From nobody Tue Nov 4 21:18:45 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 1530792659105716.9620498548124; Thu, 5 Jul 2018 05:10:59 -0700 (PDT) Received: from localhost ([::1]:52152 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fb36A-000126-49 for importer@patchew.org; Thu, 05 Jul 2018 08:10:58 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50946) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fb2vY-0000pG-1I for qemu-devel@nongnu.org; Thu, 05 Jul 2018 08:00:01 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fb2vW-0002sZ-CX for qemu-devel@nongnu.org; Thu, 05 Jul 2018 08:00:00 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:34168 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 1fb2vW-0002rS-7A for qemu-devel@nongnu.org; Thu, 05 Jul 2018 07:59:58 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id B1250401EF02 for ; Thu, 5 Jul 2018 11:59:57 +0000 (UTC) Received: from t460s.redhat.com (ovpn-116-172.ams2.redhat.com [10.36.116.172]) by smtp.corp.redhat.com (Postfix) with ESMTP id 514AF2026D74; Thu, 5 Jul 2018 11:59:56 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Date: Thu, 5 Jul 2018 13:59:39 +0200 Message-Id: <20180705115943.29402-8-david@redhat.com> In-Reply-To: <20180705115943.29402-1-david@redhat.com> References: <20180705115943.29402-1-david@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Thu, 05 Jul 2018 11:59:57 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Thu, 05 Jul 2018 11:59:57 +0000 (UTC) for IP:'10.11.54.4' DOMAIN:'int-mx04.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 v1 07/11] pc-dimm: implement memory device class function set_addr() 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: Eduardo Habkost , "Michael S . Tsirkin" , David Hildenbrand , Markus Armbruster , Stefan Hajnoczi , Igor Mammedov 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 can change the address as long as the device has not been plugged (=3D=3D memory region mapped) yet. Signed-off-by: David Hildenbrand --- hw/mem/pc-dimm.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c index a208b17c64..bb8e10903f 100644 --- a/hw/mem/pc-dimm.c +++ b/hw/mem/pc-dimm.c @@ -236,6 +236,28 @@ static uint64_t pc_dimm_md_get_addr(const MemoryDevice= State *md) return dimm->addr; } =20 +static void pc_dimm_md_set_addr(MemoryDeviceState *md, uint64_t addr, + Error **errp) +{ + PCDIMMDevice *dimm =3D PC_DIMM(md); + const PCDIMMDeviceClass *ddc =3D PC_DIMM_GET_CLASS(md); + Error *local_err =3D NULL; + MemoryRegion *mr; + + mr =3D ddc->get_memory_region(dimm, &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + + if (memory_region_is_mapped(mr)) { + error_setg(errp, "Can't change address, memory region already mapp= ed."); + return; + } + + dimm->addr =3D addr; +} + static uint64_t pc_dimm_md_get_plugged_size(const MemoryDeviceState *md, Error **errp) { @@ -307,6 +329,7 @@ static void pc_dimm_class_init(ObjectClass *oc, void *d= ata) ddc->get_vmstate_memory_region =3D pc_dimm_get_memory_region; =20 mdc->get_addr =3D pc_dimm_md_get_addr; + mdc->set_addr =3D pc_dimm_md_set_addr; mdc->get_plugged_size =3D pc_dimm_md_get_plugged_size; mdc->get_memory_region =3D pc_dimm_md_get_memory_region; mdc->fill_device_info =3D pc_dimm_md_fill_device_info; --=20 2.17.1