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Re: [libvirt] [Qemu-devel] Modern CPU models cannot be used with libvirt



On 03/26/2012 01:24 PM, Jiri Denemark wrote:
> ...
> > > The command line becomes unstable if you use -nodefconfig.
> > 
> > -no-user-config solves this but I fully expect libvirt would continue to use 
> > -nodefconfig.
>
> Libvirt uses -nodefaults -nodefconfig because it wants to fully control how
> the virtual machine will look like (mainly in terms of devices). In other
> words, we don't want any devices to just magically appear without libvirt
> knowing about them. -nodefaults gets rid of default devices that are built
> directly in qemu. Since users can set any devices or command line options
> (such as enable-kvm) into qemu configuration files in @SYSCONFDIR@, we need to
> avoid reading those files as well. Hence we use -nodefconfig. However, we
> would still like qemu to read CPU definitions, machine types, etc. once they
> become externally loaded configuration (or however we decide to call it). That
> said, when CPU definitions are moved into @DATADIR@, and -no-user-config is
> introduced, I don't see any reason for libvirt to keep using -nodefconfig.
>
> I actually like
> -no-user-config
> more than
> -nodefconfig -readconfig @DATADIR@/...
> since it would avoid additional magic to detect what files libvirt should
> explicitly pass to -readconfig but basically any approach that would allow us
> to do read files only from @DATADIR@ is much better than what we have with
> -nodefconfig now.

That's how I see it as well.

-- 
error compiling committee.c: too many arguments to function


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