[RFC v1 2/2] powerpc/pseries/iommu: Use dma_iommu_ops for Secure VMs aswell.
Ram Pai
linuxram at us.ibm.com
Tue Nov 5 08:28:43 AEDT 2019
This enables IOMMU support for pseries Secure VMs.
Signed-off-by: Ram Pai <linuxram at us.ibm.com>
---
arch/powerpc/platforms/pseries/iommu.c | 10 +---------
1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 07f0847..189717b 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1333,15 +1333,7 @@ void iommu_init_early_pSeries(void)
of_reconfig_notifier_register(&iommu_reconfig_nb);
register_memory_notifier(&iommu_mem_nb);
- /*
- * Secure guest memory is inacessible to devices so regular DMA isn't
- * possible.
- *
- * In that case keep devices' dma_map_ops as NULL so that the generic
- * DMA code path will use SWIOTLB to bounce buffers for DMA.
- */
- if (!is_secure_guest())
- set_pci_dma_ops(&dma_iommu_ops);
+ set_pci_dma_ops(&dma_iommu_ops);
}
static int __init disable_multitce(char *str)
--
1.8.3.1
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