From: Eduardo Habkost <ehabkost@redhat.com>
To: Thomas Huth <thuth@redhat.com>
Cc: libvir-list@redhat.com, QEMU <qemu-devel@nongnu.org>,
"Marc-André Lureau" <marcandre.lureau@gmail.com>,
"Stefan Hajnoczi" <stefanha@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Igor Mammedov" <imammedo@redhat.com>,
"Richard Henderson" <rth@twiddle.net>
Subject: Re: [PATCH 2/2] Add -mem-shared option
Date: Tue, 3 Dec 2019 18:34:33 -0300 [thread overview]
Message-ID: <20191203213433.GR14595@habkost.net> (raw)
In-Reply-To: <1ff4cc6a-0ec8-96ff-1e39-e682429852e4@redhat.com>
On Tue, Dec 03, 2019 at 09:56:15AM +0100, Thomas Huth wrote:
> On 02/12/2019 22.00, Eduardo Habkost wrote:
> > On Mon, Dec 02, 2019 at 08:39:48AM +0100, Igor Mammedov wrote:
> >> On Fri, 29 Nov 2019 18:46:12 +0100
> >> Paolo Bonzini <pbonzini@redhat.com> wrote:
> >>
> >>> On 29/11/19 13:16, Igor Mammedov wrote:
> >>>> As for "-m", I'd make it just an alias that translates
> >>>> -m/mem-path/mem-prealloc
> >>>
> >>> I think we should just deprecate -mem-path/-mem-prealloc in 5.0. CCing
> >>> Thomas as mister deprecation. :)
> >>
> >> I'll add that to my series
> >
> > Considering that the plan is to eventually reimplement those
> > options as syntactic sugar for memory backend options (hopefully
> > in less than 2 QEMU releases), what's the point of deprecating
> > them?
>
> Well, it depends on the "classification" [1] of the parameter...
>
> Let's ask: What's the main purpose of the option?
>
> Is it easier to use than the "full" option, and thus likely to be used
> by a lot of people who run QEMU directly from the CLI? In that case it
> should stay as "convenience option" and not be deprecated.
>
> Or is the option merely there to give the upper layers like libvirt or
> some few users and their scripts some more grace period to adapt their
> code, but we all agree that the options are rather ugly and should
> finally go away? Then it's rather a "legacy option" and the deprecation
> process is the right way to go. Our QEMU interface is still way to
> overcrowded, we should try to keep it as clean as possible.
That's a good way to describe the questions involved. To me they
are clearly convenience options.
We could still replace them with new (more consistent and less
ugly) convenience options, though.
>
> Thomas
>
>
> [1] Using the terms from:
> https://www.youtube.com/watch?v=Oscjpkns7tM&t=8m
--
Eduardo
next prev parent reply other threads:[~2019-12-03 21:57 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-28 14:15 [PATCH 0/2] RFC: add -mem-shared option Marc-André Lureau
2019-11-28 14:15 ` [PATCH 1/2] memfd: add qemu_memfd_open() Marc-André Lureau
2019-11-28 14:15 ` [PATCH 2/2] Add -mem-shared option Marc-André Lureau
2019-11-28 16:14 ` Eduardo Habkost
2019-11-28 16:28 ` Igor Mammedov
2019-11-28 20:31 ` Marc-André Lureau
2019-11-29 10:07 ` Igor Mammedov
2019-11-29 10:11 ` Paolo Bonzini
2019-11-29 12:01 ` Markus Armbruster
2019-11-29 20:31 ` Eduardo Habkost
2019-11-29 12:16 ` Igor Mammedov
2019-11-29 17:46 ` Paolo Bonzini
2019-12-02 7:39 ` Igor Mammedov
2019-12-02 21:00 ` Eduardo Habkost
2019-12-03 8:56 ` Thomas Huth
2019-12-03 14:43 ` Igor Mammedov
2019-12-09 20:58 ` Eduardo Habkost
2019-12-10 10:34 ` Markus Armbruster
2019-12-10 13:09 ` Igor Mammedov
2019-12-03 21:34 ` Eduardo Habkost [this message]
2019-11-28 16:10 ` [PATCH 0/2] RFC: add " Eduardo Habkost
2019-11-29 9:18 ` Igor Mammedov
2019-11-29 9:31 ` Paolo Bonzini
2019-11-29 10:23 ` Igor Mammedov
2019-11-29 11:21 ` Paolo Bonzini
2019-11-29 20:21 ` Eduardo Habkost
2019-12-01 15:40 ` Marc-André Lureau
2019-12-01 18:03 ` Paolo Bonzini
2019-11-28 16:59 ` Dr. David Alan Gilbert
2019-11-29 9:23 ` Igor Mammedov
2019-12-13 11:39 ` Stefan Hajnoczi
2019-12-13 13:12 ` Igor Mammedov
2019-11-29 4:37 ` no-reply
2019-11-29 5:34 ` no-reply
2019-11-29 7:02 ` Gerd Hoffmann
2019-11-29 7:30 ` Marc-André Lureau
2019-11-29 9:27 ` Daniel P. Berrangé
2019-11-29 9:31 ` Marc-André Lureau
2019-11-29 9:42 ` Daniel P. Berrangé
2019-11-29 9:45 ` Marc-André Lureau
2019-11-29 11:44 ` Gerd Hoffmann
2019-11-29 9:33 ` Paolo Bonzini
2019-11-29 9:39 ` Daniel P. Berrangé
2019-11-29 9:52 ` Paolo Bonzini
2019-11-29 10:13 ` Igor Mammedov
2019-11-29 11:20 ` Paolo Bonzini
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