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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id B78AEC433F5 for ; Thu, 28 Apr 2022 12:34:17 +0000 (UTC) Received: from localhost ([::1]:42838 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nk3Lc-00032O-RW for qemu-devel@archiver.kernel.org; Thu, 28 Apr 2022 08:34:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60228) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nk3Ke-00013l-Dm for qemu-devel@nongnu.org; Thu, 28 Apr 2022 08:33:16 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:27179) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nk3Kb-0006J1-0Y for qemu-devel@nongnu.org; Thu, 28 Apr 2022 08:33:14 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1651149191; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references; bh=RhB/tRqJKoOZAuv6kO6wVb9MpnTmvSqPMCzOQqfwMn8=; b=bxf8DEteaCrBVMkML2xfQvnli+WD2zocGjbQqyjY4y8W4PsIs0eZ+lIz3EtCCs7/eY3ggQ xqv7Kf//N4YPPfw5aPDfKN8+HPla0EIOYhaaNNQhZ30f+Rz17JtSe9NfA5/bYJGObTSpOC wFyBeQF38Dwo6mhJysUpfvIiJcfcZ08= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-16-gVnH2nEhO72HkeS7WNTNIw-1; Thu, 28 Apr 2022 08:33:05 -0400 X-MC-Unique: gVnH2nEhO72HkeS7WNTNIw-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 5BC7086B8A3; Thu, 28 Apr 2022 12:33:05 +0000 (UTC) Received: from redhat.com (unknown [10.33.36.186]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 31A1240869CB; Thu, 28 Apr 2022 12:33:04 +0000 (UTC) Date: Thu, 28 Apr 2022 13:33:01 +0100 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: Jinpu Wang Subject: Re: RFC: sgx-epc is not listed in machine type help Message-ID: References: <20220428114850.GA20626@yangzhon-Virtual> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/2.1.5 (2021-12-30) X-Scanned-By: MIMEDefang 2.84 on 10.11.54.1 Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Cc: Yang Zhong , Paolo Bonzini , qemu-devel@nongnu.org, Yu Zhang Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, Apr 28, 2022 at 02:18:54PM +0200, Jinpu Wang wrote: > On Thu, Apr 28, 2022 at 2:05 PM Yang Zhong wrote: > > > > On Thu, Apr 28, 2022 at 01:59:33PM +0200, Jinpu Wang wrote: > > > Hi Yang, hi Paolo, > > > > > > We noticed sgx-epc machine type is not listed in the output of > > > "qemu-system-x86_64 -M ?", > snip > > > > > > > > > I think this would cause confusion to users, is there a reason behind this? > > > > > > > No specific machine type for SGX, and SGX is only supported in Qemu PC and Q35 platform. > Hi Yang, > > Thanks for your quick reply. Sorry for the stupid question. > The information I've got from intel or the help sample from > https://www.qemu.org/docs/master/system/i386/sgx.html, We need to > specify commands something like this to run SGX-EPC guest: > qemu-system-x86-64 -m 2G -nographic -enable-kvm -cpu > host,+sgx-provisionkey -object > memory-backend-epc,id=mem1,size=512M,prealloc=on -M > sgx-epc.0.memdev=mem1,sgx-epc.0.node=0 /tmp/volume-name.img That isn't an sgx-epc machine type. That is an (implicit) i440fx machine type, with an sgx-epc.0.memdev property being set. With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|