On Mon, 8 Dec 2014 10:50:21 +0000 Peter Maydell <peter.mayd...@linaro.org> wrote:
> On 8 December 2014 at 10:28, Gu Zheng <guz.f...@cn.fujitsu.com> 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. 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/kvm@vger.kernel.org/msg102839.html > > -- PMM >
