intel-iommu: VT-d page table to support snooping control bit
The user can request to enable snooping control through VT-d page table.
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/include/linux/dma_remapping.h b/include/linux/dma_remapping.h
index af1dab4..1a455f1 100644
--- a/include/linux/dma_remapping.h
+++ b/include/linux/dma_remapping.h
@@ -11,6 +11,7 @@
#define DMA_PTE_READ (1)
#define DMA_PTE_WRITE (2)
+#define DMA_PTE_SNP (1 << 11)
struct intel_iommu;
struct dmar_domain;