| /* |
| * Linux UFFD-WP support |
| * |
| * Copyright Virtuozzo GmbH, 2020 |
| * |
| * Authors: |
| * Andrey Gruzdev <andrey.gruzdev@virtuozzo.com> |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2 or |
| * later. See the COPYING file in the top-level directory. |
| */ |
| |
| #ifndef USERFAULTFD_H |
| #define USERFAULTFD_H |
| |
| #include "qemu/osdep.h" |
| #include "exec/hwaddr.h" |
| #include <linux/userfaultfd.h> |
| |
| int uffd_query_features(uint64_t *features); |
| int uffd_create_fd(uint64_t features, bool non_blocking); |
| void uffd_close_fd(int uffd_fd); |
| int uffd_register_memory(int uffd_fd, void *addr, uint64_t length, |
| uint64_t mode, uint64_t *ioctls); |
| int uffd_unregister_memory(int uffd_fd, void *addr, uint64_t length); |
| int uffd_change_protection(int uffd_fd, void *addr, uint64_t length, |
| bool wp, bool dont_wake); |
| int uffd_copy_page(int uffd_fd, void *dst_addr, void *src_addr, |
| uint64_t length, bool dont_wake); |
| int uffd_zero_page(int uffd_fd, void *addr, uint64_t length, bool dont_wake); |
| int uffd_wakeup(int uffd_fd, void *addr, uint64_t length); |
| int uffd_read_events(int uffd_fd, struct uffd_msg *msgs, int count); |
| bool uffd_poll_events(int uffd_fd, int tmo); |
| |
| #endif /* USERFAULTFD_H */ |
