Re: [Xen-devel] [RFC PATCH v2 04/26] ARM: GICv3 ITS: map ITS command buffer

2017-01-04 Thread Stefano Stabellini
On Thu, 22 Dec 2016, Andre Przywara wrote: > Instead of directly manipulating the tables in memory, an ITS driver > sends commands via a ring buffer 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. >

[Xen-devel] [RFC PATCH v2 04/26] ARM: GICv3 ITS: map ITS command buffer

2016-12-22 Thread Andre Przywara
Instead of directly manipulating the tables in memory, an ITS driver sends commands via a ring buffer 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 --- xen/arch/arm/gic-