Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 54de285b authored by Alexey Kardashevskiy's avatar Alexey Kardashevskiy Committed by Michael Ellerman
Browse files

vfio/spapr: Relax the IOMMU compatibility check 



We are going to have multiple different types of PHB on the same system
with POWER8 + NVLink and PHBs will have different IOMMU ops. However
we only really care about one callback - create_table - so we can
relax the compatibility check here.

Signed-off-by: default avatarAlexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Acked-by: default avatarAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent c8ceacc2

drivers/vfio/vfio_iommu_spapr_tce.c

+2 −1
Original line number Diff line number Diff line
@@ -1188,7 +1188,8 @@ static int tce_iommu_attach_group(void *iommu_data, 
			goto unlock_exit;

		}

		table_group_tmp = iommu_group_get_iommudata(tcegrp->grp);

		if (table_group_tmp->ops != table_group->ops) {

		if (table_group_tmp->ops->create_table !=

				table_group->ops->create_table) {

			pr_warn("tce_vfio: Group %d is incompatible with group %d\n",

					iommu_group_id(iommu_group),

					iommu_group_id(tcegrp->grp));