Re: [Xen-devel] [PATCH v5 09/30] ARM: GICv3 ITS: introduce host LPI array

2017-04-06 Thread Julien Grall
Hi Andre, On 06/04/17 11:31, Andre Przywara wrote: On 06/04/17 00:37, Stefano Stabellini wrote: On Thu, 6 Apr 2017, Andre Przywara wrote: The number of LPIs on a host can be potentially huge (millions), although in practise will be mostly reasonable. So prematurely allocating an array of struc

Re: [Xen-devel] [PATCH v5 09/30] ARM: GICv3 ITS: introduce host LPI array

2017-04-06 Thread Andre Przywara
Hi, On 06/04/17 00:37, Stefano Stabellini wrote: > On Thu, 6 Apr 2017, Andre Przywara wrote: >> The number of LPIs on a host can be potentially huge (millions), >> although in practise will be mostly reasonable. So prematurely allocating >> an array of struct irq_desc's for each LPI is not an opti

Re: [Xen-devel] [PATCH v5 09/30] ARM: GICv3 ITS: introduce host LPI array

2017-04-05 Thread Stefano Stabellini
On Thu, 6 Apr 2017, Andre Przywara wrote: > The number of LPIs on a host can be potentially huge (millions), > although in practise will be mostly reasonable. So prematurely allocating > an array of struct irq_desc's for each LPI is not an option. > However Xen itself does not care about LPIs, as e

[Xen-devel] [PATCH v5 09/30] ARM: GICv3 ITS: introduce host LPI array

2017-04-05 Thread Andre Przywara
The number of LPIs on a host can be potentially huge (millions), although in practise will be mostly reasonable. So prematurely allocating an array of struct irq_desc's for each LPI is not an option. However Xen itself does not care about LPIs, as every LPI will be injected into a guest (Dom0 for n