| /* |
| * This file is auto-generated. Modifications will be lost. |
| * |
| * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/ |
| * for more information. |
| */ |
| #ifndef _LINUX_USERFAULTFD_H |
| #define _LINUX_USERFAULTFD_H |
| #include <linux/types.h> |
| #define USERFAULTFD_IOC 0xAA |
| #define USERFAULTFD_IOC_NEW _IO(USERFAULTFD_IOC, 0x00) |
| #define UFFD_API ((__u64) 0xAA) |
| #define UFFD_API_REGISTER_MODES (UFFDIO_REGISTER_MODE_MISSING | UFFDIO_REGISTER_MODE_WP | UFFDIO_REGISTER_MODE_MINOR) |
| #define UFFD_API_FEATURES (UFFD_FEATURE_PAGEFAULT_FLAG_WP | UFFD_FEATURE_EVENT_FORK | UFFD_FEATURE_EVENT_REMAP | UFFD_FEATURE_EVENT_REMOVE | UFFD_FEATURE_EVENT_UNMAP | UFFD_FEATURE_MISSING_HUGETLBFS | UFFD_FEATURE_MISSING_SHMEM | UFFD_FEATURE_SIGBUS | UFFD_FEATURE_THREAD_ID | UFFD_FEATURE_MINOR_HUGETLBFS | UFFD_FEATURE_MINOR_SHMEM | UFFD_FEATURE_EXACT_ADDRESS | UFFD_FEATURE_WP_HUGETLBFS_SHMEM | UFFD_FEATURE_WP_UNPOPULATED | UFFD_FEATURE_POISON | UFFD_FEATURE_WP_ASYNC | UFFD_FEATURE_MOVE) |
| #define UFFD_API_IOCTLS ((__u64) 1 << _UFFDIO_REGISTER | (__u64) 1 << _UFFDIO_UNREGISTER | (__u64) 1 << _UFFDIO_API) |
| #define UFFD_API_RANGE_IOCTLS ((__u64) 1 << _UFFDIO_WAKE | (__u64) 1 << _UFFDIO_COPY | (__u64) 1 << _UFFDIO_ZEROPAGE | (__u64) 1 << _UFFDIO_MOVE | (__u64) 1 << _UFFDIO_WRITEPROTECT | (__u64) 1 << _UFFDIO_CONTINUE | (__u64) 1 << _UFFDIO_POISON) |
| #define UFFD_API_RANGE_IOCTLS_BASIC ((__u64) 1 << _UFFDIO_WAKE | (__u64) 1 << _UFFDIO_COPY | (__u64) 1 << _UFFDIO_WRITEPROTECT | (__u64) 1 << _UFFDIO_CONTINUE | (__u64) 1 << _UFFDIO_POISON) |
| #define _UFFDIO_REGISTER (0x00) |
| #define _UFFDIO_UNREGISTER (0x01) |
| #define _UFFDIO_WAKE (0x02) |
| #define _UFFDIO_COPY (0x03) |
| #define _UFFDIO_ZEROPAGE (0x04) |
| #define _UFFDIO_MOVE (0x05) |
| #define _UFFDIO_WRITEPROTECT (0x06) |
| #define _UFFDIO_CONTINUE (0x07) |
| #define _UFFDIO_POISON (0x08) |
| #define _UFFDIO_API (0x3F) |
| #define UFFDIO 0xAA |
| #define UFFDIO_API _IOWR(UFFDIO, _UFFDIO_API, struct uffdio_api) |
| #define UFFDIO_REGISTER _IOWR(UFFDIO, _UFFDIO_REGISTER, struct uffdio_register) |
| #define UFFDIO_UNREGISTER _IOR(UFFDIO, _UFFDIO_UNREGISTER, struct uffdio_range) |
| #define UFFDIO_WAKE _IOR(UFFDIO, _UFFDIO_WAKE, struct uffdio_range) |
| #define UFFDIO_COPY _IOWR(UFFDIO, _UFFDIO_COPY, struct uffdio_copy) |
| #define UFFDIO_ZEROPAGE _IOWR(UFFDIO, _UFFDIO_ZEROPAGE, struct uffdio_zeropage) |
| #define UFFDIO_MOVE _IOWR(UFFDIO, _UFFDIO_MOVE, struct uffdio_move) |
| #define UFFDIO_WRITEPROTECT _IOWR(UFFDIO, _UFFDIO_WRITEPROTECT, struct uffdio_writeprotect) |
| #define UFFDIO_CONTINUE _IOWR(UFFDIO, _UFFDIO_CONTINUE, struct uffdio_continue) |
| #define UFFDIO_POISON _IOWR(UFFDIO, _UFFDIO_POISON, struct uffdio_poison) |
| struct uffd_msg { |
| __u8 event; |
| __u8 reserved1; |
| __u16 reserved2; |
| __u32 reserved3; |
| union { |
| struct { |
| __u64 flags; |
| __u64 address; |
| union { |
| __u32 ptid; |
| } feat; |
| } pagefault; |
| struct { |
| __u32 ufd; |
| } fork; |
| struct { |
| __u64 from; |
| __u64 to; |
| __u64 len; |
| } remap; |
| struct { |
| __u64 start; |
| __u64 end; |
| } remove; |
| struct { |
| __u64 reserved1; |
| __u64 reserved2; |
| __u64 reserved3; |
| } reserved; |
| } arg; |
| } __attribute__((__packed__)); |
| #define UFFD_EVENT_PAGEFAULT 0x12 |
| #define UFFD_EVENT_FORK 0x13 |
| #define UFFD_EVENT_REMAP 0x14 |
| #define UFFD_EVENT_REMOVE 0x15 |
| #define UFFD_EVENT_UNMAP 0x16 |
| #define UFFD_PAGEFAULT_FLAG_WRITE (1 << 0) |
| #define UFFD_PAGEFAULT_FLAG_WP (1 << 1) |
| #define UFFD_PAGEFAULT_FLAG_MINOR (1 << 2) |
| struct uffdio_api { |
| __u64 api; |
| #define UFFD_FEATURE_PAGEFAULT_FLAG_WP (1 << 0) |
| #define UFFD_FEATURE_EVENT_FORK (1 << 1) |
| #define UFFD_FEATURE_EVENT_REMAP (1 << 2) |
| #define UFFD_FEATURE_EVENT_REMOVE (1 << 3) |
| #define UFFD_FEATURE_MISSING_HUGETLBFS (1 << 4) |
| #define UFFD_FEATURE_MISSING_SHMEM (1 << 5) |
| #define UFFD_FEATURE_EVENT_UNMAP (1 << 6) |
| #define UFFD_FEATURE_SIGBUS (1 << 7) |
| #define UFFD_FEATURE_THREAD_ID (1 << 8) |
| #define UFFD_FEATURE_MINOR_HUGETLBFS (1 << 9) |
| #define UFFD_FEATURE_MINOR_SHMEM (1 << 10) |
| #define UFFD_FEATURE_EXACT_ADDRESS (1 << 11) |
| #define UFFD_FEATURE_WP_HUGETLBFS_SHMEM (1 << 12) |
| #define UFFD_FEATURE_WP_UNPOPULATED (1 << 13) |
| #define UFFD_FEATURE_POISON (1 << 14) |
| #define UFFD_FEATURE_WP_ASYNC (1 << 15) |
| #define UFFD_FEATURE_MOVE (1 << 16) |
| __u64 features; |
| __u64 ioctls; |
| }; |
| struct uffdio_range { |
| __u64 start; |
| __u64 len; |
| }; |
| struct uffdio_register { |
| struct uffdio_range range; |
| #define UFFDIO_REGISTER_MODE_MISSING ((__u64) 1 << 0) |
| #define UFFDIO_REGISTER_MODE_WP ((__u64) 1 << 1) |
| #define UFFDIO_REGISTER_MODE_MINOR ((__u64) 1 << 2) |
| __u64 mode; |
| __u64 ioctls; |
| }; |
| struct uffdio_copy { |
| __u64 dst; |
| __u64 src; |
| __u64 len; |
| #define UFFDIO_COPY_MODE_DONTWAKE ((__u64) 1 << 0) |
| #define UFFDIO_COPY_MODE_WP ((__u64) 1 << 1) |
| __u64 mode; |
| __s64 copy; |
| }; |
| struct uffdio_zeropage { |
| struct uffdio_range range; |
| #define UFFDIO_ZEROPAGE_MODE_DONTWAKE ((__u64) 1 << 0) |
| __u64 mode; |
| __s64 zeropage; |
| }; |
| struct uffdio_writeprotect { |
| struct uffdio_range range; |
| #define UFFDIO_WRITEPROTECT_MODE_WP ((__u64) 1 << 0) |
| #define UFFDIO_WRITEPROTECT_MODE_DONTWAKE ((__u64) 1 << 1) |
| __u64 mode; |
| }; |
| struct uffdio_continue { |
| struct uffdio_range range; |
| #define UFFDIO_CONTINUE_MODE_DONTWAKE ((__u64) 1 << 0) |
| #define UFFDIO_CONTINUE_MODE_WP ((__u64) 1 << 1) |
| __u64 mode; |
| __s64 mapped; |
| }; |
| struct uffdio_poison { |
| struct uffdio_range range; |
| #define UFFDIO_POISON_MODE_DONTWAKE ((__u64) 1 << 0) |
| __u64 mode; |
| __s64 updated; |
| }; |
| struct uffdio_move { |
| __u64 dst; |
| __u64 src; |
| __u64 len; |
| #define UFFDIO_MOVE_MODE_DONTWAKE ((__u64) 1 << 0) |
| #define UFFDIO_MOVE_MODE_ALLOW_SRC_HOLES ((__u64) 1 << 1) |
| __u64 mode; |
| __s64 move; |
| }; |
| #define UFFD_USER_MODE_ONLY 1 |
| #endif |