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 | |