[ Upstream commit 66d78ad316b0e1ca5ae19663468554e2c0e31c26 ]
Set the page walk snoop to the right bit, otherwise the domain
id field will be overlapped.
Reported-by: Dave Jiang <dave.jiang@xxxxxxxxx>
Fixes: 6f7db75e1c469 ("iommu/vt-d: Add second level page table interface")
Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/iommu/intel-pasid.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/intel-pasid.c b/drivers/iommu/intel-pasid.c
index 03b12d2ee213..fdf05c45d516 100644
--- a/drivers/iommu/intel-pasid.c
+++ b/drivers/iommu/intel-pasid.c
@@ -387,7 +387,7 @@ 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);
}
/*
--
2.20.1
