| Message ID | 1542746383-18288-5-git-send-email-kwankhede@nvidia.com |
|---|---|
| State | New |
| Headers | show |
| Series | Add migration support for VFIO device | expand |
* Kirti Wankhede (kwankhede@nvidia.com) wrote: > vfio_listerner_log_sync gets list of dirty pages from vendor driver and mark > those pages dirty. > > Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com> > Reviewed-by: Neo Jia <cjia@nvidia.com> > --- > hw/vfio/common.c | 32 ++++++++++++++++++++++++++++++++ > 1 file changed, 32 insertions(+) > > diff --git a/hw/vfio/common.c b/hw/vfio/common.c > index fb396cf00ac4..338aad7426f0 100644 > --- a/hw/vfio/common.c > +++ b/hw/vfio/common.c > @@ -697,9 +697,41 @@ static void vfio_listener_region_del(MemoryListener *listener, > } > } > > +static void vfio_listerner_log_sync(MemoryListener *listener, > + MemoryRegionSection *section) > +{ > + uint64_t start_addr, size, pfn_count; > + VFIOGroup *group; > + VFIODevice *vbasedev; > + > + QLIST_FOREACH(group, &vfio_group_list, next) { > + QLIST_FOREACH(vbasedev, &group->device_list, next) { > + switch (vbasedev->device_state) { > + case VFIO_DEVICE_STATE_MIGRATION_PRECOPY: > + case VFIO_DEVICE_STATE_MIGRATION_STOPNCOPY: > + continue; > + > + default: > + return; > + } > + } > + } Is that big loop just trying to find devices not in migration? Some comments would be good. Dave > + start_addr = TARGET_PAGE_ALIGN(section->offset_within_address_space); > + size = int128_get64(section->size); > + pfn_count = size >> TARGET_PAGE_BITS; > + > + QLIST_FOREACH(group, &vfio_group_list, next) { > + QLIST_FOREACH(vbasedev, &group->device_list, next) { > + vfio_get_dirty_page_list(vbasedev, start_addr, pfn_count); > + } > + } > +} > + > static const MemoryListener vfio_memory_listener = { > .region_add = vfio_listener_region_add, > .region_del = vfio_listener_region_del, > + .log_sync = vfio_listerner_log_sync, > }; > > static void vfio_listener_release(VFIOContainer *container) > -- > 2.7.0 > -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
diff --git a/hw/vfio/common.c b/hw/vfio/common.c index fb396cf00ac4..338aad7426f0 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -697,9 +697,41 @@ static void vfio_listener_region_del(MemoryListener *listener, } } +static void vfio_listerner_log_sync(MemoryListener *listener, + MemoryRegionSection *section) +{ + uint64_t start_addr, size, pfn_count; + VFIOGroup *group; + VFIODevice *vbasedev; + + QLIST_FOREACH(group, &vfio_group_list, next) { + QLIST_FOREACH(vbasedev, &group->device_list, next) { + switch (vbasedev->device_state) { + case VFIO_DEVICE_STATE_MIGRATION_PRECOPY: + case VFIO_DEVICE_STATE_MIGRATION_STOPNCOPY: + continue; + + default: + return; + } + } + } + + start_addr = TARGET_PAGE_ALIGN(section->offset_within_address_space); + size = int128_get64(section->size); + pfn_count = size >> TARGET_PAGE_BITS; + + QLIST_FOREACH(group, &vfio_group_list, next) { + QLIST_FOREACH(vbasedev, &group->device_list, next) { + vfio_get_dirty_page_list(vbasedev, start_addr, pfn_count); + } + } +} + static const MemoryListener vfio_memory_listener = { .region_add = vfio_listener_region_add, .region_del = vfio_listener_region_del, + .log_sync = vfio_listerner_log_sync, }; static void vfio_listener_release(VFIOContainer *container)