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[170.10.133.124]) by mx.google.com with ESMTPS id t17-20020ab02691000000b0068b9e00bcc4si4945782uao.192.2023.03.02.10.09.19 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Mar 2023 10:09:19 -0800 (PST) Received-SPF: pass (google.com: domain of berrange@redhat.com designates 170.10.133.124 as permitted sender) client-ip=170.10.133.124; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=KGiWPmde; spf=pass (google.com: domain of berrange@redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=berrange@redhat.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1677780559; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=HiVBqMnf1rJ1eG3Qv6m/ZxXVASAu56FD87PLiyS+zOU=; b=KGiWPmdeoB5dxc+UxmOAK1oxI3cb4sOwu24gPNZKL+19lqu3Q4bcksZet4H8XjLYXzCvS1 uvMJ8qrnJu/dtMJ4rfohwA11IpvUMyFn+DXd/SkOpJgLmOWLEafavOaaep7pWpQzdP2BhT 3uSYSTTcZGOhxIhfrgjPVFMBPJdGPCs= 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-320-oGMHrVdGOk-q1eVLl11_hw-1; Thu, 02 Mar 2023 13:09:17 -0500 X-MC-Unique: oGMHrVdGOk-q1eVLl11_hw-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 6FA1A877CAA; Thu, 2 Mar 2023 18:09:17 +0000 (UTC) Received: from redhat.com (unknown [10.33.36.46]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 4C7E02026D4B; Thu, 2 Mar 2023 18:09:11 +0000 (UTC) Date: Thu, 2 Mar 2023 18:09:03 +0000 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: Thomas Huth Cc: qemu-devel@nongnu.org, Peter Maydell , Paolo Bonzini , Markus Armbruster , Alex =?utf-8?Q?Benn=C3=A9e?= , qemu-arm@nongnu.org, Maxim Levitsky , libvir-list@redhat.com, Richard Henderson , xen-devel@lists.xenproject.org, Reinoud Zandijk Subject: Re: [PATCH v2 5/6] docs/about/deprecated: Deprecate 32-bit arm hosts Message-ID: Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= References: <20230302163106.465559-1-thuth@redhat.com> <20230302163106.465559-6-thuth@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20230302163106.465559-6-thuth@redhat.com> User-Agent: Mutt/2.2.9 (2022-11-12) X-Scanned-By: MIMEDefang 3.1 on 10.11.54.4 X-TUID: YWoZo45gmMMY On Thu, Mar 02, 2023 at 05:31:05PM +0100, Thomas Huth wrote: > For running QEMU in system emulation mode, the user needs a rather > strong host system, i.e. not only an embedded low-frequency controller. > All recent beefy arm host machines should support 64-bit now, it's > unlikely that anybody is still seriously using QEMU on a 32-bit arm > CPU, so we deprecate the 32-bit arm hosts here to finally save use > some time and precious CI minutes. > > Signed-off-by: Thomas Huth > --- > docs/about/deprecated.rst | 9 +++++++++ > 1 file changed, 9 insertions(+) Reviewed-by: Daniel P. Berrangé > diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst > index 21ce70b5c9..c7113a7510 100644 > --- a/docs/about/deprecated.rst > +++ b/docs/about/deprecated.rst > @@ -229,6 +229,15 @@ discontinue it. Since all recent x86 hardware from the past >10 years > is capable of the 64-bit x86 extensions, a corresponding 64-bit OS > should be used instead. > > +System emulation on 32-bit arm hosts (since 8.0) > +'''''''''''''''''''''''''''''''''''''''''''''''' > + > +Since QEMU needs a strong host machine for running full system emulation, and > +all recent powerful arm hosts support 64-bit, the QEMU project deprecates the > +support for running any system emulation on 32-bit arm hosts in general. Use > +64-bit arm hosts for system emulation instead. (Note: "user" mode emulation > +continuous to be supported on 32-bit arm hosts, too) s/continuous/continues/ s/,too/, as well as command line tools like qemu-img, qemu-nbd, etc/ > + > > QEMU API (QAPI) events > ---------------------- > -- > 2.31.1 > 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 :|