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=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 8EEC7C11D04 for ; Thu, 20 Feb 2020 13:17:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 634FF24650 for ; Thu, 20 Feb 2020 13:17:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="OL4CmIvl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728105AbgBTNRb (ORCPT ); Thu, 20 Feb 2020 08:17:31 -0500 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:52043 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728042AbgBTNRb (ORCPT ); Thu, 20 Feb 2020 08:17:31 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1582204650; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=XvMmChK6SbgG0/2Lm5qNdD29/GRoTprQuuIJ6y74DbY=; b=OL4CmIvloyGVcCObFO+rKt31nQeBpfKoQDvKLpdQg8aKswvi7Pc35jR/Vd94SaaHopEf1a 5j+lk7U5m4POFz9E5AkM8OCLyz/8JvKqP6KD2exbfnc5ngnupYkA/eNVDyjZF+1fnYHcqh WUpAg0j9GY3feuBt8Ygng/TEdz9qySU= Received: from mail-wr1-f72.google.com (mail-wr1-f72.google.com [209.85.221.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-242-V49cwd0iO_Gs-1F3-aOELQ-1; Thu, 20 Feb 2020 08:17:28 -0500 X-MC-Unique: V49cwd0iO_Gs-1F3-aOELQ-1 Received: by mail-wr1-f72.google.com with SMTP id s13so1716943wru.7 for ; Thu, 20 Feb 2020 05:17:28 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=XvMmChK6SbgG0/2Lm5qNdD29/GRoTprQuuIJ6y74DbY=; b=e+DzL64LX1WP65DDhEZav5qrhPF5XZSb6fLGuuTXtTUAykKlQ5dbohvut3E3tn1uMP P1lMuuZNEJAmxE9ojeiRD+m+C3J9NGDdbPkPEFmc6Gq6RwPneddZizGgKqZHYKPopV+g A6kgUSS1A7wvbnqUQf0aU2RloyfM7EjMTY58xdBskvIjekYDWYHKkmkjLUQuG/z7Pt3c Odt1/mH0OnFdq7BEQ18E5uIXPCPqln13b127SaojYkXX0RjVptrMZ6SMTG2dsoa9AGwA LpbJXofb139YGLenYr1oHvKitaqRngXSgmrTB9Vtlv8yveslNsxg32UW44Lx5s+8b1EC 35yQ== X-Gm-Message-State: APjAAAXYKXCAPTrw2iDkvjCA5N3KS1WEA4vLGn0shcbkdVl59RxfZOKv jef9akGCOHEXtlwt4Y1AdrEjLAK7i4MYfuP5UsGVm2OoxzZhBzaYw6kQ142ww3RNRv8UOvwYXiO CwJQCMEDp4fJW X-Received: by 2002:a05:6000:1012:: with SMTP id a18mr41811263wrx.113.1582204647567; Thu, 20 Feb 2020 05:17:27 -0800 (PST) X-Google-Smtp-Source: APXvYqz+bMIwb/40ta9G1MJyGw7FTeqK0evbAksgNT4fuWxaQqt0K6KuCAj18GyDem3xjd7ozBfutw== X-Received: by 2002:a05:6000:1012:: with SMTP id a18mr41811244wrx.113.1582204647347; Thu, 20 Feb 2020 05:17:27 -0800 (PST) Received: from [10.201.49.12] (nat-pool-mxp-u.redhat.com. [149.6.153.187]) by smtp.gmail.com with ESMTPSA id x10sm4168085wrv.60.2020.02.20.05.17.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 20 Feb 2020 05:17:26 -0800 (PST) Subject: Re: [RFC PATCH 0/5] Removing support for 32bit KVM/arm host To: Marc Zyngier , Marek Szyprowski Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, Vladimir Murzin , Russell King , Arnd Bergmann , Suzuki K Poulose , Quentin Perret , Christoffer Dall , James Morse , Will Deacon , Julien Thierry , Krzysztof Kozlowski , Bartlomiej Zolnierkiewicz References: <20200210141324.21090-1-maz@kernel.org> <621a0a92-6432-6c3e-cb69-0b601764fa69@samsung.com> <43446bd5e884ae92f243799cbe748871@kernel.org> From: Paolo Bonzini Message-ID: <250c6908-266f-0306-9d09-5ecf8dd6b736@redhat.com> Date: Thu, 20 Feb 2020 14:17:24 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <43446bd5e884ae92f243799cbe748871@kernel.org> Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 20/02/20 14:15, Marc Zyngier wrote: >> That is a bit sad information. Mainline Exynos finally got everything >> that was needed to run it on the quite popular Samsung Exynos5422-based >> Odroid XU4/HC1/MC1 boards. According to the Odroid related forums it is >> being used. We also use it internally at Samsung. > > Something like "too little, too late" springs to mind, but let's be > constructive. Is anyone using it in a production environment, where > they rely on the latest mainline kernel having KVM support? Depends if you consider "production environment" somebody playing at home with a SBC. But it's true that, these days, most of those that support EL2 do support ARM64, even if they are used with a 32-bit userland. Paolo 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=-2.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 3E1B8C11D04 for ; Thu, 20 Feb 2020 13:17:37 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id BC11920722 for ; Thu, 20 Feb 2020 13:17:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="eP6k8puQ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BC11920722 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com 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 3E2EA4AEF0; Thu, 20 Feb 2020 08:17:36 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@redhat.com 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 trc0OtOXCeCw; Thu, 20 Feb 2020 08:17:35 -0500 (EST) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 402FA4AE9F; Thu, 20 Feb 2020 08:17:35 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id B22D64AE96 for ; Thu, 20 Feb 2020 08:17:33 -0500 (EST) 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 DUOI-tvhrN2z for ; Thu, 20 Feb 2020 08:17:32 -0500 (EST) Received: from us-smtp-delivery-1.mimecast.com (us-smtp-2.mimecast.com [207.211.31.81]) by mm01.cs.columbia.edu (Postfix) with ESMTP id A0C004ACF5 for ; Thu, 20 Feb 2020 08:17:32 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1582204652; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=XvMmChK6SbgG0/2Lm5qNdD29/GRoTprQuuIJ6y74DbY=; b=eP6k8puQytQFnBKSOcfaxV9ikvtjxjHqqsWjzNiSPw7PXC5/m2RBpC38hD8MLJnaPU8jAj 965tUNf6G475YX7MQZh3oumHSs9WTmJZtnMeYD3SPu2yoSG9JzeRrJFEXeLhwOwq3e0VVO BJHE5Pw0zxZrOq9pJkxZn2qfisk3qtQ= Received: from mail-wr1-f72.google.com (mail-wr1-f72.google.com [209.85.221.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-119-P73ODCmnOpWhTWqRqQuffA-1; Thu, 20 Feb 2020 08:17:28 -0500 X-MC-Unique: P73ODCmnOpWhTWqRqQuffA-1 Received: by mail-wr1-f72.google.com with SMTP id w6so1717321wrm.16 for ; Thu, 20 Feb 2020 05:17:28 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=XvMmChK6SbgG0/2Lm5qNdD29/GRoTprQuuIJ6y74DbY=; b=p6F45riV3oGLsbymE+tUozDGqnQqLZc1saChI/4q/TjChJ0aAM5JG+WzWM2/Ql1lYu Kr6Z0oMJ8fUN3dsXylIKBfQVIXXIwgzm8ZZ2v3ZyoVsfdAmyb/FXBpkCgUxd2BX0LeNm uT2d6/pmMXgcJMaPcVel5Hh2uiUHJmrVlwCTOit0V5bi78tJcfLH+LinhC8TFAL11bG2 98tNbh4o8j+49Wzdve+/TAMmuR1xvMGj+8itzLPT0tTXSzh+NGOU3DQrGd7SGuoTIvJJ AgOL0G0pEYEhr4gEX+XfcZZNVirYAuqoDggbw1tND5+1X+hL7aeWpkGwZxO+IVsl0byE qCNw== X-Gm-Message-State: APjAAAUnXo16eVVbSWggQc9fLzEk+78CxM/pJ551MXWI3F94wKvnzTtm h9l5B7BySp+VMtINWMhpfrrWR83FFUrhjoh1RvlOnjQ1Xzxnuf1havRA5JatNWMFJahDC2SGY3U NxMIPJ1V5kJ7AQ45cqrrSLpPH X-Received: by 2002:a05:6000:1012:: with SMTP id a18mr41811264wrx.113.1582204647567; Thu, 20 Feb 2020 05:17:27 -0800 (PST) X-Google-Smtp-Source: APXvYqz+bMIwb/40ta9G1MJyGw7FTeqK0evbAksgNT4fuWxaQqt0K6KuCAj18GyDem3xjd7ozBfutw== X-Received: by 2002:a05:6000:1012:: with SMTP id a18mr41811244wrx.113.1582204647347; Thu, 20 Feb 2020 05:17:27 -0800 (PST) Received: from [10.201.49.12] (nat-pool-mxp-u.redhat.com. [149.6.153.187]) by smtp.gmail.com with ESMTPSA id x10sm4168085wrv.60.2020.02.20.05.17.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 20 Feb 2020 05:17:26 -0800 (PST) Subject: Re: [RFC PATCH 0/5] Removing support for 32bit KVM/arm host To: Marc Zyngier , Marek Szyprowski References: <20200210141324.21090-1-maz@kernel.org> <621a0a92-6432-6c3e-cb69-0b601764fa69@samsung.com> <43446bd5e884ae92f243799cbe748871@kernel.org> From: Paolo Bonzini Message-ID: <250c6908-266f-0306-9d09-5ecf8dd6b736@redhat.com> Date: Thu, 20 Feb 2020 14:17:24 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <43446bd5e884ae92f243799cbe748871@kernel.org> Content-Language: en-US X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Cc: Russell King , kvm@vger.kernel.org, Arnd Bergmann , Krzysztof Kozlowski , Bartlomiej Zolnierkiewicz , Will Deacon , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org 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 On 20/02/20 14:15, Marc Zyngier wrote: >> That is a bit sad information. Mainline Exynos finally got everything >> that was needed to run it on the quite popular Samsung Exynos5422-based >> Odroid XU4/HC1/MC1 boards. According to the Odroid related forums it is >> being used. We also use it internally at Samsung. > > Something like "too little, too late" springs to mind, but let's be > constructive. Is anyone using it in a production environment, where > they rely on the latest mainline kernel having KVM support? Depends if you consider "production environment" somebody playing at home with a SBC. But it's true that, these days, most of those that support EL2 do support ARM64, even if they are used with a 32-bit userland. Paolo _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm 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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 CC1E3C11D04 for ; Thu, 20 Feb 2020 13:24:40 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 A3564208C4 for ; Thu, 20 Feb 2020 13:24:40 +0000 (UTC) Authentication-Results: mail.kernel.org; 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[149.6.153.187]) by smtp.gmail.com with ESMTPSA id x10sm4168085wrv.60.2020.02.20.05.17.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 20 Feb 2020 05:17:26 -0800 (PST) Subject: Re: [RFC PATCH 0/5] Removing support for 32bit KVM/arm host To: Marc Zyngier , Marek Szyprowski References: <20200210141324.21090-1-maz@kernel.org> <621a0a92-6432-6c3e-cb69-0b601764fa69@samsung.com> <43446bd5e884ae92f243799cbe748871@kernel.org> From: Paolo Bonzini Message-ID: <250c6908-266f-0306-9d09-5ecf8dd6b736@redhat.com> Date: Thu, 20 Feb 2020 14:17:24 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <43446bd5e884ae92f243799cbe748871@kernel.org> Content-Language: en-US X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200220_052429_104223_50856E8D X-CRM114-Status: GOOD ( 12.43 ) 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: Vladimir Murzin , Russell King , kvm@vger.kernel.org, Arnd Bergmann , Suzuki K Poulose , Quentin Perret , Christoffer Dall , Krzysztof Kozlowski , Bartlomiej Zolnierkiewicz , James Morse , Julien Thierry , Will Deacon , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 20/02/20 14:15, Marc Zyngier wrote: >> That is a bit sad information. Mainline Exynos finally got everything >> that was needed to run it on the quite popular Samsung Exynos5422-based >> Odroid XU4/HC1/MC1 boards. According to the Odroid related forums it is >> being used. We also use it internally at Samsung. > > Something like "too little, too late" springs to mind, but let's be > constructive. Is anyone using it in a production environment, where > they rely on the latest mainline kernel having KVM support? Depends if you consider "production environment" somebody playing at home with a SBC. But it's true that, these days, most of those that support EL2 do support ARM64, even if they are used with a 32-bit userland. Paolo _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel