commit 907fea3491d52063bb37b1f1ce0cf8a4ae70944c
author David Woodhouse <David.Woodhouse@intel.com> Tue Oct 13 14:11:13 2015 +0100
committer David Woodhouse <David.Woodhouse@intel.com> Thu Oct 15 13:22:35 2015 +0100
tree 87bd60e81510676710fd1cedeb678c42e8d9704b
parent 2f26e0a9c9860db290d63e9d85c2c8c09813677f

iommu/vt-d: Implement deferred invalidate for SVM

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

drivers/iommu/intel-iommu.c

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 60b66d2..58ecd52 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -4981,6 +4981,8 @@
 				ctx_lo |= CONTEXT_TT_PT_PASID << 2;
 		}
 		ctx_lo |= CONTEXT_PASIDE;
+		if (iommu->pasid_state_table)
+			ctx_lo |= CONTEXT_DINVE;
 		context[0].lo = ctx_lo;
 		wmb();
 		iommu->flush.flush_context(iommu, sdev->did, sdev->sid,