Lines Matching +full:non +full:- +full:live

10 Userfaults allow the implementation of on-demand paging from userland
38 Vmas are not suitable for page- (or hugepage) granular fault tracking
48 is a corner case that would currently return ``-EBUSY``).
68 - The ``UFFD_FEATURE_EVENT_*`` flags indicate that various other events
70   detail below in the `Non-cooperative userfaultfd`_ section.
72 - ``UFFD_FEATURE_MISSING_HUGETLBFS`` and ``UFFD_FEATURE_MISSING_SHMEM``
78 - ``UFFD_FEATURE_MINOR_HUGETLBFS`` indicates that the kernel supports
102 user-faulted page.
105 --------------------
109 - ``UFFDIO_COPY`` atomically copies some existing page contents from
112 - ``UFFDIO_ZEROPAGE`` atomically zeros the new page.
114 - ``UFFDIO_CONTINUE`` maps an existing, previously-populated page.
117 see a half-populated page, since readers will keep userfaulting until the
127 - For ``UFFDIO_REGISTER_MODE_MISSING`` faults, the fault needs to be
133 - For ``UFFDIO_REGISTER_MODE_MINOR`` faults, there is an existing page (in
141 - You can tell which kind of fault occurred by examining
145 - None of the page-delivering ioctls default to the range that you
149 - You get the address of the access that triggered the missing page
155 - Be sure to test for all errors including
160 ---------------------------
192 QEMU/KVM is using the ``userfaultfd`` syscall to implement postcopy live
193 migration. Postcopy live migration is one form of memory
197 KVM kernel code had to be modified in order to add postcopy live
206 It is generally beneficial to run one pass of precopy live migration
207 just before starting postcopy live migration, in order to avoid
210 The implementation of postcopy live migration currently uses one
224 the ``userfaultfd`` and receives the fault address (or ``-EAGAIN`` in case the
241 doesn't need to keep any per-page state bitmap relative to the live
242 migration around and a single per-page bitmap has to be maintained in
252 Non-cooperative userfaultfd
271 	non-cooperative process moves a virtual memory area to a
303 asynchronously and the non-cooperative process resumes execution as
307 return ``-ENOSPC`` when the monitored process exits at the time of
308 ``UFFDIO_COPY``, and ``-ENOENT``, when the non-cooperative process has changed
313 single threaded non-cooperative ``userfaultfd`` manager implementations. A
316 non cooperative manager, for example to allow ``UFFDIO_COPY`` ioctls to