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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, 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 8A3C3C433DB for ; Tue, 16 Feb 2021 03:34:03 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0132864DB1 for ; Tue, 16 Feb 2021 03:34:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0132864DB1 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ozlabs.ru Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Dfmm94TrGz3bP8 for ; Tue, 16 Feb 2021 14:34:01 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.ru (client-ip=107.174.27.60; helo=ozlabs.ru; envelope-from=aik@ozlabs.ru; receiver=) Received: from ozlabs.ru (ozlabs.ru [107.174.27.60]) by lists.ozlabs.org (Postfix) with ESMTP id 4Dfmlq4dS8z30HZ for ; Tue, 16 Feb 2021 14:33:43 +1100 (AEDT) Received: from fstn1-p1.ozlabs.ibm.com (localhost [IPv6:::1]) by ozlabs.ru (Postfix) with ESMTP id 20320AE8020D; Mon, 15 Feb 2021 22:33:09 -0500 (EST) From: Alexey Kardashevskiy To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH kernel 0/2] powerpc/iommu: Stop crashing the host when VM is terminated Date: Tue, 16 Feb 2021 14:33:05 +1100 Message-Id: <20210216033307.69863-1-aik@ozlabs.ru> X-Mailer: git-send-email 2.17.1 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexey Kardashevskiy , kvm-ppc@vger.kernel.org, David Gibson Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Killing a VM on a host under memory pressure kills a host which is annoying. 1/2 reduces the chances, 2/2 eliminates panic() on ioda2. This is based on sha1 f40ddce88593 Linus Torvalds "Linux 5.11". Please comment. Thanks. Alexey Kardashevskiy (2): powerpc/iommu: Allocate it_map by vmalloc powerpc/iommu: Do not immediately panic when failed IOMMU table allocation arch/powerpc/kernel/iommu.c | 19 ++++++------------- arch/powerpc/platforms/cell/iommu.c | 3 ++- arch/powerpc/platforms/pasemi/iommu.c | 4 +++- arch/powerpc/platforms/powernv/pci-ioda.c | 15 ++++++++------- arch/powerpc/platforms/pseries/iommu.c | 10 +++++++--- arch/powerpc/sysdev/dart_iommu.c | 3 ++- 6 files changed, 28 insertions(+), 26 deletions(-) -- 2.17.1