From nobody Mon Feb 9 08:56:15 2026 Delivered-To: importer@patchew.org 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; 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 ARC-Seal: i=1; a=rsa-sha256; t=1582128676; cv=none; d=zohomail.com; s=zohoarc; b=mrLfqBpvKSwABz6oYQIYlELfoGE+oM6sEg1IKp3Y7CbTU1awYgmK0E+JD5K1N1TT3JIVkGc9Cwg4UoH5kn4l8YARYwdGtBeHrpCEgJtdOUo5bjyXGYgThrLFT6AcKBowK++px0ySST3tZ1FpgnQUnbOvVRFjN9f0HEVn03DTJSc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1582128676; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=DjIYVNrpDNIdl2OX1WAgyvwZjRDXaHnc7xSMfjy5YiU=; b=KYnW4DbBW6F5mzLoiNkoKW4gak5NslU/texXn3yqawP6HyiVnkKDURBK9cTf38C1Oi6WDsVYpEgqTzyyS90NaiaqYiKl8VmKYMMmDLj4Cx0E1ylj/pE2qIIXZRVste+cOMKR0c8gF4KcvZO/wUGbYx8ykkwjZiB5oC6XDSHGsHo= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1582128676440352.1011594733685; Wed, 19 Feb 2020 08:11:16 -0800 (PST) Received: from localhost ([::1]:55330 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j4RwR-0003mb-3h for importer@patchew.org; Wed, 19 Feb 2020 11:11:15 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:36986) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j4RvJ-0001us-S3 for qemu-devel@nongnu.org; Wed, 19 Feb 2020 11:10:06 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j4RvI-0000TA-N9 for qemu-devel@nongnu.org; Wed, 19 Feb 2020 11:10:05 -0500 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:44947) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j4RvI-0000St-JI for qemu-devel@nongnu.org; Wed, 19 Feb 2020 11:10:04 -0500 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-22-RusQsXHJPSm9VVfBUeDC7w-1; Wed, 19 Feb 2020 11:10:00 -0500 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E66D28E131E; Wed, 19 Feb 2020 16:09:59 +0000 (UTC) Received: from dell-r430-03.lab.eng.brq.redhat.com (dell-r430-03.lab.eng.brq.redhat.com [10.37.153.18]) by smtp.corp.redhat.com (Postfix) with ESMTP id E72EF48; Wed, 19 Feb 2020 16:09:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1582128604; 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=DjIYVNrpDNIdl2OX1WAgyvwZjRDXaHnc7xSMfjy5YiU=; b=FTwKxOVRz1WTDlZMMkDRpLDs2k1yAPVPLQgWMBwx7pZwoq9I8ijiusHHpDPaNu4IXD51XV nhC1J1VaODtIDFHRijHvFXJFimaP052j/xiYHkCTTaNWTHpVjEA26mr47ATK5DaFwIuR9i AXR1oRr/Imwu4X6tHGFeZktyi3yW4Pg= From: Igor Mammedov To: qemu-devel@nongnu.org Subject: [PATCH v6 02/79] machine: introduce memory-backend property Date: Wed, 19 Feb 2020 11:08:36 -0500 Message-Id: <20200219160953.13771-3-imammedo@redhat.com> In-Reply-To: <20200219160953.13771-1-imammedo@redhat.com> References: <20200219160953.13771-1-imammedo@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-MC-Unique: RusQsXHJPSm9VVfBUeDC7w-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.61 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: pasic@linux.ibm.com, Paolo Bonzini , ehabkost@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Property will contain link to memory backend that will be used for backing initial RAM. Follow up commit will alias -mem-path and -mem-prealloc CLI options into memory backend options to make memory handling consistent (using only hostmem backend family for guest RAM allocation). Signed-off-by: Igor Mammedov Reviewed-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- v4: * make property a string, instead of a link. Fixes -M memory-backend=3Dfoo: foo not found error since foo creation is delayed well beyond point where machine's properties are set v3: * rename property name from ram-memdev to memory-backend (Paolo Bonzini ) CC: ehabkost@redhat.com CC: pbonzini@redhat.com CC: pasic@linux.ibm.com --- include/hw/boards.h | 2 ++ hw/core/machine.c | 24 ++++++++++++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/include/hw/boards.h b/include/hw/boards.h index fb1b43d5b9..7b4b6b79d7 100644 --- a/include/hw/boards.h +++ b/include/hw/boards.h @@ -4,6 +4,7 @@ #define HW_BOARDS_H =20 #include "exec/memory.h" +#include "sysemu/hostmem.h" #include "sysemu/blockdev.h" #include "sysemu/accel.h" #include "qapi/qapi-types-machine.h" @@ -285,6 +286,7 @@ struct MachineState { bool enforce_config_section; bool enable_graphics; char *memory_encryption; + char *ram_memdev_id; DeviceMemoryState *device_memory; =20 ram_addr_t ram_size; diff --git a/hw/core/machine.c b/hw/core/machine.c index 84812a1d1c..1a6e485c87 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -508,6 +508,22 @@ static void validate_sysbus_device(SysBusDevice *sbdev= , void *opaque) } } =20 +static char *machine_get_memdev(Object *obj, Error **errp) +{ + MachineState *ms =3D MACHINE(obj); + + return g_strdup(ms->ram_memdev_id); +} + +static void machine_set_memdev(Object *obj, const char *value, Error **err= p) +{ + MachineState *ms =3D MACHINE(obj); + + g_free(ms->ram_memdev_id); + ms->ram_memdev_id =3D g_strdup(value); +} + + static void machine_init_notify(Notifier *notifier, void *data) { MachineState *machine =3D MACHINE(qdev_get_machine()); @@ -889,6 +905,14 @@ static void machine_initfn(Object *obj) "Table (HMAT)", NULL); } =20 + object_property_add_str(obj, "memory-backend", + machine_get_memdev, machine_set_memdev, + &error_abort); + object_property_set_description(obj, "memory-backend", + "Set RAM backend" + "Valid value is ID of hostmem based ba= ckend", + &error_abort); + /* Register notifier when init is done for sysbus sanity checks */ ms->sysbus_notifier.notify =3D machine_init_notify; qemu_add_machine_init_done_notifier(&ms->sysbus_notifier); --=20 2.18.1