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 X-Spam-Level: X-Spam-Status: No, score=-6.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C334C33CB2 for ; Wed, 15 Jan 2020 15:55:48 +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 1C59A2077B for ; Wed, 15 Jan 2020 15:55:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="fxI8ltNK" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1C59A2077B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:56170 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1irl1G-0006X7-So for qemu-devel@archiver.kernel.org; Wed, 15 Jan 2020 10:55:46 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:50135) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1irkLN-0001fM-GH for qemu-devel@nongnu.org; Wed, 15 Jan 2020 10:12:31 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1irkLL-0000h6-OM for qemu-devel@nongnu.org; Wed, 15 Jan 2020 10:12:29 -0500 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:46002 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1irkLL-0000gl-JZ for qemu-devel@nongnu.org; Wed, 15 Jan 2020 10:12:27 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1579101147; 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=PJlCD2JradsghflyEMq7rSMnpFDz8KzEvNJhvIgn0qw=; b=fxI8ltNKwc83lsW85akfmhAnGVi4NALb/j4DX//tKiY2ZW3ZI+VjkHa5Cv/yrUYL1ilIh1 dpMYeaM4OFhitwriNUJ8mpMZ8mm32mnQzO91bMWaLYEPg2+v4ia2k+H5JpkEgjPMRV7C1/ czaBQ1q3ZT+GSZ/41CHTP+3H7T6PeMQ= 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-358-PX7tDXq-Mrm36JZDvXVhgg-1; Wed, 15 Jan 2020 10:12:25 -0500 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 112471005527; Wed, 15 Jan 2020 15:12:24 +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 197F4194B2; Wed, 15 Jan 2020 15:12:16 +0000 (UTC) From: Igor Mammedov To: qemu-devel@nongnu.org Subject: [PATCH v2 82/86] numa: forbid '-numa node, mem' for 5.0 and newer machine types Date: Wed, 15 Jan 2020 16:07:37 +0100 Message-Id: <1579100861-73692-83-git-send-email-imammedo@redhat.com> In-Reply-To: <1579100861-73692-1-git-send-email-imammedo@redhat.com> References: <1579100861-73692-1-git-send-email-imammedo@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-MC-Unique: PX7tDXq-Mrm36JZDvXVhgg-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=US-ASCII 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: 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: peter.maydell@linaro.org, ehabkost@redhat.com, mst@redhat.com, libvir-list@redhat.com, qemu-arm@nongnu.org, qemu-ppc@nongnu.org, pbonzini@redhat.com, david@gibson.dropbear.id.au, rth@twiddle.net Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Deprecation period is ran out and it's a time to flip the switch introduced by cd5ff8333a. Disable legacy option for new machine types and amend documentation. Signed-off-by: Igor Mammedov --- CC: peter.maydell@linaro.org CC: ehabkost@redhat.com CC: marcel.apfelbaum@gmail.com CC: mst@redhat.com CC: pbonzini@redhat.com CC: rth@twiddle.net CC: david@gibson.dropbear.id.au CC: libvir-list@redhat.com CC: qemu-arm@nongnu.org CC: qemu-ppc@nongnu.org --- hw/arm/virt.c | 2 +- hw/core/numa.c | 6 ++++++ hw/i386/pc.c | 1 - hw/i386/pc_piix.c | 1 + hw/i386/pc_q35.c | 1 + hw/ppc/spapr.c | 2 +- qemu-deprecated.texi | 16 ---------------- qemu-options.hx | 8 ++++---- 8 files changed, 14 insertions(+), 23 deletions(-) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index e2fbca3..49de0d8 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -2049,7 +2049,6 @@ static void virt_machine_class_init(ObjectClass *oc, = void *data) hc->pre_plug =3D virt_machine_device_pre_plug_cb; hc->plug =3D virt_machine_device_plug_cb; hc->unplug_request =3D virt_machine_device_unplug_request_cb; - mc->numa_mem_supported =3D true; mc->auto_enable_numa_with_memhp =3D true; mc->default_ram_id =3D "mach-virt.ram"; } @@ -2153,6 +2152,7 @@ DEFINE_VIRT_MACHINE_AS_LATEST(5, 0) static void virt_machine_4_2_options(MachineClass *mc) { compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); + mc->numa_mem_supported =3D true; } DEFINE_VIRT_MACHINE(4, 2) =20 diff --git a/hw/core/numa.c b/hw/core/numa.c index 0970a30..3177066 100644 --- a/hw/core/numa.c +++ b/hw/core/numa.c @@ -117,6 +117,12 @@ static void parse_numa_node(MachineState *ms, NumaNode= Options *node, } =20 if (node->has_mem) { + if (!mc->numa_mem_supported) { + error_setg(errp, "Parameter -numa node,mem is not supported by= this" + " machine type. Use -numa node,memdev instead"); + return; + } + numa_info[nodenr].node_mem =3D node->mem; if (!qtest_enabled()) { warn_report("Parameter -numa node,mem is deprecated," diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 21b8290..fa8d024 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1947,7 +1947,6 @@ static void pc_machine_class_init(ObjectClass *oc, vo= id *data) hc->unplug =3D pc_machine_device_unplug_cb; mc->default_cpu_type =3D TARGET_DEFAULT_CPU_TYPE; mc->nvdimm_supported =3D true; - mc->numa_mem_supported =3D true; mc->default_ram_id =3D "pc.ram"; =20 object_class_property_add(oc, PC_MACHINE_DEVMEM_REGION_SIZE, "int", diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index fa12203..0a9b9e0 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -435,6 +435,7 @@ static void pc_i440fx_4_2_machine_options(MachineClass = *m) pc_i440fx_5_0_machine_options(m); m->alias =3D NULL; m->is_default =3D 0; + m->numa_mem_supported =3D true; compat_props_add(m->compat_props, hw_compat_4_2, hw_compat_4_2_len); compat_props_add(m->compat_props, pc_compat_4_2, pc_compat_4_2_len); } diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c index 84cf925..4d6e2be 100644 --- a/hw/i386/pc_q35.c +++ b/hw/i386/pc_q35.c @@ -363,6 +363,7 @@ static void pc_q35_4_2_machine_options(MachineClass *m) { pc_q35_5_0_machine_options(m); m->alias =3D NULL; + m->numa_mem_supported =3D true; compat_props_add(m->compat_props, hw_compat_4_2, hw_compat_4_2_len); compat_props_add(m->compat_props, pc_compat_4_2, pc_compat_4_2_len); } diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index bcbe1f1..2686b73 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -4383,7 +4383,6 @@ static void spapr_machine_class_init(ObjectClass *oc,= void *data) * in which LMBs are represented and hot-added */ mc->numa_mem_align_shift =3D 28; - mc->numa_mem_supported =3D true; mc->auto_enable_numa =3D true; =20 smc->default_caps.caps[SPAPR_CAP_HTM] =3D SPAPR_CAP_OFF; @@ -4465,6 +4464,7 @@ static void spapr_machine_4_2_class_options(MachineCl= ass *mc) { spapr_machine_5_0_class_options(mc); compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); + mc->numa_mem_supported =3D true; } =20 DEFINE_SPAPR_MACHINE(4_2, "4.2", false); diff --git a/qemu-deprecated.texi b/qemu-deprecated.texi index 982af95..17a0e1d 100644 --- a/qemu-deprecated.texi +++ b/qemu-deprecated.texi @@ -89,22 +89,6 @@ error in the future. The @code{-realtime mlock=3Don|off} argument has been replaced by the @code{-overcommit mem-lock=3Don|off} argument. =20 -@subsection -numa node,mem=3D@var{size} (since 4.1) - -The parameter @option{mem} of @option{-numa node} is used to assign a part= of -guest RAM to a NUMA node. But when using it, it's impossible to manage spe= cified -RAM chunk on the host side (like bind it to a host node, setting bind poli= cy, ...), -so guest end-ups with the fake NUMA configuration with suboptiomal perform= ance. -However since 2014 there is an alternative way to assign RAM to a NUMA nod= e -using parameter @option{memdev}, which does the same as @option{mem} and a= dds -means to actualy manage node RAM on the host side. Use parameter @option{m= emdev} -with @var{memory-backend-ram} backend as an replacement for parameter @opt= ion{mem} -to achieve the same fake NUMA effect or a properly configured -@var{memory-backend-file} backend to actually benefit from NUMA configurat= ion. -In future new machine versions will not accept the option but it will stil= l -work with old machine types. User can check QAPI schema to see if the lega= cy -option is supported by looking at MachineInfo::numa-mem-supported property= . - @subsection -numa node (without memory specified) (since 4.1) =20 Splitting RAM by default between NUMA nodes has the same issues as @option= {mem} diff --git a/qemu-options.hx b/qemu-options.hx index 709162c..55500bd 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -223,10 +223,10 @@ For example: -numa cpu,node-id=3D0,socket-id=3D0 -numa cpu,node-id=3D1,socket-id=3D1 @end example =20 -@samp{mem} assigns a given RAM amount to a node. @samp{memdev} -assigns RAM from a given memory backend device to a node. If -@samp{mem} and @samp{memdev} are omitted in all nodes, RAM is -split equally between them. +Legacy @samp{mem} assigns a given RAM amount to a node (not supported for = 5.0 +and newer machine types). @samp{memdev} assigns RAM from a given memory ba= ckend +device to a node. If @samp{mem} and @samp{memdev} are omitted in all nodes= , RAM +is split equally between them. =20 @samp{mem} and @samp{memdev} are mutually exclusive. Furthermore, if one node uses @samp{memdev}, all of them have to use it. --=20 2.7.4