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

[Peter Maydell]

On 8 December 2014 at 10:28, Gu Zheng <address@hidden> wrote:
> Yes, it's a limitation now, but it is not the final implementation.
> As to the QEMU side, the vcpu object in kernel is stateless, and a
> reset operation will be done when we hot add a vcpu, so I think we
> can kill the limitation, just choose a parked vcpu and reconfigure
> it before we use it.

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.

-- PMM