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,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,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 AF53DC433E0 for ; Mon, 3 Aug 2020 19:31:35 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id D49D322B45 for ; Mon, 3 Aug 2020 19:31:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D49D322B45 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id DC99F4B6AA; Mon, 3 Aug 2020 15:31:33 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id oZpYD+I32-0D; Mon, 3 Aug 2020 15:31:32 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id D0FDB4B6A1; Mon, 3 Aug 2020 15:31:32 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id D63694B6A5 for ; Mon, 3 Aug 2020 15:31:30 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rbKP-Xke3zTR for ; Mon, 3 Aug 2020 15:31:29 -0400 (EDT) Received: from mail-io1-f67.google.com (mail-io1-f67.google.com [209.85.166.67]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id C89334B5F0 for ; Mon, 3 Aug 2020 15:31:29 -0400 (EDT) Received: by mail-io1-f67.google.com with SMTP id v6so24487907iow.11 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=CYI1zGogGP3qdUwY6UbZeV9H00kn/1sGcVb//tThcMbI/TKo56Ft8pGFdC18WCkRRV ttJ5Z3FG0KD7ivN3i2qpN4VclZzptjKc4PPA95Qmo4UteiOLjDxLfSDtoaiAOR8SiEd+ Fb1r0scMm2yPyzZ3N6MfI0BMhqu0M3A3+wBJf+vKND5vGX2euFTNlajv0ft+r4dng80H fupnWoGp9VE8mKNcPdHV5IHoamFeFHXFqMAPKr5HYrCZqovq2b9FW+2mQ0+x0dZTlxAm OGkGabBvGRhduRhe5Xs8YVukfYvFA4wzPTSeT38UWay6O307POOinEBM3DIIoEJkVbFm P5Vg== X-Gm-Message-State: AOAM532Ane9ei1KHi4yiZ18HL2Os/r/XnYEx3jTzRcE8G8ZreLeBhlCC DIUcvkK8I21nlJQ30ByXIg== 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 Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu 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 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm