[PATCH v7 3/5] migration: support UFFD write fault processing in ram_save_iterate()

2020-12-17 Thread Andrey Gruzdev via
In this particular implementation the same single migration thread is responsible for both normal linear dirty page migration and procesing UFFD page fault events. Processing write faults includes reading UFFD file descriptor, finding respective RAM block and saving faulting page to the migration

[PATCH v7 3/5] migration: support UFFD write fault processing in ram_save_iterate()

2020-12-17 Thread Andrey Gruzdev via
In this particular implementation the same single migration thread is responsible for both normal linear dirty page migration and procesing UFFD page fault events. Processing write faults includes reading UFFD file descriptor, finding respective RAM block and saving faulting page to the migration