From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([2001:4830:134:3::10]:37643)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <pbonzini@redhat.com>) id 1fXWCG-0008Bm-Vh
	for qemu-devel@nongnu.org; Mon, 25 Jun 2018 14:26:41 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <pbonzini@redhat.com>) id 1fXWCC-0005EN-2o
	for qemu-devel@nongnu.org; Mon, 25 Jun 2018 14:26:40 -0400
References: <20180613151942.GC19901@redhat.com>
	<87k1r24quk.fsf@dusky.pond.sub.org>
	<20180619171539.0adc90d6.cohuck@redhat.com>
	<d4e02083-c372-3ce5-d4a2-4809579fc8f2@redhat.com>
	<20180622181108.GY7451@localhost.localdomain>
	<c10c2ffa-7ee2-5106-07d1-528df939d6ad@redhat.com>
	<20180622193522.GI7451@localhost.localdomain>
	<743d495e-51cd-8c8e-293e-026b8dece74a@redhat.com>
	<87lgb3xsv8.fsf@dusky.pond.sub.org>
	<4292432f-5f26-6925-4c14-ad1370e36e5b@redhat.com>
	<20180625173056.GM7451@localhost.localdomain>
From: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <97504b42-9ebe-45c5-6ff3-b43102c8374a@redhat.com>
Date: Mon, 25 Jun 2018 20:26:28 +0200
MIME-Version: 1.0
In-Reply-To: <20180625173056.GM7451@localhost.localdomain>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Subject: Re: [Qemu-devel] [RFC PATCH 4/4] qemu-options: Do not show
 -enable-kvm and -enable-hax in the docs anymore
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel/>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Eduardo Habkost <ehabkost@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>, Thomas Huth <thuth@redhat.com>, zhang.zhanghailiang@huawei.com, Ben Warren <ben@skyportsystems.com>, qemu-trivial@nongnu.org, Cornelia Huck <cohuck@redhat.com>, qemu-devel@nongnu.org, Stefan Hajnoczi <stefanha@redhat.com>

On 25/06/2018 19:30, Eduardo Habkost wrote:
>>> Attentive distros could even replace the wrapper script by a link.
>> If they are okay with replacing the "KVM only" semantics with "KVM or
>> TCG", which I think is generally worse.
>
> If we can't get agreement on what's the right default for each
> QEMU binary, I think that's yet another reason to document that
> upstream QEMU won't guarantee ABI compatibility if -accel is
> omitted.

Before that we should ask what the benefit is in changing the default
for qemu-system-*.  Nobody is using it in practice to start QEMU with
KVM enabled...

Paolo

> If downstream distributions want to keep promising ABI
> compatibility, it will be up to them.