MdeModulePkg: Move Some DXE MAT Logic to ImagePropertiesRecordLib

Move some DXE MAT logic to ImagePropertiesRecordLib to consolidate
code and enable unit testability.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Dandan Bi <dandan.bi@intel.com>
Signed-off-by: Taylor Beebe <taylor.d.beebe@gmail.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>

7 files changed, 947 insertions, 805 deletions

diff --git a/MdeModulePkg/Core/Dxe/DxeMain.h b/MdeModulePkg/Core/Dxe/DxeMain.h
index 43daa037be..86a7be2f51 100644
--- a/MdeModulePkg/Core/Dxe/DxeMain.h
+++ b/MdeModulePkg/Core/Dxe/DxeMain.h
@@ -228,26 +228,6 @@ typedef struct {
 #define LOADED_IMAGE_PRIVATE_DATA_FROM_THIS(a) \

           CR(a, LOADED_IMAGE_PRIVATE_DATA, Info, LOADED_IMAGE_PRIVATE_DATA_SIGNATURE)

 

-#define IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE  SIGNATURE_32 ('I','P','R','C')

-

-typedef struct {

-  UINT32                  Signature;

-  LIST_ENTRY              Link;

-  EFI_PHYSICAL_ADDRESS    CodeSegmentBase;

-  UINT64                  CodeSegmentSize;

-} IMAGE_PROPERTIES_RECORD_CODE_SECTION;

-

-#define IMAGE_PROPERTIES_RECORD_SIGNATURE  SIGNATURE_32 ('I','P','R','D')

-

-typedef struct {

-  UINT32                  Signature;

-  LIST_ENTRY              Link;

-  EFI_PHYSICAL_ADDRESS    ImageBase;

-  UINT64                  ImageSize;

-  UINTN                   CodeSegmentCount;

-  LIST_ENTRY              CodeSegmentList;

-} IMAGE_PROPERTIES_RECORD;

-

 //

 // DXE Core Global Variables

 //

diff --git a/MdeModulePkg/Core/Dxe/DxeMain.inf b/MdeModulePkg/Core/Dxe/DxeMain.inf
index 16871f2021..090970aec6 100644
--- a/MdeModulePkg/Core/Dxe/DxeMain.inf
+++ b/MdeModulePkg/Core/Dxe/DxeMain.inf
@@ -94,6 +94,7 @@
   DebugAgentLib

   CpuExceptionHandlerLib

   PcdLib

+  ImagePropertiesRecordLib

 

 [Guids]

   gEfiEventMemoryMapChangeGuid                  ## PRODUCES             ## Event

diff --git a/MdeModulePkg/Core/Dxe/Misc/MemoryAttributesTable.c b/MdeModulePkg/Core/Dxe/Misc/MemoryAttributesTable.c
index 64b0aa1ff5..51630f504e 100644
--- a/MdeModulePkg/Core/Dxe/Misc/MemoryAttributesTable.c
+++ b/MdeModulePkg/Core/Dxe/Misc/MemoryAttributesTable.c
@@ -14,6 +14,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #include <Library/DxeServicesTableLib.h>

 #include <Library/DebugLib.h>

 #include <Library/UefiLib.h>

+#include <Library/ImagePropertiesRecordLib.h>

 

 #include <Guid/EventGroup.h>

 

@@ -334,45 +335,6 @@ CoreInitializeMemoryAttributesTable (
 //

 

 /**

-  Converts a number of EFI_PAGEs to a size in bytes.

-

-  NOTE: Do not use EFI_PAGES_TO_SIZE because it handles UINTN only.

-

-  @param  Pages     The number of EFI_PAGES.

-

-  @return  The number of bytes associated with the number of EFI_PAGEs specified

-           by Pages.

-**/

-STATIC

-UINT64

-EfiPagesToSize (

-  IN UINT64  Pages

-  )

-{

-  return LShiftU64 (Pages, EFI_PAGE_SHIFT);

-}

-

-/**

-  Converts a size, in bytes, to a number of EFI_PAGESs.

-

-  NOTE: Do not use EFI_SIZE_TO_PAGES because it handles UINTN only.

-

-  @param  Size      A size in bytes.

-

-  @return  The number of EFI_PAGESs associated with the number of bytes specified

-           by Size.

-

-**/

-STATIC

-UINT64

-EfiSizeToPages (

-  IN UINT64  Size

-  )

-{

-  return RShiftU64 (Size, EFI_PAGE_SHIFT) + ((((UINTN)Size) & EFI_PAGE_MASK) ? 1 : 0);

-}

-

-/**

   Acquire memory lock on mMemoryAttributesTableLock.

 **/

 STATIC

@@ -397,48 +359,6 @@ CoreReleasemMemoryAttributesTableLock (
 }

 

 /**

-  Sort memory map entries based upon PhysicalStart, from low to high.

-

-  @param  MemoryMap              A pointer to the buffer in which firmware places

-                                 the current memory map.

-  @param  MemoryMapSize          Size, in bytes, of the MemoryMap buffer.

-  @param  DescriptorSize         Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.

-**/

-STATIC

-VOID

-SortMemoryMap (

-  IN OUT EFI_MEMORY_DESCRIPTOR  *MemoryMap,

-  IN UINTN                      MemoryMapSize,

-  IN UINTN                      DescriptorSize

-  )

-{

-  EFI_MEMORY_DESCRIPTOR  *MemoryMapEntry;

-  EFI_MEMORY_DESCRIPTOR  *NextMemoryMapEntry;

-  EFI_MEMORY_DESCRIPTOR  *MemoryMapEnd;

-  EFI_MEMORY_DESCRIPTOR  TempMemoryMap;

-

-  MemoryMapEntry     = MemoryMap;

-  NextMemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (MemoryMapEntry, DescriptorSize);

-  MemoryMapEnd       = (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)MemoryMap + MemoryMapSize);

-  while (MemoryMapEntry < MemoryMapEnd) {

-    while (NextMemoryMapEntry < MemoryMapEnd) {

-      if (MemoryMapEntry->PhysicalStart > NextMemoryMapEntry->PhysicalStart) {

-        CopyMem (&TempMemoryMap, MemoryMapEntry, sizeof (EFI_MEMORY_DESCRIPTOR));

-        CopyMem (MemoryMapEntry, NextMemoryMapEntry, sizeof (EFI_MEMORY_DESCRIPTOR));

-        CopyMem (NextMemoryMapEntry, &TempMemoryMap, sizeof (EFI_MEMORY_DESCRIPTOR));

-      }

-

-      NextMemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (NextMemoryMapEntry, DescriptorSize);

-    }

-

-    MemoryMapEntry     = NEXT_MEMORY_DESCRIPTOR (MemoryMapEntry, DescriptorSize);

-    NextMemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (MemoryMapEntry, DescriptorSize);

-  }

-

-  return;

-}

-

-/**

   Merge continous memory map entries whose have same attributes.

 

   @param  MemoryMap              A pointer to the buffer in which firmware places

@@ -471,7 +391,7 @@ MergeMemoryMap (
 

     do {

       MergeGuardPages (NewMemoryMapEntry, NextMemoryMapEntry->PhysicalStart);

-      MemoryBlockLength = (UINT64)(EfiPagesToSize (NewMemoryMapEntry->NumberOfPages));

+      MemoryBlockLength = LShiftU64 (NewMemoryMapEntry->NumberOfPages, EFI_PAGE_SHIFT);

       if (((UINTN)NextMemoryMapEntry < (UINTN)MemoryMapEnd) &&

           (NewMemoryMapEntry->Type == NextMemoryMapEntry->Type) &&

           (NewMemoryMapEntry->Attribute == NextMemoryMapEntry->Attribute) &&

@@ -539,434 +459,6 @@ EnforceMemoryMapAttribute (
 }

 

 /**

-  Return the first image record, whose [ImageBase, ImageSize] covered by [Buffer, Length].

-

-  @param Buffer           Start Address

-  @param Length           Address length

-  @param ImageRecordList  Image record list

-

-  @return first image record covered by [buffer, length]

-**/

-STATIC

-IMAGE_PROPERTIES_RECORD *

-GetImageRecordByAddress (

-  IN EFI_PHYSICAL_ADDRESS  Buffer,

-  IN UINT64                Length,

-  IN LIST_ENTRY            *ImageRecordList

-  )

-{

-  IMAGE_PROPERTIES_RECORD  *ImageRecord;

-  LIST_ENTRY               *ImageRecordLink;

-

-  for (ImageRecordLink = ImageRecordList->ForwardLink;

-       ImageRecordLink != ImageRecordList;

-       ImageRecordLink = ImageRecordLink->ForwardLink)

-  {

-    ImageRecord = CR (

-                    ImageRecordLink,

-                    IMAGE_PROPERTIES_RECORD,

-                    Link,

-                    IMAGE_PROPERTIES_RECORD_SIGNATURE

-                    );

-

-    if ((Buffer <= ImageRecord->ImageBase) &&

-        (Buffer + Length >= ImageRecord->ImageBase + ImageRecord->ImageSize))

-    {

-      return ImageRecord;

-    }

-  }

-

-  return NULL;

-}

-

-/**

-  Set the memory map to new entries, according to one old entry,

-  based upon PE code section and data section in image record

-

-  @param  ImageRecord            An image record whose [ImageBase, ImageSize] covered

-                                 by old memory map entry.

-  @param  NewRecord              A pointer to several new memory map entries.

-                                 The caller gurantee the buffer size be 1 +

-                                 (SplitRecordCount * DescriptorSize) calculated

-                                 below.

-  @param  OldRecord              A pointer to one old memory map entry.

-  @param  DescriptorSize         Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.

-**/

-STATIC

-UINTN

-SetNewRecord (

-  IN IMAGE_PROPERTIES_RECORD    *ImageRecord,

-  IN OUT EFI_MEMORY_DESCRIPTOR  *NewRecord,

-  IN EFI_MEMORY_DESCRIPTOR      *OldRecord,

-  IN UINTN                      DescriptorSize

-  )

-{

-  EFI_MEMORY_DESCRIPTOR                 TempRecord;

-  IMAGE_PROPERTIES_RECORD_CODE_SECTION  *ImageRecordCodeSection;

-  LIST_ENTRY                            *ImageRecordCodeSectionLink;

-  LIST_ENTRY                            *ImageRecordCodeSectionEndLink;

-  LIST_ENTRY                            *ImageRecordCodeSectionList;

-  UINTN                                 NewRecordCount;

-  UINT64                                PhysicalEnd;

-  UINT64                                ImageEnd;

-

-  CopyMem (&TempRecord, OldRecord, sizeof (EFI_MEMORY_DESCRIPTOR));

-  PhysicalEnd    = TempRecord.PhysicalStart + EfiPagesToSize (TempRecord.NumberOfPages);

-  NewRecordCount = 0;

-

-  ImageRecordCodeSectionList = &ImageRecord->CodeSegmentList;

-

-  ImageRecordCodeSectionLink    = ImageRecordCodeSectionList->ForwardLink;

-  ImageRecordCodeSectionEndLink = ImageRecordCodeSectionList;

-  while (ImageRecordCodeSectionLink != ImageRecordCodeSectionEndLink) {

-    ImageRecordCodeSection = CR (

-                               ImageRecordCodeSectionLink,

-                               IMAGE_PROPERTIES_RECORD_CODE_SECTION,

-                               Link,

-                               IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE

-                               );

-    ImageRecordCodeSectionLink = ImageRecordCodeSectionLink->ForwardLink;

-

-    if (TempRecord.PhysicalStart <= ImageRecordCodeSection->CodeSegmentBase) {

-      //

-      // DATA

-      //

-      NewRecord->Type          = TempRecord.Type;

-      NewRecord->PhysicalStart = TempRecord.PhysicalStart;

-      NewRecord->VirtualStart  = 0;

-      NewRecord->NumberOfPages = EfiSizeToPages (ImageRecordCodeSection->CodeSegmentBase - NewRecord->PhysicalStart);

-      NewRecord->Attribute     = TempRecord.Attribute | EFI_MEMORY_XP;

-      if (NewRecord->NumberOfPages != 0) {

-        NewRecord = NEXT_MEMORY_DESCRIPTOR (NewRecord, DescriptorSize);

-        NewRecordCount++;

-      }

-

-      //

-      // CODE

-      //

-      NewRecord->Type          = TempRecord.Type;

-      NewRecord->PhysicalStart = ImageRecordCodeSection->CodeSegmentBase;

-      NewRecord->VirtualStart  = 0;

-      NewRecord->NumberOfPages = EfiSizeToPages (ImageRecordCodeSection->CodeSegmentSize);

-      NewRecord->Attribute     = (TempRecord.Attribute & (~EFI_MEMORY_XP)) | EFI_MEMORY_RO;

-      if (NewRecord->NumberOfPages != 0) {

-        NewRecord = NEXT_MEMORY_DESCRIPTOR (NewRecord, DescriptorSize);

-        NewRecordCount++;

-      }

-

-      TempRecord.PhysicalStart = ImageRecordCodeSection->CodeSegmentBase + EfiPagesToSize (EfiSizeToPages (ImageRecordCodeSection->CodeSegmentSize));

-      TempRecord.NumberOfPages = EfiSizeToPages (PhysicalEnd - TempRecord.PhysicalStart);

-      if (TempRecord.NumberOfPages == 0) {

-        break;

-      }

-    }

-  }

-

-  ImageEnd = ImageRecord->ImageBase + ImageRecord->ImageSize;

-

-  //

-  // Final DATA

-  //

-  if (TempRecord.PhysicalStart < ImageEnd) {

-    NewRecord->Type          = TempRecord.Type;

-    NewRecord->PhysicalStart = TempRecord.PhysicalStart;

-    NewRecord->VirtualStart  = 0;

-    NewRecord->NumberOfPages = EfiSizeToPages (ImageEnd - TempRecord.PhysicalStart);

-    NewRecord->Attribute     = TempRecord.Attribute | EFI_MEMORY_XP;

-    NewRecordCount++;

-  }

-

-  return NewRecordCount;

-}

-

-/**

-  Return the max number of new splitted entries, according to one old entry,

-  based upon PE code section and data section.

-

-  @param  OldRecord              A pointer to one old memory map entry.

-

-  @retval  0 no entry need to be splitted.

-  @return  the max number of new splitted entries

-**/

-STATIC

-UINTN

-GetMaxSplitRecordCount (

-  IN EFI_MEMORY_DESCRIPTOR  *OldRecord,

-  IN LIST_ENTRY             *ImageRecordList

-  )

-{

-  IMAGE_PROPERTIES_RECORD  *ImageRecord;

-  UINTN                    SplitRecordCount;

-  UINT64                   PhysicalStart;

-  UINT64                   PhysicalEnd;

-

-  SplitRecordCount = 0;

-  PhysicalStart    = OldRecord->PhysicalStart;

-  PhysicalEnd      = OldRecord->PhysicalStart + EfiPagesToSize (OldRecord->NumberOfPages);

-

-  do {

-    ImageRecord = GetImageRecordByAddress (PhysicalStart, PhysicalEnd - PhysicalStart, ImageRecordList);

-    if (ImageRecord == NULL) {

-      break;

-    }

-

-    SplitRecordCount += (2 * ImageRecord->CodeSegmentCount + 1);

-    PhysicalStart     = ImageRecord->ImageBase + ImageRecord->ImageSize;

-  } while ((ImageRecord != NULL) && (PhysicalStart < PhysicalEnd));

-

-  if (SplitRecordCount != 0) {

-    SplitRecordCount--;

-  }

-

-  return SplitRecordCount;

-}

-

-/**

-  Split the memory map to new entries, according to one old entry,

-  based upon PE code section and data section.

-

-  @param        OldRecord             A pointer to one old memory map entry.

-  @param        NewRecord             A pointer to several new memory map entries.

-                                      The caller gurantee the buffer size be 1 +

-                                      (SplitRecordCount * DescriptorSize) calculated

-                                      below.

-  @param        MaxSplitRecordCount   The max number of splitted entries

-  @param        DescriptorSize        Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.

-  @param        ImageRecordList       A list of IMAGE_PROPERTIES_RECORD entries used when searching

-                                      for an image record contained by the memory range described in

-                                      the existing EFI memory map descriptor OldRecord

-

-  @retval  0 no entry is splitted.

-  @return  the real number of splitted record.

-**/

-STATIC

-UINTN

-SplitRecord (

-  IN EFI_MEMORY_DESCRIPTOR      *OldRecord,

-  IN OUT EFI_MEMORY_DESCRIPTOR  *NewRecord,

-  IN UINTN                      MaxSplitRecordCount,

-  IN UINTN                      DescriptorSize,

-  IN LIST_ENTRY                 *ImageRecordList

-  )

-{

-  EFI_MEMORY_DESCRIPTOR    TempRecord;

-  IMAGE_PROPERTIES_RECORD  *ImageRecord;

-  IMAGE_PROPERTIES_RECORD  *NewImageRecord;

-  UINT64                   PhysicalStart;

-  UINT64                   PhysicalEnd;

-  UINTN                    NewRecordCount;

-  UINTN                    TotalNewRecordCount;

-  BOOLEAN                  IsLastRecordData;

-

-  if (MaxSplitRecordCount == 0) {

-    CopyMem (NewRecord, OldRecord, DescriptorSize);

-    return 0;

-  }

-

-  TotalNewRecordCount = 0;

-

-  //

-  // Override previous record

-  //

-  CopyMem (&TempRecord, OldRecord, sizeof (EFI_MEMORY_DESCRIPTOR));

-  PhysicalStart = TempRecord.PhysicalStart;

-  PhysicalEnd   = TempRecord.PhysicalStart + EfiPagesToSize (TempRecord.NumberOfPages);

-

-  ImageRecord = NULL;

-  do {

-    NewImageRecord = GetImageRecordByAddress (PhysicalStart, PhysicalEnd - PhysicalStart, ImageRecordList);

-    if (NewImageRecord == NULL) {

-      //

-      // No more image covered by this range, stop

-      //

-      if ((PhysicalEnd > PhysicalStart) && (ImageRecord != NULL)) {

-        //

-        // If this is still address in this record, need record.

-        //

-        NewRecord        = PREVIOUS_MEMORY_DESCRIPTOR (NewRecord, DescriptorSize);

-        IsLastRecordData = FALSE;

-        if ((NewRecord->Attribute & EFI_MEMORY_XP) != 0) {

-          IsLastRecordData = TRUE;

-        }

-

-        if (IsLastRecordData) {

-          //

-          // Last record is DATA, just merge it.

-          //

-          NewRecord->NumberOfPages = EfiSizeToPages (PhysicalEnd - NewRecord->PhysicalStart);

-        } else {

-          //

-          // Last record is CODE, create a new DATA entry.

-          //

-          NewRecord                = NEXT_MEMORY_DESCRIPTOR (NewRecord, DescriptorSize);

-          NewRecord->Type          = TempRecord.Type;

-          NewRecord->PhysicalStart = TempRecord.PhysicalStart;

-          NewRecord->VirtualStart  = 0;

-          NewRecord->NumberOfPages = TempRecord.NumberOfPages;

-          NewRecord->Attribute     = TempRecord.Attribute | EFI_MEMORY_XP;

-          TotalNewRecordCount++;

-        }

-      }

-

-      break;

-    }

-

-    ImageRecord = NewImageRecord;

-

-    //

-    // Set new record

-    //

-    NewRecordCount       = SetNewRecord (ImageRecord, NewRecord, &TempRecord, DescriptorSize);

-    TotalNewRecordCount += NewRecordCount;

-    NewRecord            = (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)NewRecord + NewRecordCount * DescriptorSize);

-

-    //

-    // Update PhysicalStart, in order to exclude the image buffer already splitted.

-    //

-    PhysicalStart            = ImageRecord->ImageBase + ImageRecord->ImageSize;

-    TempRecord.PhysicalStart = PhysicalStart;

-    TempRecord.NumberOfPages = EfiSizeToPages (PhysicalEnd - PhysicalStart);

-  } while ((ImageRecord != NULL) && (PhysicalStart < PhysicalEnd));

-

-  //

-  // The logic in function SplitTable() ensures that TotalNewRecordCount will not be zero if the

-  // code reaches here.

-  //

-  ASSERT (TotalNewRecordCount != 0);

-  return TotalNewRecordCount - 1;

-}

-

-/**

-  Split the original memory map, and add more entries to describe PE code section and data section.

-  This function will set EfiRuntimeServicesData to be EFI_MEMORY_XP.

-  This function will merge entries with same attributes finally.

-

-  NOTE: It assumes PE code/data section are page aligned.

-  NOTE: It assumes enough entry is prepared for new memory map.

-

-  Split table:

-   +---------------+

-   | Record X      |

-   +---------------+

-   | Record RtCode |

-   +---------------+

-   | Record Y      |

-   +---------------+

-   ==>

-   +---------------+

-   | Record X      |

-   +---------------+ ----

-   | Record RtData |     |

-   +---------------+     |

-   | Record RtCode |     |-> PE/COFF1

-   +---------------+     |

-   | Record RtData |     |

-   +---------------+ ----

-   | Record RtData |     |

-   +---------------+     |

-   | Record RtCode |     |-> PE/COFF2

-   +---------------+     |

-   | Record RtData |     |

-   +---------------+ ----

-   | Record Y      |

-   +---------------+

-

-  @param  MemoryMapSize                   A pointer to the size, in bytes, of the

-                                          MemoryMap buffer. On input, this is the size of

-                                          old MemoryMap before split. The actual buffer

-                                          size of MemoryMap is MemoryMapSize +

-                                          (AdditionalRecordCount * DescriptorSize) calculated

-                                          below. On output, it is the size of new MemoryMap

-                                          after split.

-  @param  MemoryMap                       A pointer to the buffer in which firmware places

-                                          the current memory map.

-  @param  DescriptorSize                  Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.

-  @param  ImageRecordList                 A list of IMAGE_PROPERTIES_RECORD entries used when searching

-                                          for an image record contained by the memory range described in

-                                          EFI memory map descriptors.

-  @param  NumberOfAdditionalDescriptors   The number of unused descriptors at the end of the input MemoryMap.

-**/

-STATIC

-VOID

-SplitTable (

-  IN OUT UINTN                  *MemoryMapSize,

-  IN OUT EFI_MEMORY_DESCRIPTOR  *MemoryMap,

-  IN     UINTN                  DescriptorSize,

-  IN     LIST_ENTRY             *ImageRecordList,

-  IN     UINTN                  NumberOfAdditionalDescriptors

-  )

-{

-  INTN   IndexOld;

-  INTN   IndexNew;

-  UINTN  MaxSplitRecordCount;

-  UINTN  RealSplitRecordCount;

-  UINTN  TotalSplitRecordCount;

-

-  TotalSplitRecordCount = 0;

-  //

-  // Let old record point to end of valid MemoryMap buffer.

-  //

-  IndexOld = ((*MemoryMapSize) / DescriptorSize) - 1;

-  //

-  // Let new record point to end of full MemoryMap buffer.

-  //

-  IndexNew = ((*MemoryMapSize) / DescriptorSize) - 1 + NumberOfAdditionalDescriptors;

-  for ( ; IndexOld >= 0; IndexOld--) {

-    MaxSplitRecordCount = GetMaxSplitRecordCount ((EFI_MEMORY_DESCRIPTOR *)((UINT8 *)MemoryMap + IndexOld * DescriptorSize), ImageRecordList);

-    //

-    // Split this MemoryMap record

-    //

-    IndexNew            -= MaxSplitRecordCount;

-    RealSplitRecordCount = SplitRecord (

-                             (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)MemoryMap + IndexOld * DescriptorSize),

-                             (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)MemoryMap + IndexNew * DescriptorSize),

-                             MaxSplitRecordCount,

-                             DescriptorSize,

-                             ImageRecordList

-                             );

-    //

-    // Adjust IndexNew according to real split.

-    //

-    CopyMem (

-      ((UINT8 *)MemoryMap + (IndexNew + MaxSplitRecordCount - RealSplitRecordCount) * DescriptorSize),

-      ((UINT8 *)MemoryMap + IndexNew * DescriptorSize),

-      RealSplitRecordCount * DescriptorSize

-      );

-    IndexNew               = IndexNew + MaxSplitRecordCount - RealSplitRecordCount;

-    TotalSplitRecordCount += RealSplitRecordCount;

-    IndexNew--;

-  }

-

-  //

-  // Move all records to the beginning.

-  //

-  CopyMem (

-    MemoryMap,

-    (UINT8 *)MemoryMap + (NumberOfAdditionalDescriptors - TotalSplitRecordCount) * DescriptorSize,

-    (*MemoryMapSize) + TotalSplitRecordCount * DescriptorSize

-    );

-

-  *MemoryMapSize = (*MemoryMapSize) + DescriptorSize * TotalSplitRecordCount;

-

-  //

-  // Sort from low to high (Just in case)

-  //

-  SortMemoryMap (MemoryMap, *MemoryMapSize, DescriptorSize);

-

-  //

-  // Set RuntimeData to XP

-  //

-  EnforceMemoryMapAttribute (MemoryMap, *MemoryMapSize, DescriptorSize);

-

-  //

-  // Merge same type to save entry size

-  //

-  MergeMemoryMap (MemoryMap, MemoryMapSize, DescriptorSize);

-

-  return;

-}

-

-/**

   This function for GetMemoryMap() with properties table capability.

 

   It calls original GetMemoryMap() to get the original memory map information. Then

@@ -1044,6 +536,16 @@ CoreGetMemoryMapWithSeparatedImageSection (
       // Split PE code/data

       //

       SplitTable (MemoryMapSize, MemoryMap, *DescriptorSize, &mImagePropertiesPrivateData.ImageRecordList, AdditionalRecordCount);

+

+      //

+      // Set RuntimeData to XP

+      //

+      EnforceMemoryMapAttribute (MemoryMap, *MemoryMapSize, *DescriptorSize);

+

+      //

+      // Merge same type to save entry size

+      //

+      MergeMemoryMap (MemoryMap, MemoryMapSize, *DescriptorSize);

     }

   }

 

@@ -1075,217 +577,6 @@ SetMemoryAttributesTableSectionAlignment (
 }

 

 /**

-  Swap two code sections in image record.

-

-  @param  FirstImageRecordCodeSection    first code section in image record

-  @param  SecondImageRecordCodeSection   second code section in image record

-**/

-STATIC

-VOID

-SwapImageRecordCodeSection (

-  IN IMAGE_PROPERTIES_RECORD_CODE_SECTION  *FirstImageRecordCodeSection,

-  IN IMAGE_PROPERTIES_RECORD_CODE_SECTION  *SecondImageRecordCodeSection

-  )

-{

-  IMAGE_PROPERTIES_RECORD_CODE_SECTION  TempImageRecordCodeSection;

-

-  TempImageRecordCodeSection.CodeSegmentBase = FirstImageRecordCodeSection->CodeSegmentBase;

-  TempImageRecordCodeSection.CodeSegmentSize = FirstImageRecordCodeSection->CodeSegmentSize;

-

-  FirstImageRecordCodeSection->CodeSegmentBase = SecondImageRecordCodeSection->CodeSegmentBase;

-  FirstImageRecordCodeSection->CodeSegmentSize = SecondImageRecordCodeSection->CodeSegmentSize;

-

-  SecondImageRecordCodeSection->CodeSegmentBase = TempImageRecordCodeSection.CodeSegmentBase;

-  SecondImageRecordCodeSection->CodeSegmentSize = TempImageRecordCodeSection.CodeSegmentSize;

-}

-

-/**

-  Sort code section in image record, based upon CodeSegmentBase from low to high.

-

-  @param  ImageRecord    image record to be sorted

-**/

-VOID

-SortImageRecordCodeSection (

-  IN IMAGE_PROPERTIES_RECORD  *ImageRecord

-  )

-{

-  IMAGE_PROPERTIES_RECORD_CODE_SECTION  *ImageRecordCodeSection;

-  IMAGE_PROPERTIES_RECORD_CODE_SECTION  *NextImageRecordCodeSection;

-  LIST_ENTRY                            *ImageRecordCodeSectionLink;

-  LIST_ENTRY                            *NextImageRecordCodeSectionLink;

-  LIST_ENTRY                            *ImageRecordCodeSectionEndLink;

-  LIST_ENTRY                            *ImageRecordCodeSectionList;

-

-  ImageRecordCodeSectionList = &ImageRecord->CodeSegmentList;

-

-  ImageRecordCodeSectionLink     = ImageRecordCodeSectionList->ForwardLink;

-  NextImageRecordCodeSectionLink = ImageRecordCodeSectionLink->ForwardLink;

-  ImageRecordCodeSectionEndLink  = ImageRecordCodeSectionList;

-  while (ImageRecordCodeSectionLink != ImageRecordCodeSectionEndLink) {

-    ImageRecordCodeSection = CR (

-                               ImageRecordCodeSectionLink,

-                               IMAGE_PROPERTIES_RECORD_CODE_SECTION,

-                               Link,

-                               IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE

-                               );

-    while (NextImageRecordCodeSectionLink != ImageRecordCodeSectionEndLink) {

-      NextImageRecordCodeSection = CR (

-                                     NextImageRecordCodeSectionLink,

-                                     IMAGE_PROPERTIES_RECORD_CODE_SECTION,

-                                     Link,

-                                     IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE

-                                     );

-      if (ImageRecordCodeSection->CodeSegmentBase > NextImageRecordCodeSection->CodeSegmentBase) {

-        SwapImageRecordCodeSection (ImageRecordCodeSection, NextImageRecordCodeSection);

-      }

-

-      NextImageRecordCodeSectionLink = NextImageRecordCodeSectionLink->ForwardLink;

-    }

-

-    ImageRecordCodeSectionLink     = ImageRecordCodeSectionLink->ForwardLink;

-    NextImageRecordCodeSectionLink = ImageRecordCodeSectionLink->ForwardLink;

-  }

-}

-

-/**

-  Check if code section in image record is valid.

-

-  @param  ImageRecord    image record to be checked

-

-  @retval TRUE  image record is valid

-  @retval FALSE image record is invalid

-**/

-BOOLEAN

-IsImageRecordCodeSectionValid (

-  IN IMAGE_PROPERTIES_RECORD  *ImageRecord

-  )

-{

-  IMAGE_PROPERTIES_RECORD_CODE_SECTION  *ImageRecordCodeSection;

-  IMAGE_PROPERTIES_RECORD_CODE_SECTION  *LastImageRecordCodeSection;

-  LIST_ENTRY                            *ImageRecordCodeSectionLink;

-  LIST_ENTRY                            *ImageRecordCodeSectionEndLink;

-  LIST_ENTRY                            *ImageRecordCodeSectionList;

-

-  DEBUG ((DEBUG_VERBOSE, "ImageCode SegmentCount - 0x%x\n", ImageRecord->CodeSegmentCount));

-

-  ImageRecordCodeSectionList = &ImageRecord->CodeSegmentList;

-

-  ImageRecordCodeSectionLink    = ImageRecordCodeSectionList->ForwardLink;

-  ImageRecordCodeSectionEndLink = ImageRecordCodeSectionList;

-  LastImageRecordCodeSection    = NULL;

-  while (ImageRecordCodeSectionLink != ImageRecordCodeSectionEndLink) {

-    ImageRecordCodeSection = CR (

-                               ImageRecordCodeSectionLink,

-                               IMAGE_PROPERTIES_RECORD_CODE_SECTION,

-                               Link,

-                               IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE

-                               );

-    if (ImageRecordCodeSection->CodeSegmentSize == 0) {

-      return FALSE;

-    }

-

-    if (ImageRecordCodeSection->CodeSegmentBase < ImageRecord->ImageBase) {

-      return FALSE;

-    }

-

-    if (ImageRecordCodeSection->CodeSegmentBase >= MAX_ADDRESS - ImageRecordCodeSection->CodeSegmentSize) {

-      return FALSE;

-    }

-

-    if ((ImageRecordCodeSection->CodeSegmentBase + ImageRecordCodeSection->CodeSegmentSize) > (ImageRecord->ImageBase + ImageRecord->ImageSize)) {

-      return FALSE;

-    }

-

-    if (LastImageRecordCodeSection != NULL) {

-      if ((LastImageRecordCodeSection->CodeSegmentBase + LastImageRecordCodeSection->CodeSegmentSize) > ImageRecordCodeSection->CodeSegmentBase) {

-        return FALSE;

-      }

-    }

-

-    LastImageRecordCodeSection = ImageRecordCodeSection;

-    ImageRecordCodeSectionLink = ImageRecordCodeSectionLink->ForwardLink;

-  }

-

-  return TRUE;

-}

-

-/**

-  Swap two image records.

-

-  @param  FirstImageRecord   first image record.

-  @param  SecondImageRecord  second image record.

-**/

-STATIC

-VOID

-SwapImageRecord (

-  IN IMAGE_PROPERTIES_RECORD  *FirstImageRecord,

-  IN IMAGE_PROPERTIES_RECORD  *SecondImageRecord

-  )

-{

-  IMAGE_PROPERTIES_RECORD  TempImageRecord;

-

-  TempImageRecord.ImageBase        = FirstImageRecord->ImageBase;

-  TempImageRecord.ImageSize        = FirstImageRecord->ImageSize;

-  TempImageRecord.CodeSegmentCount = FirstImageRecord->CodeSegmentCount;

-

-  FirstImageRecord->ImageBase        = SecondImageRecord->ImageBase;

-  FirstImageRecord->ImageSize        = SecondImageRecord->ImageSize;

-  FirstImageRecord->CodeSegmentCount = SecondImageRecord->CodeSegmentCount;

-

-  SecondImageRecord->ImageBase        = TempImageRecord.ImageBase;

-  SecondImageRecord->ImageSize        = TempImageRecord.ImageSize;

-  SecondImageRecord->CodeSegmentCount = TempImageRecord.CodeSegmentCount;

-

-  SwapListEntries (&FirstImageRecord->CodeSegmentList, &SecondImageRecord->CodeSegmentList);

-}

-

-/**

-  Sort image record based upon the ImageBase from low to high.

-

-  @param ImageRecordList    Image record list to be sorted

-**/

-STATIC

-VOID

-SortImageRecord (

-  IN LIST_ENTRY  *ImageRecordList

-  )

-{

-  IMAGE_PROPERTIES_RECORD  *ImageRecord;

-  IMAGE_PROPERTIES_RECORD  *NextImageRecord;

-  LIST_ENTRY               *ImageRecordLink;

-  LIST_ENTRY               *NextImageRecordLink;

-  LIST_ENTRY               *ImageRecordEndLink;

-

-  ImageRecordLink     = ImageRecordList->ForwardLink;

-  NextImageRecordLink = ImageRecordLink->ForwardLink;

-  ImageRecordEndLink  = ImageRecordList;

-  while (ImageRecordLink != ImageRecordEndLink) {

-    ImageRecord = CR (

-                    ImageRecordLink,

-                    IMAGE_PROPERTIES_RECORD,

-                    Link,

-                    IMAGE_PROPERTIES_RECORD_SIGNATURE

-                    );

-    while (NextImageRecordLink != ImageRecordEndLink) {

-      NextImageRecord = CR (

-                          NextImageRecordLink,

-                          IMAGE_PROPERTIES_RECORD,

-                          Link,

-                          IMAGE_PROPERTIES_RECORD_SIGNATURE

-                          );

-      if (ImageRecord->ImageBase > NextImageRecord->ImageBase) {

-        SwapImageRecord (ImageRecord, NextImageRecord);

-      }

-

-      NextImageRecordLink = NextImageRecordLink->ForwardLink;

-    }

-

-    ImageRecordLink     = ImageRecordLink->ForwardLink;

-    NextImageRecordLink = ImageRecordLink->ForwardLink;

-  }

-}

-

-/**

   Insert image record.

 

   @param  RuntimeImage    Runtime image information

@@ -1470,47 +761,6 @@ Finish:
 }

 

 /**

-  Find image record according to image base and size.

-

-  @param  ImageBase           Base of PE image

-  @param  ImageSize           Size of PE image

-  @param  ImageRecordList     Image record list to be searched

-

-  @return image record

-**/

-STATIC

-IMAGE_PROPERTIES_RECORD *

-FindImageRecord (

-  IN EFI_PHYSICAL_ADDRESS  ImageBase,

-  IN UINT64                ImageSize,

-  IN LIST_ENTRY            *ImageRecordList

-  )

-{

-  IMAGE_PROPERTIES_RECORD  *ImageRecord;

-  LIST_ENTRY               *ImageRecordLink;

-

-  for (ImageRecordLink = ImageRecordList->ForwardLink;

-       ImageRecordLink != ImageRecordList;

-       ImageRecordLink = ImageRecordLink->ForwardLink)

-  {

-    ImageRecord = CR (

-                    ImageRecordLink,

-                    IMAGE_PROPERTIES_RECORD,

-                    Link,

-                    IMAGE_PROPERTIES_RECORD_SIGNATURE

-                    );

-

-    if ((ImageBase == ImageRecord->ImageBase) &&

-        (ImageSize == ImageRecord->ImageSize))

-    {

-      return ImageRecord;

-    }

-  }

-

-  return NULL;

-}

-

-/**

   Remove Image record.

 

   @param  RuntimeImage    Runtime image information

diff --git a/MdeModulePkg/Core/Dxe/Misc/MemoryProtection.c b/MdeModulePkg/Core/Dxe/Misc/MemoryProtection.c
index 7cc829b174..977239d08a 100644
--- a/MdeModulePkg/Core/Dxe/Misc/MemoryProtection.c
+++ b/MdeModulePkg/Core/Dxe/Misc/MemoryProtection.c
@@ -32,6 +32,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #include <Library/DxeServicesTableLib.h>

 #include <Library/DebugLib.h>

 #include <Library/UefiLib.h>

+#include <Library/ImagePropertiesRecordLib.h>

 

 #include <Guid/EventGroup.h>

 #include <Guid/MemoryAttributesTable.h>

@@ -67,29 +68,6 @@ extern LIST_ENTRY  mGcdMemorySpaceMap;
 STATIC LIST_ENTRY  mProtectedImageRecordList;

 

 /**

-  Sort code section in image record, based upon CodeSegmentBase from low to high.

-

-  @param  ImageRecord    image record to be sorted

-**/

-VOID

-SortImageRecordCodeSection (

-  IN IMAGE_PROPERTIES_RECORD  *ImageRecord

-  );

-

-/**

-  Check if code section in image record is valid.

-

-  @param  ImageRecord    image record to be checked

-

-  @retval TRUE  image record is valid

-  @retval FALSE image record is invalid

-**/

-BOOLEAN

-IsImageRecordCodeSectionValid (

-  IN IMAGE_PROPERTIES_RECORD  *ImageRecord

-  );

-

-/**

   Get the image type.

 

   @param[in]    File       This is a pointer to the device path of the file that is

diff --git a/MdeModulePkg/Include/Library/ImagePropertiesRecordLib.h b/MdeModulePkg/Include/Library/ImagePropertiesRecordLib.h
index 728008a2e5..9139c7b6c0 100644
--- a/MdeModulePkg/Include/Library/ImagePropertiesRecordLib.h
+++ b/MdeModulePkg/Include/Library/ImagePropertiesRecordLib.h
@@ -11,4 +11,163 @@
 #ifndef IMAGE_PROPERTIES_RECORD_SUPPORT_LIB_H_

 #define IMAGE_PROPERTIES_RECORD_SUPPORT_LIB_H_

 

+#define IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE  SIGNATURE_32 ('I','P','R','C')

+

+typedef struct {

+  UINT32                  Signature;

+  LIST_ENTRY              Link;

+  EFI_PHYSICAL_ADDRESS    CodeSegmentBase;

+  UINT64                  CodeSegmentSize;

+} IMAGE_PROPERTIES_RECORD_CODE_SECTION;

+

+#define IMAGE_PROPERTIES_RECORD_SIGNATURE  SIGNATURE_32 ('I','P','R','D')

+

+typedef struct {

+  UINT32                  Signature;

+  LIST_ENTRY              Link;

+  EFI_PHYSICAL_ADDRESS    ImageBase;

+  UINT64                  ImageSize;

+  UINTN                   CodeSegmentCount;

+  LIST_ENTRY              CodeSegmentList;

+} IMAGE_PROPERTIES_RECORD;

+

+/**

+  Split the original memory map, and add more entries to describe PE code section and data section.

+  This function will set EfiRuntimeServicesData to be EFI_MEMORY_XP.

+  This function will merge entries with same attributes finally.

+

+  NOTE: It assumes PE code/data section are page aligned.

+  NOTE: It assumes enough entry is prepared for new memory map.

+

+  Split table:

+   +---------------+

+   | Record X      |

+   +---------------+

+   | Record RtCode |

+   +---------------+

+   | Record Y      |

+   +---------------+

+   ==>

+   +---------------+

+   | Record X      |

+   +---------------+ ----

+   | Record RtData |     |

+   +---------------+     |

+   | Record RtCode |     |-> PE/COFF1

+   +---------------+     |

+   | Record RtData |     |

+   +---------------+ ----

+   | Record RtData |     |

+   +---------------+     |

+   | Record RtCode |     |-> PE/COFF2

+   +---------------+     |

+   | Record RtData |     |

+   +---------------+ ----

+   | Record Y      |

+   +---------------+

+

+  @param  MemoryMapSize                   A pointer to the size, in bytes, of the

+                                          MemoryMap buffer. On input, this is the size of

+                                          old MemoryMap before split. The actual buffer

+                                          size of MemoryMap is MemoryMapSize +

+                                          (AdditionalRecordCount * DescriptorSize) calculated

+                                          below. On output, it is the size of new MemoryMap

+                                          after split.

+  @param  MemoryMap                       A pointer to the buffer in which firmware places

+                                          the current memory map.

+  @param  DescriptorSize                  Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.

+  @param  ImageRecordList                 A list of IMAGE_PROPERTIES_RECORD entries used when searching

+                                          for an image record contained by the memory range described in

+                                          EFI memory map descriptors.

+  @param  NumberOfAdditionalDescriptors   The number of unused descriptors at the end of the input MemoryMap.

+**/

+VOID

+EFIAPI

+SplitTable (

+  IN OUT UINTN                  *MemoryMapSize,

+  IN OUT EFI_MEMORY_DESCRIPTOR  *MemoryMap,

+  IN     UINTN                  DescriptorSize,

+  IN     LIST_ENTRY             *ImageRecordList,

+  IN     UINTN                  NumberOfAdditionalDescriptors

+  );

+

+/**

+  Sort code section in image record, based upon CodeSegmentBase from low to high.

+

+  @param  ImageRecord    image record to be sorted

+**/

+VOID

+EFIAPI

+SortImageRecordCodeSection (

+  IN IMAGE_PROPERTIES_RECORD  *ImageRecord

+  );

+

+/**

+  Check if code section in image record is valid.

+

+  @param  ImageRecord    image record to be checked

+

+  @retval TRUE  image record is valid

+  @retval FALSE image record is invalid

+**/

+BOOLEAN

+EFIAPI

+IsImageRecordCodeSectionValid (

+  IN IMAGE_PROPERTIES_RECORD  *ImageRecord

+  );

+

+/**

+  Sort image record based upon the ImageBase from low to high.

+

+  @param ImageRecordList    Image record list to be sorted

+**/

+VOID

+EFIAPI

+SortImageRecord (

+  IN LIST_ENTRY  *ImageRecordList

+  );

+

+/**

+  Swap two image records.

+

+  @param[in]  FirstImageRecord   The first image record.

+  @param[in]  SecondImageRecord  The second image record.

+**/

+VOID

+EFIAPI

+SwapImageRecord (

+  IN IMAGE_PROPERTIES_RECORD  *FirstImageRecord,

+  IN IMAGE_PROPERTIES_RECORD  *SecondImageRecord

+  );

+

+/**

+  Swap two code sections in a single IMAGE_PROPERTIES_RECORD.

+

+  @param[in]  FirstImageRecordCodeSection    The first code section

+  @param[in]  SecondImageRecordCodeSection   The second code section

+**/

+VOID

+EFIAPI

+SwapImageRecordCodeSection (

+  IN IMAGE_PROPERTIES_RECORD_CODE_SECTION  *FirstImageRecordCodeSection,

+  IN IMAGE_PROPERTIES_RECORD_CODE_SECTION  *SecondImageRecordCodeSection

+  );

+

+/**

+  Find image record according to image base and size.

+

+  @param  ImageBase           Base of PE image

+  @param  ImageSize           Size of PE image

+  @param  ImageRecordList     Image record list to be searched

+

+  @return image record

+**/

+IMAGE_PROPERTIES_RECORD *

+EFIAPI

+FindImageRecord (

+  IN EFI_PHYSICAL_ADDRESS  ImageBase,

+  IN UINT64                ImageSize,

+  IN LIST_ENTRY            *ImageRecordList

+  );

+

 #endif

diff --git a/MdeModulePkg/Library/ImagePropertiesRecordLib/ImagePropertiesRecordLib.c b/MdeModulePkg/Library/ImagePropertiesRecordLib/ImagePropertiesRecordLib.c
index df7c54ebb7..9fb3b92203 100644
--- a/MdeModulePkg/Library/ImagePropertiesRecordLib/ImagePropertiesRecordLib.c
+++ b/MdeModulePkg/Library/ImagePropertiesRecordLib/ImagePropertiesRecordLib.c
@@ -7,3 +7,773 @@
   SPDX-License-Identifier: BSD-2-Clause-Patent

 

 **/

+

+#include <PiDxe.h>

+

+#include <Library/BaseLib.h>

+#include <Library/BaseMemoryLib.h>

+#include <Library/DebugLib.h>

+#include <Library/ImagePropertiesRecordLib.h>

+

+#define PREVIOUS_MEMORY_DESCRIPTOR(MemoryDescriptor, Size) \

+  ((EFI_MEMORY_DESCRIPTOR *)((UINT8 *)(MemoryDescriptor) - (Size)))

+

+#define NEXT_MEMORY_DESCRIPTOR(MemoryDescriptor, Size) \

+  ((EFI_MEMORY_DESCRIPTOR *)((UINT8 *)(MemoryDescriptor) + (Size)))

+

+/**

+  Converts a number of EFI_PAGEs to a size in bytes.

+

+  NOTE: Do not use EFI_PAGES_TO_SIZE because it handles UINTN only.

+

+  @param  Pages     The number of EFI_PAGES.

+

+  @return  The number of bytes associated with the number of EFI_PAGEs specified

+           by Pages.

+**/

+STATIC

+UINT64

+EfiPagesToSize (

+  IN UINT64  Pages

+  )

+{

+  return LShiftU64 (Pages, EFI_PAGE_SHIFT);

+}

+

+/**

+  Converts a size, in bytes, to a number of EFI_PAGESs.

+

+  NOTE: Do not use EFI_SIZE_TO_PAGES because it handles UINTN only.

+

+  @param  Size      A size in bytes.

+

+  @return  The number of EFI_PAGESs associated with the number of bytes specified

+           by Size.

+

+**/

+STATIC

+UINT64

+EfiSizeToPages (

+  IN UINT64  Size

+  )

+{

+  return RShiftU64 (Size, EFI_PAGE_SHIFT) + ((((UINTN)Size) & EFI_PAGE_MASK) ? 1 : 0);

+}

+

+/**

+  Sort memory map entries based upon PhysicalStart, from low to high.

+

+  @param  MemoryMap              A pointer to the buffer in which firmware places

+                                 the current memory map.

+  @param  MemoryMapSize          Size, in bytes, of the MemoryMap buffer.

+  @param  DescriptorSize         Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.

+**/

+STATIC

+VOID

+SortMemoryMap (

+  IN OUT EFI_MEMORY_DESCRIPTOR  *MemoryMap,

+  IN UINTN                      MemoryMapSize,

+  IN UINTN                      DescriptorSize

+  )

+{

+  EFI_MEMORY_DESCRIPTOR  *MemoryMapEntry;

+  EFI_MEMORY_DESCRIPTOR  *NextMemoryMapEntry;

+  EFI_MEMORY_DESCRIPTOR  *MemoryMapEnd;

+  EFI_MEMORY_DESCRIPTOR  TempMemoryMap;

+

+  MemoryMapEntry     = MemoryMap;

+  NextMemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (MemoryMapEntry, DescriptorSize);

+  MemoryMapEnd       = (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)MemoryMap + MemoryMapSize);

+  while (MemoryMapEntry < MemoryMapEnd) {

+    while (NextMemoryMapEntry < MemoryMapEnd) {

+      if (MemoryMapEntry->PhysicalStart > NextMemoryMapEntry->PhysicalStart) {

+        CopyMem (&TempMemoryMap, MemoryMapEntry, sizeof (EFI_MEMORY_DESCRIPTOR));

+        CopyMem (MemoryMapEntry, NextMemoryMapEntry, sizeof (EFI_MEMORY_DESCRIPTOR));

+        CopyMem (NextMemoryMapEntry, &TempMemoryMap, sizeof (EFI_MEMORY_DESCRIPTOR));

+      }

+

+      NextMemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (NextMemoryMapEntry, DescriptorSize);

+    }

+

+    MemoryMapEntry     = NEXT_MEMORY_DESCRIPTOR (MemoryMapEntry, DescriptorSize);

+    NextMemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (MemoryMapEntry, DescriptorSize);

+  }

+

+  return;

+}

+

+/**

+  Return the first image record, whose [ImageBase, ImageSize] covered by [Buffer, Length].

+

+  @param Buffer           Start Address

+  @param Length           Address length

+  @param ImageRecordList  Image record list

+

+  @return first image record covered by [buffer, length]

+**/

+STATIC

+IMAGE_PROPERTIES_RECORD *

+GetImageRecordByAddress (

+  IN EFI_PHYSICAL_ADDRESS  Buffer,

+  IN UINT64                Length,

+  IN LIST_ENTRY            *ImageRecordList

+  )

+{

+  IMAGE_PROPERTIES_RECORD  *ImageRecord;

+  LIST_ENTRY               *ImageRecordLink;

+

+  for (ImageRecordLink = ImageRecordList->ForwardLink;

+       ImageRecordLink != ImageRecordList;

+       ImageRecordLink = ImageRecordLink->ForwardLink)

+  {

+    ImageRecord = CR (

+                    ImageRecordLink,

+                    IMAGE_PROPERTIES_RECORD,

+                    Link,

+                    IMAGE_PROPERTIES_RECORD_SIGNATURE

+                    );

+

+    if ((Buffer <= ImageRecord->ImageBase) &&

+        (Buffer + Length >= ImageRecord->ImageBase + ImageRecord->ImageSize))

+    {

+      return ImageRecord;

+    }

+  }

+

+  return NULL;

+}

+

+/**

+  Set the memory map to new entries, according to one old entry,

+  based upon PE code section and data section in image record

+

+  @param  ImageRecord            An image record whose [ImageBase, ImageSize] covered

+                                 by old memory map entry.

+  @param  NewRecord              A pointer to several new memory map entries.

+                                 The caller gurantee the buffer size be 1 +

+                                 (SplitRecordCount * DescriptorSize) calculated

+                                 below.

+  @param  OldRecord              A pointer to one old memory map entry.

+  @param  DescriptorSize         Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.

+**/

+STATIC

+UINTN

+SetNewRecord (

+  IN IMAGE_PROPERTIES_RECORD    *ImageRecord,

+  IN OUT EFI_MEMORY_DESCRIPTOR  *NewRecord,

+  IN EFI_MEMORY_DESCRIPTOR      *OldRecord,

+  IN UINTN                      DescriptorSize

+  )

+{

+  EFI_MEMORY_DESCRIPTOR                 TempRecord;

+  IMAGE_PROPERTIES_RECORD_CODE_SECTION  *ImageRecordCodeSection;

+  LIST_ENTRY                            *ImageRecordCodeSectionLink;

+  LIST_ENTRY                            *ImageRecordCodeSectionEndLink;

+  LIST_ENTRY                            *ImageRecordCodeSectionList;

+  UINTN                                 NewRecordCount;

+  UINT64                                PhysicalEnd;

+  UINT64                                ImageEnd;

+

+  CopyMem (&TempRecord, OldRecord, sizeof (EFI_MEMORY_DESCRIPTOR));

+  PhysicalEnd    = TempRecord.PhysicalStart + EfiPagesToSize (TempRecord.NumberOfPages);

+  NewRecordCount = 0;

+

+  ImageRecordCodeSectionList = &ImageRecord->CodeSegmentList;

+

+  ImageRecordCodeSectionLink    = ImageRecordCodeSectionList->ForwardLink;

+  ImageRecordCodeSectionEndLink = ImageRecordCodeSectionList;

+  while (ImageRecordCodeSectionLink != ImageRecordCodeSectionEndLink) {

+    ImageRecordCodeSection = CR (

+                               ImageRecordCodeSectionLink,

+                               IMAGE_PROPERTIES_RECORD_CODE_SECTION,

+                               Link,

+                               IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE

+                               );

+    ImageRecordCodeSectionLink = ImageRecordCodeSectionLink->ForwardLink;

+

+    if (TempRecord.PhysicalStart <= ImageRecordCodeSection->CodeSegmentBase) {

+      //

+      // DATA

+      //

+      NewRecord->Type          = TempRecord.Type;

+      NewRecord->PhysicalStart = TempRecord.PhysicalStart;

+      NewRecord->VirtualStart  = 0;

+      NewRecord->NumberOfPages = EfiSizeToPages (ImageRecordCodeSection->CodeSegmentBase - NewRecord->PhysicalStart);

+      NewRecord->Attribute     = TempRecord.Attribute | EFI_MEMORY_XP;

+      if (NewRecord->NumberOfPages != 0) {

+        NewRecord = NEXT_MEMORY_DESCRIPTOR (NewRecord, DescriptorSize);

+        NewRecordCount++;

+      }

+

+      //

+      // CODE

+      //

+      NewRecord->Type          = TempRecord.Type;

+      NewRecord->PhysicalStart = ImageRecordCodeSection->CodeSegmentBase;

+      NewRecord->VirtualStart  = 0;

+      NewRecord->NumberOfPages = EfiSizeToPages (ImageRecordCodeSection->CodeSegmentSize);

+      NewRecord->Attribute     = (TempRecord.Attribute & (~EFI_MEMORY_XP)) | EFI_MEMORY_RO;

+      if (NewRecord->NumberOfPages != 0) {

+        NewRecord = NEXT_MEMORY_DESCRIPTOR (NewRecord, DescriptorSize);

+        NewRecordCount++;

+      }

+

+      TempRecord.PhysicalStart = ImageRecordCodeSection->CodeSegmentBase + EfiPagesToSize (EfiSizeToPages (ImageRecordCodeSection->CodeSegmentSize));

+      TempRecord.NumberOfPages = EfiSizeToPages (PhysicalEnd - TempRecord.PhysicalStart);

+      if (TempRecord.NumberOfPages == 0) {

+        break;

+      }

+    }

+  }

+

+  ImageEnd = ImageRecord->ImageBase + ImageRecord->ImageSize;

+

+  //

+  // Final DATA

+  //

+  if (TempRecord.PhysicalStart < ImageEnd) {

+    NewRecord->Type          = TempRecord.Type;

+    NewRecord->PhysicalStart = TempRecord.PhysicalStart;

+    NewRecord->VirtualStart  = 0;

+    NewRecord->NumberOfPages = EfiSizeToPages (ImageEnd - TempRecord.PhysicalStart);

+    NewRecord->Attribute     = TempRecord.Attribute | EFI_MEMORY_XP;

+    NewRecordCount++;

+  }

+

+  return NewRecordCount;

+}

+

+/**

+  Return the max number of new splitted entries, according to one old entry,

+  based upon PE code section and data section.

+

+  @param  OldRecord              A pointer to one old memory map entry.

+  @param  ImageRecordList        A list of IMAGE_PROPERTIES_RECORD entries used when searching

+                                 for an image record contained by the memory range described in

+                                 the existing EFI memory map descriptor OldRecord

+

+  @retval  0 no entry need to be splitted.

+  @return  the max number of new splitted entries

+**/

+STATIC

+UINTN

+GetMaxSplitRecordCount (

+  IN EFI_MEMORY_DESCRIPTOR  *OldRecord,

+  IN LIST_ENTRY             *ImageRecordList

+  )

+{

+  IMAGE_PROPERTIES_RECORD  *ImageRecord;

+  UINTN                    SplitRecordCount;

+  UINT64                   PhysicalStart;

+  UINT64                   PhysicalEnd;

+

+  SplitRecordCount = 0;

+  PhysicalStart    = OldRecord->PhysicalStart;

+  PhysicalEnd      = OldRecord->PhysicalStart + EfiPagesToSize (OldRecord->NumberOfPages);

+

+  do {

+    ImageRecord = GetImageRecordByAddress (PhysicalStart, PhysicalEnd - PhysicalStart, ImageRecordList);

+    if (ImageRecord == NULL) {

+      break;

+    }

+

+    SplitRecordCount += (2 * ImageRecord->CodeSegmentCount + 1);

+    PhysicalStart     = ImageRecord->ImageBase + ImageRecord->ImageSize;

+  } while ((ImageRecord != NULL) && (PhysicalStart < PhysicalEnd));

+

+  if (SplitRecordCount != 0) {

+    SplitRecordCount--;

+  }

+

+  return SplitRecordCount;

+}

+

+/**

+  Split the memory map to new entries, according to one old entry,

+  based upon PE code section and data section.

+

+  @param        OldRecord             A pointer to one old memory map entry.

+  @param        NewRecord             A pointer to several new memory map entries.

+                                      The caller gurantee the buffer size be 1 +

+                                      (SplitRecordCount * DescriptorSize) calculated

+                                      below.

+  @param        MaxSplitRecordCount   The max number of splitted entries

+  @param        DescriptorSize        Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.

+  @param        ImageRecordList       A list of IMAGE_PROPERTIES_RECORD entries used when searching

+                                      for an image record contained by the memory range described in

+                                      the existing EFI memory map descriptor OldRecord

+

+  @retval  0 no entry is splitted.

+  @return  the real number of splitted record.

+**/

+STATIC

+UINTN

+SplitRecord (

+  IN EFI_MEMORY_DESCRIPTOR      *OldRecord,

+  IN OUT EFI_MEMORY_DESCRIPTOR  *NewRecord,

+  IN UINTN                      MaxSplitRecordCount,

+  IN UINTN                      DescriptorSize,

+  IN LIST_ENTRY                 *ImageRecordList

+  )

+{

+  EFI_MEMORY_DESCRIPTOR    TempRecord;

+  IMAGE_PROPERTIES_RECORD  *ImageRecord;

+  IMAGE_PROPERTIES_RECORD  *NewImageRecord;

+  UINT64                   PhysicalStart;

+  UINT64                   PhysicalEnd;

+  UINTN                    NewRecordCount;

+  UINTN                    TotalNewRecordCount;

+  BOOLEAN                  IsLastRecordData;

+

+  if (MaxSplitRecordCount == 0) {

+    CopyMem (NewRecord, OldRecord, DescriptorSize);

+    return 0;

+  }

+

+  TotalNewRecordCount = 0;

+

+  //

+  // Override previous record

+  //

+  CopyMem (&TempRecord, OldRecord, sizeof (EFI_MEMORY_DESCRIPTOR));

+  PhysicalStart = TempRecord.PhysicalStart;

+  PhysicalEnd   = TempRecord.PhysicalStart + EfiPagesToSize (TempRecord.NumberOfPages);

+

+  ImageRecord = NULL;

+  do {

+    NewImageRecord = GetImageRecordByAddress (PhysicalStart, PhysicalEnd - PhysicalStart, ImageRecordList);

+    if (NewImageRecord == NULL) {

+      //

+      // No more image covered by this range, stop

+      //

+      if ((PhysicalEnd > PhysicalStart) && (ImageRecord != NULL)) {

+        //

+        // If this is still address in this record, need record.

+        //

+        NewRecord        = PREVIOUS_MEMORY_DESCRIPTOR (NewRecord, DescriptorSize);

+        IsLastRecordData = FALSE;

+        if ((NewRecord->Attribute & EFI_MEMORY_XP) != 0) {

+          IsLastRecordData = TRUE;

+        }

+

+        if (IsLastRecordData) {

+          //

+          // Last record is DATA, just merge it.

+          //

+          NewRecord->NumberOfPages = EfiSizeToPages (PhysicalEnd - NewRecord->PhysicalStart);

+        } else {

+          //

+          // Last record is CODE, create a new DATA entry.

+          //

+          NewRecord                = NEXT_MEMORY_DESCRIPTOR (NewRecord, DescriptorSize);

+          NewRecord->Type          = TempRecord.Type;

+          NewRecord->PhysicalStart = TempRecord.PhysicalStart;

+          NewRecord->VirtualStart  = 0;

+          NewRecord->NumberOfPages = TempRecord.NumberOfPages;

+          NewRecord->Attribute     = TempRecord.Attribute | EFI_MEMORY_XP;

+          TotalNewRecordCount++;

+        }

+      }

+

+      break;

+    }

+

+    ImageRecord = NewImageRecord;

+

+    //

+    // Set new record

+    //

+    NewRecordCount       = SetNewRecord (ImageRecord, NewRecord, &TempRecord, DescriptorSize);

+    TotalNewRecordCount += NewRecordCount;

+    NewRecord            = (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)NewRecord + NewRecordCount * DescriptorSize);

+

+    //

+    // Update PhysicalStart, in order to exclude the image buffer already splitted.

+    //

+    PhysicalStart            = ImageRecord->ImageBase + ImageRecord->ImageSize;

+    TempRecord.PhysicalStart = PhysicalStart;

+    TempRecord.NumberOfPages = EfiSizeToPages (PhysicalEnd - PhysicalStart);

+  } while ((ImageRecord != NULL) && (PhysicalStart < PhysicalEnd));

+

+  //

+  // The logic in function SplitTable() ensures that TotalNewRecordCount will not be zero if the

+  // code reaches here.

+  //

+  ASSERT (TotalNewRecordCount != 0);

+  return TotalNewRecordCount - 1;

+}

+

+/**

+  Split the original memory map, and add more entries to describe PE code section and data section.

+  This function will set EfiRuntimeServicesData to be EFI_MEMORY_XP.

+  This function will merge entries with same attributes finally.

+

+  NOTE: It assumes PE code/data section are page aligned.

+  NOTE: It assumes enough entry is prepared for new memory map.

+

+  Split table:

+   +---------------+

+   | Record X      |

+   +---------------+

+   | Record RtCode |

+   +---------------+

+   | Record Y      |

+   +---------------+

+   ==>

+   +---------------+

+   | Record X      |

+   +---------------+ ----

+   | Record RtData |     |

+   +---------------+     |

+   | Record RtCode |     |-> PE/COFF1

+   +---------------+     |

+   | Record RtData |     |

+   +---------------+ ----

+   | Record RtData |     |

+   +---------------+     |

+   | Record RtCode |     |-> PE/COFF2

+   +---------------+     |

+   | Record RtData |     |

+   +---------------+ ----

+   | Record Y      |

+   +---------------+

+

+  @param  MemoryMapSize                   A pointer to the size, in bytes, of the

+                                          MemoryMap buffer. On input, this is the size of

+                                          old MemoryMap before split. The actual buffer

+                                          size of MemoryMap is MemoryMapSize +

+                                          (AdditionalRecordCount * DescriptorSize) calculated

+                                          below. On output, it is the size of new MemoryMap

+                                          after split.

+  @param  MemoryMap                       A pointer to the buffer in which firmware places

+                                          the current memory map.

+  @param  DescriptorSize                  Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.

+  @param  ImageRecordList                 A list of IMAGE_PROPERTIES_RECORD entries used when searching

+                                          for an image record contained by the memory range described in

+                                          EFI memory map descriptors.

+  @param  NumberOfAdditionalDescriptors   The number of unused descriptors at the end of the input MemoryMap.

+**/

+VOID

+EFIAPI

+SplitTable (

+  IN OUT UINTN                  *MemoryMapSize,

+  IN OUT EFI_MEMORY_DESCRIPTOR  *MemoryMap,

+  IN     UINTN                  DescriptorSize,

+  IN     LIST_ENTRY             *ImageRecordList,

+  IN     UINTN                  NumberOfAdditionalDescriptors

+  )

+{

+  INTN   IndexOld;

+  INTN   IndexNew;

+  UINTN  MaxSplitRecordCount;

+  UINTN  RealSplitRecordCount;

+  UINTN  TotalSplitRecordCount;

+

+  TotalSplitRecordCount = 0;

+  //

+  // Let old record point to end of valid MemoryMap buffer.

+  //

+  IndexOld = ((*MemoryMapSize) / DescriptorSize) - 1;

+  //

+  // Let new record point to end of full MemoryMap buffer.

+  //

+  IndexNew = ((*MemoryMapSize) / DescriptorSize) - 1 + NumberOfAdditionalDescriptors;

+  for ( ; IndexOld >= 0; IndexOld--) {

+    MaxSplitRecordCount = GetMaxSplitRecordCount ((EFI_MEMORY_DESCRIPTOR *)((UINT8 *)MemoryMap + IndexOld * DescriptorSize), ImageRecordList);

+    //

+    // Split this MemoryMap record

+    //

+    IndexNew            -= MaxSplitRecordCount;

+    RealSplitRecordCount = SplitRecord (

+                             (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)MemoryMap + IndexOld * DescriptorSize),

+                             (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)MemoryMap + IndexNew * DescriptorSize),

+                             MaxSplitRecordCount,

+                             DescriptorSize,

+                             ImageRecordList

+                             );

+    //

+    // Adjust IndexNew according to real split.

+    //

+    CopyMem (

+      ((UINT8 *)MemoryMap + (IndexNew + MaxSplitRecordCount - RealSplitRecordCount) * DescriptorSize),

+      ((UINT8 *)MemoryMap + IndexNew * DescriptorSize),

+      RealSplitRecordCount * DescriptorSize

+      );

+    IndexNew               = IndexNew + MaxSplitRecordCount - RealSplitRecordCount;

+    TotalSplitRecordCount += RealSplitRecordCount;

+    IndexNew--;

+  }

+

+  //

+  // Move all records to the beginning.

+  //

+  CopyMem (

+    MemoryMap,

+    (UINT8 *)MemoryMap + (NumberOfAdditionalDescriptors - TotalSplitRecordCount) * DescriptorSize,

+    (*MemoryMapSize) + TotalSplitRecordCount * DescriptorSize

+    );

+

+  *MemoryMapSize = (*MemoryMapSize) + DescriptorSize * TotalSplitRecordCount;

+

+  //

+  // Sort from low to high (Just in case)

+  //

+  SortMemoryMap (MemoryMap, *MemoryMapSize, DescriptorSize);

+

+  return;

+}

+

+/**

+  Swap two code sections in image record.

+

+  @param  FirstImageRecordCodeSection    first code section in image record

+  @param  SecondImageRecordCodeSection   second code section in image record

+**/

+VOID

+EFIAPI

+SwapImageRecordCodeSection (

+  IN IMAGE_PROPERTIES_RECORD_CODE_SECTION  *FirstImageRecordCodeSection,

+  IN IMAGE_PROPERTIES_RECORD_CODE_SECTION  *SecondImageRecordCodeSection

+  )

+{

+  IMAGE_PROPERTIES_RECORD_CODE_SECTION  TempImageRecordCodeSection;

+

+  TempImageRecordCodeSection.CodeSegmentBase = FirstImageRecordCodeSection->CodeSegmentBase;

+  TempImageRecordCodeSection.CodeSegmentSize = FirstImageRecordCodeSection->CodeSegmentSize;

+

+  FirstImageRecordCodeSection->CodeSegmentBase = SecondImageRecordCodeSection->CodeSegmentBase;

+  FirstImageRecordCodeSection->CodeSegmentSize = SecondImageRecordCodeSection->CodeSegmentSize;

+

+  SecondImageRecordCodeSection->CodeSegmentBase = TempImageRecordCodeSection.CodeSegmentBase;

+  SecondImageRecordCodeSection->CodeSegmentSize = TempImageRecordCodeSection.CodeSegmentSize;

+}

+

+/**

+  Sort code section in image record, based upon CodeSegmentBase from low to high.

+

+  @param  ImageRecord    image record to be sorted

+**/

+VOID

+EFIAPI

+SortImageRecordCodeSection (

+  IN IMAGE_PROPERTIES_RECORD  *ImageRecord

+  )

+{

+  IMAGE_PROPERTIES_RECORD_CODE_SECTION  *ImageRecordCodeSection;

+  IMAGE_PROPERTIES_RECORD_CODE_SECTION  *NextImageRecordCodeSection;

+  LIST_ENTRY                            *ImageRecordCodeSectionLink;

+  LIST_ENTRY                            *NextImageRecordCodeSectionLink;

+  LIST_ENTRY                            *ImageRecordCodeSectionEndLink;

+  LIST_ENTRY                            *ImageRecordCodeSectionList;

+

+  ImageRecordCodeSectionList = &ImageRecord->CodeSegmentList;

+

+  ImageRecordCodeSectionLink     = ImageRecordCodeSectionList->ForwardLink;

+  NextImageRecordCodeSectionLink = ImageRecordCodeSectionLink->ForwardLink;

+  ImageRecordCodeSectionEndLink  = ImageRecordCodeSectionList;

+  while (ImageRecordCodeSectionLink != ImageRecordCodeSectionEndLink) {

+    ImageRecordCodeSection = CR (

+                               ImageRecordCodeSectionLink,

+                               IMAGE_PROPERTIES_RECORD_CODE_SECTION,

+                               Link,

+                               IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE

+                               );

+    while (NextImageRecordCodeSectionLink != ImageRecordCodeSectionEndLink) {

+      NextImageRecordCodeSection = CR (

+                                     NextImageRecordCodeSectionLink,

+                                     IMAGE_PROPERTIES_RECORD_CODE_SECTION,

+                                     Link,

+                                     IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE

+                                     );

+      if (ImageRecordCodeSection->CodeSegmentBase > NextImageRecordCodeSection->CodeSegmentBase) {

+        SwapImageRecordCodeSection (ImageRecordCodeSection, NextImageRecordCodeSection);

+      }

+

+      NextImageRecordCodeSectionLink = NextImageRecordCodeSectionLink->ForwardLink;

+    }

+

+    ImageRecordCodeSectionLink     = ImageRecordCodeSectionLink->ForwardLink;

+    NextImageRecordCodeSectionLink = ImageRecordCodeSectionLink->ForwardLink;

+  }

+}

+

+/**

+  Check if code section in image record is valid.

+

+  @param  ImageRecord    image record to be checked

+

+  @retval TRUE  image record is valid

+  @retval FALSE image record is invalid

+**/

+BOOLEAN

+EFIAPI

+IsImageRecordCodeSectionValid (

+  IN IMAGE_PROPERTIES_RECORD  *ImageRecord

+  )

+{

+  IMAGE_PROPERTIES_RECORD_CODE_SECTION  *ImageRecordCodeSection;

+  IMAGE_PROPERTIES_RECORD_CODE_SECTION  *LastImageRecordCodeSection;

+  LIST_ENTRY                            *ImageRecordCodeSectionLink;

+  LIST_ENTRY                            *ImageRecordCodeSectionEndLink;

+  LIST_ENTRY                            *ImageRecordCodeSectionList;

+

+  DEBUG ((DEBUG_VERBOSE, "ImageCode SegmentCount - 0x%x\n", ImageRecord->CodeSegmentCount));

+

+  ImageRecordCodeSectionList = &ImageRecord->CodeSegmentList;

+

+  ImageRecordCodeSectionLink    = ImageRecordCodeSectionList->ForwardLink;

+  ImageRecordCodeSectionEndLink = ImageRecordCodeSectionList;

+  LastImageRecordCodeSection    = NULL;

+  while (ImageRecordCodeSectionLink != ImageRecordCodeSectionEndLink) {

+    ImageRecordCodeSection = CR (

+                               ImageRecordCodeSectionLink,

+                               IMAGE_PROPERTIES_RECORD_CODE_SECTION,

+                               Link,

+                               IMAGE_PROPERTIES_RECORD_CODE_SECTION_SIGNATURE

+                               );

+    if (ImageRecordCodeSection->CodeSegmentSize == 0) {

+      return FALSE;

+    }

+

+    if (ImageRecordCodeSection->CodeSegmentBase < ImageRecord->ImageBase) {

+      return FALSE;

+    }

+

+    if (ImageRecordCodeSection->CodeSegmentBase >= MAX_ADDRESS - ImageRecordCodeSection->CodeSegmentSize) {

+      return FALSE;

+    }

+

+    if ((ImageRecordCodeSection->CodeSegmentBase + ImageRecordCodeSection->CodeSegmentSize) > (ImageRecord->ImageBase + ImageRecord->ImageSize)) {

+      return FALSE;

+    }

+

+    if (LastImageRecordCodeSection != NULL) {

+      if ((LastImageRecordCodeSection->CodeSegmentBase + LastImageRecordCodeSection->CodeSegmentSize) > ImageRecordCodeSection->CodeSegmentBase) {

+        return FALSE;

+      }

+    }

+

+    LastImageRecordCodeSection = ImageRecordCodeSection;

+    ImageRecordCodeSectionLink = ImageRecordCodeSectionLink->ForwardLink;

+  }

+

+  return TRUE;

+}

+

+/**

+  Swap two image records.

+

+  @param  FirstImageRecord   first image record.

+  @param  SecondImageRecord  second image record.

+**/

+VOID

+EFIAPI

+SwapImageRecord (

+  IN IMAGE_PROPERTIES_RECORD  *FirstImageRecord,

+  IN IMAGE_PROPERTIES_RECORD  *SecondImageRecord

+  )

+{

+  IMAGE_PROPERTIES_RECORD  TempImageRecord;

+

+  TempImageRecord.ImageBase        = FirstImageRecord->ImageBase;

+  TempImageRecord.ImageSize        = FirstImageRecord->ImageSize;

+  TempImageRecord.CodeSegmentCount = FirstImageRecord->CodeSegmentCount;

+

+  FirstImageRecord->ImageBase        = SecondImageRecord->ImageBase;

+  FirstImageRecord->ImageSize        = SecondImageRecord->ImageSize;

+  FirstImageRecord->CodeSegmentCount = SecondImageRecord->CodeSegmentCount;

+

+  SecondImageRecord->ImageBase        = TempImageRecord.ImageBase;

+  SecondImageRecord->ImageSize        = TempImageRecord.ImageSize;

+  SecondImageRecord->CodeSegmentCount = TempImageRecord.CodeSegmentCount;

+

+  SwapListEntries (&FirstImageRecord->CodeSegmentList, &SecondImageRecord->CodeSegmentList);

+}

+

+/**

+  Sort image record based upon the ImageBase from low to high.

+

+  @param ImageRecordList    Image record list to be sorted

+**/

+VOID

+EFIAPI

+SortImageRecord (

+  IN LIST_ENTRY  *ImageRecordList

+  )

+{

+  IMAGE_PROPERTIES_RECORD  *ImageRecord;

+  IMAGE_PROPERTIES_RECORD  *NextImageRecord;

+  LIST_ENTRY               *ImageRecordLink;

+  LIST_ENTRY               *NextImageRecordLink;

+  LIST_ENTRY               *ImageRecordEndLink;

+

+  ImageRecordLink     = ImageRecordList->ForwardLink;

+  NextImageRecordLink = ImageRecordLink->ForwardLink;

+  ImageRecordEndLink  = ImageRecordList;

+  while (ImageRecordLink != ImageRecordEndLink) {

+    ImageRecord = CR (

+                    ImageRecordLink,

+                    IMAGE_PROPERTIES_RECORD,

+                    Link,

+                    IMAGE_PROPERTIES_RECORD_SIGNATURE

+                    );

+    while (NextImageRecordLink != ImageRecordEndLink) {

+      NextImageRecord = CR (

+                          NextImageRecordLink,

+                          IMAGE_PROPERTIES_RECORD,

+                          Link,

+                          IMAGE_PROPERTIES_RECORD_SIGNATURE

+

+                          );

+      if (ImageRecord->ImageBase > NextImageRecord->ImageBase) {

+        SwapImageRecord (ImageRecord, NextImageRecord);

+      }

+

+      NextImageRecordLink = NextImageRecordLink->ForwardLink;

+    }

+

+    ImageRecordLink     = ImageRecordLink->ForwardLink;

+    NextImageRecordLink = ImageRecordLink->ForwardLink;

+  }

+}

+

+/**

+  Find image record according to image base and size.

+

+  @param  ImageBase           Base of PE image

+  @param  ImageSize           Size of PE image

+  @param  ImageRecordList     Image record list to be searched

+

+  @return image record

+**/

+IMAGE_PROPERTIES_RECORD *

+EFIAPI

+FindImageRecord (

+  IN EFI_PHYSICAL_ADDRESS  ImageBase,

+  IN UINT64                ImageSize,

+  IN LIST_ENTRY            *ImageRecordList

+  )

+{

+  IMAGE_PROPERTIES_RECORD  *ImageRecord;

+  LIST_ENTRY               *ImageRecordLink;

+

+  for (ImageRecordLink = ImageRecordList->ForwardLink;

+       ImageRecordLink != ImageRecordList;

+       ImageRecordLink = ImageRecordLink->ForwardLink)

+  {

+    ImageRecord = CR (

+                    ImageRecordLink,

+                    IMAGE_PROPERTIES_RECORD,

+                    Link,

+                    IMAGE_PROPERTIES_RECORD_SIGNATURE

+                    );

+

+    if ((ImageBase == ImageRecord->ImageBase) &&

+        (ImageSize == ImageRecord->ImageSize))

+    {

+      return ImageRecord;

+    }

+  }

+

+  return NULL;

+}

diff --git a/MdeModulePkg/Library/ImagePropertiesRecordLib/ImagePropertiesRecordLib.inf b/MdeModulePkg/Library/ImagePropertiesRecordLib/ImagePropertiesRecordLib.inf
index b7e4930568..4c1466fc33 100644
--- a/MdeModulePkg/Library/ImagePropertiesRecordLib/ImagePropertiesRecordLib.inf
+++ b/MdeModulePkg/Library/ImagePropertiesRecordLib/ImagePropertiesRecordLib.inf
@@ -19,6 +19,10 @@
 [Sources.common]

   ImagePropertiesRecordLib.c

 

+[LibraryClasses]

+  BaseLib

+  BaseMemoryLib

+  DebugLib

 

 [Packages]

   MdePkg/MdePkg.dec