[PATCH 11/19] iommu/vt-d: Don't disable translation prior to OS handover

[Joerg Roedel]

From: Joerg Roedel <jroedel@xxxxxxx>

For all the copy-translation code to run, we have to keep
translation enabled in intel_iommu_init(). So remove the
code disabling it.

Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
---
 drivers/iommu/intel-iommu.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index e23d5b4..b47def6 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -4469,13 +4469,6 @@ int __init intel_iommu_init(void)
 		goto out_free_dmar;
 	}
 
-	/*
-	 * Disable translation if already enabled prior to OS handover.
-	 */
-	for_each_active_iommu(iommu, drhd)
-		if (iommu->gcmd & DMA_GCMD_TE)
-			iommu_disable_translation(iommu);
-
 	if (dmar_dev_scope_init() < 0) {
 		if (force_on)
 			panic("tboot: Failed to initialize DMAR device scope\n");
-- 
1.9.1

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