Re: [Xen-devel] [PATCH v2] xen/arm: implement GICD_I[S/C]ACTIVER reads

[Julien Grall <julien@xxxxxxx>]

qHi Stefano,

On 27/03/2020 02:34, Stefano Stabellini wrote:
> This is a simple implementation of GICD_ICACTIVER / GICD_ISACTIVER
> reads. It doesn't take into account the latest state of interrupts on
> other vCPUs. Only the current vCPU is up-to-date. A full solution is
> not possible because it would require synchronization among all vCPUs,
> which would be very expensive in terms or latency.
Your sentence suggests you have number showing that correctly emulating 
the registers would be too slow. Mind sharing them?
Cheers,

--
Julien Grall