From nobody Mon Feb 9 01:01:49 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1631537519053210.09304838243315; Mon, 13 Sep 2021 05:51:59 -0700 (PDT) Received: from localhost ([::1]:45714 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mPlRF-0001ET-Vk for importer@patchew.org; Mon, 13 Sep 2021 08:51:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51440) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mPlFT-0000Em-Ei for qemu-devel@nongnu.org; Mon, 13 Sep 2021 08:39:47 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:41976) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mPlFP-0000g8-MG for qemu-devel@nongnu.org; Mon, 13 Sep 2021 08:39:46 -0400 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-380-vrZaKja9NeyY73FerrmZ2A-1; Mon, 13 Sep 2021 08:39:41 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E46F81084688; Mon, 13 Sep 2021 12:39:40 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-112-14.ams2.redhat.com [10.36.112.14]) by smtp.corp.redhat.com (Postfix) with ESMTPS id C0261369A; Mon, 13 Sep 2021 12:39:37 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 1F25A113853B; Mon, 13 Sep 2021 14:39:32 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1631536782; 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=sHLYav7WarZ13M6UwpgoWPQQS93llwmNuhFuc94ryMA=; b=Lcu+xMW5IRNHd4nwsBkpEpm+esQb9bDoNqko+AaG6g1Nc06+G35NO/60lu0Cjgp1+Z0h1Z vHYEOfCkrAMGEGIk0iRbcyQUNe0bR+hqaJcKvqlAvojsxn9ISv7q6glOvuEIMrFtdPkgDi 3L2rV2cycQfuigp3/pEXQJmM6QqbmeM= X-MC-Unique: vrZaKja9NeyY73FerrmZ2A-1 From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PATCH 06/22] qapi: Convert simple union MemoryDeviceInfo to flat one Date: Mon, 13 Sep 2021 14:39:16 +0200 Message-Id: <20210913123932.3306639-7-armbru@redhat.com> In-Reply-To: <20210913123932.3306639-1-armbru@redhat.com> References: <20210913123932.3306639-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=armbru@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.398, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-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: jsnow@redhat.com, eblake@redhat.com, Eduardo Habkost , marcandre.lureau@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1631537521316100001 Content-Type: text/plain; charset="utf-8" Simple unions predate flat unions. Having both complicates the QAPI schema language and the QAPI generator. We haven't been using simple unions in new code for a long time, because they are less flexible and somewhat awkward on the wire. To prepare for their removal, convert simple union MemoryDeviceInfo to an equivalent flat one. Adds some boilerplate to the schema, which is a bit ugly, but a lot easier to maintain than the simple union feature. Cc: Eduardo Habkost Cc: Marcel Apfelbaum Signed-off-by: Markus Armbruster --- qapi/machine.json | 42 ++++++++++++++++++++++++++++++++++++++---- 1 file changed, 38 insertions(+), 4 deletions(-) diff --git a/qapi/machine.json b/qapi/machine.json index 157712f006..b3bdcccb72 100644 --- a/qapi/machine.json +++ b/qapi/machine.json @@ -1194,6 +1194,38 @@ } } =20 +## +# @MemoryDeviceInfoKind: +# +# Since: 6.1 +## +{ 'enum': 'MemoryDeviceInfoKind', + 'data': [ 'dimm', 'nvdimm', 'virtio-pmem', 'virtio-mem' ] } + +## +# @PCDIMMDeviceInfoWrapper: +# +# Since: 6.1 +## +{ 'struct': 'PCDIMMDeviceInfoWrapper', + 'data': { 'data': 'PCDIMMDeviceInfo' } } + +## +# @VirtioPMEMDeviceInfoWrapper: +# +# Since: 6.1 +## +{ 'struct': 'VirtioPMEMDeviceInfoWrapper', + 'data': { 'data': 'VirtioPMEMDeviceInfo' } } + +## +# @VirtioMEMDeviceInfoWrapper: +# +# Since: 6.1 +## +{ 'struct': 'VirtioMEMDeviceInfoWrapper', + 'data': { 'data': 'VirtioMEMDeviceInfo' } } + ## # @MemoryDeviceInfo: # @@ -1205,10 +1237,12 @@ # Since: 2.1 ## { 'union': 'MemoryDeviceInfo', - 'data': { 'dimm': 'PCDIMMDeviceInfo', - 'nvdimm': 'PCDIMMDeviceInfo', - 'virtio-pmem': 'VirtioPMEMDeviceInfo', - 'virtio-mem': 'VirtioMEMDeviceInfo' + 'base': { 'type': 'MemoryDeviceInfoKind' }, + 'discriminator': 'type', + 'data': { 'dimm': 'PCDIMMDeviceInfoWrapper', + 'nvdimm': 'PCDIMMDeviceInfoWrapper', + 'virtio-pmem': 'VirtioPMEMDeviceInfoWrapper', + 'virtio-mem': 'VirtioMEMDeviceInfoWrapper' } } =20 --=20 2.31.1