Re: [Qemu-devel] Re: [PATCH 2/7] Enable I/O thread and VNC threads by default

[Jan Kiszka]

On 2011-02-08 11:27, Aurelien Jarno wrote:
> Stefan Hajnoczi a écrit :
>> Introducing IOTHREAD made !CONFIG_IOTHREAD platforms second class
>> citizens.  I think you'd like people to provide full support when they
>> introduce new features.
>>
> 
> I think you really pointed the problem here. We should probably add a
> feature that will make KVM second class citizen so that people can
> understand what it means.

There are people out there who already thought loudly about forking or
rewriting those QEMU bits required for KVM support just to make "life
easier". I already disagreed on this, and I continue to do so as both
use cases nicely benefit from each other.

KVM is driving QEMU features today that would otherwise have taken years
to show up, if at all. On the other side, all those bits related to the
cross-arch platform emulation of non-x86 helps and will continue to help
KVM support on those archs as well (we already have it on PPC, we'll see
on ARM and likely more in the future).

So, please let's stop this useless finger pointing, on both sides. KVM
and QEMU is a symbiosis. Unfortunately, this is not (yet?) the case for
POSIX vs. Windows hosts.

Jan

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