Lines Matching refs:userfaultfd

14 Userfaults are delivered and resolved through the userfaultfd syscall.
16 The userfaultfd (aside from registering and unregistering virtual
23    registered in the userfaultfd that allows userland to efficiently
30 userfaultfd runtime load never takes the mmap_sem for writing).
36 The userfaultfd once opened by invoking the syscall, can also be
40 (well of course unless they later try to use the userfaultfd
46 When first opened the userfaultfd must be enabled invoking the
57 Once the userfaultfd has been enabled the UFFDIO_REGISTER ioctl should
59 register a memory range in the userfaultfd by setting the
72 memory from the userfaultfd registered range). This means a userfault
86 QEMU/KVM is using the userfaultfd syscall to implement postcopy live
90 userfaultfd abstraction is generic enough that not a single line of
112 ioctls on the userfaultfd in order to map the received pages into the
116 poll() to the userfaultfd in parallel. When a POLLIN event is
118 the userfaultfd and receives the fault address (or -EAGAIN in case the