qemu/util/userfaultfd.c

148  * uffd_register_memory: register memory range via UFFD-IO
153  * @addr: base address of memory range
154  * @length: length of memory range
163     uffd_register.range.start = (uintptr_t) addr;  in uffd_register_memory()
164     uffd_register.range.len = length;  in uffd_register_memory()
179  * uffd_unregister_memory: un-register memory range with UFFD-IO
184  * @addr: base address of memory range
185  * @length: length of memory range
203  * uffd_change_protection: protect/un-protect memory range for writes via UFFD-IO
208  * @addr: base address of memory range
209  * @length: length of memory range
218     uffd_writeprotect.range.start = (uintptr_t) addr;  in uffd_change_protection()
219     uffd_writeprotect.range.len = length;  in uffd_change_protection()
238  * uffd_copy_page: copy range of pages to destination via UFFD-IO
240  * Copy range of source pages to the destination to resolve
241  * missing page fault somewhere in the destination range.
248  * @length: length of the range to copy
273  * uffd_zero_page: fill range of pages with zeroes via UFFD-IO
275  * Fill range pages with zeroes to resolve missing page fault within the range.
281  * @length: length of the range to fill with zeroes
288     uffd_zeropage.range.start = (uintptr_t) addr;  in uffd_zero_page()
289     uffd_zeropage.range.len = length;  in uffd_zero_page()
306  * Wake up threads waiting on any page/pages from the designated range.
309  * for the whole memory range are satisfied in a single call to uffd_wakeup().
315  * @length: length of the range