From 66d78ad316b0e1ca5ae19663468554e2c0e31c26 Mon Sep 17 00:00:00 2001 From: Lu Baolu Date: Tue, 21 May 2019 15:30:16 +0800 Subject: [PATCH] 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 Fixes: 6f7db75e1c469 ("iommu/vt-d: Add second level page table interface") Signed-off-by: Lu Baolu Signed-off-by: Joerg Roedel --- 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 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); } /* -- 2.45.2