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From: Akihiko Odaki <akihiko.odaki@daynix.com>
To: Yuri Benditovich <yuri.benditovich@daynix.com>
Cc: "Jason Wang" <jasowang@redhat.com>,
	"Dmitry Fleytman" <dmitry.fleytman@gmail.com>,
	"Sriram Yagnaraman" <sriram.yagnaraman@ericsson.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	"Luigi Rizzo" <rizzo@iet.unipi.it>,
	"Giuseppe Lettieri" <g.lettieri@iet.unipi.it>,
	"Vincenzo Maffione" <v.maffione@gmail.com>,
	"Andrew Melnychenko" <andrew@daynix.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Daniel P. Berrangé" <berrange@redhat.com>,
	"Eduardo Habkost" <eduardo@habkost.net>,
	qemu-devel@nongnu.org
Subject: Re: [PATCH 2/3] virtio-net: Convert feature properties to OnOffAuto
Date: Wed, 1 May 2024 16:06:37 +0900	[thread overview]
Message-ID: <3c0aef43-2460-4a32-90ff-295ca3558449@daynix.com> (raw)
In-Reply-To: <CAOEp5OcvLRvCVsGcC=8Y-P1tzJ4Tn+21Y6rJe_2ZVK-cDzePxw@mail.gmail.com>

On 2024/05/01 0:02, Yuri Benditovich wrote:
> Question:
> How will libvirt (as an example) work with this change. In the
> existing semantic of libvirt profile the "on" means "on if possible"
> and using existing profile after qemu update will still use "on" with
> meaning "force"? > Typically this is solved by machine type - if libvirt uses
> 'machine='pc-q35-8.1'' this will be backward-compatible.
> How will this change be accepted?

The reasoning here is that this patch only changes the configuration 
validation and, once the validation passes, QEMU can load the state of a 
machine created with an old version of QEMU.

It is still a good idea to add a compatibility property. I'll do so in 
the next version.


  reply	other threads:[~2024-05-01  7:07 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-28  7:21 [PATCH 0/3] virtio-net: Convert feature properties to OnOffAuto Akihiko Odaki
2024-04-28  7:21 ` [PATCH 1/3] qdev-properties: Add DEFINE_PROP_ON_OFF_AUTO_BIT64() Akihiko Odaki
2024-04-30 14:41   ` Yuri Benditovich
2024-05-01  6:36     ` Akihiko Odaki
2024-04-28  7:21 ` [PATCH 2/3] virtio-net: Convert feature properties to OnOffAuto Akihiko Odaki
2024-04-30 15:02   ` Yuri Benditovich
2024-05-01  7:06     ` Akihiko Odaki [this message]
2024-04-28  7:21 ` [PATCH 3/3] virtio-net: Report RSS warning at device realization Akihiko Odaki
2024-04-29  7:05 ` [PATCH 0/3] virtio-net: Convert feature properties to OnOffAuto Michael S. Tsirkin
2024-05-01  7:20   ` Akihiko Odaki
2024-05-06  3:48     ` Jason Wang

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