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 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EB799C07545 for ; Tue, 24 Oct 2023 15:34:05 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qvJPj-0005xI-RY; Tue, 24 Oct 2023 11:33:52 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qvJPc-0005vr-2O for qemu-devel@nongnu.org; Tue, 24 Oct 2023 11:33:44 -0400 Received: from mail-lf1-x132.google.com ([2a00:1450:4864:20::132]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qvJPW-0005cC-47 for qemu-devel@nongnu.org; Tue, 24 Oct 2023 11:33:43 -0400 Received: by mail-lf1-x132.google.com with SMTP id 2adb3069b0e04-507c50b7c36so6434559e87.3 for ; Tue, 24 Oct 2023 08:33:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1698161616; x=1698766416; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:in-reply-to:date :subject:cc:to:from:user-agent:references:from:to:cc:subject:date :message-id:reply-to; bh=pgn7DZOjqiLKpDeJIAWXRIPQaKWXfmUlyU40rW5Vul0=; b=r4n66Lvt5GqG58Sxt+jbNWMX2w/ZSl8rTkYhrn3v3gKIVXY+QKHHfEnjRZrQmo71RB U0u+MOCdieM4s/GqNe6e+zoAPfPi5v5dQJz953IvD9c/VfF4l/kynESSsGU926thwBI/ S+jJRhJG7D0XON5SWS2yFhVwsQVDpjrDI0iChDD2bggJafi6Ibir7cGaBuJNk7I2Kit5 nj9WActjiraJ3SChQlFSJ3a0mBJJYueNx6zH4ms1wiLNxRzlTxyYMJjwsPltqSZJVSqO S24gb2Rx18ZgFsqYTRd0fJ6MkqEdwoGX6BPBLekBNQ4kplFDQz4UUC7ACE29cHbwsBLs uOkw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698161616; x=1698766416; h=content-transfer-encoding:mime-version:message-id:in-reply-to:date :subject:cc:to:from:user-agent:references:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=pgn7DZOjqiLKpDeJIAWXRIPQaKWXfmUlyU40rW5Vul0=; b=SgPYvYb1DjDhdZe0IcXE2JKLcvHLokzyUzV43/d7lZT85QGVBGKC+kvddYmD2pZWZS aO14SrygW47i9xhBiu1VOt+miK1EPmEf051czw5nVvKIwpr9+8YjANGvcrmfgR215TpF mgE33qpfXQtlwEDP6DL/TtOlF5MvE+iHQr+vuPotfVB0r9hJhYl4KCamLPyNBnKA0N6d iyeB2H2s8x8u7Iwh3yokHUWVlPBviPgUbGQEfemSQhijl7u09cAIOoganiWfEpowG9n+ WepgwpDTDC35p3ZWydjvvMsSesOIfcjky0uk+5vZqK8Uo2ZIkqXzTeuovwYQRzYOvLH+ ojww== X-Gm-Message-State: AOJu0Yxu8kCP/tkYDW/Uocc+JPtF/UYHydtyKYd+vPXBs6cqMjWWnDWI c4GkNJFhcn168lNdABGxObgvUg== X-Google-Smtp-Source: AGHT+IERaAXJZu/NEaGGq5i9CuYFrG2wQ65+x8yTDScZaEY7DCl2PsKOOkex2LHV25CK2hUsLxDFYA== X-Received: by 2002:a05:6512:3156:b0:507:a3ae:3252 with SMTP id s22-20020a056512315600b00507a3ae3252mr8565102lfi.27.1698161616310; Tue, 24 Oct 2023 08:33:36 -0700 (PDT) Received: from zen.linaroharston ([85.9.250.243]) by smtp.gmail.com with ESMTPSA id s3-20020adfea83000000b0031980783d78sm10119502wrm.54.2023.10.24.08.33.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Oct 2023 08:33:35 -0700 (PDT) Received: from zen (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id 5E4B91FFBB; Tue, 24 Oct 2023 16:33:35 +0100 (BST) References: <20231016151909.22133-1-dwmw2@infradead.org> User-agent: mu4e 1.11.22; emacs 29.1.90 From: Alex =?utf-8?Q?Benn=C3=A9e?= To: David Woodhouse Cc: qemu-devel@nongnu.org, Kevin Wolf , Hanna Reitz , Stefano Stabellini , Anthony Perard , Paul Durrant , =?utf-8?Q?Marc-Andr=C3=A9?= Lureau , Paolo Bonzini , "Michael S. Tsirkin" , Marcel Apfelbaum , Richard Henderson , Eduardo Habkost , Marcelo Tosatti , qemu-block@nongnu.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org Subject: Re: [PATCH 0/12] Get Xen PV shim running in qemu Date: Tue, 24 Oct 2023 16:24:48 +0100 In-reply-to: <20231016151909.22133-1-dwmw2@infradead.org> Message-ID: <877cnc2fxs.fsf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:20::132; envelope-from=alex.bennee@linaro.org; helo=mail-lf1-x132.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org David Woodhouse writes: > I hadn't got round to getting the PV shim running yet; I thought it would > need work on the multiboot loader. Turns out it doesn't. I *did* need to > fix a couple of brown-paper-bag bugs in the per-vCPU upcall vector suppor= t, > and implement Xen console support though. Now I can test PV guests: > > $ qemu-system-x86_64 --accel kvm,xen-version=3D0x40011,kernel-irqchip=3D= split \ > -chardev stdio,mux=3Don,id=3Dchar0 -device xen-console,chardev=3Dchar0= \ > -drive file=3D${GUEST_IMAGE},if=3Dxen -display none -m 1G \ > -kernel ~/git/xen/xen/xen -initrd ~/git/linux/arch/x86/boot/bzImage > \ So this is a KVM guest running the Xen hypervisor (via -kernel) and a Dom0 Linux guest (via -initrd)? Should this work for any Xen architecture or is this x86 specific? Does the -M machine model matter? Would it be possible to have some sort of overview document in our manual for how Xen guests are supported under KVM? > -append "loglvl=3Dall -- console=3Dhvc0 root=3D/dev/xvda1" > --=20 Alex Benn=C3=A9e Virtualisation Tech Lead @ Linaro