From 0b15e02f0cc4fb34a9160de7ba6db3a4013dc1b7 Mon Sep 17 00:00:00 2001 From: Filippo Sironi Date: Tue, 10 Sep 2019 19:49:21 +0200 Subject: [PATCH] iommu/amd: Wait for completion of IOTLB flush in attach_device To make sure the domain tlb flush completes before the function returns, explicitly wait for its completion. Signed-off-by: Filippo Sironi Fixes: 42a49f965a8d ("amd-iommu: flush domain tlb when attaching a new device") [joro: Added commit message and fixes tag] Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index fda9923..7bdce3b 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2212,6 +2212,8 @@ skip_ats_check: */ domain_flush_tlb_pde(domain); + domain_flush_complete(domain); + return ret; } -- 2.7.4