mmap-alloc header

The documentation of QEMU’s qemu/mmap-alloc.h header.

void * qemu_ram_mmap(int fd, size_t size, size_t align, bool shared, bool is_pmem)

Parameters

int fd

the file or the device to mmap

size_t size

the number of bytes to be mmaped

size_t align

if not zero, specify the alignment of the starting mapping address; otherwise, the alignment in use will be determined by QEMU.

bool shared

map has RAM_SHARED flag.

bool is_pmem

map has RAM_PMEM flag.

Description

Parameters:

Return

On success, return a pointer to the mapped area. On failure, return MAP_FAILED.