#include <AppleRamDisk.h>

Data Fields
UINT64	AllocatedExtents

UINT64	PageCount

UINT64	TotalSize

APPLE_RAM_DISK_EXTENT	Extents [APPLE_RAM_DISK_MAX_EXTENTS]

UINT64	Reserved

UINT8	OwnExtentData []

Detailed Description

RAM Disk outermost structure. Allocated in pages with matching MemoryType.

Definition at line 310 of file AppleRamDisk.h.

Field Documentation

◆ AllocatedExtents

UINT64 APPLE_RAM_DISK::AllocatedExtents

Amount of allocated extents in the RAM disk.

Definition at line 314 of file AppleRamDisk.h.

◆ Extents

APPLE_RAM_DISK_EXTENT APPLE_RAM_DISK::Extents[APPLE_RAM_DISK_MAX_EXTENTS]

All allocated and owned extents. First extent is special, as it points to OwnExtentData, and thus has APPLE_RAM_DISK_DEFAULT_SIZE - sizeof (APPLE_RAM_DISK) bytes.

Definition at line 331 of file AppleRamDisk.h.

◆ OwnExtentData

UINT8 APPLE_RAM_DISK::OwnExtentData[]

Own extent data lasting till PageCount end.

Definition at line 339 of file AppleRamDisk.h.

◆ PageCount

UINT64 APPLE_RAM_DISK::PageCount

Amount of allocated pages in APPLE_RAM_DISK structure. Normally EFI_SIZE_TO_PAGES (APPLE_RAM_DISK_DEFAULT_SIZE).

Definition at line 319 of file AppleRamDisk.h.

◆ Reserved

UINT64 APPLE_RAM_DISK::Reserved

Currently reserved or rather unknown. Padding?

Definition at line 335 of file AppleRamDisk.h.

◆ TotalSize

UINT64 APPLE_RAM_DISK::TotalSize

Total disk size allocated from memory map. It is bigger by sizeof(APPLE_RAM_DISK_CONTEXT) than actual requested size, when AllocateMemory = TRUE is specified.

Definition at line 325 of file AppleRamDisk.h.

The documentation for this struct was generated from the following file:

Include/Apple/Protocol/AppleRamDisk.h

Data Fields