From: Eduardo Habkost <ehabkost@redhat.com>
To: Paolo Bonzini <pbonzini@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>
Subject: Re: [Qemu-trivial] [Qemu-devel] [RFC PATCH 4/4] qemu-options: Do not show -enable-kvm and -enable-hax in the docs anymore
Date: Tue, 26 Jun 2018 09:29:08 -0300 [thread overview]
Message-ID: <20180626122908.GQ7451@localhost.localdomain> (raw)
In-Reply-To: <a931e759-879b-6f6b-3524-4b5a78fed323@redhat.com>
On Tue, Jun 26, 2018 at 07:57:18AM +0200, Paolo Bonzini wrote:
> On 25/06/2018 21:51, Eduardo Habkost wrote:
> > In either case, I'm not arguing (yet) for changing the default
> > upstream. I'm just arguing for upstream QEMU to not make any
> > promises about the default.
>
> It would be a guest ABI breakage for TCG guests, so it would only apply
> to new machine types. I don't think it's worth the complication.
That's exactly the point: I want to stop promising a stable guest
ABI when the accelerator is omitted, because I see no benefit in
wasting energy on this.
(I don't think we ever kept the guest ABI correctly with TCG, by
the way.)
>
> BTW, another thing that needs documenting is ABI promises for HAX and
> WHPX. [...]
Absolutely.
--
Eduardo
WARNING: multiple messages have this Message-ID (diff)
From: Eduardo Habkost <ehabkost@redhat.com>
To: Paolo Bonzini <pbonzini@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>
Subject: Re: [Qemu-devel] [RFC PATCH 4/4] qemu-options: Do not show -enable-kvm and -enable-hax in the docs anymore
Date: Tue, 26 Jun 2018 09:29:08 -0300 [thread overview]
Message-ID: <20180626122908.GQ7451@localhost.localdomain> (raw)
In-Reply-To: <a931e759-879b-6f6b-3524-4b5a78fed323@redhat.com>
On Tue, Jun 26, 2018 at 07:57:18AM +0200, Paolo Bonzini wrote:
> On 25/06/2018 21:51, Eduardo Habkost wrote:
> > In either case, I'm not arguing (yet) for changing the default
> > upstream. I'm just arguing for upstream QEMU to not make any
> > promises about the default.
>
> It would be a guest ABI breakage for TCG guests, so it would only apply
> to new machine types. I don't think it's worth the complication.
That's exactly the point: I want to stop promising a stable guest
ABI when the accelerator is omitted, because I see no benefit in
wasting energy on this.
(I don't think we ever kept the guest ABI correctly with TCG, by
the way.)
>
> BTW, another thing that needs documenting is ABI promises for HAX and
> WHPX. [...]
Absolutely.
--
Eduardo
next prev parent reply other threads:[~2018-06-26 12:29 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-13 5:05 [Qemu-trivial] [PATCH 0/4] Clean up accelerator options Thomas Huth
2018-06-13 5:05 ` [Qemu-devel] " Thomas Huth
2018-06-13 5:05 ` [Qemu-trivial] [PATCH 1/4] Replace '-machine accel=xyz' with '-accel xyz' Thomas Huth
2018-06-13 5:05 ` [Qemu-devel] " Thomas Huth
2018-06-13 12:20 ` [Qemu-trivial] " Eric Blake
2018-06-13 12:20 ` Eric Blake
2018-06-13 12:48 ` [Qemu-trivial] " Paolo Bonzini
2018-06-13 12:48 ` [Qemu-devel] " Paolo Bonzini
2018-06-13 12:53 ` [Qemu-trivial] " Thomas Huth
2018-06-13 12:53 ` [Qemu-devel] " Thomas Huth
2018-06-13 13:54 ` [Qemu-trivial] " Paolo Bonzini
2018-06-13 13:54 ` [Qemu-devel] " Paolo Bonzini
2018-06-13 14:12 ` [Qemu-trivial] " Thomas Huth
2018-06-13 14:12 ` Thomas Huth
2018-06-13 16:10 ` [Qemu-trivial] " Eduardo Habkost
2018-06-13 16:10 ` [Qemu-devel] " Eduardo Habkost
2018-06-13 13:38 ` [Qemu-trivial] " Stefan Hajnoczi
2018-06-13 13:38 ` [Qemu-devel] " Stefan Hajnoczi
2018-06-13 5:05 ` [Qemu-trivial] [PATCH 2/4] Replace '-enable-kvm' with '-accel kvm' in docs and help texts Thomas Huth
2018-06-13 5:05 ` [Qemu-devel] " Thomas Huth
2018-06-13 12:51 ` [Qemu-trivial] " Paolo Bonzini
2018-06-13 12:51 ` [Qemu-devel] " Paolo Bonzini
2018-06-13 13:38 ` [Qemu-trivial] " Stefan Hajnoczi
2018-06-13 13:38 ` [Qemu-devel] " Stefan Hajnoczi
2018-06-13 5:05 ` [Qemu-trivial] [PATCH 3/4] qemu-options: Improve the documentation of '-accel' and '-machine accel=...' Thomas Huth
2018-06-13 5:05 ` [Qemu-devel] " Thomas Huth
2018-06-13 13:38 ` [Qemu-trivial] " Stefan Hajnoczi
2018-06-13 13:38 ` [Qemu-devel] " Stefan Hajnoczi
2018-06-13 5:05 ` [Qemu-trivial] [RFC PATCH 4/4] qemu-options: Do not show -enable-kvm and -enable-hax in the docs anymore Thomas Huth
2018-06-13 5:05 ` [Qemu-devel] " Thomas Huth
2018-06-13 12:51 ` [Qemu-trivial] " Paolo Bonzini
2018-06-13 12:51 ` [Qemu-devel] " Paolo Bonzini
2018-06-13 13:38 ` [Qemu-trivial] " Stefan Hajnoczi
2018-06-13 13:38 ` [Qemu-devel] " Stefan Hajnoczi
2018-06-13 13:44 ` [Qemu-trivial] " Daniel P. Berrangé
2018-06-13 13:44 ` Daniel P. Berrangé
2018-06-13 15:11 ` [Qemu-trivial] " Thomas Huth
2018-06-13 15:11 ` Thomas Huth
2018-06-13 15:19 ` [Qemu-trivial] " Daniel P. Berrangé
2018-06-13 15:19 ` Daniel P. Berrangé
2018-06-13 15:44 ` [Qemu-trivial] " Thomas Huth
2018-06-13 15:44 ` Thomas Huth
2018-06-13 16:02 ` [Qemu-trivial] " Markus Armbruster
2018-06-13 16:02 ` Markus Armbruster
2018-06-19 15:15 ` [Qemu-trivial] " Cornelia Huck
2018-06-19 15:15 ` Cornelia Huck
2018-06-19 16:16 ` [Qemu-trivial] " Paolo Bonzini
2018-06-19 16:16 ` Paolo Bonzini
2018-06-22 18:11 ` [Qemu-trivial] " Eduardo Habkost
2018-06-22 18:11 ` Eduardo Habkost
2018-06-22 19:19 ` [Qemu-trivial] " Thomas Huth
2018-06-22 19:19 ` Thomas Huth
2018-06-22 19:35 ` [Qemu-trivial] " Eduardo Habkost
2018-06-22 19:35 ` Eduardo Habkost
2018-06-22 21:22 ` [Qemu-trivial] " Paolo Bonzini
2018-06-22 21:22 ` Paolo Bonzini
2018-06-25 6:50 ` [Qemu-trivial] " Markus Armbruster
2018-06-25 6:50 ` Markus Armbruster
2018-06-25 10:28 ` [Qemu-trivial] " Paolo Bonzini
2018-06-25 10:28 ` Paolo Bonzini
2018-06-25 17:30 ` [Qemu-trivial] " Eduardo Habkost
2018-06-25 17:30 ` Eduardo Habkost
2018-06-25 18:26 ` [Qemu-trivial] " Paolo Bonzini
2018-06-25 18:26 ` Paolo Bonzini
2018-06-25 19:51 ` [Qemu-trivial] " Eduardo Habkost
2018-06-25 19:51 ` Eduardo Habkost
2018-06-26 5:57 ` [Qemu-trivial] " Paolo Bonzini
2018-06-26 5:57 ` Paolo Bonzini
2018-06-26 12:29 ` Eduardo Habkost [this message]
2018-06-26 12:29 ` Eduardo Habkost
2018-06-26 13:05 ` [Qemu-trivial] " Paolo Bonzini
2018-06-26 13:05 ` Paolo Bonzini
2018-06-26 16:06 ` [Qemu-trivial] " Eduardo Habkost
2018-06-26 16:06 ` Eduardo Habkost
2018-06-26 16:10 ` [Qemu-trivial] " Daniel P. Berrangé
2018-06-26 16:10 ` Daniel P. Berrangé
2018-06-27 8:39 ` [Qemu-trivial] " Paolo Bonzini
2018-06-27 8:39 ` Paolo Bonzini
2018-06-27 14:05 ` [Qemu-trivial] " Eduardo Habkost
2018-06-27 14:05 ` Eduardo Habkost
2018-06-26 4:40 ` [Qemu-trivial] " Thomas Huth
2018-06-26 4:40 ` Thomas Huth
2018-06-26 7:50 ` [Qemu-trivial] " Cornelia Huck
2018-06-26 7:50 ` Cornelia Huck
2018-06-26 12:56 ` [Qemu-trivial] " Eduardo Habkost
2018-06-26 12:56 ` Eduardo Habkost
2018-06-26 16:43 ` [Qemu-trivial] " Markus Armbruster
2018-06-26 16:43 ` Markus Armbruster
2018-06-27 8:49 ` [Qemu-trivial] " Paolo Bonzini
2018-06-27 8:49 ` Paolo Bonzini
2018-06-13 13:39 ` [Qemu-trivial] [PATCH 0/4] Clean up accelerator options Stefan Hajnoczi
2018-06-13 13:39 ` [Qemu-devel] " Stefan Hajnoczi
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