diff options
| author | Dmitry Vyukov <dvyukov@google.com> | 2021-10-21 14:18:08 +0200 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2021-10-21 15:05:59 +0200 |
| commit | c5cb7da830c941bb15b077cb5e4591b2e2e54554 (patch) | |
| tree | 5e606169f3b8a209f078f82d217368c95f959aa7 /sys/linux/uffd.txt | |
| parent | 7841d8b1babc796e48daf138d80288c2ba1c6ea2 (diff) | |
sys/linux: extend userfaultfd descriptions
2 new ioctl's were added + some new flags:
https://elixir.bootlin.com/linux/v5.15-rc6/source/include/uapi/linux/userfaultfd.h#L82
Diffstat (limited to 'sys/linux/uffd.txt')
| -rw-r--r-- | sys/linux/uffd.txt | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/sys/linux/uffd.txt b/sys/linux/uffd.txt index 807baaef3..811cf2e78 100644 --- a/sys/linux/uffd.txt +++ b/sys/linux/uffd.txt @@ -15,12 +15,14 @@ ioctl$UFFDIO_UNREGISTER(fd fd_uffd, cmd const[UFFDIO_UNREGISTER], arg ptr[in, uf ioctl$UFFDIO_WAKE(fd fd_uffd, cmd const[UFFDIO_WAKE], arg ptr[in, uffdio_range]) ioctl$UFFDIO_COPY(fd fd_uffd, cmd const[UFFDIO_COPY], arg ptr[in, uffdio_copy]) ioctl$UFFDIO_ZEROPAGE(fd fd_uffd, cmd const[UFFDIO_ZEROPAGE], arg ptr[in, uffdio_zeropage]) +ioctl$UFFDIO_WRITEPROTECT(fd fd_uffd, cmd const[UFFDIO_WRITEPROTECT], arg ptr[in, uffdio_writeprotect]) +ioctl$UFFDIO_CONTINUE(fd fd_uffd, cmd const[UFFDIO_CONTINUE], arg ptr[in, uffdio_continue]) -userfaultfd_flags = O_NONBLOCK, O_CLOEXEC -uffdio_register_mode = UFFDIO_REGISTER_MODE_MISSING, UFFDIO_REGISTER_MODE_WP -uffdio_copy_mode = UFFDIO_COPY_MODE_DONTWAKE +userfaultfd_flags = O_NONBLOCK, O_CLOEXEC, UFFD_USER_MODE_ONLY +uffdio_register_mode = UFFDIO_REGISTER_MODE_MISSING, UFFDIO_REGISTER_MODE_WP, UFFDIO_REGISTER_MODE_MINOR +uffdio_copy_mode = UFFDIO_COPY_MODE_DONTWAKE, UFFDIO_COPY_MODE_WP uffdio_zero_mode = UFFDIO_ZEROPAGE_MODE_DONTWAKE -uffdio_features = UFFD_FEATURE_PAGEFAULT_FLAG_WP, UFFD_FEATURE_EVENT_FORK, UFFD_FEATURE_EVENT_REMAP, UFFD_FEATURE_EVENT_REMOVE, UFFD_FEATURE_MISSING_HUGETLBFS, UFFD_FEATURE_MISSING_SHMEM, UFFD_FEATURE_EVENT_UNMAP +uffdio_features = UFFD_FEATURE_PAGEFAULT_FLAG_WP, UFFD_FEATURE_EVENT_FORK, UFFD_FEATURE_EVENT_REMAP, UFFD_FEATURE_EVENT_REMOVE, UFFD_FEATURE_MISSING_HUGETLBFS, UFFD_FEATURE_MISSING_SHMEM, UFFD_FEATURE_EVENT_UNMAP, UFFD_FEATURE_SIGBUS, UFFD_FEATURE_THREAD_ID, UFFD_FEATURE_MINOR_HUGETLBFS, UFFD_FEATURE_MINOR_SHMEM uffdio_api { api const[UFFD_API, int64] @@ -52,3 +54,18 @@ uffdio_zeropage { mode flags[uffdio_zero_mode, int64] zeropg const[0, int64] } + +uffdio_writeprotect { + range uffdio_range + mode flags[uffdio_writeprotect_mode, int64] +} + +uffdio_writeprotect_mode = UFFDIO_WRITEPROTECT_MODE_WP, UFFDIO_WRITEPROTECT_MODE_DONTWAKE + +uffdio_continue { + range uffdio_range + mode flags[uffdio_continue_mode, int64] + mapped int64 (out) +} + +uffdio_continue_mode = UFFDIO_CONTINUE_MODE_DONTWAKE |