Re: [Xen-devel] How to suspend a domU from within the domain itself

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 17/08/2010 20:52, "Long Wang" <longwang.longwang@xxxxxxxxx> wrote:

> I have a question about xen. I want to do the following operation:
> When a domU enters the hypervisor (e.g. error handling, or other ways
> to enter the hypervisor), the domU suspends itself.
> Then the dom0 can resumes the domU which was suspended.
> 
> I find that domain_pause() does not allow a domain to suspend itself. So I
> tried
> vcpu_sleep_sync(), vcpu_sleep_nosync(), or vcpu_force_reschedule()
> within the context of the domU in the hypervisor code. But none of
> them works. The domain continues its execution.
> 
> I am working on xen-3.3.1 for my legacy purposes. The domU is a PV (not hvm).
> 
> How can I suspend a domU from within the domU itself? I look forward
> to your help.

sched_op(SCHEDOP_shutdown, SHUTDOWN_suspend);

dom0 can resume execution via xc_domain_resume().

 -- Keir

> thanks,,
> long
> 
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