Re: [Xen-devel] how to properly reset event channel in PVonHVM after kexec boot

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Wed, 2012-03-14 at 10:52 +0000, Olaf Hering wrote:
> What is the best way to reset all registered event channels after an
> kexec boot in a PVonHVM guest? Right now repeated kexec boots will fail
> after 1300 iterations because no more event channels can be registered.
> 
> EVTCHNOP_reset can not be used because it expects the domid, which the guest
> does not know.

It appears that it accepts DOMID_SELF. It calls
rcu_lock_target_domain_by_id which handles it explicitly.

Ian.



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