xen/arm: Add new platform specific callback device_is_blacklist
Each platform code will list the device that must not pass-through to a guest.
Theses devices are used for: power management, timer,...
When theses devices are given to DOM0, it can controls the hardware and then
break the whole platform.
This callback is enough until we will start to care about power performance.
For this purpose, we may need to extend this interface to implement per-device
MMIO filtering to allow dom0 to continue to control devices which it owns which
happen to share e.g. a clock controller with Xen.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
projects / xen.git / commit