From patchwork Tue May 26 08:25:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Privoznik X-Patchwork-Id: 11570111 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A0BF790 for ; Tue, 26 May 2020 08:28:10 +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 3743220885 for ; Tue, 26 May 2020 08:28:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="hhRpHjwT" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3743220885 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:55336 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jdUwT-0006qU-4r for patchwork-qemu-devel@patchwork.kernel.org; Tue, 26 May 2020 04:28:09 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48616) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jdUuJ-00042l-O6 for qemu-devel@nongnu.org; Tue, 26 May 2020 04:25:55 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:40754 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jdUuD-00088t-W4 for qemu-devel@nongnu.org; Tue, 26 May 2020 04:25:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1590481548; 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=gg8u3jfNGlAp6Pm3pR9gWcirTRp9uOmSlHy7B7fFrJI=; b=hhRpHjwTKl1CmF8ysQd21IW9xVeqVMNJfGtJu/3ffWiCYIBvbgppmoP215Alcvq3CiZKjG G6595t96pmNcOJXsCZpNGj0dr2LfiVYoJZe12O/jfb5/ZrNK9+laxfI0TkNtJX8g/GvGEw Y5yKctRXb6kUJY5Np1x59oHKuNQdH/Q= 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-176-UBFkiSNROqaNVTSplV7C7Q-1; Tue, 26 May 2020 04:25:47 -0400 X-MC-Unique: UBFkiSNROqaNVTSplV7C7Q-1 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 518E080183C for ; Tue, 26 May 2020 08:25:46 +0000 (UTC) Received: from localhost.localdomain (unknown [10.40.195.106]) by smtp.corp.redhat.com (Postfix) with ESMTP id 41B8710013D2; Tue, 26 May 2020 08:25:45 +0000 (UTC) From: Michal Privoznik To: qemu-devel@nongnu.org Subject: [PATCH v2 2/2] qmp: Expose MachineClass::default_ram_id Date: Tue, 26 May 2020 10:25:35 +0200 Message-Id: <9384422f63fe594a54d801f9cb4539b1d2ce9b67.1590481402.git.mprivozn@redhat.com> In-Reply-To: References: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.120; envelope-from=mprivozn@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/26 01:19:28 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_PASS=-0.001 autolearn=_AUTOLEARN 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: imammedo@redhat.com, ehabkost@redhat.com, armbru@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" If a management application (like Libvirt) want's to preserve migration ability and switch to '-machine memory-backend' it needs to set exactly the same RAM id as QEMU would. Since the id is machine type dependant, expose it under 'query-machines' result. Some machine types don't have the attribute set (riscv family for example), therefore the QMP attribute must be optional. Signed-off-by: Michal Privoznik Reviewed-by: Igor Mammedov --- hw/core/machine-qmp-cmds.c | 4 ++++ qapi/machine.json | 5 ++++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c index 2c5da8413d..3e11a740c9 100644 --- a/hw/core/machine-qmp-cmds.c +++ b/hw/core/machine-qmp-cmds.c @@ -238,6 +238,10 @@ MachineInfoList *qmp_query_machines(Error **errp) info->default_cpu_type = g_strdup(mc->default_cpu_type); info->has_default_cpu_type = true; } + if (mc->default_ram_id) { + info->default_ram_id = g_strdup(mc->default_ram_id); + info->has_default_ram_id = true; + } entry = g_malloc0(sizeof(*entry)); entry->value = info; diff --git a/qapi/machine.json b/qapi/machine.json index 39caa1d914..76c1606390 100644 --- a/qapi/machine.json +++ b/qapi/machine.json @@ -355,13 +355,16 @@ # @default-cpu-type: default CPU model typename if none is requested via # the -cpu argument. (since 4.2) # +# @default-ram-id: the default ID of initial RAM memory backend (since 5.1) +# # Since: 1.2.0 ## { 'struct': 'MachineInfo', 'data': { 'name': 'str', '*alias': 'str', '*is-default': 'bool', 'cpu-max': 'int', 'hotpluggable-cpus': 'bool', 'numa-mem-supported': 'bool', - 'deprecated': 'bool', '*default-cpu-type': 'str' } } + 'deprecated': 'bool', '*default-cpu-type': 'str', + '*default-ram-id': 'str' } } ## # @query-machines: