diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index 538c750ceed6..d86496114ca5 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -3458,7 +3458,12 @@ __setup("ivrs_acpihid",		parse_ivrs_acpihid);
 
 bool amd_iommu_v2_supported(void)
 {
-	return amd_iommu_v2_present;
+	/*
+	 * Since DTE[Mode]=0 is prohibited on SNP-enabled system
+	 * (i.e. EFR[SNPSup]=1), IOMMUv2 page table cannot be used without
+	 * setting up IOMMUv1 page table.
+	 */
+	return amd_iommu_v2_present && !amd_iommu_snp_en;
 }
 EXPORT_SYMBOL(amd_iommu_v2_supported);