[PATCH 5.9 041/255] iommu/vt-d: Fix a bug for PDP check in prq_event_thread

Greg Kroah-Hartman
2020-11-17T16:11:50Z

From: Liu, Yi L <yi.l.liu@intel.com>

[ Upstream commit 71cd8e2d16703a9df5c86a9e19f4cba99316cc53 ]

In prq_event_thread(), the QI_PGRP_PDP is wrongly set by
'req->pasid_present' which should be replaced to
'req->priv_data_present'.

Fixes: 5b438f4ba315 ("iommu/vt-d: Support page request in scalable mode")
Signed-off-by: Liu, Yi L <yi.l.liu@intel.com>
Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/1604025444-6954-3-git-send-email-yi.y.sun@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iommu/intel/svm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c
index a71fbbddaa66e..20fa8c7fcd8e7 100644
--- a/drivers/iommu/intel/svm.c
+++ b/drivers/iommu/intel/svm.c
@@ -1001,7 +1001,7 @@ no_pasid:
resp.qw0 = QI_PGRP_PASID(req->pasid) |
QI_PGRP_DID(req->rid) |
QI_PGRP_PASID_P(req->pasid_present) |
- QI_PGRP_PDP(req->pasid_present) |
+ QI_PGRP_PDP(req->priv_data_present) |
QI_PGRP_RESP_CODE(result) |
QI_PGRP_RESP_TYPE;
resp.qw1 = QI_PGRP_IDX(req->prg_index) |
--
2.27.0