diff options
Diffstat (limited to 'MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c')
| -rw-r--r-- | MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c | 186 |
1 files changed, 154 insertions, 32 deletions
diff --git a/MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c b/MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c index f4392b78dd..96381cd8c0 100644 --- a/MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c +++ b/MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c @@ -606,6 +606,29 @@ PeiLoadFixAddressHook( PrivateData->PhysicalMemoryBegin = TopLoadingAddress - TotalReservedMemorySize;
PrivateData->FreePhysicalMemoryTop = PrivateData->PhysicalMemoryBegin + PeiMemorySize;
}
+
+/**
+ This routine is invoked in switch stack as PeiCore Entry.
+
+ @param SecCoreData Points to a data structure containing information about the PEI core's operating
+ environment, such as the size and location of temporary RAM, the stack location and
+ the BFV location.
+ @param Private Pointer to old core data that is used to initialize the
+ core's data areas.
+**/
+VOID
+EFIAPI
+PeiCoreEntry (
+ IN CONST EFI_SEC_PEI_HAND_OFF *SecCoreData,
+ IN PEI_CORE_INSTANCE *Private
+ )
+{
+ //
+ // Entry PEI Phase 2
+ //
+ PeiCore (SecCoreData, NULL, Private);
+}
+
/**
Conduct PEIM dispatch.
@@ -637,17 +660,28 @@ PeiDispatcher ( PEIM_FILE_HANDLE_EXTENDED_DATA ExtendedData;
EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI *TemporaryRamSupportPpi;
UINT64 NewStackSize;
+ EFI_PHYSICAL_ADDRESS BaseOfNewHeap;
EFI_PHYSICAL_ADDRESS TopOfNewStack;
EFI_PHYSICAL_ADDRESS TopOfOldStack;
EFI_PHYSICAL_ADDRESS TemporaryRamBase;
UINTN TemporaryRamSize;
- EFI_PHYSICAL_ADDRESS TemporaryStackSize;
+ UINTN TemporaryStackSize;
+ VOID *TemporaryStackBase;
+ UINTN PeiTemporaryRamSize;
+ VOID *PeiTemporaryRamBase;
UINTN StackOffset;
BOOLEAN StackOffsetPositive;
+ EFI_PHYSICAL_ADDRESS HoleMemBase;
+ UINTN HoleMemSize;
EFI_FV_FILE_INFO FvFileInfo;
PEI_CORE_FV_HANDLE *CoreFvHandle;
VOID *LoadFixPeiCodeBegin;
-
+ EFI_PHYSICAL_ADDRESS TempBase1;
+ UINTN TempSize1;
+ EFI_PHYSICAL_ADDRESS TempBase2;
+ UINTN TempSize2;
+ UINTN Index;
+
PeiServices = (CONST EFI_PEI_SERVICES **) &Private->Ps;
PeimEntryPoint = NULL;
PeimFileHandle = NULL;
@@ -881,13 +915,6 @@ PeiDispatcher ( //
TopOfOldStack = (UINTN)SecCoreData->StackBase + SecCoreData->StackSize;
TopOfNewStack = Private->PhysicalMemoryBegin + NewStackSize;
- if (TopOfNewStack >= (UINTN)SecCoreData->PeiTemporaryRamBase) {
- Private->HeapOffsetPositive = TRUE;
- Private->HeapOffset = (UINTN)(TopOfNewStack - (UINTN)SecCoreData->PeiTemporaryRamBase);
- } else {
- Private->HeapOffsetPositive = FALSE;
- Private->HeapOffset = (UINTN)((UINTN)SecCoreData->PeiTemporaryRamBase - TopOfNewStack);
- }
if (TopOfNewStack >= TopOfOldStack) {
StackOffsetPositive = TRUE;
StackOffset = (UINTN)(TopOfNewStack - TopOfOldStack);
@@ -909,21 +936,13 @@ PeiDispatcher ( //
// Cache information from SecCoreData into locals before SecCoreData is converted to a permanent memory address
//
- TemporaryRamBase = (EFI_PHYSICAL_ADDRESS)(UINTN)SecCoreData->TemporaryRamBase;
- TemporaryRamSize = SecCoreData->TemporaryRamSize;
- TemporaryStackSize = SecCoreData->StackSize;
-
- //
- // Caculate new HandOffTable and PrivateData address in permanent memory's stack
- //
- if (StackOffsetPositive) {
- SecCoreData = (CONST EFI_SEC_PEI_HAND_OFF *)((UINTN)(VOID *)SecCoreData + StackOffset);
- Private = (PEI_CORE_INSTANCE *)((UINTN)(VOID *)Private + StackOffset);
- } else {
- SecCoreData = (CONST EFI_SEC_PEI_HAND_OFF *)((UINTN)(VOID *)SecCoreData - StackOffset);
- Private = (PEI_CORE_INSTANCE *)((UINTN)(VOID *)Private - StackOffset);
- }
-
+ TemporaryRamBase = (EFI_PHYSICAL_ADDRESS)(UINTN)SecCoreData->TemporaryRamBase;
+ TemporaryRamSize = SecCoreData->TemporaryRamSize;
+ TemporaryStackSize = SecCoreData->StackSize;
+ TemporaryStackBase = SecCoreData->StackBase;
+ PeiTemporaryRamSize = SecCoreData->PeiTemporaryRamSize;
+ PeiTemporaryRamBase = SecCoreData->PeiTemporaryRamBase;
+
//
// TemporaryRamSupportPpi is produced by platform's SEC
//
@@ -935,6 +954,29 @@ PeiDispatcher ( );
if (!EFI_ERROR (Status)) {
//
+ // Heap Offset
+ //
+ BaseOfNewHeap = TopOfNewStack;
+ if (BaseOfNewHeap >= (UINTN)SecCoreData->PeiTemporaryRamBase) {
+ Private->HeapOffsetPositive = TRUE;
+ Private->HeapOffset = (UINTN)(BaseOfNewHeap - (UINTN)SecCoreData->PeiTemporaryRamBase);
+ } else {
+ Private->HeapOffsetPositive = FALSE;
+ Private->HeapOffset = (UINTN)((UINTN)SecCoreData->PeiTemporaryRamBase - BaseOfNewHeap);
+ }
+
+ //
+ // Caculate new HandOffTable and PrivateData address in permanent memory's stack
+ //
+ if (StackOffsetPositive) {
+ SecCoreData = (CONST EFI_SEC_PEI_HAND_OFF *)((UINTN)(VOID *)SecCoreData + StackOffset);
+ Private = (PEI_CORE_INSTANCE *)((UINTN)(VOID *)Private + StackOffset);
+ } else {
+ SecCoreData = (CONST EFI_SEC_PEI_HAND_OFF *)((UINTN)(VOID *)SecCoreData - StackOffset);
+ Private = (PEI_CORE_INSTANCE *)((UINTN)(VOID *)Private - StackOffset);
+ }
+
+ //
// Temporary Ram Support PPI is provided by platform, it will copy
// temporary memory to permenent memory and do stack switching.
// After invoking Temporary Ram Support PPI, the following code's
@@ -947,18 +989,98 @@ PeiDispatcher ( TemporaryRamSize
);
+ //
+ // Entry PEI Phase 2
+ //
+ PeiCore (SecCoreData, NULL, Private);
} else {
//
- // In IA32/x64/Itanium architecture, we need platform provide
- // TEMPORARY_RAM_MIGRATION_PPI.
+ // Heap Offset
//
- ASSERT (FALSE);
- }
+ BaseOfNewHeap = TopOfNewStack;
+ HoleMemBase = TopOfNewStack;
+ HoleMemSize = TemporaryRamSize - PeiTemporaryRamSize - TemporaryStackSize;
+ if (HoleMemSize != 0) {
+ BaseOfNewHeap = BaseOfNewHeap + HoleMemSize;
+ }
+ if (BaseOfNewHeap >= (UINTN)SecCoreData->PeiTemporaryRamBase) {
+ Private->HeapOffsetPositive = TRUE;
+ Private->HeapOffset = (UINTN)(BaseOfNewHeap - (UINTN)SecCoreData->PeiTemporaryRamBase);
+ } else {
+ Private->HeapOffsetPositive = FALSE;
+ Private->HeapOffset = (UINTN)((UINTN)SecCoreData->PeiTemporaryRamBase - BaseOfNewHeap);
+ }
- //
- // Entry PEI Phase 2
- //
- PeiCore (SecCoreData, NULL, Private);
+ //
+ // Migrate Heap
+ //
+ CopyMem ((UINT8 *) (UINTN) BaseOfNewHeap, (UINT8 *) PeiTemporaryRamBase, PeiTemporaryRamSize);
+
+ //
+ // Migrate Stack
+ //
+ CopyMem ((UINT8 *) (UINTN) (TopOfNewStack - TemporaryStackSize), TemporaryStackBase, TemporaryStackSize);
+
+ //
+ // Copy Hole Range Data
+ // Convert PPI from Hole.
+ //
+ if (HoleMemSize != 0) {
+ //
+ // Prepare Hole
+ //
+ if (PeiTemporaryRamBase < TemporaryStackBase) {
+ TempBase1 = (EFI_PHYSICAL_ADDRESS) (UINTN) PeiTemporaryRamBase;
+ TempSize1 = PeiTemporaryRamSize;
+ TempBase2 = (EFI_PHYSICAL_ADDRESS) (UINTN) TemporaryStackBase;
+ TempSize2 = TemporaryStackSize;
+ } else {
+ TempBase1 = (EFI_PHYSICAL_ADDRESS) (UINTN) TemporaryStackBase;
+ TempSize1 = TemporaryStackSize;
+ TempBase2 =(EFI_PHYSICAL_ADDRESS) (UINTN) PeiTemporaryRamBase;
+ TempSize2 = PeiTemporaryRamSize;
+ }
+ if (TemporaryRamBase < TempBase1) {
+ Private->HoleData[0].Base = TemporaryRamBase;
+ Private->HoleData[0].Size = (UINTN) (TempBase1 - TemporaryRamBase);
+ }
+ if (TempBase1 + TempSize1 < TempBase2) {
+ Private->HoleData[1].Base = TempBase1 + TempSize1;
+ Private->HoleData[1].Size = (UINTN) (TempBase2 - TempBase1 - TempSize1);
+ }
+ if (TempBase2 + TempSize2 < TemporaryRamBase + TemporaryRamSize) {
+ Private->HoleData[2].Base = TempBase2 + TempSize2;
+ Private->HoleData[2].Size = (UINTN) (TemporaryRamBase + TemporaryRamSize - TempBase2 - TempSize2);
+ }
+
+ //
+ // Copy Hole Range data.
+ //
+ for (Index = 0; Index < HOLE_MAX_NUMBER; Index ++) {
+ if (Private->HoleData[Index].Size > 0) {
+ if (HoleMemBase > Private->HoleData[Index].Base) {
+ Private->HoleData[Index].OffsetPositive = TRUE;
+ Private->HoleData[Index].Offset = (UINTN) (HoleMemBase - Private->HoleData[Index].Base);
+ } else {
+ Private->HoleData[Index].OffsetPositive = FALSE;
+ Private->HoleData[Index].Offset = (UINTN) (Private->HoleData[Index].Base - HoleMemBase);
+ }
+ CopyMem ((VOID *) (UINTN) HoleMemBase, (VOID *) (UINTN) Private->HoleData[Index].Base, Private->HoleData[Index].Size);
+ HoleMemBase = HoleMemBase + Private->HoleData[Index].Size;
+ }
+ }
+ }
+
+ //
+ // Switch new stack
+ //
+ SwitchStack (
+ (SWITCH_STACK_ENTRY_POINT)(UINTN)PeiCoreEntry,
+ (VOID *) SecCoreData,
+ (VOID *) Private,
+ (VOID *) (UINTN) TopOfNewStack
+ );
+ }
//
// Code should not come here
|