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

Alexander Graf agraf at suse.de
Mon Mar 12 17:59:29 UTC 2012


On 12.03.2012, at 18:53, Andreas Färber wrote:

> Am 12.03.2012 18:47, schrieb Peter Maydell:
>> On 12 March 2012 17:41, Andreas Färber <afaerber at suse.de> wrote:
>>> Also keep in mind linux-user. There's no concept of a machine there, but
>>> there's a cpu_copy() function used for forking that tries to re-create
>>> the CPU based on its model.
>> 
>> Incidentally, do you know why the linux-user code calls cpu_reset on
>> the newly copied CPU state but only for TARGET_I386/SPARC/PPC ? That
>> looks very odd to me...
> 
> Incidentally for i386 I do: cpu_reset() is intentionally not part of
> cpu_init() there because afterwards the machine or something sets
> whether this CPU is a "bsp" (Board Support Package? ;)) and only then
> resets it.
> 
> For ppc and sparc I don't know but I'd be surprised if it's necessary
> for ppc... Alex?

Phew - no idea. Does git blame know more there? :)


Alex




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