Re: [Xen-devel] [v3 14/15] Update Posted-Interrupts Descriptor during vCPU scheduling

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

> From: Wu, Feng
> Sent: Wednesday, June 24, 2015 1:18 PM
> 
> The basic idea here is:
> 1. When vCPU's state is RUNSTATE_running,
>         - set 'NV' to 'Notification Vector'.
>         - Clear 'SN' to accpet PI.
>         - set 'NDST' to the right pCPU.
> 2. When vCPU's state is RUNSTATE_blocked,
>         - set 'NV' to 'Wake-up Vector', so we can wake up the
>           related vCPU when posted-interrupt happens for it.
>         - Clear 'SN' to accpet PI.
> 3. When vCPU's state is RUNSTATE_runnable/RUNSTATE_offline,
>         - Set 'SN' to suppress non-urgent interrupts.
>           (Current, we only support non-urgent interrupts)
>         - Set 'NV' back to 'Notification Vector' if needed.
> 
> Signed-off-by: Feng Wu <feng.wu@xxxxxxxxx>

Acked-by: Kevin Tian <kevin.tian@xxxxxxxxx>


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