From: Lu Baolu <baolu.lu@linux.intel.com>
Date: Tue, 21 May 2019 07:30:16 +0000 (+0800)
Subject: iommu/vt-d: Set the right field for Page Walk Snoop
X-Git-Tag: v5.2-rc5~17^2~1
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=66d78ad316b0e1ca5ae19663468554e2c0e31c26;p=linux.git

iommu/vt-d: Set the right field for Page Walk Snoop

Set the page walk snoop to the right bit, otherwise the domain
id field will be overlapped.

Reported-by: Dave Jiang <dave.jiang@intel.com>
Fixes: 6f7db75e1c469 ("iommu/vt-d: Add second level page table interface")
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---

diff --git a/drivers/iommu/intel-pasid.c b/drivers/iommu/intel-pasid.c
index 2fefeafda437..fe51d8af457f 100644
--- a/drivers/iommu/intel-pasid.c
+++ b/drivers/iommu/intel-pasid.c
@@ -389,7 +389,7 @@ static inline void pasid_set_present(struct pasid_entry *pe)
  */
 static inline void pasid_set_page_snoop(struct pasid_entry *pe, bool value)
 {
-	pasid_set_bits(&pe->val[1], 1 << 23, value);
+	pasid_set_bits(&pe->val[1], 1 << 23, value << 23);
 }
 
 /*