1 #ifndef QEMU_MMAP_ALLOC_H 2 #define QEMU_MMAP_ALLOC_H 3 4 5 size_t qemu_fd_getpagesize(int fd); 6 7 size_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 */ 24 void *qemu_ram_mmap(int fd, 25 size_t size, 26 size_t align, 27 bool shared, 28 bool is_pmem); 29 30 void qemu_ram_munmap(int fd, void *ptr, size_t size); 31 32 #endif 33