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[Xen-devel] [Question] vcpu-set before or after xen_pause_requested



Keir,

I have a question.
Recently we want to support 'xm vcpu-set' command for HVM vcpu hotplug.
At xenstore.c --> xenstore_parse_domain_config(), we add xs_watch for xendstore 
cpu node;
At xenstore.c --> xenstore_process_event(), we add 
xenstore_process_vcpu_set_event() to handle vcpu-set event.

Now the question is,
At xenstore.c --> xenstore_process_event(), where is right place to add 
xenstore_process_vcpu_set_event():
1. add xenstore_process_vcpu_set_event() before xen_pause_requested check? or
2. add xenstore_process_vcpu_set_event() after xen_pause_requested check?
That means, may vcpu-set take effect between xm save/resume command? seems now 
pci hotplug and usb hotplug do so.

Thanks,
Jinsong
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