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This patch provides an option to specify a interrupt routing model where non-secure interrupts (IRQs) are routed to EL3 instead of S-EL1. When such an interrupt occurs, the TSPD arranges a return to the normal world after saving any necessary context. The interrupt routing model to route IRQs to EL3 is enabled only during STD SMC processing. Thus the pre-emption of S-EL1 is disabled during Fast SMC and Secure Interrupt processing. A new build option TSPD_ROUTE_NS_INT_EL3 is introduced to change the non secure interrupt target execution level to EL3. Fixes ARM-software/tf-issues#225 Change-Id: Ia1e779fbbb6d627091e665c73fa6315637cfdd32
61 lines
2.6 KiB
Makefile
61 lines
2.6 KiB
Makefile
#
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# Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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#
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# Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# Neither the name of ARM nor the names of its contributors may be used
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# to endorse or promote products derived from this software without specific
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# prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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TSPD_DIR := services/spd/tspd
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SPD_INCLUDES := -Iinclude/bl32/tsp
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SPD_SOURCES := services/spd/tspd/tspd_common.c \
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services/spd/tspd/tspd_helpers.S \
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services/spd/tspd/tspd_main.c \
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services/spd/tspd/tspd_pm.c
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# This dispatcher is paired with a Test Secure Payload source and we intend to
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# build the Test Secure Payload along with this dispatcher.
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#
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# In cases where an associated Secure Payload lies outside this build
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# system/source tree, the the dispatcher Makefile can either invoke an external
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# build command or assume it pre-built
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BL32_ROOT := bl32/tsp
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# Include SP's Makefile. The assumption is that the TSP's build system is
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# compatible with that of Trusted Firmware, and it'll add and populate necessary
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# build targets and variables
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include ${BL32_ROOT}/tsp.mk
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# Let the top-level Makefile know that we intend to build the SP from source
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NEED_BL32 := yes
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# Flag used to enable routing of non-secure interrupts to EL3 when they are
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# generated while the code is executing in S-EL1/0.
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TSPD_ROUTE_IRQ_TO_EL3 := 0
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$(eval $(call assert_boolean,TSPD_ROUTE_IRQ_TO_EL3))
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$(eval $(call add_define,TSPD_ROUTE_IRQ_TO_EL3))
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