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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EEEB4C433EF for ; Mon, 11 Oct 2021 17:47:12 +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 8FFB760EB1 for ; Mon, 11 Oct 2021 17:47:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 8FFB760EB1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:44986 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mZzOJ-0006kC-La for qemu-devel@archiver.kernel.org; Mon, 11 Oct 2021 13:47:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57586) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mZzMs-0005I2-5o for qemu-devel@nongnu.org; Mon, 11 Oct 2021 13:45:42 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:32171) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mZzMj-0001QL-MK for qemu-devel@nongnu.org; Mon, 11 Oct 2021 13:45:40 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1633974332; 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=2C6ZPQ/IUloN0BLppwVSOFa1qzaeGoIE0ME10GKv/1o=; b=IJTvB6xiPqAtq98Tk5kUNvhsxLcpDKyvlyHUwyUn6CnNwbib8pLrCqsGnRm8hy77cHh1vd jcVX5DoU0cx2A0AzjY5FBG8NfMnbyjmxACnyMTbN0kseSIjRw5BwkCDL9UGMJTl0opYeJF chqej4geK+DXi636GXfk23Y2fgMnhVM= 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-367-JTphlqWzMSGFoRl7OjXwzw-1; Mon, 11 Oct 2021 13:45:29 -0400 X-MC-Unique: JTphlqWzMSGFoRl7OjXwzw-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 4BB6D100C67B; Mon, 11 Oct 2021 17:45:28 +0000 (UTC) Received: from t480s.redhat.com (unknown [10.39.192.99]) by smtp.corp.redhat.com (Postfix) with ESMTP id BD688ADCF; Mon, 11 Oct 2021 17:45:25 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Subject: [PATCH v1 1/2] machine: Use host_memory_backend_is_mapped() in machine_consume_memdev() Date: Mon, 11 Oct 2021 19:45:20 +0200 Message-Id: <20211011174522.14351-2-david@redhat.com> In-Reply-To: <20211011174522.14351-1-david@redhat.com> References: <20211011174522.14351-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=david@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" Received-SPF: pass client-ip=216.205.24.124; envelope-from=david@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.049, 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: Eduardo Habkost , David Hildenbrand , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Peter Xu , Igor Mammedov , Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" memory_region_is_mapped() is the wrong check, we actually want to check whether the backend is already marked mapped. For example, memory regions mapped via an alias, such as NVDIMMs, currently don't make memory_region_is_mapped() return "true". As the machine is initialized before any memory devices (and thereby before NVDIMMs are initialized), this isn't a fix but merely a cleanup. Signed-off-by: David Hildenbrand --- hw/core/machine.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/core/machine.c b/hw/core/machine.c index b8d95eec32..a1db865939 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -1260,7 +1260,7 @@ MemoryRegion *machine_consume_memdev(MachineState *machine, { MemoryRegion *ret = host_memory_backend_get_memory(backend); - if (memory_region_is_mapped(ret)) { + if (host_memory_backend_is_mapped(backend)) { error_report("memory backend %s can't be used multiple times.", object_get_canonical_path_component(OBJECT(backend))); exit(EXIT_FAILURE); -- 2.31.1