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Re: [Qemu-devel] change x86 default machine type to Q35?
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [Qemu-devel] change x86 default machine type to Q35? |
Date: |
Thu, 6 Jul 2017 12:13:06 +0100 |
User-agent: |
Mutt/1.8.3 (2017-05-23) |
* Daniel P. Berrange (address@hidden) wrote:
> On Thu, Jul 06, 2017 at 01:00:53PM +0200, Thomas Huth wrote:
> > On 06.07.2017 12:49, Daniel P. Berrange wrote:
> > [...]
> > > This avoids the user having problems with guest ABI silently changing
> > > behind their back, or migration suddenly failing to load vm state,
> >
> > For proper migration, you've got to specify the right versioned machine
> > type anyway, so that should not be an issue here.
>
> That's only true if you have mis-matched QEMU releases on each host.
> If you know you have the same QEMU release everywhere, there's no
> need for versioned machine types. Though obviously we'd still recommend
> people us versioned machine type, its not unreasonable that some people
> will not
We have got protection against machine type screwups; e.g going from -M
pc to -M q35 we get:
qemu-system-x86_64: Machine type received is 'pc-i440fx-2.9' and local is
'pc-q35-2.9'
Dave
> Regards,
> Daniel
> --
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>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK
- Re: [Qemu-devel] change x86 default machine type to Q35?, (continued)
- Re: [Qemu-devel] change x86 default machine type to Q35?, Laszlo Ersek, 2017/07/05
- Re: [Qemu-devel] change x86 default machine type to Q35?, Daniel P. Berrange, 2017/07/05
- Re: [Qemu-devel] change x86 default machine type to Q35?, Fam Zheng, 2017/07/05
- Re: [Qemu-devel] change x86 default machine type to Q35?, Thomas Huth, 2017/07/05
- Re: [Qemu-devel] change x86 default machine type to Q35?, Fam Zheng, 2017/07/05
- Re: [Qemu-devel] change x86 default machine type to Q35?, Daniel P. Berrange, 2017/07/06
- Re: [Qemu-devel] change x86 default machine type to Q35?, Peter Maydell, 2017/07/06
- Re: [Qemu-devel] change x86 default machine type to Q35?, Thomas Huth, 2017/07/06
- Re: [Qemu-devel] change x86 default machine type to Q35?, Daniel P. Berrange, 2017/07/06
- Re: [Qemu-devel] change x86 default machine type to Q35?, Thomas Huth, 2017/07/06
- Re: [Qemu-devel] change x86 default machine type to Q35?,
Dr. David Alan Gilbert <=
- Re: [Qemu-devel] change x86 default machine type to Q35?, Eduardo Habkost, 2017/07/07
- Re: [Qemu-devel] change x86 default machine type to Q35?, Paolo Bonzini, 2017/07/05