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 * @readonly: true for a read-only mapping, false for read/write. 18 * @shared: map has RAM_SHARED flag. 19 * @is_pmem: map has RAM_PMEM flag. 20 * 21 * Return: 22 * On success, return a pointer to the mapped area. 23 * On failure, return MAP_FAILED. 24 */ 25 void *qemu_ram_mmap(int fd, 26 size_t size, 27 size_t align, 28 bool readonly, 29 bool shared, 30 bool is_pmem); 31 32 void qemu_ram_munmap(int fd, void *ptr, size_t size); 33 34 #endif 35