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 lists1p.gnu.org (lists1p.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 8AF0AC624D4 for ; Tue, 1 Sep 2026 21:35:47 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1x1W8O-0002qJ-4v; Tue, 01 Sep 2026 17:35:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1x1W8F-0002ps-WE for qemu-devel@nongnu.org; Tue, 01 Sep 2026 17:35:05 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1x1W8B-0008AS-JT for qemu-devel@nongnu.org; Tue, 01 Sep 2026 17:35:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1788298499; 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=RzSOUQXrV/MJjSZQvXmYHH1VOAIwgFiTLNUhuGjgUoQ=; b=Z79s9zBzOyNRPTwk2sgIMkKMx7Ty+EbIWOVzaSh28r5g0MsdvS2YYaxddge+XoHo8Wsu7h S6SPyUidL0C/XmDfBL2FTxPcY3n+QSUBBT0++gpVfqXBmJscuYQea4WLwX5d1v0rYDtbWx kksz35cedR2ZOTQFXQLvclIZEAql7B8= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-584-cxjJohVGMzeTW83kkz2kcA-1; Tue, 01 Sept 2026 17:34:55 -0400 X-MC-Unique: cxjJohVGMzeTW83kkz2kcA-1 X-Mimecast-MFC-AGG-ID: cxjJohVGMzeTW83kkz2kcA_1788298494 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 40156192DD43; Tue, 1 Sep 2026 21:34:54 +0000 (UTC) Received: from localhost (headnet05.pony-001.prod.iad2.dc.redhat.com [10.2.32.117]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 72B6118005B8; Tue, 1 Sep 2026 21:34:53 +0000 (UTC) Date: Tue, 1 Sep 2026 17:34:51 -0400 From: Stefan Hajnoczi To: Huiba Li Cc: qemu-block@nongnu.org, qemu-devel@nongnu.org Subject: Re: [RFC] block: add an overlaybd image format driver Message-ID: <20260901213451.GA738050@fedora> References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="XnxkcbvDN/FWB7ti" Content-Disposition: inline In-Reply-To: X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Received-SPF: pass client-ip=170.10.133.124; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 12 X-Spam_score: 1.2 X-Spam_bar: + X-Spam_report: (1.2 / 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_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_SBL_CSS=3.335, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development 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 --XnxkcbvDN/FWB7ti Content-Type: text/plain; charset=us-ascii Content-Disposition: inline By the way, I see that overylaybd already supports tcmu-runner, so I guess you've decided that the benefits of integrating directly into QEMU are worth it. Stefan --XnxkcbvDN/FWB7ti Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQEzBAEBCgAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAmqXRPsACgkQnKSrs4Gr c8gPpwf/SlHqzUXhxAAUTFEO84IZc2OTp7Dvzm0fGHVCI+uBIkoLZOXq/lzf5Zyg MuLvtQQba9JqaLtthuGW4YbdIs3wz73FV9gQclZzlFyukMhBbX97Vr6PlbDKPM7p Wu0roZIZQHp68HLQWMcl8afhUm2T7sROKpcrKibedLvsqkPgnt+BrF35gpeC5TcS 96qpA7sVQ7hCEtjZsfVJO4aKRay+PnZ9rIBf3DElvZ6XyHFfDzr+SqxPa7LTlGzB zbpxZzyuhgGZraWVxL6Kr0HcYVCy5fpxXLtvxhFAsyg/Hwog/Kl0ikasqZkLxOyC 0yLh3YiSGvNPi+E1JHXXX0ku2ztj5w== =vAtb -----END PGP SIGNATURE----- --XnxkcbvDN/FWB7ti--