Re: [Qemu-ppc] [Qemu-devel] [RFC PATCH v2] PPC: smp: autodetect numbers of threads per core

[Mike Day]

Alexey Kardashevskiy <address@hidden> writes:

> On 01/10/2014 10:40 AM, Alexander Graf wrote:
>> 
>
>> What if we make the max thread count a property of our cpu class? The
>> we
> can add a threads=max option which will be identical between kvm and tcg.
>
>
> You lost me here :)
> Right now the sequence is:
> 1. smp_parse
> 2. config_accelerator
> 3. machine_init
>
> I proposed
> 1. config_accelerator - reads max threads from KVM (and initializes "host"
> type)
> 2. smp_parse - does the parsing using smp_threads tweaked in 1)
> 3. machine_init - creates CPUs which may or may be not "host".

The patch as it its now is very simple and well-contained. I wonder how
much it would expand if we added a max thread count to the cpu class. It
seems like the need for a max thread count is idiomatic to powerpc. 

Mike

-- 
Mike Day | "Endurance is a Virtue"