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=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 29B84C433DB for ; Mon, 1 Feb 2021 15:43:18 +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 8696764E46 for ; Mon, 1 Feb 2021 15:43:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8696764E46 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]:36634 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l6bMC-0005Rg-IC for qemu-devel@archiver.kernel.org; Mon, 01 Feb 2021 10:43:16 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:39986) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l6bFw-00069e-QA for qemu-devel@nongnu.org; Mon, 01 Feb 2021 10:36:48 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:36192) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1l6bFu-0001yQ-8N for qemu-devel@nongnu.org; Mon, 01 Feb 2021 10:36:48 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1612193804; 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=cQmf6Y9P+GDqVnu/dGTDDJ0xu42HmxVndw8BdoX6gO4=; b=M+ria2ajddbETghqHlslj9oB2aKQs5oY9LQIwUlk2T56bw/2Xq4l9rlUoP/09sPkvlsbQN Y3t09KIYG6fjT1sPFsTBqOBLAuzmaKRMWuf/GqeaIHpgHE6v97/D5Fp6RIduOzxUzYW2nN YJdujW9t0SKxlrzg8Oca9lGDy83IlHg= 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-34-8y3CTZISNzitbWheG2V-JA-1; Mon, 01 Feb 2021 10:36:41 -0500 X-MC-Unique: 8y3CTZISNzitbWheG2V-JA-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 801318049CA; Mon, 1 Feb 2021 15:36:40 +0000 (UTC) Received: from localhost.localdomain.com (ovpn-114-195.ams2.redhat.com [10.36.114.195]) by smtp.corp.redhat.com (Postfix) with ESMTP id 76C805D756; Mon, 1 Feb 2021 15:36:38 +0000 (UTC) From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH RFC 3/4] NOT FOR MERGE target/i386: use x86-64-abi1 CPU model as default on x86_64 Date: Mon, 1 Feb 2021 15:36:05 +0000 Message-Id: <20210201153606.4158076-4-berrange@redhat.com> In-Reply-To: <20210201153606.4158076-1-berrange@redhat.com> References: <20210201153606.4158076-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=berrange@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=63.128.21.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.351, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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: Florian Weimer , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Eduardo Habkost , "Michael S. Tsirkin" , Richard Henderson , Cleber Rosa , Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The only differences between x86-64-abi1 and qemu64 is that the former does not have the 'vme' or 'svm' flags. In practice I don't think we should make this change, because it doesn't especially add any value as-is. The only possible case is around 'svm' because KVM already masks that feature, but TCG allows it. Thus using x86-64-abi1 would mean that KVM and TCG expose a more consistent feature set. Also note that while libvirt can cope with default CPUs changing now, it can't with the default CPU being a model name that it does not already know about. Signed-off-by: Daniel P. Berrangé --- hw/i386/pc_piix.c | 3 +++ hw/i386/pc_q35.c | 3 +++ target/i386/cpu.h | 2 +- 3 files changed, 7 insertions(+), 1 deletion(-) diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index 6188c3e97e..c4c003599f 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -445,6 +445,9 @@ static void pc_i440fx_5_2_machine_options(MachineClass *m) m->is_default = false; compat_props_add(m->compat_props, hw_compat_5_2, hw_compat_5_2_len); compat_props_add(m->compat_props, pc_compat_5_2, pc_compat_5_2_len); +#ifdef TARGET_X86_64 + m->default_cpu_type = X86_CPU_TYPE_NAME("qemu64"); +#endif } DEFINE_I440FX_MACHINE(v5_2, "pc-i440fx-5.2", NULL, diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c index 0a212443aa..606ac4f1f4 100644 --- a/hw/i386/pc_q35.c +++ b/hw/i386/pc_q35.c @@ -361,6 +361,9 @@ static void pc_q35_5_2_machine_options(MachineClass *m) m->alias = NULL; compat_props_add(m->compat_props, hw_compat_5_2, hw_compat_5_2_len); compat_props_add(m->compat_props, pc_compat_5_2, pc_compat_5_2_len); +#ifdef TARGET_X86_64 + m->default_cpu_type = X86_CPU_TYPE_NAME("qemu64"); +#endif } DEFINE_Q35_MACHINE(v5_2, "pc-q35-5.2", NULL, diff --git a/target/i386/cpu.h b/target/i386/cpu.h index d23a5b340a..0a436b575f 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -1956,7 +1956,7 @@ uint64_t cpu_get_tsc(CPUX86State *env); #define CPU_RESOLVING_TYPE TYPE_X86_CPU #ifdef TARGET_X86_64 -#define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("qemu64") +#define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("x86-64-abi1") #else #define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("qemu32") #endif -- 2.29.2