LXR qemu/include/qemu/mmap-alloc.h

   1#ifndef QEMU_MMAP_ALLOC_H
   2#define QEMU_MMAP_ALLOC_H
   3
   4
   5size_t qemu_fd_getpagesize(int fd);
   6
   7size_t qemu_mempath_getpagesize(const char *mem_path);
   8
   9/**
  10 * qemu_ram_mmap: mmap the specified file or device.
  11 *
  12 * Parameters:
  13 *  @fd: the file or the device to mmap
  14 *  @size: the number of bytes to be mmaped
  15 *  @align: if not zero, specify the alignment of the starting mapping address;
  16 *          otherwise, the alignment in use will be determined by QEMU.
  17 *  @shared: map has RAM_SHARED flag.
  18 *  @is_pmem: map has RAM_PMEM flag.
  19 *
  20 * Return:
  21 *  On success, return a pointer to the mapped area.
  22 *  On failure, return MAP_FAILED.
  23 */
  24void *qemu_ram_mmap(int fd,
  25                    size_t size,
  26                    size_t align,
  27                    bool shared,
  28                    bool is_pmem);
  29
  30void qemu_ram_munmap(int fd, void *ptr, size_t size);
  31
  32#endif
  33