Re: [Qemu-devel] Re: [PATCH 0/7] KVM SMP support, early version

[Glauber Costa]

On Sun, Nov 29, 2009 at 3:32 PM, Jan Kiszka <address@hidden> wrote:
> Glauber Costa wrote:
>> Hi guys,
>>
>> This is an early version of smp support in kvm that kinda works.
>> It has some known problems that I am still tracking. For example,
>> it does not reset very well. Also, initialization is a bit slow,
>> probably because of the number of remote ioctl calls involved.
>> But I believe Jan's patch to do a single ioctl can make it better.
>
> That approach has been buried, we decided to continue extending via new
> ioctls.
>
> But why do you need that many remote calls during init? Aren't the
> initial ioctls issued by the vcpu threads themselves?

Yes, but system_reset is called from the io-thread, and it fires a lot
of ioctls.

However, I have an already working version that does a much better job
than that.
Will post today with details



-- 
Glauber  Costa.
"Free as in Freedom"
http://glommer.net

"The less confident you are, the more serious you have to act."