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Date: Fri, 30 Sep 2016 10:08:54 +0200
From: Jiri Denemark <jdenemar@redhat.com>
Message-ID: <20160930080854.GM952385@orkuz.home>
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Subject: Re: [Qemu-devel] [PATCH v4 01/11] tests: Add test case for x86
 feature parsing compatibility
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To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>, qemu-devel@nongnu.org, dahi@linux.vnet.ibm.com, Igor Mammedov <imammedo@redhat.com>, Markus Armbruster <armbru@redhat.com>, Richard Henderson <rth@twiddle.net>, libvir-list@redhat.com

On Fri, Sep 30, 2016 at 09:55:33 +0200, Paolo Bonzini wrote:
> 
> 
> On 29/09/2016 23:14, Eduardo Habkost wrote:
> > +     * "-foo" overrides "+foo"
> > +     * "[+-]foo" overrides "foo=..."
> 
> Is this something that people are actually using?  Can we detect it and
> deprecate it in 2.8, and drop it in 2.9?

Libvirt uses -cpu Model,+foo,-bar style, but we do not mix mix -foo and
+foo, or even [+-]foo and foo= if this is what you asked.

Jirka