diff options
| author | Kirti Wankhede <kwankhede@nvidia.com> | 2020-10-26 15:06:21 +0530 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2020-11-01 12:30:50 -0700 |
| commit | 87ea529c5020124440cd892a038dffe6057fd613 (patch) | |
| tree | 31dc479983a101aa36978d63ec9d08854e7a38e0 /hw/vfio/migration.c | |
| parent | 74ee653799f93dfb119de9a248bdf0a85a68904f (diff) | |
vfio: Get migration capability flags for container
Added helper functions to get IOMMU info capability chain.
Added function to get migration capability information from that
capability chain for IOMMU container.
Similar change was proposed earlier:
https://lists.gnu.org/archive/html/qemu-devel/2018-05/msg03759.html
Disable migration for devices if IOMMU module doesn't support migration
capability.
Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
Cc: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Cc: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'hw/vfio/migration.c')
| -rw-r--r-- | hw/vfio/migration.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c index 1af0fce874..39503b49e3 100644 --- a/hw/vfio/migration.c +++ b/hw/vfio/migration.c @@ -832,9 +832,14 @@ err: int vfio_migration_probe(VFIODevice *vbasedev, Error **errp) { + VFIOContainer *container = vbasedev->group->container; struct vfio_region_info *info = NULL; Error *local_err = NULL; - int ret; + int ret = -ENOTSUP; + + if (!container->dirty_pages_supported) { + goto add_blocker; + } ret = vfio_get_dev_region_info(vbasedev, VFIO_REGION_TYPE_MIGRATION, VFIO_REGION_SUBTYPE_MIGRATION, &info); |