Re: [Xen-devel] [PATCH v4 05/27] ARM: GICv3 ITS: map ITS command buffer

2017-04-03 Thread Julien Grall
Hi Andre, On 04/03/2017 09:28 PM, Andre Przywara wrote: Instead of directly manipulating the tables in memory, an ITS driver sends commands via a ring buffer in normal system memory to the ITS h/w to create or alter the LPI mappings. Allocate memory for that buffer and tell the ITS about it to b

[Xen-devel] [PATCH v4 05/27] ARM: GICv3 ITS: map ITS command buffer

2017-04-03 Thread Andre Przywara
Instead of directly manipulating the tables in memory, an ITS driver sends commands via a ring buffer in normal system memory to the ITS h/w to create or alter the LPI mappings. Allocate memory for that buffer and tell the ITS about it to be able to send ITS commands. Signed-off-by: Andre Przywara