On 04/07/2018 16:50, Dan Williams wrote: >> + return is_zone_device_page(page) && >> + ((page->pgmap->type == MEMORY_DEVICE_FS_DAX) || >> + (page->pgmap->type == MEMORY_DEVICE_DEV_DAX)); > Jerome, might there be any use case to pass MEMORY_DEVICE_PUBLIC > memory to a guest vm? > An even better reason to place this in mm.h. :) There should be an function to tell you if a reserved page has accessed/dirty bits etc., that's all that KVM needs to know. Paolo
