genode/base-hw/lib/mk/vea9x4_platform_support.mk
Stefan Kalkowski 8393ac6895 base-hw: implement vm_session for TrustZone
* Introduces Schedule_context
* Use fast-interrupts or normal interrupts
* Add mode-transition between secure/non-secure world
* Limit system resources for Genode apps due to non-secure world

This commit implements the newly introduced Vm session interface to be used
on top of TrustZone capable Armv7 CPUs. Therefore a new Schedule_context is
introduced in the kernel. Threads and Vms are both Schedule_contexts used
by the scheduler. In contrast to a thread a vm uses a different assembler
mode switch to the non-secure, virtual world, as well as another exception
is used, when the non-secure world is left. For both worlds to co-exist
the interrupt-controller needs to be configured, so that the secure (Genode)
world uses fast-interrupts only, and the non-secure world only legacy
interrupts.
The only TrustZone capable platform the base-hw kernel works on top of
is the CoreTile Express 9x4 for the Versatile Express motherboard. For a
virtual machine working properly on top some platform resources must be
reserved. Therefore there exist two flavours of this platform now, one with
the 'trustzone' spec-variable enabled, and one without. If 'trustzone' is
specified most platform resources (DDR-RAM, and most IRQs) are reserved
for the Vm and not available to the secure Genode world.
2012-10-29 10:08:30 +01:00

15 lines
378 B
Makefile

#
# \brief Platform implementations specific for base-hw and VEA9X4
# \author Stefan Kalkowski
# \date 2012-10-04
#
# add include paths
INC_DIR += $(REP_DIR)/src/core/include \
$(BASE_DIR)/src/core/include
SRC_CC = platform_support.cc platform_services.cc
vpath platform_support.cc $(REP_DIR)/src/core/vea9x4
vpath platform_services.cc $(BASE_DIR)/src/core