From nobody Wed Oct 29 20:43:06 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 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 [208.118.235.17]) by mx.zohomail.com with SMTPS id 1526545587353988.3363240440641; Thu, 17 May 2018 01:26:27 -0700 (PDT) Received: from localhost ([::1]:42111 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fJEEz-0002SI-Cb for importer@patchew.org; Thu, 17 May 2018 04:26:25 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49492) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fJE4z-0002oW-PK for qemu-devel@nongnu.org; Thu, 17 May 2018 04:16:06 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fJE4t-00030l-T9 for qemu-devel@nongnu.org; Thu, 17 May 2018 04:16:05 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:50648 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fJE4t-00030V-Ov; Thu, 17 May 2018 04:15:59 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 5FABA40201AF; Thu, 17 May 2018 08:15:59 +0000 (UTC) Received: from t460s.redhat.com (ovpn-117-24.ams2.redhat.com [10.36.117.24]) by smtp.corp.redhat.com (Postfix) with ESMTP id CE45A215CDB7; Thu, 17 May 2018 08:15:56 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Date: Thu, 17 May 2018 10:15:23 +0200 Message-Id: <20180517081527.14410-11-david@redhat.com> In-Reply-To: <20180517081527.14410-1-david@redhat.com> References: <20180517081527.14410-1-david@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Thu, 17 May 2018 08:15:59 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Thu, 17 May 2018 08:15:59 +0000 (UTC) for IP:'10.11.54.6' DOMAIN:'int-mx06.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'david@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH v4 10/14] memory-device: new functions to handle plug/unplug X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Pankaj Gupta , Eduardo Habkost , "Michael S . Tsirkin" , Cornelia Huck , David Hildenbrand , Markus Armbruster , Alexander Graf , Christian Borntraeger , qemu-s390x@nongnu.org, qemu-ppc@nongnu.org, Paolo Bonzini , Marcel Apfelbaum , Igor Mammedov , Luiz Capitulino , David Gibson , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" We will need a handful of new functions: - set_addr(): To set the calculated address - get_memory_region(): To add it to the memory region container - get_addr(): If the device has any specific alignment requirements Using these and the existing functions, we can properly plug/unplug memory devices. Signed-off-by: David Hildenbrand --- include/hw/mem/memory-device.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/hw/mem/memory-device.h b/include/hw/mem/memory-device.h index 2853b084b5..62d906be50 100644 --- a/include/hw/mem/memory-device.h +++ b/include/hw/mem/memory-device.h @@ -29,14 +29,24 @@ typedef struct MemoryDeviceState { Object parent_obj; } MemoryDeviceState; =20 +/* + * MemoryDeviceClass functions should only be called on realized + * MemoryDevice instances. + */ typedef struct MemoryDeviceClass { InterfaceClass parent_class; =20 + /* required functions that have to be implemented */ uint64_t (*get_addr)(const MemoryDeviceState *md); + void (*set_addr)(MemoryDeviceState *md, uint64_t addr); + MemoryRegion *(*get_memory_region)(MemoryDeviceState *md); uint64_t (*get_plugged_size)(const MemoryDeviceState *md); uint64_t (*get_region_size)(const MemoryDeviceState *md); void (*fill_device_info)(const MemoryDeviceState *md, MemoryDeviceInfo *info); + + /* optional functions that can be implemented */ + uint64_t (*get_align)(const MemoryDeviceState *md); } MemoryDeviceClass; =20 MemoryDeviceInfoList *qmp_memory_device_list(void); --=20 2.14.3