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Message-Id: <1450822888-22590-5-git-send-email-joro@8bytes.org> Date: Tue, 22 Dec 2015 23:21:09 +0100 From: Joerg Roedel <joro@...tes.org> To: iommu@...ts.linux-foundation.org Cc: linux-kernel@...r.kernel.org, joro@...tes.org, jroedel@...e.de Subject: [PATCH 04/23] iommu/amd: Flush IOMMU TLB on __map_single error path From: Joerg Roedel <jroedel@...e.de> There have been present PTEs which in theory could have made it to the IOMMU TLB. Flush the addresses out on the error path to make sure no stale entries remain. Signed-off-by: Joerg Roedel <jroedel@...e.de> --- 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 8ff3331..42c0a81 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2493,6 +2493,8 @@ out_unmap: dma_ops_domain_unmap(dma_dom, start); } + domain_flush_pages(&dma_dom->domain, address, size); + dma_ops_free_addresses(dma_dom, address, pages); return DMA_ERROR_CODE; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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