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

[Julien Grall <julien@xxxxxxx>]

On 07/04/2020 17:25, Bertrand Marquis wrote:
> This is possible to do on a per interrupt basis or when all interrupts 
> in LR registers have all been handled (maintenance interrupt when there 
> is nothing left to handle in LR registers, used to fire other interrupts 
> if we have more pending interrupts then number of LR registers).
> Maybe a solution making sure we get a maintenance interrupts once all 
> interrupts in LR registers have been handled could be a good mitigation ?
The chance of having multiple interrupts inflight is fairly limited. So 
effectively, you will trap for every interrupts.
Cheers,

--
Julien Grall