[PATCH 02/19] iommu/vt-d: Init QI before root entry is allocated

[Joerg Roedel]

From: Joerg Roedel <jroedel@xxxxxxx>

QI needs to be available when we write the root entry into
hardware because flushes might be necessary after this.

Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
---
 drivers/iommu/intel-iommu.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 14af51d..b380fd1 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2783,6 +2783,8 @@ static int __init init_dmars(void)
 	for_each_active_iommu(iommu, drhd) {
 		g_iommus[iommu->seq_id] = iommu;
 
+		intel_iommu_init_qi(iommu);
+
 		ret = iommu_init_domains(iommu);
 		if (ret)
 			goto free_iommu;
@@ -2799,9 +2801,6 @@ static int __init init_dmars(void)
 			hw_pass_through = 0;
 	}
 
-	for_each_active_iommu(iommu, drhd)
-		intel_iommu_init_qi(iommu);
-
 	if (iommu_pass_through)
 		iommu_identity_mapping |= IDENTMAP_ALL;
 
-- 
1.9.1

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