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 9ED20CCF9E3 for ; Mon, 10 Nov 2025 10:24:01 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vIP3b-0007HJ-W6; Mon, 10 Nov 2025 05:23:32 -0500 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 1vIOuD-0001Yh-Bi for qemu-devel@nongnu.org; Mon, 10 Nov 2025 05:13:49 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vIOuB-0007aJ-Ia for qemu-devel@nongnu.org; Mon, 10 Nov 2025 05:13:48 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1762769626; 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=mdkDwqXfWLlMf/6ZNjt4tarYKjOCaK9C21xTKDJvhOE=; b=DV1YEjwek3Bgayv9+aDGpUxnMf4swIfjAQobYT8eeEYQzJwG9+VGSSbxFXF5Ujrm6QxDaq lrhMf30bLU+iL7pVM2Z027jH0HpqIyo3K3Cqql1u0V9/6KCaWsSM5gfnNL26dL7VjCag3r 3qLCcKQd8simwHWQYdh07rIPbtRjyc4= 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-483-mwZNI0YRNtWQ7FfkWkQFwQ-1; Mon, 10 Nov 2025 05:13:42 -0500 X-MC-Unique: mwZNI0YRNtWQ7FfkWkQFwQ-1 X-Mimecast-MFC-AGG-ID: mwZNI0YRNtWQ7FfkWkQFwQ_1762769621 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 4C2481956067; Mon, 10 Nov 2025 10:13:41 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.45.242.18]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 02C06180087B; Mon, 10 Nov 2025 10:13:40 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 5F19C21E6A27; Mon, 10 Nov 2025 11:13:38 +0100 (CET) From: Markus Armbruster To: =?utf-8?Q?Cl=C3=A9ment?= Chigot Cc: qemu-block@nongnu.org, qemu-devel@nongnu.org, kwolf@redhat.com, hreitz@redhat.com, eblake@redhat.com Subject: Re: [PATCH v2 5/5] vvfat: add support for "fat-size" options In-Reply-To: <20251107145327.539481-6-chigot@adacore.com> (=?utf-8?Q?=22Cl?= =?utf-8?Q?=C3=A9ment?= Chigot"'s message of "Fri, 7 Nov 2025 15:53:27 +0100") References: <20251107145327.539481-1-chigot@adacore.com> <20251107145327.539481-6-chigot@adacore.com> Date: Mon, 10 Nov 2025 11:13:38 +0100 Message-ID: <87zf8umbzh.fsf@pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Received-SPF: pass client-ip=170.10.129.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.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, 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_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_PASS=-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 Cl=C3=A9ment Chigot writes: > This allows more flexibility to vvfat backend. The values of "Number of > Heads" and "Sectors per track" are based on SD specifications Part 2. > > Due to the FAT architecture, not all sizes are reachable. Therefore, it > could be round up to the closest available size. > > FAT32 has not been adjusted and thus still default to 504 Mib. > > For floppy, only 1440 Kib and 2880 Kib are supported. > > Signed-off-by: Cl=C3=A9ment Chigot [...] > diff --git a/qapi/block-core.json b/qapi/block-core.json > index 8a479ba090..0bcb360320 100644 > --- a/qapi/block-core.json > +++ b/qapi/block-core.json > @@ -3478,11 +3478,17 @@ > # (default: true) > # (since 10.2) > # > +# @fat-size: size of the device in bytes. Due to FAT underlying > +# architecture, this size can be rounded up to the closest valid > +# size. > +# (since 10.2) > +# Can you explain again why you moved from @size to @fat-size? I assume you dropped the horrible special floppy sizes because ordinary sizes suffice. Correct? > # Since: 2.9 > ## > { 'struct': 'BlockdevOptionsVVFAT', > 'data': { 'dir': 'str', '*fat-type': 'int', '*floppy': 'bool', > - '*label': 'str', '*rw': 'bool', '*partitioned': 'bool' } } > + '*label': 'str', '*rw': 'bool', '*partitioned': 'bool', > + 'fat-size': 'int' } } >=20=20 > ## > # @BlockdevOptionsGenericFormat: