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=-7.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=no 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 33A86C433DF for ; Mon, 3 Aug 2020 19:32:59 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 9B11922B45 for ; Mon, 3 Aug 2020 19:32:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ARq+hid2" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9B11922B45 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=1ZN+dvUuEB/emrvtbej+AqRHYuokg9nEgbjVZUF1JK4=; b=ARq+hid2GVDaZzlwNRpakhXXIp NCN8OVj96/z8frofUO17IPbtxXusGITwq5ll9b1XstCHip+hXyhIlPtIWWnuxC0JN+oXatoqkmBaX mRHYKo4KkiY8cDWVibKkgnmPOrAwpsWRkS7Oo/oIZnk+RkeLeImxrTTOYYySpOe2pVZeFve3AsyiG 37YK44PH7ied1IGo9rNk5IP1G+T+l5oy0xl9hPYxWdyw7SoCPOcFNuQdQNXrng8eIoy4iMSNLqlT7 Prigx3RMm7EvFHOb6qdzanFbDYC2cI+ks4Z00VPnvkEj9uEm7J7Lqb0LrGj36Kq7ABZvg9NSPit5r etefn3oA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k2gBK-0003GS-EX; Mon, 03 Aug 2020 19:31:34 +0000 Received: from mail-io1-f68.google.com ([209.85.166.68]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k2gBH-0003F6-Qn for linux-arm-kernel@lists.infradead.org; Mon, 03 Aug 2020 19:31:32 +0000 Received: by mail-io1-f68.google.com with SMTP id l17so39735911iok.7 for ; Mon, 03 Aug 2020 12:31:29 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=UdBaePAIB9P/sNSZqXX7ZM1kjahKFZoeLOxBQjWLtkA=; b=j4wBj6YSE7OWGfHL3zrQcE2LMAG8FQjs5WBbk7zcVl0VXh6jygUQFAz3qzCK2NURzg fTsq3Z2rqEqgJ8FicJoy582495uTs7HNBK/4KolNBpe51O6F1XbBvD6F8SS9IrxvzGeK iRYnkbuxpg903+V529dJAf/mpyCg88lCHkp1AHEf7yFJTX72Zdqc62H6Y/tZsdsC2sgi 8AdyLih9IUesTnuhL6GnROfhudvIiQLkabAnQeFD3c3o6IaejZJaXsuUgzIHgKmhjkGQ zOje5VHUsH1TVx8a2liQfwOvR11hHZxHBQB/WH6h4Jn+NXLXjfbhB9wLjPthUOOsfWfm dCcA== X-Gm-Message-State: AOAM5329+CP1z2pXgkafqddpwVVD4zeJb2EJZqz2PsdPhWHd6PcpaOOB XIOaMX8zi32Yy3TMoU77pQ== X-Google-Smtp-Source: ABdhPJwf6xlxOG4KBbtKiHnDTG3EEs4p6tr0qUav18Ic8FxOtIr4LyuCTaRug7Sl8HEYeaFt/D3p8w== X-Received: by 2002:a05:6602:228e:: with SMTP id d14mr1432099iod.33.1596483089208; Mon, 03 Aug 2020 12:31:29 -0700 (PDT) Received: from xps15.herring.priv ([64.188.179.252]) by smtp.googlemail.com with ESMTPSA id j79sm11254738ilg.42.2020.08.03.12.31.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Aug 2020 12:31:28 -0700 (PDT) From: Rob Herring To: Catalin Marinas , Will Deacon , Marc Zyngier Subject: [PATCH v4 0/3] Cortex-A77 erratum 1508412 workaround Date: Mon, 3 Aug 2020 13:31:24 -0600 Message-Id: <20200803193127.3012242-1-robh@kernel.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200803_153131_875067_B8604223 X-CRM114-Status: GOOD ( 11.73 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org, Suzuki K Poulose , James Morse , Andrew Scull , kvmarm@lists.cs.columbia.edu, Julien Thierry Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This series implements the work-around for Cortex-A77 erratum 1508412. KVM guests which don't implement the workaround can still deadlock the system. This is also the case with the existing Cortex-A57 erratum 832075, so we add a warning message if an erratum can cause deadlock. Changes detailed in patches. Rob v3: https://lore.kernel.org/linux-arm-kernel/20200717205233.903344-1-robh@kernel.org/ v2: https://lore.kernel.org/linux-arm-kernel/20200701215308.3715856-1-robh@kernel.org/ v1: https://lore.kernel.org/linux-arm-kernel/20200629213321.2953022-1-robh@kernel.org/ Rob Herring (3): KVM: arm64: Print warning when cpu erratum can cause guests to deadlock arm64: Add part number for Arm Cortex-A77 arm64: Add workaround for Arm Cortex-A77 erratum 1508412 Documentation/arm64/silicon-errata.rst | 2 ++ arch/arm64/Kconfig | 20 ++++++++++++++++++++ arch/arm64/include/asm/cpucaps.h | 3 ++- arch/arm64/include/asm/cputype.h | 2 ++ arch/arm64/include/asm/kvm_hyp.h | 1 - arch/arm64/include/asm/sysreg.h | 9 +++++++++ arch/arm64/kernel/cpu_errata.c | 10 ++++++++++ arch/arm64/kvm/arm.c | 5 +++++ arch/arm64/kvm/hyp/switch.c | 7 ++++--- arch/arm64/kvm/hyp/sysreg-sr.c | 2 +- arch/arm64/kvm/sys_regs.c | 2 +- arch/arm64/mm/fault.c | 2 +- 12 files changed, 57 insertions(+), 8 deletions(-) -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel