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=-8.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 D2F75C00A89 for ; Thu, 5 Nov 2020 06:48:22 +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 12ACC20719 for ; Thu, 5 Nov 2020 06:48:21 +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="fpXRJOCI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 12ACC20719 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]:48930 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kaZ4H-0002p2-0a for qemu-devel@archiver.kernel.org; Thu, 05 Nov 2020 01:48:21 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:38992) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kaZ3g-0002OC-JH for qemu-devel@nongnu.org; Thu, 05 Nov 2020 01:47:44 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:49643) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kaZ3d-0000ey-Oa for qemu-devel@nongnu.org; Thu, 05 Nov 2020 01:47:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1604558859; 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: in-reply-to:in-reply-to:references:references; bh=mKXWhuK6ETT6b19Bd9+efqUAXOSf+iIPTyLyoclCrj4=; b=fpXRJOCIX1fFkMi8rWZaoDsDzhqdADbrxAQo78malPjdOk+UfySX4bRgU5PyX3L6S6Sb5h Eyu7zICV59AE0vEQPxkhqHn7q7Ya83EJrxDMxAKthCJjmPk5eeJLO5gMC2sMeidxrGLgOa VnWhYnxgklXGC3HhRphfUC9wADIDHVg= 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-289-A41OH9L4NimRlDCH8MjmmQ-1; Thu, 05 Nov 2020 01:47:33 -0500 X-MC-Unique: A41OH9L4NimRlDCH8MjmmQ-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id ECC0280EF8A; Thu, 5 Nov 2020 06:47:31 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-114-66.ams2.redhat.com [10.36.114.66]) by smtp.corp.redhat.com (Postfix) with ESMTP id B68485D9D5; Thu, 5 Nov 2020 06:47:25 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id C116416E18; Thu, 5 Nov 2020 07:47:24 +0100 (CET) Date: Thu, 5 Nov 2020 07:47:24 +0100 From: Gerd Hoffmann To: Stefan Hajnoczi Subject: Re: VFIO Migration Message-ID: <20201105064724.qd55txohwbfpvdsg@sirius.home.kraxel.org> References: <20201102111153.GC42093@stefanha-x1.localdomain> <20201102132844.332f680c.cohuck@redhat.com> <20201102145626.GA186617@stefanha-x1.localdomain> <20201104080745.qvpofinyni2wprq2@sirius.home.kraxel.org> <20201104164010.GB425016@stefanha-x1.localdomain> MIME-Version: 1.0 In-Reply-To: <20201104164010.GB425016@stefanha-x1.localdomain> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=216.205.24.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/05 01:14:53 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] 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, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: John G Johnson , mtsirkin@redhat.com, Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= , quintela@redhat.com, Jason Wang , Cornelia Huck , qemu-devel@nongnu.org, "Dr. David Alan Gilbert" , Kirti Wankhede , Thanos Makatos , Alex Williamson , Felipe Franciosi , Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi, > > > Yes. If you are creating a custom device that no one else needs to > > > emulate then you can simply pick a unique URL: > > > > > > https://vendor.com/my-dev > > > > > > There doesn't need to be anything at the URL. It's just a unique string > > > that no one else will use and therefore web URLs are handy because no > > > one else will accidentally pick your string. > > > > If this is just a string I think it would be better to use the reverse > > domain name scheme (as used by virtio-serial too), i.e. > > > > - org.qemu.devices.e1000e > > - com.vendor.my-dev > > This is the Java syntax. I think both android and ios use that too, for app naming (but maybe that comes from java). > Go uses gitlab.com/my-user/foo and I think it's > nicer but I think I'm bikeshedding. > > Is there any particular reason why you prefer the reverse domain name > approach? Having "https://" at the start is odd, especially if we don't require that the given URL returns something useful. Other that that I don't mind that much whenever we use go-style or java-style strings, with a slight preference for the latter for consistency with virtio-serial. take care, Gerd