/* * 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 #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