Re: [Xen-devel] [PATCH v10 2/3] x86/mem_sharing: reset a fork

[Tamas K Lengyel <tamas@xxxxxxxxxxxxx>]

> You also need to reset the contents of the special pages, the
> vcpu_info pages and the shared_info page in order to match the state
> the VM was in when forking.

Ack.

>
> PV timers should also be reset to parent's state AFAICT, or else you
> will get spurious timer interrupts.

Could you point me to the right direction here for where the timers
are located in the codebase?

> In fact you should check against the state of the parent, because the
> fork might have changed the position of the shared info or any other
> of those magic areas, and that should be reverted to the state they
> are in the parent.

Makes sense.

Thanks,
Tamas

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