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update platformlangcodes and langcodes to adapt new language convert algorithm. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8184 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
eric_tian 2009-04-27 07:06:01 +00:00
parent ec2e30d523
commit 72399daee4
7 changed files with 1317 additions and 574 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

756
MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariable.c
View File

@ -23,6 +23,73 @@ 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.
@ -118,9 +185,7 @@ GetNextVariablePtr (
//
VarHeader = (VARIABLE_HEADER *) (GetVariableDataPtr (Variable) + Variable->DataSize + GET_PAD_SIZE (Variable->DataSize));
if (VarHeader->StartId != VARIABLE_DATA ||
(sizeof (VARIABLE_HEADER) + VarHeader->DataSize + VarHeader->NameSize) > FixedPcdGet32(PcdMaxVariableSize)
) {
if (VarHeader->StartId != VARIABLE_DATA) {
return NULL;
}
@ -246,6 +311,472 @@ UpdateVariableInfo (
}
}
/**
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
RFC3066 and ISO639 language tags.
In ISO639 language tags, take 3-characters as a delimitation to find matched string and calculate the index.
In RFC3066 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 RFC3066.
@retval the index of language in the language codes.
**/
UINTN
EFIAPI
GetIndexFromSupportedLangCodes(
IN CHAR8 *SupportedLang,
IN CHAR8 *Lang,
IN BOOLEAN Iso639Language
)
{
UINTN Index;
UINT32 CompareLength;
CHAR8 *Supported;
Index = 0;
Supported = SupportedLang;
if (Iso639Language) {
CompareLength = 3;
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 RFC3066 language code
//
while (*Supported != '\0') {
//
// take semicolon as delimitation, sequentially traverse supported language codes.
//
for (CompareLength = 0; *Supported != ';' && *Supported != '\0'; CompareLength++) {
Supported++;
}
if (AsciiStrnCmp (Lang, Supported - CompareLength, CompareLength) == 0) {
//
// Successfully find the index of Lang string in SupportedLang string.
//
return Index;
}
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
RFC3066 and ISO639 language tags.
In ISO639 language tags, take 3-characters as a delimitation. Find language string according to the index.
In RFC3066 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 RFC3066.
@retval the language string in the language codes.
**/
CHAR8 *
EFIAPI
GetLangFromSupportedLangCodes (
IN CHAR8 *SupportedLang,
IN UINTN Index,
IN BOOLEAN Iso639Language
)
{
UINTN SubIndex;
UINT32 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 = 3;
SetMem (mVariableModuleGlobal->Lang, sizeof(mVariableModuleGlobal->Lang), 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.
//
SetMem (mVariableModuleGlobal->PlatformLang, sizeof (mVariableModuleGlobal->PlatformLang), 0);
return CopyMem (mVariableModuleGlobal->PlatformLang, Supported - CompareLength, CompareLength);
}
SubIndex++;
}
}
}
/**
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
@retval EFI_SUCCESS auto update operation is successful.
**/
EFI_STATUS
EFIAPI
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;
//
// 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"PlatformLangCodes") == 0) {
//
// 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.
//
AsciiStrnCpy (mVariableModuleGlobal->PlatformLangCodes, Data, DataSize);
} else if (StrCmp (VariableName, L"LangCodes") == 0) {
//
// 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.
//
AsciiStrnCpy (mVariableModuleGlobal->LangCodes, Data, DataSize);
} else if (StrCmp (VariableName, L"PlatformLang") == 0) {
ASSERT (AsciiStrLen (mVariableModuleGlobal->PlatformLangCodes) != 0);
//
// When setting PlatformLang, firstly get most matched language string from supported language codes.
//
BestPlatformLang = GetBestLanguage(mVariableModuleGlobal->PlatformLangCodes, FALSE, Data);
//
// Get the corresponding index in language codes.
//
Index = GetIndexFromSupportedLangCodes(mVariableModuleGlobal->PlatformLangCodes, BestPlatformLang, FALSE);
//
// Get the corresponding ISO639 language tag according to RFC3066 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) {
ASSERT (AsciiStrLen (mVariableModuleGlobal->LangCodes) != 0);
//
// When setting Lang, firstly get most matched language string from supported language codes.
//
BestLang = GetBestLanguage(mVariableModuleGlobal->LangCodes, TRUE, Data);
//
// Get the corresponding index in language codes.
//
Index = GetIndexFromSupportedLangCodes(mVariableModuleGlobal->LangCodes, BestLang, TRUE);
//
// Get the corresponding RFC3066 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, AsciiStrLen (BestPlatformLang), Attributes, &Variable);
DEBUG((EFI_D_INFO, "Variable Driver Auto Update Lang, Lang:%a, PlatformLang:%a\n", BestLang, BestPlatformLang));
ASSERT_EFI_ERROR(Status);
}
return EFI_SUCCESS;
}
/**
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)
&& ((VarSize + mVariableModuleGlobal->HwErrVariableTotalSize) > FixedPcdGet32(PcdHwErrStorageSize)))
|| (((Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == 0)
&& ((VarSize + mVariableModuleGlobal->CommonVariableTotalSize) > NonVolatileVarableStoreSize - sizeof (VARIABLE_STORE_HEADER) - FixedPcdGet32(PcdHwErrStorageSize)))) {
Status = EFI_OUT_OF_RESOURCES;
goto Done;
}
NextVariable = (VARIABLE_HEADER *) (UINT8 *) (mVariableModuleGlobal->NonVolatileLastVariableOffset
+ (UINTN) Global->NonVolatileVariableBase);
mVariableModuleGlobal->NonVolatileLastVariableOffset += VarSize;
if ((Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) != 0) {
mVariableModuleGlobal->HwErrVariableTotalSize += VarSize;
} else {
mVariableModuleGlobal->CommonVariableTotalSize += VarSize;
}
} else {
if ((UINT32) (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 += 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
//
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.
@ -349,7 +880,6 @@ FindVariable (
@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
@param Instance Instance of the Firmware Volume.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_FOUND The variable was not found.
@ -362,12 +892,11 @@ EFI_STATUS
EFIAPI
EmuGetVariable (
IN CHAR16 *VariableName,
IN EFI_GUID * VendorGuid,
IN EFI_GUID *VendorGuid,
OUT UINT32 *Attributes OPTIONAL,
IN OUT UINTN *DataSize,
OUT VOID *Data,
IN VARIABLE_GLOBAL * Global,
IN UINT32 Instance
IN VARIABLE_GLOBAL *Global
)
{
VARIABLE_POINTER_TRACK Variable;
@ -425,7 +954,6 @@ Done:
@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.
@param Instance Instance of the Firmware Volume.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_FOUND The next variable was not found.
@ -440,8 +968,7 @@ EmuGetNextVariableName (
IN OUT UINTN *VariableNameSize,
IN OUT CHAR16 *VariableName,
IN OUT EFI_GUID *VendorGuid,
IN VARIABLE_GLOBAL *Global,
IN UINT32 Instance
IN VARIABLE_GLOBAL *Global
)
{
VARIABLE_POINTER_TRACK Variable;
@ -535,7 +1062,6 @@ Done:
@param Global Pointer to VARIABLE_GLOBAL structure
@param VolatileOffset The offset of last volatile variable
@param NonVolatileOffset The offset of last non-volatile variable
@param Instance Instance of the Firmware Volume.
@retval EFI_SUCCESS The firmware has successfully stored the variable and its data as
defined by the Attributes.
@ -558,17 +1084,11 @@ EmuSetVariable (
IN VOID *Data,
IN VARIABLE_GLOBAL *Global,
IN UINTN *VolatileOffset,
IN UINTN *NonVolatileOffset,
IN UINT32 Instance
IN UINTN *NonVolatileOffset
)
{
VARIABLE_POINTER_TRACK Variable;
EFI_STATUS Status;
VARIABLE_HEADER *NextVariable;
UINTN VarNameSize;
UINTN VarNameOffset;
UINTN VarDataOffset;
UINTN VarSize;
//
// Check input parameters
@ -608,155 +1128,13 @@ EmuSetVariable (
Status = FindVariable (VariableName, VendorGuid, &Variable, Global);
if (Status == EFI_SUCCESS && 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 if (Status == EFI_NOT_FOUND) {
//
// 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;
}
} else {
//
// Status should be EFI_INVALID_PARAMETER here according to return status of FindVariable().
//
ASSERT (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.
// Hook the operation of setting PlatformLangCodes/PlatformLang and LangCodes/Lang
//
VarNameOffset = sizeof (VARIABLE_HEADER);
VarNameSize = StrSize (VariableName);
VarDataOffset = VarNameOffset + VarNameSize + GET_PAD_SIZE (VarNameSize);
VarSize = VarDataOffset + DataSize + GET_PAD_SIZE (DataSize);
AutoUpdateLangVariable (VariableName, Data, DataSize);
if ((Attributes & EFI_VARIABLE_NON_VOLATILE) != 0) {
if ((UINT32) (VarSize +*NonVolatileOffset) >
((VARIABLE_STORE_HEADER *) ((UINTN) (Global->NonVolatileVariableBase)))->Size
) {
Status = EFI_OUT_OF_RESOURCES;
goto Done;
}
Status = UpdateVariable (VariableName, VendorGuid, Data, DataSize, Attributes, &Variable);
NextVariable = (VARIABLE_HEADER *) (UINT8 *) (*NonVolatileOffset + (UINTN) Global->NonVolatileVariableBase);
*NonVolatileOffset = *NonVolatileOffset + VarSize;
} else {
if ((UINT32) (VarSize +*VolatileOffset) >
((VARIABLE_STORE_HEADER *) ((UINTN) (Global->VolatileVariableBase)))->Size
) {
Status = EFI_OUT_OF_RESOURCES;
goto Done;
}
NextVariable = (VARIABLE_HEADER *) (UINT8 *) (*VolatileOffset + (UINTN) Global->VolatileVariableBase);
*VolatileOffset = *VolatileOffset + 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 (!EFI_ERROR (Status)) {
Variable.CurrPtr->State &= VAR_DELETED;
}
UpdateVariableInfo (VariableName, VendorGuid, Variable.Volatile, FALSE, TRUE, FALSE, FALSE);
Status = EFI_SUCCESS;
Done:
ReleaseLockOnlyAtBootTime (&Global->VariableServicesLock);
return Status;
}
@ -774,7 +1152,6 @@ Done:
@param MaximumVariableSize Returns the maximum size of an individual EFI variable
associated with the attributes specified.
@param Global Pointer to VARIABLE_GLOBAL structure.
@param Instance Instance of the Firmware Volume.
@retval EFI_SUCCESS Valid answer returned.
@retval EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied
@ -790,14 +1167,18 @@ EmuQueryVariableInfo (
OUT UINT64 *MaximumVariableStorageSize,
OUT UINT64 *RemainingVariableStorageSize,
OUT UINT64 *MaximumVariableSize,
IN VARIABLE_GLOBAL *Global,
IN UINT32 Instance
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;
@ -818,6 +1199,11 @@ EmuQueryVariableInfo (
// 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;
}
AcquireLockOnlyAtBootTime(&Global->VariableServicesLock);
@ -839,18 +1225,23 @@ EmuQueryVariableInfo (
// with the storage size (excluding the storage header size)
//
*MaximumVariableStorageSize = VariableStoreHeader->Size - sizeof (VARIABLE_STORE_HEADER);
*RemainingVariableStorageSize = VariableStoreHeader->Size - sizeof (VARIABLE_STORE_HEADER);
//
// Let *MaximumVariableSize be FixedPcdGet32(PcdMaxVariableSize) with the exception of the variable header size.
//
*MaximumVariableSize = FixedPcdGet32(PcdMaxVariableSize) - sizeof (VARIABLE_HEADER);
//
// Harware error record variable needs larger size.
//
if ((Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == EFI_VARIABLE_HARDWARE_ERROR_RECORD) {
if ((Attributes & (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) == (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) {
*MaximumVariableStorageSize = FixedPcdGet32(PcdHwErrStorageSize);
*MaximumVariableSize = FixedPcdGet32(PcdMaxHardwareErrorVariableSize) - sizeof (VARIABLE_HEADER);
} else {
if ((Attributes & EFI_VARIABLE_NON_VOLATILE) != 0) {
ASSERT (FixedPcdGet32(PcdHwErrStorageSize) < VariableStoreHeader->Size);
*MaximumVariableStorageSize = VariableStoreHeader->Size - sizeof (VARIABLE_STORE_HEADER) - FixedPcdGet32(PcdHwErrStorageSize);
}
//
// Let *MaximumVariableSize be FixedPcdGet32(PcdMaxVariableSize) with the exception of the variable header size.
//
*MaximumVariableSize = FixedPcdGet32(PcdMaxVariableSize) - sizeof (VARIABLE_HEADER);
}
//
@ -862,15 +1253,16 @@ EmuQueryVariableInfo (
// Now walk through the related variable store.
//
while (Variable < GetEndPointer (VariableStoreHeader)) {
if (Variable->StartId != VARIABLE_DATA) {
NextVariable = GetNextVariablePtr(Variable);
if (NextVariable == NULL) {
break;
}
NextVariable = (VARIABLE_HEADER *) (GetVariableDataPtr (Variable) + Variable->DataSize + GET_PAD_SIZE (Variable->DataSize));
VariableSize = (UINT64) (UINTN) NextVariable - (UINT64) (UINTN) Variable;
if (Variable->State == VAR_ADDED) {
*RemainingVariableStorageSize -= VariableSize;
if ((NextVariable->Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == EFI_VARIABLE_HARDWARE_ERROR_RECORD) {
HwErrVariableTotalSize += VariableSize;
} else {
CommonVariableTotalSize += VariableSize;
}
//
@ -879,6 +1271,12 @@ EmuQueryVariableInfo (
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) {
@ -959,7 +1357,7 @@ VariableCommonInitialize (
//
// Allocate memory for mVariableModuleGlobal
//
mVariableModuleGlobal = (ESAL_VARIABLE_GLOBAL *) AllocateRuntimePool (
mVariableModuleGlobal = (ESAL_VARIABLE_GLOBAL *) AllocateRuntimeZeroPool (
sizeof (ESAL_VARIABLE_GLOBAL)
);
if (NULL == mVariableModuleGlobal) {

2
MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf
View File

@ -56,6 +56,7 @@
[Guids]
gEfiEventVirtualAddressChangeGuid ## PRODUCES ## Event
gEfiGlobalVariableGuid ## PRODUCES ## Variable Guid
gEfiVariableGuid
[Pcd.common]
@ -63,6 +64,7 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxHardwareErrorVariableSize
gEfiMdeModulePkgTokenSpaceGuid.PcdVariableStoreSize
gEfiMdeModulePkgTokenSpaceGuid.PcdVariableCollectStatistics
gEfiMdeModulePkgTokenSpaceGuid.PcdHwErrStorageSize
[Depex]
TRUE

12
MdeModulePkg/Universal/Variable/EmuRuntimeDxe/InitVariable.c
View File

@ -51,8 +51,7 @@ RuntimeServiceGetVariable (
Attributes OPTIONAL,
DataSize,
Data,
&mVariableModuleGlobal->VariableGlobal[Physical],
mVariableModuleGlobal->FvbInstance
&mVariableModuleGlobal->VariableGlobal[Physical]
);
}
@ -82,8 +81,7 @@ RuntimeServiceGetNextVariableName (
VariableNameSize,
VariableName,
VendorGuid,
&mVariableModuleGlobal->VariableGlobal[Physical],
mVariableModuleGlobal->FvbInstance
&mVariableModuleGlobal->VariableGlobal[Physical]
);
}
@ -123,8 +121,7 @@ RuntimeServiceSetVariable (
Data,
&mVariableModuleGlobal->VariableGlobal[Physical],
&mVariableModuleGlobal->VolatileLastVariableOffset,
&mVariableModuleGlobal->NonVolatileLastVariableOffset,
mVariableModuleGlobal->FvbInstance
&mVariableModuleGlobal->NonVolatileLastVariableOffset
);
}
@ -160,8 +157,7 @@ RuntimeServiceQueryVariableInfo (
MaximumVariableStorageSize,
RemainingVariableStorageSize,
MaximumVariableSize,
&mVariableModuleGlobal->VariableGlobal[Physical],
mVariableModuleGlobal->FvbInstance
&mVariableModuleGlobal->VariableGlobal[Physical]
);
}

26
MdeModulePkg/Universal/Variable/EmuRuntimeDxe/Variable.h
View File

@ -32,6 +32,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Library/BaseLib.h>
#include <Library/PcdLib.h>
#include <Guid/VariableFormat.h>
#include <Guid/GlobalVariable.h>
#include <Guid/EventGroup.h>
@ -59,7 +60,12 @@ typedef struct {
VARIABLE_GLOBAL VariableGlobal[2];
UINTN VolatileLastVariableOffset;
UINTN NonVolatileLastVariableOffset;
UINT32 FvbInstance;
UINTN CommonVariableTotalSize;
UINTN HwErrVariableTotalSize;
CHAR8 PlatformLangCodes[256]; //Pre-allocate 256 bytes space to accommodate the PlatformlangCodes.
CHAR8 LangCodes[256]; //Pre-allocate 256 bytes space to accommodate the langCodes.
CHAR8 PlatformLang[8]; //Pre-allocate 8 bytes space to accommodate the Platformlang variable.
CHAR8 Lang[4]; //Pre-allocate 4 bytes space to accommodate the lang variable.
} ESAL_VARIABLE_GLOBAL;
///
@ -138,7 +144,6 @@ VariableClassAddressChangeEvent (
@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
@param Instance Instance of the Firmware Volume.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_FOUND The variable was not found.
@ -151,12 +156,11 @@ EFI_STATUS
EFIAPI
EmuGetVariable (
IN CHAR16 *VariableName,
IN EFI_GUID * VendorGuid,
IN EFI_GUID *VendorGuid,
OUT UINT32 *Attributes OPTIONAL,
IN OUT UINTN *DataSize,
OUT VOID *Data,
IN VARIABLE_GLOBAL * Global,
IN UINT32 Instance
IN VARIABLE_GLOBAL *Global
);
/**
@ -169,7 +173,6 @@ EmuGetVariable (
@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.
@param Instance Instance of the Firmware Volume.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_FOUND The next variable was not found.
@ -184,8 +187,7 @@ EmuGetNextVariableName (
IN OUT UINTN *VariableNameSize,
IN OUT CHAR16 *VariableName,
IN OUT EFI_GUID *VendorGuid,
IN VARIABLE_GLOBAL *Global,
IN UINT32 Instance
IN VARIABLE_GLOBAL *Global
);
/**
@ -205,7 +207,6 @@ EmuGetNextVariableName (
@param Global Pointer to VARIABLE_GLOBAL structure
@param VolatileOffset The offset of last volatile variable
@param NonVolatileOffset The offset of last non-volatile variable
@param Instance Instance of the Firmware Volume.
@retval EFI_SUCCESS The firmware has successfully stored the variable and its data as
defined by the Attributes.
@ -228,8 +229,7 @@ EmuSetVariable (
IN VOID *Data,
IN VARIABLE_GLOBAL *Global,
IN UINTN *VolatileOffset,
IN UINTN *NonVolatileOffset,
IN UINT32 Instance
IN UINTN *NonVolatileOffset
);
/**
@ -245,7 +245,6 @@ EmuSetVariable (
@param MaximumVariableSize Returns the maximum size of an individual EFI variable
associated with the attributes specified.
@param Global Pointer to VARIABLE_GLOBAL structure.
@param Instance Instance of the Firmware Volume.
@retval EFI_SUCCESS Valid answer returned.
@retval EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied
@ -261,8 +260,7 @@ EmuQueryVariableInfo (
OUT UINT64 *MaximumVariableStorageSize,
OUT UINT64 *RemainingVariableStorageSize,
OUT UINT64 *MaximumVariableSize,
IN VARIABLE_GLOBAL *Global,
IN UINT32 Instance
IN VARIABLE_GLOBAL *Global
);
#endif

1088
MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
View File

File diff suppressed because it is too large Load Diff

4
MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h
View File

@ -59,6 +59,10 @@ typedef struct {
UINTN NonVolatileLastVariableOffset;
UINTN CommonVariableTotalSize;
UINTN HwErrVariableTotalSize;
CHAR8 PlatformLangCodes[256]; //Pre-allocate 256 bytes space to accommodate the PlatformlangCodes.
CHAR8 LangCodes[256]; //Pre-allocate 256 bytes space to accommodate the langCodes.
CHAR8 PlatformLang[8]; //Pre-allocate 8 bytes space to accommodate the Platformlang variable.
CHAR8 Lang[4]; //Pre-allocate 4 bytes space to accommodate the lang variable.
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbInstance;
} VARIABLE_MODULE_GLOBAL;

3
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf
View File

@ -77,6 +77,9 @@
[Depex]
gEfiFirmwareVolumeBlockProtocolGuid AND gEfiFaultTolerantWriteProtocolGuid
[BuildOptions.common]
MSFT:*_*_*_CC_FLAGS = /nologo /W4 /WX /Gy /c /D UNICODE /GL- /FI$(DEST_DIR_DEBUG)/AutoGen.h /EHs-c- /GF /Gs8192 /Zi /Gm
# [Event]
# ##
# # Event will be signaled for VIRTUAL_ADDRESS_CHANGE event.