Re: [Qemu-devel] [RFC V2 10/10] cpus: reclaim allocated vCPU objects

[Peter Maydell]

On 8 December 2014 at 15:38, Igor Mammedov <address@hidden> wrote:
> On Mon, 8 Dec 2014 10:50:21 +0000
> Peter Maydell <address@hidden> wrote:
>> Why can't the kernel handle our just destroying the vcpu and
>> later recreating it if necessary? That seems the more logical
>> approach than trying to keep fds hanging around in userspace
>> for reuse.
>
> It's somewhat complex approach and it was suggested on KVM list to go
> parking route. for more details see thread
>  https://www.mail-archive.com/address@hidden/msg102839.html

If the kernel can't cope with userspace creating and destroying
vCPUs dynamically then that seems like a kernel bug to me.
It seems better to me to fix that directly rather than make
non-x86 architectures change things around to help with working
around that bug...

thanks
-- PMM