diff mbox series

[v3,20/33] iommu/mediatek: Allow IOMMU_DOMAIN_UNMANAGED for PCIe VFIO

Message ID 20210923115840.17813-21-yong.wu@mediatek.com (mailing list archive)
State New, archived
Headers show
Series MT8195 IOMMU SUPPORT | expand

Commit Message

Yong Wu (吴勇) Sept. 23, 2021, 11:58 a.m. UTC 
Allow the type IOMMU_DOMAIN_UNMANAGED since vfio_iommu_type1.c always call
iommu_domain_alloc. The PCIe EP works ok when going through vfio.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
---
 drivers/iommu/mtk_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

AngeloGioacchino Del Regno Jan. 4, 2022, 3:54 p.m. UTC | #1 
Il 23/09/21 13:58, Yong Wu ha scritto:
> Allow the type IOMMU_DOMAIN_UNMANAGED since vfio_iommu_type1.c always call
> iommu_domain_alloc. The PCIe EP works ok when going through vfio.
> 
> Signed-off-by: Yong Wu <yong.wu@mediatek.com>



Acked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
diff mbox series

Patch

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 2818b984c905..d103e4f33078 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -450,7 +450,7 @@  static struct iommu_domain *mtk_iommu_domain_alloc(unsigned type)
 {
 	struct mtk_iommu_domain *dom;
 
-	if (type != IOMMU_DOMAIN_DMA)
+	if (type != IOMMU_DOMAIN_DMA && type != IOMMU_DOMAIN_UNMANAGED)
 		return NULL;
 
 	dom = kzalloc(sizeof(*dom), GFP_KERNEL);