Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752070AbbFMGsK (ORCPT ); Sat, 13 Jun 2015 02:48:10 -0400 Received: from 8bytes.org ([81.169.241.247]:51443 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751929AbbFMGrx (ORCPT ); Sat, 13 Jun 2015 02:47:53 -0400 From: Joerg Roedel To: iommu@lists.linux-foundation.org Cc: David Woodhouse , zhen-hual@hp.com, bhe@redhat.com, ddutile@redhat.com, alex.williamson@redhat.com, dyoung@redhat.com, linux-kernel@vger.kernel.org, jroedel@8bytes.org, joro@8bytes.org, Joerg Roedel Subject: [PATCH 11/19] iommu/vt-d: Don't disable translation prior to OS handover Date: Sat, 13 Jun 2015 08:47:19 +0200 Message-Id: <1434178047-17809-12-git-send-email-joro@8bytes.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1434178047-17809-1-git-send-email-joro@8bytes.org> References: <1434178047-17809-1-git-send-email-joro@8bytes.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1110 Lines: 37 From: Joerg Roedel For all the copy-translation code to run, we have to keep translation enabled in intel_iommu_init(). So remove the code disabling it. Signed-off-by: Joerg Roedel --- drivers/iommu/intel-iommu.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index e23d5b4..b47def6 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4469,13 +4469,6 @@ int __init intel_iommu_init(void) goto out_free_dmar; } - /* - * Disable translation if already enabled prior to OS handover. - */ - for_each_active_iommu(iommu, drhd) - if (iommu->gcmd & DMA_GCMD_TE) - iommu_disable_translation(iommu); - if (dmar_dev_scope_init() < 0) { if (force_on) panic("tboot: Failed to initialize DMAR device scope\n"); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/