From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1F775C43441 for ; Fri, 9 Nov 2018 11:07:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E66D820827 for ; Fri, 9 Nov 2018 11:07:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E66D820827 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728509AbeKIUsC (ORCPT ); Fri, 9 Nov 2018 15:48:02 -0500 Received: from 8bytes.org ([81.169.241.247]:48912 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728170AbeKIUr1 (ORCPT ); Fri, 9 Nov 2018 15:47:27 -0500 Received: by theia.8bytes.org (Postfix, from userid 1000) id 3ED47433; Fri, 9 Nov 2018 12:07:19 +0100 (CET) From: Joerg Roedel To: Alex Williamson , Joerg Roedel Cc: iommu@lists.linux-foundation.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, jroedel@suse.de Subject: [PATCH 0/7] iommu/amd: Always allow to map huge pages Date: Fri, 9 Nov 2018 12:07:05 +0100 Message-Id: <20181109110712.12469-1-joro@8bytes.org> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, the AMD IOMMU driver had an issue for a long time where it didn't allow to map a huge-page when smaller mappings existed at that address range before. The VFIO driver even had a workaround for that behavior. These patches fix the issue and remove the workaround from the VFIO driver. Please review. Thanks, Joerg Joerg Roedel (7): iommu/amd: Collect page-table pages in freelist iommu/amd: Introduce free_sub_pt() function iommu/amd: Ignore page-mode 7 in free_sub_pt() iommu/amd: Allow downgrading page-sizes in alloc_pte() iommu/amd: Restart loop if cmpxchg64 succeeded in alloc_pte() iommu/amd: Allow to upgrade page-size vfio/type1: Remove map_try_harder() code path drivers/iommu/amd_iommu.c | 204 +++++++++++++++++++++----------- drivers/iommu/amd_iommu_types.h | 1 + drivers/vfio/vfio_iommu_type1.c | 33 +----- 3 files changed, 137 insertions(+), 101 deletions(-) -- 2.17.1