From mboxrd@z Thu Jan 1 00:00:00 1970 From: Baoquan He Subject: [PATCH 09/10] iommu/amd: Clear the iommu pre enabled setting Date: Thu, 24 Sep 2015 14:37:35 +0800 Message-ID: <1443076656-31776-10-git-send-email-bhe@redhat.com> References: <1443076656-31776-1-git-send-email-bhe@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1443076656-31776-1-git-send-email-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Cc: kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: iommu@lists.linux-foundation.org In the first Now any change of domain can be updated to dev tables and io page table Signed-off-by: Baoquan He --- 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 aee1ae4..1e86f4c 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2469,6 +2469,8 @@ static dma_addr_t __map_single(struct device *dev, unsigned long align_mask = 0; int i; + if (translation_pre_enabled()) + clear_translation_pre_enabled(); pages = iommu_num_pages(paddr, size, PAGE_SIZE); paddr &= PAGE_MASK; -- 2.4.0