/**
Get PCD value's size for POINTER type PCD.
The POINTER type PCD's value will be stored into a buffer in specified size.
The max size of this PCD's value is described in PCD's definition in DEC file.
@param LocalTokenNumberTableIdx Index of PCD token number in PCD token table
@param MaxSize Maximum size of PCD's value
@param Database Pcd database in PEI phase.
@return PCD value's size for POINTER type PCD.
**/
UINTN
GetPtrTypeSize (
IN UINTN LocalTokenNumberTableIdx,
OUT UINTN *MaxSize,
IN PEI_PCD_DATABASE *Database
)
{
INTN SizeTableIdx;
UINTN LocalTokenNumber;
SKU_ID *SkuIdTable;
SIZE_INFO *SizeTable;
UINTN Index;
SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, Database);
LocalTokenNumber = *((UINT32 *)((UINT8 *)Database + Database->LocalTokenNumberTableOffset) + LocalTokenNumberTableIdx);
ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER);
SizeTable = (SIZE_INFO *)((UINT8 *)Database + Database->SizeTableOffset);
*MaxSize = SizeTable[SizeTableIdx];
//
// SizeTable only contain record for PCD_DATUM_TYPE_POINTER type
// PCD entry.
//
if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {
//
// We have only two entry for VPD enabled PCD entry:
// 1) MAX Size.
// 2) Current Size
// We consider current size is equal to MAX size.
//
return *MaxSize;
} else {
if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {
//
// We have only two entry for Non-Sku enabled PCD entry:
// 1) MAX SIZE
// 2) Current Size
//
return SizeTable[SizeTableIdx + 1];
} else {
//
// We have these entry for SKU enabled PCD entry
// 1) MAX SIZE
// 2) Current Size for each SKU_ID (It is equal to MaxSku).
//
SkuIdTable = GetSkuIdArray (LocalTokenNumberTableIdx, Database);
for (Index = 0; Index < SkuIdTable[0]; Index++) {
if (SkuIdTable[1 + Index] == Database->SystemSkuId) {
return SizeTable[SizeTableIdx + 1 + Index];
}
}
return SizeTable[SizeTableIdx + 1];
}
}
}
/**
Get index of PCD entry in size table.
@param LocalTokenNumberTableIdx Index of this PCD in local token number table.
@param Database Pointer to PCD database in PEI phase.
@return index of PCD entry in size table.
**/
UINTN
GetSizeTableIndex (
IN UINTN LocalTokenNumberTableIdx,
IN PEI_PCD_DATABASE *Database
)
{
UINTN Index;
UINTN SizeTableIdx;
UINTN LocalTokenNumber;
SKU_ID *SkuIdTable;
SizeTableIdx = 0;
for (Index = 0; Index < LocalTokenNumberTableIdx; Index++) {
LocalTokenNumber = *((UINT32 *)((UINT8 *)Database + Database->LocalTokenNumberTableOffset) + Index);
if ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER) {
//
// SizeTable only contain record for PCD_DATUM_TYPE_POINTER type
// PCD entry.
//
if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {
//
// We have only two entry for VPD enabled PCD entry:
// 1) MAX Size.
// 2) Current Size
// Current size is equal to MAX size.
//
SizeTableIdx += 2;
} else {
if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {
//
// We have only two entry for Non-Sku enabled PCD entry:
// 1) MAX SIZE
// 2) Current Size
//
SizeTableIdx += 2;
} else {
//
// We have these entry for SKU enabled PCD entry
// 1) MAX SIZE
// 2) Current Size for each SKU_ID (It is equal to MaxSku).
//
SkuIdTable = GetSkuIdArray (Index, Database);
SizeTableIdx += (UINTN)*SkuIdTable + 1;
}
}
}
}
return SizeTableIdx;
}
/**
Set PCD value's size for POINTER type PCD.
The POINTER type PCD's value will be stored into a buffer in specified size.
The max size of this PCD's value is described in PCD's definition in DEC file.
@param LocalTokenNumberTableIdx Index of PCD token number in PCD token table
@param CurrentSize Maximum size of PCD's value
@param Database Pcd database in PEI phase.
@retval TRUE Success to set PCD's value size, which is not exceed maximum size
@retval FALSE Fail to set PCD's value size, which maybe exceed maximum size
**/
BOOLEAN
SetPtrTypeSize (
IN UINTN LocalTokenNumberTableIdx,
IN OUT UINTN *CurrentSize,
IN PEI_PCD_DATABASE *Database
)
{
INTN SizeTableIdx;
UINTN LocalTokenNumber;
SKU_ID *SkuIdTable;
SIZE_INFO *SizeTable;
UINTN Index;
UINTN MaxSize;
SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, Database);
LocalTokenNumber = *((UINT32 *)((UINT8 *)Database + Database->LocalTokenNumberTableOffset) + LocalTokenNumberTableIdx);
ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER);
SizeTable = (SIZE_INFO *)((UINT8 *)Database + Database->SizeTableOffset);
MaxSize = SizeTable[SizeTableIdx];
//
// SizeTable only contain record for PCD_DATUM_TYPE_POINTER type
// PCD entry.
//
if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {
//
// We shouldn't come here as we don't support SET for VPD
//
ASSERT (FALSE);
return FALSE;
} else {
if ((*CurrentSize > MaxSize) ||
(*CurrentSize == MAX_ADDRESS)) {
*CurrentSize = MaxSize;
return FALSE;
}
if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {
//
// We have only two entry for Non-Sku enabled PCD entry:
// 1) MAX SIZE
// 2) Current Size
//
SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize;
return TRUE;
} else {
//
// We have these entry for SKU enabled PCD entry
// 1) MAX SIZE
// 2) Current Size for each SKU_ID (It is equal to MaxSku).
//
SkuIdTable = GetSkuIdArray (LocalTokenNumberTableIdx, Database);
for (Index = 0; Index < SkuIdTable[0]; Index++) {
if (SkuIdTable[1 + Index] == Database->SystemSkuId) {
SizeTable[SizeTableIdx + 1 + Index] = (SIZE_INFO) *CurrentSize;
return TRUE;
}
}
SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize;
return TRUE;
}
}
}
