CloverBootloader/MemoryFix/AptioMemoryFix/MemoryMap.h

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/**
MemoryMap helper functions.
by dmazar
**/
#ifndef APTIOFIX_MEMORY_MAP_H
#define APTIOFIX_MEMORY_MAP_H
/** MemMap reversed scan */
#define PREV_MEMORY_DESCRIPTOR(MemoryDescriptor, Size) \
((EFI_MEMORY_DESCRIPTOR *)((UINT8 *)(MemoryDescriptor) - (Size)))
/** Shrinks mem map by joining non-runtime records. */
VOID
ShrinkMemMap (
IN OUT UINTN *MemoryMapSize,
IN OUT EFI_MEMORY_DESCRIPTOR *MemoryMap,
IN UINTN DescriptorSize
);
/** Protects AMI CSM region from being overwritten by the kernel. */
VOID
ProtectCsmRegion (
UINTN MemoryMapSize,
EFI_MEMORY_DESCRIPTOR *MemoryMap,
UINTN DescriptorSize
);
/** Prints mem map. */
VOID
PrintMemMap (
IN CONST CHAR16 *Name,
IN UINTN MemoryMapSize,
IN UINTN DescriptorSize,
IN EFI_MEMORY_DESCRIPTOR *MemoryMap,
IN VOID *Shims,
IN EFI_PHYSICAL_ADDRESS SysTable
);
/** Helper function that calls GetMemoryMap(), allocates space for mem map and returns it. */
EFI_STATUS
GetMemoryMapAlloc (
IN OUT UINTN *AllocatedTopPages,
OUT UINTN *MemoryMapSize,
OUT EFI_MEMORY_DESCRIPTOR **MemoryMap,
OUT UINTN *MapKey,
OUT UINTN *DescriptorSize,
OUT UINT32 *DescriptorVersion
);
/** Alloctes pages from the top of mem, up to address specified in Memory. Returns allocated address in Memory. */
EFI_STATUS
AllocatePagesFromTop (
IN EFI_MEMORY_TYPE MemoryType,
IN UINTN Pages,
IN OUT EFI_PHYSICAL_ADDRESS *Memory,
IN BOOLEAN CheckRange
);
#endif // APTIOFIX_MEMORY_MAP_H