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| author | David S. Miller <davem@davemloft.net> | 2017-02-11 02:31:11 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-02-11 02:31:11 -0500 |
| commit | 35eeacf1820a08305c2b0960febfa190f5a6dd63 (patch) | |
| tree | f1227c7384ee01d3f029cc5f82223234e6456c5f /drivers/vfio/vfio_iommu_spapr_tce.c | |
| parent | bed45f79a2afc9d7c279b880dfcac8f27d513b50 (diff) | |
| parent | 1ee18329fae936089c6c599250ae92482ff2b81f (diff) | |
| download | linux-35eeacf1820a08305c2b0960febfa190f5a6dd63.tar.gz linux-35eeacf1820a08305c2b0960febfa190f5a6dd63.tar.bz2 linux-35eeacf1820a08305c2b0960febfa190f5a6dd63.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/vfio/vfio_iommu_spapr_tce.c')
| -rw-r--r-- | drivers/vfio/vfio_iommu_spapr_tce.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/vfio/vfio_iommu_spapr_tce.c b/drivers/vfio/vfio_iommu_spapr_tce.c index 7690e5bf3cf1..59b3f62a2d64 100644 --- a/drivers/vfio/vfio_iommu_spapr_tce.c +++ b/drivers/vfio/vfio_iommu_spapr_tce.c @@ -1245,6 +1245,8 @@ static void tce_iommu_release_ownership_ddw(struct tce_container *container, static long tce_iommu_take_ownership_ddw(struct tce_container *container, struct iommu_table_group *table_group) { + long i, ret = 0; + if (!table_group->ops->create_table || !table_group->ops->set_window || !table_group->ops->release_ownership) { WARN_ON_ONCE(1); @@ -1253,7 +1255,27 @@ static long tce_iommu_take_ownership_ddw(struct tce_container *container, table_group->ops->take_ownership(table_group); + /* Set all windows to the new group */ + for (i = 0; i < IOMMU_TABLE_GROUP_MAX_TABLES; ++i) { + struct iommu_table *tbl = container->tables[i]; + + if (!tbl) + continue; + + ret = table_group->ops->set_window(table_group, i, tbl); + if (ret) + goto release_exit; + } + return 0; + +release_exit: + for (i = 0; i < IOMMU_TABLE_GROUP_MAX_TABLES; ++i) + table_group->ops->unset_window(table_group, i); + + table_group->ops->release_ownership(table_group); + + return ret; } static int tce_iommu_attach_group(void *iommu_data, |