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129 lines
4.4 KiB
129 lines
4.4 KiB
4 months ago
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/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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*** To edit the content of this header, modify the corresponding
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*** source file (e.g. under external/kernel-headers/original/) then
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*** run bionic/libc/kernel/tools/update_all.py
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***
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*** Any manual change here will be lost the next time this script will
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*** be run. You've been warned!
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***
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****************************************************************************
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****************************************************************************/
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#ifndef _LINUX_USERFAULTFD_H
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#define _LINUX_USERFAULTFD_H
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#include <linux/types.h>
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#define UFFD_API ((__u64) 0xAA)
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#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)
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#define UFFD_API_IOCTLS ((__u64) 1 << _UFFDIO_REGISTER | (__u64) 1 << _UFFDIO_UNREGISTER | (__u64) 1 << _UFFDIO_API)
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#define UFFD_API_RANGE_IOCTLS ((__u64) 1 << _UFFDIO_WAKE | (__u64) 1 << _UFFDIO_COPY | (__u64) 1 << _UFFDIO_ZEROPAGE | (__u64) 1 << _UFFDIO_WRITEPROTECT)
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#define UFFD_API_RANGE_IOCTLS_BASIC ((__u64) 1 << _UFFDIO_WAKE | (__u64) 1 << _UFFDIO_COPY)
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#define _UFFDIO_REGISTER (0x00)
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#define _UFFDIO_UNREGISTER (0x01)
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#define _UFFDIO_WAKE (0x02)
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#define _UFFDIO_COPY (0x03)
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#define _UFFDIO_ZEROPAGE (0x04)
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#define _UFFDIO_WRITEPROTECT (0x06)
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#define _UFFDIO_API (0x3F)
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#define UFFDIO 0xAA
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#define UFFDIO_API _IOWR(UFFDIO, _UFFDIO_API, struct uffdio_api)
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#define UFFDIO_REGISTER _IOWR(UFFDIO, _UFFDIO_REGISTER, struct uffdio_register)
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#define UFFDIO_UNREGISTER _IOR(UFFDIO, _UFFDIO_UNREGISTER, struct uffdio_range)
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#define UFFDIO_WAKE _IOR(UFFDIO, _UFFDIO_WAKE, struct uffdio_range)
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#define UFFDIO_COPY _IOWR(UFFDIO, _UFFDIO_COPY, struct uffdio_copy)
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#define UFFDIO_ZEROPAGE _IOWR(UFFDIO, _UFFDIO_ZEROPAGE, struct uffdio_zeropage)
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#define UFFDIO_WRITEPROTECT _IOWR(UFFDIO, _UFFDIO_WRITEPROTECT, struct uffdio_writeprotect)
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struct uffd_msg {
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__u8 event;
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__u8 reserved1;
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__u16 reserved2;
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__u32 reserved3;
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union {
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struct {
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__u64 flags;
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__u64 address;
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union {
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__u32 ptid;
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} feat;
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} pagefault;
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struct {
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__u32 ufd;
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} fork;
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struct {
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__u64 from;
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__u64 to;
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__u64 len;
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} remap;
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struct {
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__u64 start;
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__u64 end;
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} remove;
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struct {
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__u64 reserved1;
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__u64 reserved2;
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__u64 reserved3;
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} reserved;
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} arg;
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} __packed;
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#define UFFD_EVENT_PAGEFAULT 0x12
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#define UFFD_EVENT_FORK 0x13
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#define UFFD_EVENT_REMAP 0x14
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#define UFFD_EVENT_REMOVE 0x15
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#define UFFD_EVENT_UNMAP 0x16
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#define UFFD_PAGEFAULT_FLAG_WRITE (1 << 0)
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#define UFFD_PAGEFAULT_FLAG_WP (1 << 1)
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struct uffdio_api {
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__u64 api;
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#define UFFD_FEATURE_PAGEFAULT_FLAG_WP (1 << 0)
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#define UFFD_FEATURE_EVENT_FORK (1 << 1)
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#define UFFD_FEATURE_EVENT_REMAP (1 << 2)
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#define UFFD_FEATURE_EVENT_REMOVE (1 << 3)
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#define UFFD_FEATURE_MISSING_HUGETLBFS (1 << 4)
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#define UFFD_FEATURE_MISSING_SHMEM (1 << 5)
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#define UFFD_FEATURE_EVENT_UNMAP (1 << 6)
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#define UFFD_FEATURE_SIGBUS (1 << 7)
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#define UFFD_FEATURE_THREAD_ID (1 << 8)
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__u64 features;
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__u64 ioctls;
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};
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struct uffdio_range {
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__u64 start;
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__u64 len;
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};
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struct uffdio_register {
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struct uffdio_range range;
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#define UFFDIO_REGISTER_MODE_MISSING ((__u64) 1 << 0)
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#define UFFDIO_REGISTER_MODE_WP ((__u64) 1 << 1)
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__u64 mode;
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__u64 ioctls;
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};
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struct uffdio_copy {
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__u64 dst;
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__u64 src;
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__u64 len;
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#define UFFDIO_COPY_MODE_DONTWAKE ((__u64) 1 << 0)
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#define UFFDIO_COPY_MODE_WP ((__u64) 1 << 1)
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__u64 mode;
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__s64 copy;
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};
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struct uffdio_zeropage {
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struct uffdio_range range;
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#define UFFDIO_ZEROPAGE_MODE_DONTWAKE ((__u64) 1 << 0)
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__u64 mode;
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__s64 zeropage;
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};
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struct uffdio_writeprotect {
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struct uffdio_range range;
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#define UFFDIO_WRITEPROTECT_MODE_WP ((__u64) 1 << 0)
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#define UFFDIO_WRITEPROTECT_MODE_DONTWAKE ((__u64) 1 << 1)
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__u64 mode;
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};
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#define UFFD_USER_MODE_ONLY 1
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#endif
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