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Re: [Qemu-devel] qemu-kvm: remove "boot=on|off" drive parameter compatib
From: |
Jan Kiszka |
Subject: |
Re: [Qemu-devel] qemu-kvm: remove "boot=on|off" drive parameter compatibility |
Date: |
Mon, 01 Oct 2012 15:26:05 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
On 2012-10-01 15:19, Anthony Liguori wrote:
> Jan Kiszka <address@hidden> writes:
>
>> On 2012-10-01 11:31, Marcelo Tosatti wrote:
>>
>> It's not just about default configs. We need to validate if the
>> migration formats are truly compatible (qemu-kvm -> QEMU, the other way
>> around definitely not). For the command line switches, we could provide
>> a wrapper script that translates them into upstream format or simply
>> ignores them. That should be harmless to carry upstream.
>
> qemu-kvm has:
>
> -no-kvm
> -no-kvm-irqchip
> -no-kvm-pit
> -no-kvm-pit-reinjection
> -tdf <- does nothing
>
> There are replacements for all of the above. If we need to add them to
> qemu.git, it's not big deal to add them.
But I don't think we should add them to the source code. This can
perfectly be handled my a (disposable) script layer on top of
qemu-system-x86_64 - the namespace (qemu-kvm in most cases) is also free.
>
> -drive ...,boot= <- this is ignored
>
> cpu_set command for CPU hotplug which is known broken in qemu-kvm.
Right, so nothing is lost when migrating to QEMU.
>
> testdev which is nice but only used for development
>
> Default nic is rtl8139 vs. e1000.
>
> Some logic to move change the default VGA ram size to 16mb for pc-1.2
> (QEMU uses 16mb by default now too).
Also nicely manageable in a wrapper.
>
> I think at this point, none of this matters but I added the various
> distro maintainers to the thread.
>
> I think it's time for the distros to drop qemu-kvm and just ship
> qemu.git.
+1
Jan
> Is there anything else that needs to happen to make that
> switch?
>
> Regards,
>
> Anthony Liguori
--
Siemens AG, Corporate Technology, CT RTC ITP SDP-DE
Corporate Competence Center Embedded Linux
- Re: [Qemu-devel] qemu-kvm: remove "boot=on|off" drive parameter compatibility, Anthony Liguori, 2012/10/01
- Re: [Qemu-devel] qemu-kvm: remove "boot=on|off" drive parameter compatibility,
Jan Kiszka <=
- Re: [Qemu-devel] qemu-kvm: remove "boot=on|off" drive parameter compatibility, Gleb Natapov, 2012/10/03
- Re: [Qemu-devel] qemu-kvm: remove "boot=on|off" drive parameter compatibility, Lucas Meneghel Rodrigues, 2012/10/03
- Re: [Qemu-devel] qemu-kvm: remove "boot=on|off" drive parameter compatibility, Paolo Bonzini, 2012/10/03
- Re: [Qemu-devel] qemu-kvm: remove "boot=on|off" drive parameter compatibility, Gleb Natapov, 2012/10/03
- Re: [Qemu-devel] qemu-kvm: remove "boot=on|off" drive parameter compatibility, Jan Kiszka, 2012/10/04
- Re: [Qemu-devel] qemu-kvm: remove "boot=on|off" drive parameter compatibility, Lucas Meneghel Rodrigues, 2012/10/04
- Re: [Qemu-devel] qemu-kvm: remove "boot=on|off" drive parameter compatibility, Jan Kiszka, 2012/10/04
- Re: [Qemu-devel] qemu-kvm: remove "boot=on|off" drive parameter compatibility, Lucas Meneghel Rodrigues, 2012/10/04