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Message-Id: <1592926996-47914-2-git-send-email-jacob.jun.pan@linux.intel.com>
Date: Tue, 23 Jun 2020 08:43:10 -0700
From: Jacob Pan <jacob.jun.pan@...ux.intel.com>
To: iommu@...ts.linux-foundation.org,
LKML <linux-kernel@...r.kernel.org>,
"Lu Baolu" <baolu.lu@...ux.intel.com>,
Joerg Roedel <joro@...tes.org>,
David Woodhouse <dwmw2@...radead.org>
Cc: Yi Liu <yi.l.liu@...el.com>, "Tian, Kevin" <kevin.tian@...el.com>,
Raj Ashok <ashok.raj@...el.com>,
Eric Auger <eric.auger@...hat.com>,
Jacob Pan <jacob.jun.pan@...ux.intel.com>
Subject: [PATCH 1/7] iommu/vt-d: Enforce PASID devTLB field mask
From: Liu Yi L <yi.l.liu@...el.com>
Set proper masks to avoid invalid input spillover to reserved bits.
Signed-off-by: Liu Yi L <yi.l.liu@...el.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@...ux.intel.com>
---
include/linux/intel-iommu.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index 4100bd224f5c..729386ca8122 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -380,8 +380,8 @@ enum {
#define QI_DEV_EIOTLB_ADDR(a) ((u64)(a) & VTD_PAGE_MASK)
#define QI_DEV_EIOTLB_SIZE (((u64)1) << 11)
-#define QI_DEV_EIOTLB_GLOB(g) ((u64)g)
-#define QI_DEV_EIOTLB_PASID(p) (((u64)p) << 32)
+#define QI_DEV_EIOTLB_GLOB(g) ((u64)(g) & 0x1)
+#define QI_DEV_EIOTLB_PASID(p) ((u64)((p) & 0xfffff) << 32)
#define QI_DEV_EIOTLB_SID(sid) ((u64)((sid) & 0xffff) << 16)
#define QI_DEV_EIOTLB_QDEP(qd) ((u64)((qd) & 0x1f) << 4)
#define QI_DEV_EIOTLB_PFSID(pfsid) (((u64)(pfsid & 0xf) << 12) | \
--
2.7.4
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