From nobody Tue Feb 10 11:12:53 2026 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; dkim=fail; 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 149986603094218.869725458119888; Wed, 12 Jul 2017 06:27:10 -0700 (PDT) Received: from localhost ([::1]:52941 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dVHfW-0006my-I2 for importer@patchew.org; Wed, 12 Jul 2017 09:27:06 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49841) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dVHRF-0002JN-2g for qemu-devel@nongnu.org; Wed, 12 Jul 2017 09:12:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dVHRD-0002OF-VC for qemu-devel@nongnu.org; Wed, 12 Jul 2017 09:12:21 -0400 Received: from ozlabs.org ([103.22.144.67]:43081) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dVHRD-0002Kd-Iu; Wed, 12 Jul 2017 09:12:19 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 3x6zqh3Mn1z9sNx; Wed, 12 Jul 2017 23:11:43 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1499865104; bh=XAdZYVFb7q/VXCkH90EIfo3JAk6HGofBAXWthms56Io=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ygg23/C8f0qfmUpUd+dMEf4SLiln8H2WTOOUq+RaTz6WDodTAtJXX8bl/hPj0XG+W LeTvXBXOk6VioeMDF8Wq622e8y/SxQ8SNTu3GXciT3hUbaCQCgrOWLf3ClBGQPw039 KgflKtfePxpiGs8+xj/pGF7CAyGz8HdN+mxX3+SE= From: David Gibson To: mdroth@linux.vnet.ibm.com, groug@kaod.org, bharata@linux.vnet.ibm.com, benh@kernel.crashing.org, danielhb@linux.vnet.ibm.com Date: Wed, 12 Jul 2017 23:11:38 +1000 Message-Id: <20170712131140.18146-4-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.9.4 In-Reply-To: <20170712131140.18146-1-david@gibson.dropbear.id.au> References: <20170712131140.18146-1-david@gibson.dropbear.id.au> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 103.22.144.67 Subject: [Qemu-devel] [PATCHv7 3/5] pseries: Enable HPT resizing for 2.10 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: aik@ozlabs.ru, lvivier@redhat.com, qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" We've now implemented a PAPR extensions which allows PAPR guests (i.e. "pseries" machine type) to resize their hash page table during runtime. However, that extension is only enabled if explicitly chosen on the command line. This patch enables it by default for spapr-2.10, but leaves it disabled (by default) for older machine types. Signed-off-by: David Gibson Reviewed-by: Laurent Vivier --- hw/ppc/spapr.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 1f19ab8..9336a66 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -3469,7 +3469,7 @@ static void spapr_machine_class_init(ObjectClass *oc,= void *data) smc->dr_lmb_enabled =3D true; smc->tcg_default_cpu =3D "POWER8"; mc->has_hotpluggable_cpus =3D true; - smc->resize_hpt_default =3D SPAPR_RESIZE_HPT_DISABLED; + smc->resize_hpt_default =3D SPAPR_RESIZE_HPT_ENABLED; fwc->get_dev_path =3D spapr_get_fw_dev_path; nc->nmi_monitor_handler =3D spapr_nmi; smc->phb_placement =3D spapr_phb_placement; @@ -3576,6 +3576,7 @@ static void spapr_machine_2_9_class_options(MachineCl= ass *mc) SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_9); mc->numa_auto_assign_ram =3D numa_legacy_auto_assign_ram; smc->pre_2_10_has_unused_icps =3D true; + smc->resize_hpt_default =3D SPAPR_RESIZE_HPT_DISABLED; } =20 DEFINE_SPAPR_MACHINE(2_9, "2.9", false); --=20 2.9.4