Re: [Xen-devel] [PATCH v3 04/26] ARM: GICv3 ITS: map ITS command buffer

2017-04-03 Thread Julien Grall
Hi Andre, On 31/03/17 19:05, 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 be abl

Re: [Xen-devel] [PATCH v3 04/26] ARM: GICv3 ITS: map ITS command buffer

2017-03-31 Thread Stefano Stabellini
On Fri, 31 Mar 2017, 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 be able >

[Xen-devel] [PATCH v3 04/26] ARM: GICv3 ITS: map ITS command buffer

2017-03-31 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