mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-30 12:43:41 +01:00
64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/**
|
|
|
|
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
|