projects / mirror_qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| f04cf923 MAL |
1 | #ifndef QEMU_MEMFD_H |
| 2 | #define QEMU_MEMFD_H | |
| 3 | ||
| f04cf923 MAL |
4 | |
| 5 | #ifndef F_LINUX_SPECIFIC_BASE | |
| 6 | #define F_LINUX_SPECIFIC_BASE 1024 | |
| 7 | #endif | |
| 8 | ||
| 9 | #ifndef F_ADD_SEALS | |
| 10 | #define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9) | |
| 11 | #define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10) | |
| 12 | ||
| 13 | #define F_SEAL_SEAL 0x0001 /* prevent further seals from being set */ | |
| 14 | #define F_SEAL_SHRINK 0x0002 /* prevent file from shrinking */ | |
| 15 | #define F_SEAL_GROW 0x0004 /* prevent file from growing */ | |
| 16 | #define F_SEAL_WRITE 0x0008 /* prevent writes */ | |
| 17 | #endif | |
| 18 | ||
| 38296400 MAL |
19 | #ifndef MFD_CLOEXEC |
| 20 | #define MFD_CLOEXEC 0x0001U | |
| 21 | #endif | |
| 22 | ||
| 23 | #ifndef MFD_ALLOW_SEALING | |
| 24 | #define MFD_ALLOW_SEALING 0x0002U | |
| 25 | #endif | |
| 26 | ||
| 27 | #ifndef MFD_HUGETLB | |
| 28 | #define MFD_HUGETLB 0x0004U | |
| 29 | #endif | |
| 30 | ||
| 31 | #ifndef MFD_HUGE_SHIFT | |
| 32 | #define MFD_HUGE_SHIFT 26 | |
| 33 | #endif | |
| 34 | ||
| 9bdfa4d2 SCW |
35 | #if defined CONFIG_LINUX && !defined CONFIG_MEMFD |
| 36 | int memfd_create(const char *name, unsigned int flags); | |
| 37 | #endif | |
| 38 | ||
| c5b2a9e0 | 39 | int qemu_memfd_create(const char *name, size_t size, bool hugetlb, |
| 2ef8c0c9 | 40 | uint64_t hugetlbsize, unsigned int seals, Error **errp); |
| 648abbfb | 41 | bool qemu_memfd_alloc_check(void); |
| d3592199 | 42 | void *qemu_memfd_alloc(const char *name, size_t size, unsigned int seals, |
| 0f2956f9 | 43 | int *fd, Error **errp); |
| d3592199 | 44 | void qemu_memfd_free(void *ptr, size_t size, int fd); |
| 38296400 | 45 | bool qemu_memfd_check(unsigned int flags); |
| d3592199 | 46 | |
| f04cf923 | 47 | #endif /* QEMU_MEMFD_H */ |