorGuid of the current variable.
-
- @retval EFI_SUCCESS The function completed successfully.
- @retval EFI_NOT_FOUND The next variable was not found.
- @retval EFI_BUFFER_TOO_SMALL The VariableNameSize is too small for the result.
- VariableNameSize has been updated with the size needed to complete the request.
- @retval EFI_INVALID_PARAMETER VariableNameSize or VariableName or VendorGuid is NULL.
- @retval EFI_INVALID_PARAMETER The input values of VariableName and VendorGuid are not a name and
- GUID of an existing variable.
- @retval EFI_INVALID_PARAMETER Null-terminator is not found in the first VariableNameSize bytes of
- the input VariableName buffer.
-
-**/
-EFI_STATUS
-EFIAPI
-RuntimeServiceGetNextVariableName (
- IN OUT UINTN *VariableNameSize,
- IN OUT CHAR16 *VariableName,
- IN OUT EFI_GUID *VendorGuid
- )
-{
- return EmuGetNextVariableName (
- VariableNameSize,
- VariableName,
- VendorGuid,
- &mVariableModuleGlobal->VariableGlobal[Physical]
- );
-}
-
-/**
-
- This code sets variable in storage blocks (Volatile or Non-Volatile).
-
- @param VariableName Name of Variable to be found
- @param VendorGuid Variable vendor GUID
- @param Attributes Attribute value of the variable found
- @param DataSize Size of Data found. If size is less than the
- data, this value contains the required size.
- @param Data Data pointer
-
- @return EFI_INVALID_PARAMETER Invalid parameter
- @return EFI_SUCCESS Set successfully
- @return EFI_OUT_OF_RESOURCES Resource not enough to set variable
- @return EFI_NOT_FOUND Not found
- @return EFI_WRITE_PROTECTED Variable is read-only
-
-**/
-EFI_STATUS
-EFIAPI
-RuntimeServiceSetVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- IN UINT32 Attributes,
- IN UINTN DataSize,
- IN VOID *Data
- )
-{
- return EmuSetVariable (
- VariableName,
- VendorGuid,
- Attributes,
- DataSize,
- Data,
- &mVariableModuleGlobal->VariableGlobal[Physical],
- &mVariableModuleGlobal->VolatileLastVariableOffset,
- &mVariableModuleGlobal->NonVolatileLastVariableOffset
- );
-}
-
-/**
-
- This code returns information about the EFI variables.
-
- @param Attributes Attributes bitmask to specify the type of variables
- on which to return information.
- @param MaximumVariableStorageSize Pointer to the maximum size of the storage space available
- for the EFI variables associated with the attributes specified.
- @param RemainingVariableStorageSize Pointer to the remaining size of the storage space available
- for EFI variables associated with the attributes specified.
- @param MaximumVariableSize Pointer to the maximum size of an individual EFI variables
- associated with the attributes specified.
-
- @return EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied.
- @return EFI_SUCCESS Query successfully.
- @return EFI_UNSUPPORTED The attribute is not supported on this platform.
-
-**/
-EFI_STATUS
-EFIAPI
-RuntimeServiceQueryVariableInfo (
- IN UINT32 Attributes,
- OUT UINT64 *MaximumVariableStorageSize,
- OUT UINT64 *RemainingVariableStorageSize,
- OUT UINT64 *MaximumVariableSize
- )
-{
- return EmuQueryVariableInfo (
- Attributes,
- MaximumVariableStorageSize,
- RemainingVariableStorageSize,
- MaximumVariableSize,
- &mVariableModuleGlobal->VariableGlobal[Physical]
- );
-}
-
-/**
- Notification function of EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE.
-
- This is a notification function registered on EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event.
- It convers pointer to new virtual address.
-
- @param Event Event whose notification function is being invoked.
- @param Context Pointer to the notification function's context.
-
-**/
-VOID
-EFIAPI
-VariableClassAddressChangeEvent (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
- EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal->PlatformLangCodes);
- EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal->LangCodes);
- EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal->PlatformLang);
- EfiConvertPointer (
- 0x0,
- (VOID **) &mVariableModuleGlobal->VariableGlobal[Physical].NonVolatileVariableBase
- );
- EfiConvertPointer (
- 0x0,
- (VOID **) &mVariableModuleGlobal->VariableGlobal[Physical].VolatileVariableBase
- );
- EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal);
-}
-
-/**
- EmuVariable Driver main entry point. The Variable driver places the 4 EFI
- runtime services in the EFI System Table and installs arch protocols
- for variable read and write services being available. It also registers
- notification function for EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event.
-
- @param[in] ImageHandle The firmware allocated handle for the EFI image.
- @param[in] SystemTable A pointer to the EFI System Table.
-
- @retval EFI_SUCCESS Variable service successfully initialized.
-
-**/
-EFI_STATUS
-EFIAPI
-VariableServiceInitialize (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_HANDLE NewHandle;
- EFI_STATUS Status;
-
- Status = VariableCommonInitialize (ImageHandle, SystemTable);
- ASSERT_EFI_ERROR (Status);
-
- SystemTable->RuntimeServices->GetVariable = RuntimeServiceGetVariable;
- SystemTable->RuntimeServices->GetNextVariableName = RuntimeServiceGetNextVariableName;
- SystemTable->RuntimeServices->SetVariable = RuntimeServiceSetVariable;
- SystemTable->RuntimeServices->QueryVariableInfo = RuntimeServiceQueryVariableInfo;
-
- //
- // Now install the Variable Runtime Architectural Protocol on a new handle
- //
- NewHandle = NULL;
- Status = gBS->InstallMultipleProtocolInterfaces (
- &NewHandle,
- &gEfiVariableArchProtocolGuid,
- NULL,
- &gEfiVariableWriteArchProtocolGuid,
- NULL,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
-
- Status = gBS->CreateEventEx (
- EVT_NOTIFY_SIGNAL,
- TPL_NOTIFY,
- VariableClassAddressChangeEvent,
- NULL,
- &gEfiEventVirtualAddressChangeGuid,
- &mVirtualAddressChangeEvent
- );
- ASSERT_EFI_ERROR (Status);
-
- return EFI_SUCCESS;
-}
diff --git a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/Variable.h b/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/Variable.h deleted file mode 100644 index 2851582d0d..0000000000 --- a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/Variable.h +++ /dev/null @@ -1,277 +0,0 @@ -/** @file
-
- The internal header file includes the common header files, defines
- internal structure and functions used by EmuVariable module.
-
-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
-This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#ifndef _VARIABLE_H_
-#define _VARIABLE_H_
-
-#include <Uefi.h>
-
-#include <Protocol/VariableWrite.h>
-#include <Protocol/Variable.h>
-
-#include <Library/BaseMemoryLib.h>
-#include <Library/MemoryAllocationLib.h>
-#include <Library/DebugLib.h>
-#include <Library/UefiRuntimeLib.h>
-#include <Library/UefiDriverEntryPoint.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiLib.h>
-#include <Library/BaseLib.h>
-#include <Library/PcdLib.h>
-#include <Library/HobLib.h>
-#include <Guid/VariableFormat.h>
-#include <Guid/GlobalVariable.h>
-
-#include <Guid/EventGroup.h>
-
-#define GET_VARIABLE_NAME_PTR(a) (CHAR16 *) ((UINTN) (a) + sizeof (VARIABLE_HEADER))
-
-///
-/// The size of a 3 character ISO639 language code.
-///
-#define ISO_639_2_ENTRY_SIZE 3
-
-typedef enum {
- Physical,
- Virtual
-} VARIABLE_POINTER_TYPE;
-
-typedef struct {
- VARIABLE_HEADER *CurrPtr;
- VARIABLE_HEADER *EndPtr;
- VARIABLE_HEADER *StartPtr;
- BOOLEAN Volatile;
-} VARIABLE_POINTER_TRACK;
-
-typedef struct {
- EFI_PHYSICAL_ADDRESS VolatileVariableBase;
- EFI_PHYSICAL_ADDRESS NonVolatileVariableBase;
- EFI_LOCK VariableServicesLock;
-} VARIABLE_GLOBAL;
-
-typedef struct {
- VARIABLE_GLOBAL VariableGlobal[2];
- UINTN VolatileLastVariableOffset;
- UINTN NonVolatileLastVariableOffset;
- UINTN CommonVariableTotalSize;
- UINTN HwErrVariableTotalSize;
- CHAR8 *PlatformLangCodes;
- CHAR8 *LangCodes;
- CHAR8 *PlatformLang;
- CHAR8 Lang[ISO_639_2_ENTRY_SIZE + 1];
-} ESAL_VARIABLE_GLOBAL;
-
-///
-/// Don't use module globals after the SetVirtualAddress map is signaled
-///
-extern ESAL_VARIABLE_GLOBAL *mVariableModuleGlobal;
-
-/**
- Initializes variable store area for non-volatile and volatile variable.
-
- This function allocates and initializes memory space for global context of ESAL
- variable service and variable store area for non-volatile and volatile variable.
-
- @param ImageHandle The Image handle of this driver.
- @param SystemTable The pointer of EFI_SYSTEM_TABLE.
-
- @retval EFI_SUCCESS Function successfully executed.
- @retval EFI_OUT_OF_RESOURCES Fail to allocate enough memory resource.
-
-**/
-EFI_STATUS
-EFIAPI
-VariableCommonInitialize (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- );
-
-/**
- Entry point of EmuVariable service module.
-
- This function is the entry point of EmuVariable service module.
- It registers all interfaces of Variable Services, initializes
- variable store for non-volatile and volatile variables, and registers
- notification function for EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event.
-
- @param ImageHandle The Image handle of this driver.
- @param SystemTable The pointer of EFI_SYSTEM_TABLE.
-
- @retval EFI_SUCCESS Variable service successfully initialized.
-
-**/
-EFI_STATUS
-EFIAPI
-VariableServiceInitialize (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- );
-
-/**
- Notification function of EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE.
-
- This is a notification function registered on EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event.
- It convers pointer to new virtual address.
-
- @param Event Event whose notification function is being invoked.
- @param Context Pointer to the notification function's context.
-
-**/
-VOID
-EFIAPI
-VariableClassAddressChangeEvent (
- IN EFI_EVENT Event,
- IN VOID *Context
- );
-
-/**
- This code finds variable in storage blocks (Volatile or Non-Volatile).
-
- @param VariableName A Null-terminated Unicode string that is the name of
- the vendor's variable.
- @param VendorGuid A unique identifier for the vendor.
- @param Attributes If not NULL, a pointer to the memory location to return the
- attributes bitmask for the variable.
- @param DataSize Size of Data found. If size is less than the
- data, this value contains the required size.
- @param Data On input, the size in bytes of the return Data buffer.
- On output, the size of data returned in Data.
- @param Global Pointer to VARIABLE_GLOBAL structure
-
- @retval EFI_SUCCESS The function completed successfully.
- @retval EFI_NOT_FOUND The variable was not found.
- @retval EFI_BUFFER_TOO_SMALL DataSize is too small for the result. DataSize has
- been updated with the size needed to complete the request.
- @retval EFI_INVALID_PARAMETER VariableName or VendorGuid or DataSize is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-EmuGetVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- OUT UINT32 *Attributes OPTIONAL,
- IN OUT UINTN *DataSize,
- OUT VOID *Data,
- IN VARIABLE_GLOBAL *Global
- );
-
-/**
-
- This code finds the next available variable.
-
- @param VariableNameSize The size of the VariableName buffer. The size must be large enough to fit input
- string supplied in VariableName buffer.
- @param VariableName On input, supplies the last VariableName that was returned by GetNextVariableName().
- On output, returns the Null-terminated Unicode string of the current variable.
- @param VendorGuid On input, supplies the last VendorGuid that was returned by GetNextVariableName().
- On output, returns the VendorGuid of the current variable.
- @param Global Pointer to VARIABLE_GLOBAL structure.
-
- @retval EFI_SUCCESS The function completed successfully.
- @retval EFI_NOT_FOUND The next variable was not found.
- @retval EFI_BUFFER_TOO_SMALL The VariableNameSize is too small for the result.
- VariableNameSize has been updated with the size needed to complete the request.
- @retval EFI_INVALID_PARAMETER VariableNameSize or VariableName or VendorGuid is NULL.
- @retval EFI_INVALID_PARAMETER The input values of VariableName and VendorGuid are not a name and
- GUID of an existing variable.
- @retval EFI_INVALID_PARAMETER Null-terminator is not found in the first VariableNameSize bytes of
- the input VariableName buffer.
-
-**/
-EFI_STATUS
-EFIAPI
-EmuGetNextVariableName (
- IN OUT UINTN *VariableNameSize,
- IN OUT CHAR16 *VariableName,
- IN OUT EFI_GUID *VendorGuid,
- IN VARIABLE_GLOBAL *Global
- );
-
-/**
-
- This code sets variable in storage blocks (Volatile or Non-Volatile).
-
- @param VariableName A Null-terminated Unicode string that is the name of the vendor's
- variable. Each VariableName is unique for each
- VendorGuid. VariableName must contain 1 or more
- Unicode characters. If VariableName is an empty Unicode
- string, then EFI_INVALID_PARAMETER is returned.
- @param VendorGuid A unique identifier for the vendor
- @param Attributes Attributes bitmask to set for the variable
- @param DataSize The size in bytes of the Data buffer. A size of zero causes the
- variable to be deleted.
- @param Data The contents for the variable
- @param Global Pointer to VARIABLE_GLOBAL structure
- @param VolatileOffset The offset of last volatile variable
- @param NonVolatileOffset The offset of last non-volatile variable
-
- @retval EFI_SUCCESS The firmware has successfully stored the variable and its data as
- defined by the Attributes.
- @retval EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied, or the
- DataSize exceeds the maximum allowed, or VariableName is an empty
- Unicode string, or VendorGuid is NULL.
- @retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the variable and its data.
- @retval EFI_DEVICE_ERROR The variable could not be saved due to a hardware failure.
- @retval EFI_WRITE_PROTECTED The variable in question is read-only or cannot be deleted.
- @retval EFI_NOT_FOUND The variable trying to be updated or deleted was not found.
-
-**/
-EFI_STATUS
-EFIAPI
-EmuSetVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- IN UINT32 Attributes,
- IN UINTN DataSize,
- IN VOID *Data,
- IN VARIABLE_GLOBAL *Global,
- IN UINTN *VolatileOffset,
- IN UINTN *NonVolatileOffset
- );
-
-/**
-
- This code returns information about the EFI variables.
-
- @param Attributes Attributes bitmask to specify the type of variables
- on which to return information.
- @param MaximumVariableStorageSize On output the maximum size of the storage space available for
- the EFI variables associated with the attributes specified.
- @param RemainingVariableStorageSize Returns the remaining size of the storage space available for EFI
- variables associated with the attributes specified.
- @param MaximumVariableSize Returns the maximum size of an individual EFI variable
- associated with the attributes specified.
- @param Global Pointer to VARIABLE_GLOBAL structure.
-
- @retval EFI_SUCCESS Valid answer returned.
- @retval EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied
- @retval EFI_UNSUPPORTED The attribute is not supported on this platform, and the
- MaximumVariableStorageSize, RemainingVariableStorageSize,
- MaximumVariableSize are undefined.
-
-**/
-EFI_STATUS
-EFIAPI
-EmuQueryVariableInfo (
- IN UINT32 Attributes,
- OUT UINT64 *MaximumVariableStorageSize,
- OUT UINT64 *RemainingVariableStorageSize,
- OUT UINT64 *MaximumVariableSize,
- IN VARIABLE_GLOBAL *Global
- );
-
-#endif
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