From: Gleb Natapov <gleb@redhat.com>
To: Kevin Wolf <kwolf@redhat.com>
Cc: qemu-devel qemu-devel <qemu-devel@nongnu.org>,
Alexander Graf <agraf@suse.de>,
Markus Armbruster <armbru@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v2] ahci: add -drive support
Date: Mon, 9 Jul 2012 13:05:11 +0300 [thread overview]
Message-ID: <20120709100511.GL15459@redhat.com> (raw)
In-Reply-To: <4FFAAC85.6040102@redhat.com>
On Mon, Jul 09, 2012 at 12:03:49PM +0200, Kevin Wolf wrote:
> Am 09.07.2012 12:02, schrieb Gleb Natapov:
> > On Mon, Jul 09, 2012 at 11:52:32AM +0200, Kevin Wolf wrote:
> >>> If -hda has the semantics of "create an IDE device", then no, we can't change it. It doesn't however. IIRC on -M pseries -hda creates SCSI devices. On s390 -hda creates virtio devices. So if on -M q35 -hda would create if=ahci, I don't see how that breaks the CLI.
> >>
> >> It doesn't per se, that is as long as you need to explicitly specify -M
> >> q35. But then changing the default machine from the existing pc to q35
> >> would break the command line.
> >>
> > Would break it how?
>
> A guest that has an IDE driver, but not an AHCI one can be started with
> 'qemu -hda foo.img' today. After changing the default to a q35 machine
> type which uses AHCI by default, this guest wouldn't boot any more with
> the same command line.
>
It is not suppose too. q35 is a totally different machine.
--
Gleb.
next prev parent reply other threads:[~2012-07-09 10:05 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1340714974-25489-1-git-send-email-agraf@suse.de>
2012-07-09 8:50 ` [Qemu-devel] [PATCH v2] ahci: add -drive support Markus Armbruster
2012-07-09 9:11 ` Kevin Wolf
2012-07-09 9:13 ` Alexander Graf
2012-07-09 9:27 ` Kevin Wolf
2012-07-09 9:36 ` Alexander Graf
2012-07-09 9:41 ` Gleb Natapov
2012-07-09 9:44 ` Alexander Graf
2012-07-09 9:46 ` Gleb Natapov
2012-07-09 9:52 ` Kevin Wolf
2012-07-09 10:02 ` Gleb Natapov
2012-07-09 10:03 ` Kevin Wolf
2012-07-09 10:05 ` Gleb Natapov [this message]
2012-07-09 10:14 ` Gerd Hoffmann
2012-07-09 11:05 ` Markus Armbruster
2012-07-09 11:06 ` Markus Armbruster
2012-07-09 11:08 ` Alexander Graf
2012-07-09 11:19 ` Markus Armbruster
2012-07-09 11:22 ` Alexander Graf
2012-07-11 22:33 ` Alexander Graf
2012-07-12 8:17 ` Markus Armbruster
2012-07-12 8:23 ` Alexander Graf
2012-07-12 11:09 ` Markus Armbruster
2012-07-12 11:28 ` Alexander Graf
2012-07-12 11:42 ` Markus Armbruster
2012-07-12 11:33 ` Paolo Bonzini
2012-07-12 8:42 ` Gerd Hoffmann
2012-07-12 10:58 ` Markus Armbruster
2012-07-12 11:50 ` Alexander Graf
2012-07-12 14:39 ` Markus Armbruster
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