From nobody Tue Feb 10 00:58:31 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1580483643418583.2684306768464; Fri, 31 Jan 2020 07:14:03 -0800 (PST) Received: from localhost ([::1]:54464 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ixXzd-00063R-UV for importer@patchew.org; Fri, 31 Jan 2020 10:14:01 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:38909) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ixXy2-0003qV-Qu for qemu-devel@nongnu.org; Fri, 31 Jan 2020 10:12:23 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ixXy0-0003ZC-Bd for qemu-devel@nongnu.org; Fri, 31 Jan 2020 10:12:21 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:33653 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ixXxz-0003WN-Tb for qemu-devel@nongnu.org; Fri, 31 Jan 2020 10:12:20 -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-375-6YfG3V8TNVe5UjD41iTvVQ-1; Fri, 31 Jan 2020 10:12:13 -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 BDEE91005512; Fri, 31 Jan 2020 15:12:11 +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 C278B8887E; Fri, 31 Jan 2020 15:12:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1580483536; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=OiTH3RCZbiNiyeo52IdgEALm97v/0+Rpq/gsC0EpHEo=; b=LjA6+cl22oqTpPzc63qNN7htWW1YnXCj99E4zaT/HEJKuFE4Aik3YFw2R6dQi2Cc6WuhNr s+9HJTAyZNX9/iVxl8LFNYOAkwT/ppOjDsOgA7Og/F20T+Kuw7Hw7RLoZF/FoAP/EcVCaB y5x7JrbM1U1ulSo6sVkhdQfLlHmnu6U= From: Igor Mammedov To: qemu-devel@nongnu.org Subject: [PATCH v4 02/80] machine: introduce memory-backend property Date: Fri, 31 Jan 2020 16:08:32 +0100 Message-Id: <1580483390-131164-3-git-send-email-imammedo@redhat.com> In-Reply-To: <1580483390-131164-1-git-send-email-imammedo@redhat.com> References: <1580483390-131164-1-git-send-email-imammedo@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-MC-Unique: 6YfG3V8TNVe5UjD41iTvVQ-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] [fuzzy] X-Received-From: 207.211.31.120 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, pbonzini@redhat.com, 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) MIME-Version: 1.0 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 --- 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 fb1b43d..7b4b6b7 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 3e288bf..752a227 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -505,6 +505,22 @@ 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()); @@ -886,6 +902,14 @@ 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 2.7.4