tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

MdeModule PeiCore: Support pre memory page allocation 

Support pre memory page allocation.
Support FreePages.
Allocation made prior to permanent memory will be
migrated to permanent memory and the HOB updated.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Ruiyu Ni <Ruiyu.Ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
This commit is contained in:
Star Zeng 2017-02-23 18:16:09 +08:00
parent 9f43484ce9
commit b2374cecb0
5 changed files with 646 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c
View File

@ -682,13 +682,13 @@ PeiCheckAndSwitchStack (
&& (*StackPointer == INIT_CAR_VALUE);
StackPointer ++);
DEBUG ((EFI_D_INFO, "Temp Stack : BaseAddress=0x%p Length=0x%X\n", SecCoreData->StackBase, (UINT32)SecCoreData->StackSize));
DEBUG ((EFI_D_INFO, "Temp Heap : BaseAddress=0x%p Length=0x%X\n", Private->HobList.Raw, (UINT32)((UINTN) Private->HobList.HandoffInformationTable->EfiFreeMemoryTop - (UINTN) Private->HobList.Raw)));
DEBUG ((EFI_D_INFO, "Total temporary memory: %d bytes.\n", (UINT32)SecCoreData->TemporaryRamSize));
DEBUG ((EFI_D_INFO, " temporary memory stack ever used: %d bytes.\n",
DEBUG ((DEBUG_INFO, "Temp Stack : BaseAddress=0x%p Length=0x%X\n", SecCoreData->StackBase, (UINT32)SecCoreData->StackSize));
DEBUG ((DEBUG_INFO, "Temp Heap : BaseAddress=0x%p Length=0x%X\n", SecCoreData->PeiTemporaryRamBase, (UINT32)SecCoreData->PeiTemporaryRamSize));
DEBUG ((DEBUG_INFO, "Total temporary memory: %d bytes.\n", (UINT32)SecCoreData->TemporaryRamSize));
DEBUG ((DEBUG_INFO, " temporary memory stack ever used: %d bytes.\n",
(UINT32)(SecCoreData->StackSize - ((UINTN) StackPointer - (UINTN)SecCoreData->StackBase))
));
DEBUG ((EFI_D_INFO, " temporary memory heap used: %d bytes.\n",
DEBUG ((DEBUG_INFO, " temporary memory heap used for HobList: %d bytes.\n",
(UINT32)((UINTN)Private->HobList.HandoffInformationTable->EfiFreeMemoryBottom - (UINTN)Private->HobList.Raw)
));
DEBUG_CODE_END ();
@ -800,16 +800,28 @@ PeiCheckAndSwitchStack (
TemporaryRamSize
);
//
// Migrate memory pages allocated in pre-memory phase.
// It could not be called before calling TemporaryRamSupportPpi->TemporaryRamMigration()
// as the migrated memory pages may be overridden by TemporaryRamSupportPpi->TemporaryRamMigration().
//
MigrateMemoryPages (Private, TRUE);
//
// Entry PEI Phase 2
//
PeiCore (SecCoreData, NULL, Private);
} else {
//
// Migrate memory pages allocated in pre-memory phase.
//
MigrateMemoryPages (Private, FALSE);
//
// Migrate the PEI Services Table pointer from temporary RAM to permanent RAM.
//
MigratePeiServicesTablePointer ();
//
// Heap Offset
//
@ -837,7 +849,7 @@ PeiCheckAndSwitchStack (
//
HeapTemporaryRamSize = (UINTN) (Private->HobList.HandoffInformationTable->EfiFreeMemoryBottom - Private->HobList.HandoffInformationTable->EfiMemoryBottom);
ASSERT (BaseOfNewHeap + HeapTemporaryRamSize <= Private->FreePhysicalMemoryTop);
CopyMem ((UINT8 *) (UINTN) BaseOfNewHeap, (UINT8 *) PeiTemporaryRamBase, HeapTemporaryRamSize);
CopyMem ((UINT8 *) (UINTN) BaseOfNewHeap, PeiTemporaryRamBase, HeapTemporaryRamSize);
//
// Migrate Stack
@ -846,7 +858,6 @@ PeiCheckAndSwitchStack (
//
// Copy Hole Range Data
// Convert PPI from Hole.
//
if (HoleMemSize != 0) {
//

559
MdeModulePkg/Core/Pei/Memory/MemoryServices.c
View File

@ -1,7 +1,7 @@
/** @file
EFI PEI Core memory services
Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2017, 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
@ -110,18 +110,387 @@ PeiInstallPeiMemory (
}
/**
The purpose of the service is to publish an interface that allows
Migrate memory pages allocated in pre-memory phase.
Copy memory pages at temporary heap top to permanent heap top.
@param[in] Private Pointer to the private data passed in from caller.
@param[in] TemporaryRamMigrated Temporary memory has been migrated to permanent memory.
**/
VOID
MigrateMemoryPages (
IN PEI_CORE_INSTANCE *Private,
IN BOOLEAN TemporaryRamMigrated
)
{
EFI_PHYSICAL_ADDRESS NewMemPagesBase;
EFI_PHYSICAL_ADDRESS MemPagesBase;
Private->MemoryPages.Size = (UINTN) (Private->HobList.HandoffInformationTable->EfiMemoryTop -
Private->HobList.HandoffInformationTable->EfiFreeMemoryTop);
if (Private->MemoryPages.Size == 0) {
//
// No any memory page allocated in pre-memory phase.
//
return;
}
Private->MemoryPages.Base = Private->HobList.HandoffInformationTable->EfiFreeMemoryTop;
ASSERT (Private->MemoryPages.Size <= Private->FreePhysicalMemoryTop);
NewMemPagesBase = Private->FreePhysicalMemoryTop - Private->MemoryPages.Size;
NewMemPagesBase &= ~(UINT64)EFI_PAGE_MASK;
ASSERT (NewMemPagesBase >= Private->PhysicalMemoryBegin);
//
// Copy memory pages at temporary heap top to permanent heap top.
//
if (TemporaryRamMigrated) {
//
// Memory pages at temporary heap top has been migrated to permanent heap,
// Here still needs to copy them from permanent heap to permanent heap top.
//
MemPagesBase = Private->MemoryPages.Base;
if (Private->HeapOffsetPositive) {
MemPagesBase += Private->HeapOffset;
} else {
MemPagesBase -= Private->HeapOffset;
}
CopyMem ((VOID *)(UINTN)NewMemPagesBase, (VOID *)(UINTN)MemPagesBase, Private->MemoryPages.Size);
} else {
CopyMem ((VOID *)(UINTN)NewMemPagesBase, (VOID *)(UINTN)Private->MemoryPages.Base, Private->MemoryPages.Size);
}
if (NewMemPagesBase >= Private->MemoryPages.Base) {
Private->MemoryPages.OffsetPositive = TRUE;
Private->MemoryPages.Offset = (UINTN)(NewMemPagesBase - Private->MemoryPages.Base);
} else {
Private->MemoryPages.OffsetPositive = FALSE;
Private->MemoryPages.Offset = (UINTN)(Private->MemoryPages.Base - NewMemPagesBase);
}
DEBUG ((DEBUG_INFO, "Pages Offset = 0x%lX\n", (UINT64) Private->MemoryPages.Offset));
Private->FreePhysicalMemoryTop = NewMemPagesBase;
}
/**
Migrate MemoryBaseAddress in memory allocation HOBs
from the temporary memory to PEI installed memory.
@param[in] PrivateData Pointer to PeiCore's private data structure.
**/
VOID
ConvertMemoryAllocationHobs (
IN PEI_CORE_INSTANCE *PrivateData
)
{
EFI_PEI_HOB_POINTERS Hob;
EFI_HOB_MEMORY_ALLOCATION *MemoryAllocationHob;
EFI_PHYSICAL_ADDRESS OldMemPagesBase;
UINTN OldMemPagesSize;
if (PrivateData->MemoryPages.Size == 0) {
//
// No any memory page allocated in pre-memory phase.
//
return;
}
OldMemPagesBase = PrivateData->MemoryPages.Base;
OldMemPagesSize = PrivateData->MemoryPages.Size;
MemoryAllocationHob = NULL;
Hob.Raw = GetFirstHob (EFI_HOB_TYPE_MEMORY_ALLOCATION);
while (Hob.Raw != NULL) {
MemoryAllocationHob = (EFI_HOB_MEMORY_ALLOCATION *) Hob.Raw;
if ((MemoryAllocationHob->AllocDescriptor.MemoryBaseAddress >= OldMemPagesBase) &&
(MemoryAllocationHob->AllocDescriptor.MemoryBaseAddress < (OldMemPagesBase + OldMemPagesSize))
) {
if (PrivateData->MemoryPages.OffsetPositive) {
MemoryAllocationHob->AllocDescriptor.MemoryBaseAddress += PrivateData->MemoryPages.Offset;
} else {
MemoryAllocationHob->AllocDescriptor.MemoryBaseAddress -= PrivateData->MemoryPages.Offset;
}
}
Hob.Raw = GET_NEXT_HOB (Hob);
Hob.Raw = GetNextHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, Hob.Raw);
}
}
/**
Internal function to build a HOB for the memory allocation.
It will search and reuse the unused(freed) memory allocation HOB,
or build memory allocation HOB normally if no unused(freed) memory allocation HOB found.
@param[in] BaseAddress The 64 bit physical address of the memory.
@param[in] Length The length of the memory allocation in bytes.
@param[in] MemoryType The type of memory allocated by this HOB.
**/
VOID
InternalBuildMemoryAllocationHob (
IN EFI_PHYSICAL_ADDRESS BaseAddress,
IN UINT64 Length,
IN EFI_MEMORY_TYPE MemoryType
)
{
EFI_PEI_HOB_POINTERS Hob;
EFI_HOB_MEMORY_ALLOCATION *MemoryAllocationHob;
//
// Search unused(freed) memory allocation HOB.
//
MemoryAllocationHob = NULL;
Hob.Raw = GetFirstHob (EFI_HOB_TYPE_UNUSED);
while (Hob.Raw != NULL) {
if (Hob.Header->HobLength == sizeof (EFI_HOB_MEMORY_ALLOCATION)) {
MemoryAllocationHob = (EFI_HOB_MEMORY_ALLOCATION *) Hob.Raw;
break;
}
Hob.Raw = GET_NEXT_HOB (Hob);
Hob.Raw = GetNextHob (EFI_HOB_TYPE_UNUSED, Hob.Raw);
}
if (MemoryAllocationHob != NULL) {
//
// Reuse the unused(freed) memory allocation HOB.
//
MemoryAllocationHob->Header.HobType = EFI_HOB_TYPE_MEMORY_ALLOCATION;
ZeroMem (&(MemoryAllocationHob->AllocDescriptor.Name), sizeof (EFI_GUID));
MemoryAllocationHob->AllocDescriptor.MemoryBaseAddress = BaseAddress;
MemoryAllocationHob->AllocDescriptor.MemoryLength = Length;
MemoryAllocationHob->AllocDescriptor.MemoryType = MemoryType;
//
// Zero the reserved space to match HOB spec
//
ZeroMem (MemoryAllocationHob->AllocDescriptor.Reserved, sizeof (MemoryAllocationHob->AllocDescriptor.Reserved));
} else {
//
// No unused(freed) memory allocation HOB found.
// Build memory allocation HOB normally.
//
BuildMemoryAllocationHob (
BaseAddress,
Length,
MemoryType
);
}
}
/**
Update or split memory allocation HOB for memory pages allocate and free.
@param[in, out] MemoryAllocationHob Pointer to the memory allocation HOB
that needs to be updated or split.
On output, it will be filled with
the input Memory, Bytes and MemoryType.
@param[in] Memory Memory to allocate or free.
@param[in] Bytes Bytes to allocate or free.
@param[in] MemoryType EfiConventionalMemory for pages free,
others for pages allocate.
**/
VOID
UpdateOrSplitMemoryAllocationHob (
IN OUT EFI_HOB_MEMORY_ALLOCATION *MemoryAllocationHob,
IN EFI_PHYSICAL_ADDRESS Memory,
IN UINT64 Bytes,
IN EFI_MEMORY_TYPE MemoryType
)
{
if ((Memory + Bytes) <
(MemoryAllocationHob->AllocDescriptor.MemoryBaseAddress + MemoryAllocationHob->AllocDescriptor.MemoryLength)) {
//
// Last pages need to be split out.
//
InternalBuildMemoryAllocationHob (
Memory + Bytes,
(MemoryAllocationHob->AllocDescriptor.MemoryBaseAddress + MemoryAllocationHob->AllocDescriptor.MemoryLength) - (Memory + Bytes),
MemoryAllocationHob->AllocDescriptor.MemoryType
);
}
if (Memory > MemoryAllocationHob->AllocDescriptor.MemoryBaseAddress) {
//
// First pages need to be split out.
//
InternalBuildMemoryAllocationHob (
MemoryAllocationHob->AllocDescriptor.MemoryBaseAddress,
Memory - MemoryAllocationHob->AllocDescriptor.MemoryBaseAddress,
MemoryAllocationHob->AllocDescriptor.MemoryType
);
}
//
// Update the memory allocation HOB.
//
MemoryAllocationHob->AllocDescriptor.MemoryBaseAddress = Memory;
MemoryAllocationHob->AllocDescriptor.MemoryLength = Bytes;
MemoryAllocationHob->AllocDescriptor.MemoryType = MemoryType;
}
/**
Merge adjacent free memory ranges in memory allocation HOBs.
@retval TRUE There are free memory ranges merged.
@retval FALSE No free memory ranges merged.
**/
BOOLEAN
MergeFreeMemoryInMemoryAllocationHob (
VOID
)
{
EFI_PEI_HOB_POINTERS Hob;
EFI_PEI_HOB_POINTERS Hob2;
EFI_HOB_MEMORY_ALLOCATION *MemoryHob;
EFI_HOB_MEMORY_ALLOCATION *MemoryHob2;
UINT64 Start;
UINT64 End;
BOOLEAN Merged;
Merged = FALSE;
Hob.Raw = GetFirstHob (EFI_HOB_TYPE_MEMORY_ALLOCATION);
while (Hob.Raw != NULL) {
if (Hob.MemoryAllocation->AllocDescriptor.MemoryType == EfiConventionalMemory) {
MemoryHob = (EFI_HOB_MEMORY_ALLOCATION *) Hob.Raw;
Start = MemoryHob->AllocDescriptor.MemoryBaseAddress;
End = MemoryHob->AllocDescriptor.MemoryBaseAddress + MemoryHob->AllocDescriptor.MemoryLength;
Hob2.Raw = GET_NEXT_HOB (Hob);
Hob2.Raw = GetNextHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, Hob.Raw);
while (Hob2.Raw != NULL) {
if (Hob2.MemoryAllocation->AllocDescriptor.MemoryType == EfiConventionalMemory) {
MemoryHob2 = (EFI_HOB_MEMORY_ALLOCATION *) Hob2.Raw;
if (Start == (MemoryHob2->AllocDescriptor.MemoryBaseAddress + MemoryHob2->AllocDescriptor.MemoryLength)) {
//
// Merge adjacent two free memory ranges.
//
MemoryHob2->AllocDescriptor.MemoryLength += MemoryHob->AllocDescriptor.MemoryLength;
Merged = TRUE;
//
// Mark MemoryHob to be unused(freed).
//
MemoryHob->Header.HobType = EFI_HOB_TYPE_UNUSED;
break;
} else if (End == MemoryHob2->AllocDescriptor.MemoryBaseAddress) {
//
// Merge adjacent two free memory ranges.
//
MemoryHob2->AllocDescriptor.MemoryBaseAddress = MemoryHob->AllocDescriptor.MemoryBaseAddress;
MemoryHob2->AllocDescriptor.MemoryLength += MemoryHob->AllocDescriptor.MemoryLength;
Merged = TRUE;
//
// Mark MemoryHob to be unused(freed).
//
MemoryHob->Header.HobType = EFI_HOB_TYPE_UNUSED;
break;
}
}
Hob2.Raw = GET_NEXT_HOB (Hob2);
Hob2.Raw = GetNextHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, Hob2.Raw);
}
}
Hob.Raw = GET_NEXT_HOB (Hob);
Hob.Raw = GetNextHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, Hob.Raw);
}
return Merged;
}
/**
Find free memory by searching memory allocation HOBs.
@param[in] MemoryType The type of memory to allocate.
@param[in] Pages The number of contiguous 4 KB pages to allocate.
@param[in] Granularity Page allocation granularity.
@param[out] Memory Pointer to a physical address. On output, the address is set to the base
of the page range that was allocated.
@retval EFI_SUCCESS The memory range was successfully allocated.
@retval EFI_NOT_FOUND No memory allocation HOB with big enough free memory found.
**/
EFI_STATUS
FindFreeMemoryFromMemoryAllocationHob (
IN EFI_MEMORY_TYPE MemoryType,
IN UINTN Pages,
IN UINTN Granularity,
OUT EFI_PHYSICAL_ADDRESS *Memory
)
{
EFI_PEI_HOB_POINTERS Hob;
EFI_HOB_MEMORY_ALLOCATION *MemoryAllocationHob;
UINT64 Bytes;
EFI_PHYSICAL_ADDRESS BaseAddress;
Bytes = LShiftU64 (Pages, EFI_PAGE_SHIFT);
BaseAddress = 0;
MemoryAllocationHob = NULL;
Hob.Raw = GetFirstHob (EFI_HOB_TYPE_MEMORY_ALLOCATION);
while (Hob.Raw != NULL) {
if ((Hob.MemoryAllocation->AllocDescriptor.MemoryType == EfiConventionalMemory) &&
(Hob.MemoryAllocation->AllocDescriptor.MemoryLength >= Bytes)) {
//
// Found one memory allocation HOB with big enough free memory.
//
MemoryAllocationHob = (EFI_HOB_MEMORY_ALLOCATION *) Hob.Raw;
BaseAddress = MemoryAllocationHob->AllocDescriptor.MemoryBaseAddress +
MemoryAllocationHob->AllocDescriptor.MemoryLength - Bytes;
//
// Make sure the granularity could be satisfied.
//
BaseAddress &= ~((EFI_PHYSICAL_ADDRESS) Granularity - 1);
if (BaseAddress >= MemoryAllocationHob->AllocDescriptor.MemoryBaseAddress) {
break;
}
BaseAddress = 0;
MemoryAllocationHob = NULL;
}
//
// Continue to find.
//
Hob.Raw = GET_NEXT_HOB (Hob);
Hob.Raw = GetNextHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, Hob.Raw);
}
if (MemoryAllocationHob != NULL) {
UpdateOrSplitMemoryAllocationHob (MemoryAllocationHob, BaseAddress, Bytes, MemoryType);
*Memory = BaseAddress;
return EFI_SUCCESS;
} else {
if (MergeFreeMemoryInMemoryAllocationHob ()) {
//
// Retry if there are free memory ranges merged.
//
return FindFreeMemoryFromMemoryAllocationHob (MemoryType, Pages, Granularity, Memory);
}
return EFI_NOT_FOUND;
}
}
/**
The purpose of the service is to publish an interface that allows
PEIMs to allocate memory ranges that are managed by the PEI Foundation.
Prior to InstallPeiMemory() being called, PEI will allocate pages from the heap.
After InstallPeiMemory() is called, PEI will allocate pages within the region
of memory provided by InstallPeiMemory() service in a best-effort fashion.
Location-specific allocations are not managed by the PEI foundation code.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param MemoryType The type of memory to allocate.
@param Pages The number of contiguous 4 KB pages to allocate.
@param Memory Pointer to a physical address. On output, the address is set to the base
@param Memory Pointer to a physical address. On output, the address is set to the base
of the page range that was allocated.
@retval EFI_SUCCESS The memory range was successfully allocated.
@retval EFI_OUT_OF_RESOURCES The pages could not be allocated.
@retval EFI_INVALID_PARAMETER Type is not equal to EfiLoaderCode, EfiLoaderData, EfiRuntimeServicesCode,
@retval EFI_INVALID_PARAMETER Type is not equal to EfiLoaderCode, EfiLoaderData, EfiRuntimeServicesCode,
EfiRuntimeServicesData, EfiBootServicesCode, EfiBootServicesData,
EfiACPIReclaimMemory, EfiReservedMemoryType, or EfiACPIMemoryNVS.
@ -135,6 +504,7 @@ PeiAllocatePages (
OUT EFI_PHYSICAL_ADDRESS *Memory
)
{
EFI_STATUS Status;
PEI_CORE_INSTANCE *PrivateData;
EFI_PEI_HOB_POINTERS Hob;
EFI_PHYSICAL_ADDRESS *FreeMemoryTop;
@ -157,6 +527,16 @@ PeiAllocatePages (
Granularity = DEFAULT_PAGE_ALLOCATION_GRANULARITY;
PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS (PeiServices);
Hob.Raw = PrivateData->HobList.Raw;
if (Hob.Raw == NULL) {
//
// HOB is not initialized yet.
//
return EFI_NOT_AVAILABLE_YET;
}
if (RUNTIME_PAGE_ALLOCATION_GRANULARITY > DEFAULT_PAGE_ALLOCATION_GRANULARITY &&
(MemoryType == EfiACPIReclaimMemory ||
MemoryType == EfiACPIMemoryNVS ||
@ -169,23 +549,13 @@ PeiAllocatePages (
Granularity / SIZE_1KB));
}
PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS (PeiServices);
Hob.Raw = PrivateData->HobList.Raw;
//
// Check if Hob already available
//
if (!PrivateData->PeiMemoryInstalled) {
if (!PrivateData->PeiMemoryInstalled && PrivateData->SwitchStackSignal) {
//
// When PeiInstallMemory is called but temporary memory has *not* been moved to temporary memory,
// When PeiInstallMemory is called but temporary memory has *not* been moved to permanent memory,
// the AllocatePage will depend on the field of PEI_CORE_INSTANCE structure.
//
if (!PrivateData->SwitchStackSignal) {
return EFI_NOT_AVAILABLE_YET;
} else {
FreeMemoryTop = &(PrivateData->FreePhysicalMemoryTop);
FreeMemoryBottom = &(PrivateData->PhysicalMemoryBegin);
}
FreeMemoryTop = &(PrivateData->FreePhysicalMemoryTop);
FreeMemoryBottom = &(PrivateData->PhysicalMemoryBegin);
} else {
FreeMemoryTop = &(Hob.HandoffInformationTable->EfiFreeMemoryTop);
FreeMemoryBottom = &(Hob.HandoffInformationTable->EfiFreeMemoryBottom);
@ -207,7 +577,7 @@ PeiAllocatePages (
// Create a memory allocation HOB to cover
// the pages that we will lose to rounding
//
BuildMemoryAllocationHob (
InternalBuildMemoryAllocationHob (
*(FreeMemoryTop),
Padding & ~(UINTN)EFI_PAGE_MASK,
EfiConventionalMemory
@ -216,18 +586,20 @@ PeiAllocatePages (
//
// Verify that there is sufficient memory to satisfy the allocation.
// For page allocation, the overhead sizeof (EFI_HOB_MEMORY_ALLOCATION) needs to be considered.
//
if ((UINTN) (*FreeMemoryTop - *FreeMemoryBottom) < (UINTN) ALIGN_VALUE (sizeof (EFI_HOB_MEMORY_ALLOCATION), 8)) {
DEBUG ((EFI_D_ERROR, "AllocatePages failed: No space to build memory allocation hob.\n"));
return EFI_OUT_OF_RESOURCES;
}
RemainingPages = (UINTN)(*FreeMemoryTop - *FreeMemoryBottom - ALIGN_VALUE (sizeof (EFI_HOB_MEMORY_ALLOCATION), 8)) >> EFI_PAGE_SHIFT;
RemainingPages = (UINTN)(*FreeMemoryTop - *FreeMemoryBottom) >> EFI_PAGE_SHIFT;
//
// The number of remaining pages needs to be greater than or equal to that of the request pages.
//
Pages = ALIGN_VALUE (Pages, EFI_SIZE_TO_PAGES (Granularity));
if (RemainingPages < Pages) {
//
// Try to find free memory by searching memory allocation HOBs.
//
Status = FindFreeMemoryFromMemoryAllocationHob (MemoryType, Pages, Granularity, Memory);
if (!EFI_ERROR (Status)) {
return Status;
}
DEBUG ((EFI_D_ERROR, "AllocatePages failed: No 0x%lx Pages is available.\n", (UINT64) Pages));
DEBUG ((EFI_D_ERROR, "There is only left 0x%lx pages memory resource to be allocated.\n", (UINT64) RemainingPages));
return EFI_OUT_OF_RESOURCES;
@ -245,7 +617,7 @@ PeiAllocatePages (
//
// Create a memory allocation HOB.
//
BuildMemoryAllocationHob (
InternalBuildMemoryAllocationHob (
*(FreeMemoryTop),
Pages * EFI_PAGE_SIZE,
MemoryType
@ -255,6 +627,141 @@ PeiAllocatePages (
}
}
/**
Mark the memory allocation HOB to be unused(freed) and update *FreeMemoryTop
if MemoryBaseAddress == *FreeMemoryTop.
@param[in] PrivateData Pointer to PeiCore's private data structure.
@param[in, out] MemoryAllocationHobToFree Pointer to memory allocation HOB to be freed.
**/
VOID
FreeMemoryAllocationHob (
IN PEI_CORE_INSTANCE *PrivateData,
IN OUT EFI_HOB_MEMORY_ALLOCATION *MemoryAllocationHobToFree
)
{
EFI_PEI_HOB_POINTERS Hob;
EFI_PHYSICAL_ADDRESS *FreeMemoryTop;
EFI_HOB_MEMORY_ALLOCATION *MemoryAllocationHob;
Hob.Raw = PrivateData->HobList.Raw;
if (!PrivateData->PeiMemoryInstalled && PrivateData->SwitchStackSignal) {
//
// When PeiInstallMemory is called but temporary memory has *not* been moved to permanent memory,
// use the FreePhysicalMemoryTop field of PEI_CORE_INSTANCE structure.
//
FreeMemoryTop = &(PrivateData->FreePhysicalMemoryTop);
} else {
FreeMemoryTop = &(Hob.HandoffInformationTable->EfiFreeMemoryTop);
}
if (MemoryAllocationHobToFree->AllocDescriptor.MemoryBaseAddress == *FreeMemoryTop) {
//
// Update *FreeMemoryTop.
//
*FreeMemoryTop += MemoryAllocationHobToFree->AllocDescriptor.MemoryLength;
//
// Mark the memory allocation HOB to be unused(freed).
//
MemoryAllocationHobToFree->Header.HobType = EFI_HOB_TYPE_UNUSED;
MemoryAllocationHob = NULL;
Hob.Raw = GetFirstHob (EFI_HOB_TYPE_MEMORY_ALLOCATION);
while (Hob.Raw != NULL) {
if ((Hob.MemoryAllocation->AllocDescriptor.MemoryType == EfiConventionalMemory) &&
(Hob.MemoryAllocation->AllocDescriptor.MemoryBaseAddress == *FreeMemoryTop)) {
//
// Found memory allocation HOB that has EfiConventionalMemory MemoryType and
// MemoryBaseAddress == new *FreeMemoryTop.
//
MemoryAllocationHob = (EFI_HOB_MEMORY_ALLOCATION *) Hob.Raw;
break;
}
Hob.Raw = GET_NEXT_HOB (Hob);
Hob.Raw = GetNextHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, Hob.Raw);
}
//
// Free memory allocation HOB iteratively.
//
if (MemoryAllocationHob != NULL) {
FreeMemoryAllocationHob (PrivateData, MemoryAllocationHob);
}
}
}
/**
Frees memory pages.
@param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param[in] Memory The base physical address of the pages to be freed.
@param[in] Pages The number of contiguous 4 KB pages to free.
@retval EFI_SUCCESS The requested pages were freed.
@retval EFI_INVALID_PARAMETER Memory is not a page-aligned address or Pages is invalid.
@retval EFI_NOT_FOUND The requested memory pages were not allocated with
AllocatePages().
**/
EFI_STATUS
EFIAPI
PeiFreePages (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_PHYSICAL_ADDRESS Memory,
IN UINTN Pages
)
{
PEI_CORE_INSTANCE *PrivateData;
UINT64 Bytes;
UINT64 Start;
UINT64 End;
EFI_PEI_HOB_POINTERS Hob;
EFI_HOB_MEMORY_ALLOCATION *MemoryAllocationHob;
Bytes = LShiftU64 (Pages, EFI_PAGE_SHIFT);
Start = Memory;
End = Start + Bytes - 1;
if (Pages == 0 || ((Start & EFI_PAGE_MASK) != 0) || (Start >= End)) {
return EFI_INVALID_PARAMETER;
}
PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS (PeiServices);
Hob.Raw = PrivateData->HobList.Raw;
if (Hob.Raw == NULL) {
//
// HOB is not initialized yet.
//
return EFI_NOT_AVAILABLE_YET;
}
MemoryAllocationHob = NULL;
Hob.Raw = GetFirstHob (EFI_HOB_TYPE_MEMORY_ALLOCATION);
while (Hob.Raw != NULL) {
if ((Hob.MemoryAllocation->AllocDescriptor.MemoryType != EfiConventionalMemory) &&
(Memory >= Hob.MemoryAllocation->AllocDescriptor.MemoryBaseAddress) &&
((Memory + Bytes) <= (Hob.MemoryAllocation->AllocDescriptor.MemoryBaseAddress + Hob.MemoryAllocation->AllocDescriptor.MemoryLength))) {
//
// Found the memory allocation HOB that includes the memory pages to be freed.
//
MemoryAllocationHob = (EFI_HOB_MEMORY_ALLOCATION *) Hob.Raw;
break;
}
Hob.Raw = GET_NEXT_HOB (Hob);
Hob.Raw = GetNextHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, Hob.Raw);
}
if (MemoryAllocationHob != NULL) {
UpdateOrSplitMemoryAllocationHob (MemoryAllocationHob, Memory, Bytes, EfiConventionalMemory);
FreeMemoryAllocationHob (PrivateData, MemoryAllocationHob);
return EFI_SUCCESS;
} else {
return EFI_NOT_FOUND;
}
}
/**
Pool allocation service. Before permanent memory is discoveried, the pool will

89
MdeModulePkg/Core/Pei/PeiMain.h
View File

@ -233,6 +233,10 @@ struct _PEI_CORE_INSTANCE {
BOOLEAN HeapOffsetPositive;
UINTN StackOffset;
BOOLEAN StackOffsetPositive;
//
// Information for migrating memory pages allocated in pre-memory phase.
//
HOLE_MEMORY_DATA MemoryPages;
PEICORE_FUNCTION_POINTER ShadowedPeiCore;
CACHE_SECTION_DATA CacheSection;
//
@ -263,7 +267,7 @@ struct _PEI_CORE_INSTANCE {
//
// Temp Memory Range is not covered by PeiTempMem and Stack.
// Those Memory Range will be migrated into phisical memory.
// Those Memory Range will be migrated into physical memory.
//
HOLE_MEMORY_DATA HoleData[HOLE_MAX_NUMBER];
};
@ -423,7 +427,7 @@ InitializePpiServices (
/**
Migrate the Hob list from the temporary memory stack to PEI installed memory.
Migrate the Hob list from the temporary memory to PEI installed memory.
@param SecCoreData Points to a data structure containing SEC to PEI handoff data, such as the size
and location of temporary RAM, the stack location and the BFV location.
@ -877,30 +881,81 @@ PeiInstallPeiMemory (
);
/**
Migrate memory pages allocated in pre-memory phase.
Copy memory pages at temporary heap top to permanent heap top.
Memory allocation service on permanent memory,
not usable prior to the memory installation.
@param[in] Private Pointer to the private data passed in from caller.
@param[in] TemporaryRamMigrated Temporary memory has been migrated to permanent memory.
**/
VOID
MigrateMemoryPages (
IN PEI_CORE_INSTANCE *Private,
IN BOOLEAN TemporaryRamMigrated
);
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param MemoryType Type of memory to allocate.
@param Pages Number of pages to allocate.
@param Memory Pointer of memory allocated.
/**
Migrate MemoryBaseAddress in memory allocation HOBs
from the temporary memory to PEI installed memory.
@retval EFI_SUCCESS The allocation was successful
@retval EFI_INVALID_PARAMETER Only AllocateAnyAddress is supported.
@retval EFI_NOT_AVAILABLE_YET Called with permanent memory not available
@retval EFI_OUT_OF_RESOURCES There is not enough HOB heap to satisfy the requirement
to allocate the number of pages.
@param[in] PrivateData Pointer to PeiCore's private data structure.
**/
VOID
ConvertMemoryAllocationHobs (
IN PEI_CORE_INSTANCE *PrivateData
);
/**
The purpose of the service is to publish an interface that allows
PEIMs to allocate memory ranges that are managed by the PEI Foundation.
Prior to InstallPeiMemory() being called, PEI will allocate pages from the heap.
After InstallPeiMemory() is called, PEI will allocate pages within the region
of memory provided by InstallPeiMemory() service in a best-effort fashion.
Location-specific allocations are not managed by the PEI foundation code.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param MemoryType The type of memory to allocate.
@param Pages The number of contiguous 4 KB pages to allocate.
@param Memory Pointer to a physical address. On output, the address is set to the base
of the page range that was allocated.
@retval EFI_SUCCESS The memory range was successfully allocated.
@retval EFI_OUT_OF_RESOURCES The pages could not be allocated.
@retval EFI_INVALID_PARAMETER Type is not equal to EfiLoaderCode, EfiLoaderData, EfiRuntimeServicesCode,
EfiRuntimeServicesData, EfiBootServicesCode, EfiBootServicesData,
EfiACPIReclaimMemory, EfiReservedMemoryType, or EfiACPIMemoryNVS.
**/
EFI_STATUS
EFIAPI
PeiAllocatePages (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_MEMORY_TYPE MemoryType,
IN UINTN Pages,
OUT EFI_PHYSICAL_ADDRESS *Memory
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_MEMORY_TYPE MemoryType,
IN UINTN Pages,
OUT EFI_PHYSICAL_ADDRESS *Memory
);
/**
Frees memory pages.
@param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param[in] Memory The base physical address of the pages to be freed.
@param[in] Pages The number of contiguous 4 KB pages to free.
@retval EFI_SUCCESS The requested pages were freed.
@retval EFI_INVALID_PARAMETER Memory is not a page-aligned address or Pages is invalid.
@retval EFI_NOT_FOUND The requested memory pages were not allocated with
AllocatePages().
**/
EFI_STATUS
EFIAPI
PeiFreePages (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_PHYSICAL_ADDRESS Memory,
IN UINTN Pages
);
/**

8
MdeModulePkg/Core/Pei/PeiMain/PeiMain.c
View File

@ -64,7 +64,8 @@ EFI_PEI_SERVICES gPs = {
PeiRegisterForShadow,
PeiFfsFindSectionData3,
PeiFfsGetFileInfo2,
PeiResetSystem2
PeiResetSystem2,
PeiFreePages,
};
/**
@ -231,6 +232,11 @@ PeiCore (
HandoffInformationTable->EfiFreeMemoryTop = OldCoreData->FreePhysicalMemoryTop;
HandoffInformationTable->EfiFreeMemoryBottom = HandoffInformationTable->EfiEndOfHobList + sizeof (EFI_HOB_GENERIC_HEADER);
//
// We need convert MemoryBaseAddress in memory allocation HOBs
//
ConvertMemoryAllocationHobs (OldCoreData);
//
// We need convert the PPI descriptor's pointer
//

16
MdeModulePkg/Core/Pei/Ppi/Ppi.c
View File

@ -103,7 +103,7 @@ ConvertSinglePpiPointer (
/**
Migrate PPI Pointers from the temporary memory stack to PEI installed memory.
Migrate PPI Pointers from the temporary memory to PEI installed memory.
@param SecCoreData Points to a data structure containing SEC to PEI handoff data, such as the size
and location of temporary RAM, the stack location and the BFV location.
@ -121,6 +121,20 @@ ConvertPpiPointers (
for (Index = 0; Index < PcdGet32 (PcdPeiCoreMaxPpiSupported); Index++) {
if (Index < PrivateData->PpiData.PpiListEnd || Index > PrivateData->PpiData.NotifyListEnd) {
if (PrivateData->MemoryPages.Size != 0) {
//
// Convert PPI pointer in old memory pages
// It needs to be done before Convert PPI pointer in old Heap
//
ConvertSinglePpiPointer (
&PrivateData->PpiData.PpiListPtrs[Index],
(UINTN)PrivateData->MemoryPages.Base,
(UINTN)PrivateData->MemoryPages.Base + PrivateData->MemoryPages.Size,
PrivateData->MemoryPages.Offset,
PrivateData->MemoryPages.OffsetPositive
);
}
//
// Convert PPI pointer in old Heap
//