From: "Andreas Färber" <afaerber@suse.de>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: mimu@linux.vnet.ibm.com, qemu-devel@nongnu.org,
Alexander Graf <agraf@suse.de>,
borntraeger@de.ibm.com, Igor Mammedov <imammedo@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Jiri Denemark <jdenemar@redhat.com>,
rth@twiddle.net, Eduardo Habkost <ehabkost@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 0/2] target-i386: "custom" CPU model + script to dump existing CPU models
Date: Wed, 24 Jun 2015 16:35:13 +0200 [thread overview]
Message-ID: <558AC021.1080403@suse.de> (raw)
In-Reply-To: <20150624161820-mutt-send-email-mst@redhat.com>
Am 24.06.2015 um 16:19 schrieb Michael S. Tsirkin:
> On Wed, Jun 24, 2015 at 11:16:51AM -0300, Eduardo Habkost wrote:
>>> IMHO -M pc is not supposed to mean "can break at any time".
>>
>> It means "it may have new host-side requirements and may become runnable
>> in your host (or require additional command-line flags to run) at any time".
>
> That would be pretty bad. I don't think we ever had such cases in practice.
Why is that bad or unexpected? If you install new software, it may have
new dependencies. QEMU would be no different from other software there.
Yesterday Eduardo said it was about having a fixed version installed and
therein switching from a legacy machine to a newer machine. In that case
the dependencies existed ever since installation but were not
immediately visible to the end user due to our stability guarantees.
Andreas
--
SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Felix Imendörffer, Jane Smithard, Dilip Upmanyu, Graham Norton; HRB
21284 (AG Nürnberg)
next prev parent reply other threads:[~2015-06-24 14:49 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-08 19:07 [Qemu-devel] [PATCH 0/2] target-i386: "custom" CPU model + script to dump existing CPU models Eduardo Habkost
2015-06-08 19:07 ` [Qemu-devel] [PATCH 1/2] target-i386: Introduce "-cpu custom" Eduardo Habkost
2015-06-08 19:07 ` [Qemu-devel] [PATCH 2/2] scripts: x86-cpu-model-dump script Eduardo Habkost
2015-06-08 20:18 ` [Qemu-devel] [PATCH 0/2] target-i386: "custom" CPU model + script to dump existing CPU models Jiri Denemark
2015-06-09 8:56 ` Daniel P. Berrange
2015-06-09 13:16 ` Eduardo Habkost
2015-06-23 12:32 ` Andreas Färber
2015-06-23 15:08 ` Eduardo Habkost
2015-06-23 15:32 ` Michael S. Tsirkin
2015-06-23 15:58 ` Eduardo Habkost
2015-06-23 16:15 ` Andreas Färber
2015-06-23 16:25 ` Daniel P. Berrange
2015-06-23 16:33 ` Michael S. Tsirkin
2015-06-23 16:38 ` Eduardo Habkost
2015-06-23 16:44 ` Andreas Färber
2015-06-23 17:08 ` Eduardo Habkost
2015-06-23 17:18 ` Andreas Färber
2015-06-23 17:27 ` Daniel P. Berrange
2015-06-23 17:41 ` Andreas Färber
2015-06-23 17:45 ` Eduardo Habkost
2015-06-23 17:58 ` Andreas Färber
2015-06-23 18:05 ` Daniel P. Berrange
2015-06-23 18:11 ` Eduardo Habkost
2015-06-23 17:55 ` Daniel P. Berrange
2015-06-23 17:39 ` Eduardo Habkost
2015-06-23 18:35 ` Andreas Färber
2015-06-23 19:25 ` Eduardo Habkost
2015-06-23 19:41 ` Andreas Färber
2015-06-23 19:53 ` Eduardo Habkost
2015-06-23 20:26 ` Eduardo Habkost
2015-06-23 21:38 ` Michael S. Tsirkin
2015-06-23 16:42 ` Daniel P. Berrange
2015-06-23 16:47 ` Andreas Färber
2015-06-23 17:11 ` Eduardo Habkost
2015-06-23 21:34 ` Michael S. Tsirkin
2015-06-24 14:24 ` Eduardo Habkost
2015-06-24 14:37 ` Michael S. Tsirkin
2015-06-24 15:44 ` [Qemu-devel] Not introducing new host-side requirements on new machine-type versions (was Re: [PATCH 0/2] target-i386: "custom" CPU model + script to dump existing CPU models) Eduardo Habkost
2015-06-24 15:58 ` Andreas Färber
2015-06-24 16:08 ` Eduardo Habkost
2015-06-24 16:15 ` Andreas Färber
2015-06-24 15:59 ` Paolo Bonzini
2015-06-23 17:13 ` [Qemu-devel] [PATCH 0/2] target-i386: "custom" CPU model + script to dump existing CPU models Daniel P. Berrange
2015-06-23 17:29 ` Andreas Färber
2015-06-23 17:42 ` Eduardo Habkost
2015-06-23 17:55 ` Andreas Färber
2015-06-23 17:58 ` Daniel P. Berrange
2015-06-23 21:28 ` Michael S. Tsirkin
2015-06-24 14:18 ` Eduardo Habkost
2015-06-24 14:24 ` Michael S. Tsirkin
2015-06-23 21:26 ` Michael S. Tsirkin
2015-06-23 21:23 ` Michael S. Tsirkin
2015-06-24 8:52 ` Daniel P. Berrange
2015-06-24 10:31 ` Michael S. Tsirkin
2015-06-24 14:16 ` Eduardo Habkost
2015-06-24 14:19 ` Michael S. Tsirkin
2015-06-24 14:35 ` Andreas Färber [this message]
2015-06-24 14:57 ` Michael S. Tsirkin
2015-06-24 15:43 ` Andreas Färber
2015-06-24 14:38 ` Paolo Bonzini
2015-06-24 14:54 ` Peter Maydell
2015-06-24 14:56 ` Paolo Bonzini
2015-06-24 15:58 ` Eduardo Habkost
2015-06-24 16:00 ` Paolo Bonzini
2015-06-23 16:40 ` Andreas Färber
2015-06-23 16:53 ` Daniel P. Berrange
2015-06-23 17:10 ` Andreas Färber
2015-06-23 17:24 ` Eduardo Habkost
2015-06-23 17:31 ` Daniel P. Berrange
2015-06-23 16:32 ` Eduardo Habkost
2015-06-23 17:01 ` Andreas Färber
2015-06-23 15:51 ` Daniel P. Berrange
2015-06-23 15:56 ` Michael S. Tsirkin
2015-06-23 16:00 ` Daniel P. Berrange
2015-06-23 16:30 ` Michael S. Tsirkin
2015-06-24 9:20 ` Jiri Denemark
2015-06-24 10:21 ` Michael S. Tsirkin
2015-06-24 10:31 ` Daniel P. Berrange
2015-06-24 10:40 ` Michael S. Tsirkin
2015-06-24 10:32 ` Paolo Bonzini
2015-06-16 17:40 ` Eduardo Habkost
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