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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 7A6E9C33CAA for ; Thu, 23 Jan 2020 07:23:13 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 45993217F4 for ; Thu, 23 Jan 2020 07:23:13 +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="XsW2PUYE" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 45993217F4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:52158 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iuWpb-0003DG-UG for qemu-devel@archiver.kernel.org; Thu, 23 Jan 2020 02:23:12 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:39697) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iuWnt-0001U5-RH for qemu-devel@nongnu.org; Thu, 23 Jan 2020 02:21:26 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iuWns-0002bN-Pp for qemu-devel@nongnu.org; Thu, 23 Jan 2020 02:21:25 -0500 Received: from us-smtp-2.mimecast.com ([205.139.110.61]:29535 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iuWns-0002X8-LC for qemu-devel@nongnu.org; Thu, 23 Jan 2020 02:21:24 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1579764082; 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=mRnk/JMDoFNJJxFT6WfDVqoBKDMVmbMiPOrEYR7hQUs=; b=XsW2PUYEYBSVWHIjN9T6wA2wamPEP/RwCgTKsYo7MdlS/K70Oj3+mIn644XdVa+NCN4jOY A9GAZbxJbTi/BDhs4Ty86lHixq0y4We427qGu+Nk/wDB1NkD9II0b5y2kymJBZMTF82JBn c9YahFiatPgLwpZ2UJdfpgUiz9wwfXg= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-142-AyZOdMkjMDexj29qk4tlsg-1; Thu, 23 Jan 2020 02:21:21 -0500 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id EA87F1800D48; Thu, 23 Jan 2020 07:21:19 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-116-131.ams2.redhat.com [10.36.116.131]) by smtp.corp.redhat.com (Postfix) with ESMTPS id AC7A210016EB; Thu, 23 Jan 2020 07:21:14 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 421B31138600; Thu, 23 Jan 2020 08:21:13 +0100 (CET) From: Markus Armbruster To: John Snow Subject: Re: Making QEMU easier for management tools and applications References: <20191224130035.GC2710539@redhat.com> Date: Thu, 23 Jan 2020 08:21:13 +0100 In-Reply-To: (John Snow's message of "Wed, 22 Jan 2020 17:42:10 -0500") Message-ID: <874kwmeiza.fsf@dusky.pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-MC-Unique: AyZOdMkjMDexj29qk4tlsg-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.61 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Peter Maydell , "Daniel P. =?utf-8?Q?Berrang=C3=A9?=" , "Denis V. Lunev" , Stefan Hajnoczi , qemu-devel , =?utf-8?Q?Marc-Andr=C3=A9?= Lureau , Paolo Bonzini , Dominik Csapak Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" John Snow writes: > On 12/24/19 8:00 AM, Daniel P. Berrang=C3=A9 wrote: >> Based on experiance in libvirt, this is an even larger job than (4), >> as the feature set here is huge. Much of it directly ties into the >> config problem, as to deal with SELinux / namespace setup the code >> needs to understand what resources to provide access to. This >> requires a way to express 100% coverage of all QEMU configuration >> in use & analyse it to determine what resources it implies. So this >> ties strongly into QAPI-ification completion. > > Is it totally bonkers to suggest that QEMU provide a method of digesting > a given configuration and returning a configuration object that a > standalone jailer can use? > > So we have a QEMU manager, the generic jailer, and QEMU. QEMU and the > manager cooperate to produce the jailing configuration, and the jailer > does what we ask it to. > > Nuts? With the nuts-o-meter calibrated for QEMU CLI: nope, this hardly moves the needle.