From 05941cd73c7e50d4b4488668b53d91b8d81fc2ad Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Fri, 13 Oct 2017 14:32:37 +0200 Subject: [PATCH] iommu/amd: Finish TLB flush in amd_iommu_unmap() commit ce76353f169a6471542d999baf3d29b121dce9c0 upstream. The function only sends the flush command to the IOMMU(s), but does not wait for its completion when it returns. Fix that. Fixes: 601367d76bd1 ('x86/amd-iommu: Remove iommu_flush_domain function') Signed-off-by: Joerg Roedel Signed-off-by: Ben Hutchings --- drivers/iommu/amd_iommu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index a80369032bd8..94e8fc45cd56 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2772,6 +2772,7 @@ static int amd_iommu_unmap(struct iommu_domain *dom, unsigned long iova, mutex_unlock(&domain->api_lock); domain_flush_tlb_pde(domain); + domain_flush_complete(domain); return get_order(unmap_size); } -- 2.39.2