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f62ad32269
Invalidate the Branch Target Buffer (BTB) on entry to EL3 by disabling and enabling the MMU. To achieve this without performing any branch instruction, a per-cpu vbar is installed which executes the workaround and then branches off to the corresponding vector entry in the main vector table. A side effect of this change is that the main vbar is configured before any reset handling. This is to allow the per-cpu reset function to override the vbar setting. This workaround is enabled by default on the affected CPUs. Change-Id: I97788d38463a5840a410e3cea85ed297a1678265 Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
79 lines
2.1 KiB
Makefile
79 lines
2.1 KiB
Makefile
#
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# Copyright (c) 2013-2017, ARM Limited and Contributors. All rights reserved.
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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################################################################################
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# Include SPM Makefile
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################################################################################
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ifeq (${ENABLE_SPM},1)
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$(info Including SPM makefile)
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include services/std_svc/spm/spm.mk
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endif
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include lib/psci/psci_lib.mk
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BL31_SOURCES += bl31/bl31_main.c \
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bl31/interrupt_mgmt.c \
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bl31/aarch64/bl31_entrypoint.S \
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bl31/aarch64/runtime_exceptions.S \
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bl31/aarch64/crash_reporting.S \
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bl31/bl31_context_mgmt.c \
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common/runtime_svc.c \
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plat/common/aarch64/platform_mp_stack.S \
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services/std_svc/std_svc_setup.c \
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${PSCI_LIB_SOURCES} \
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${SPM_SOURCES} \
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ifeq (${ENABLE_PMF}, 1)
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BL31_SOURCES += lib/pmf/pmf_main.c
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endif
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ifeq (${EL3_EXCEPTION_HANDLING},1)
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BL31_SOURCES += bl31/ehf.c
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endif
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ifeq (${SDEI_SUPPORT},1)
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ifeq (${EL3_EXCEPTION_HANDLING},0)
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$(error EL3_EXCEPTION_HANDLING must be 1 for SDEI support)
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endif
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BL31_SOURCES += services/std_svc/sdei/sdei_event.c \
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services/std_svc/sdei/sdei_intr_mgmt.c \
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services/std_svc/sdei/sdei_main.c \
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services/std_svc/sdei/sdei_state.c
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endif
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ifeq (${ENABLE_SPE_FOR_LOWER_ELS},1)
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BL31_SOURCES += lib/extensions/spe/spe.c
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endif
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ifeq (${ENABLE_AMU},1)
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BL31_SOURCES += lib/extensions/amu/aarch64/amu.c
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endif
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ifeq (${ENABLE_SVE_FOR_NS},1)
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BL31_SOURCES += lib/extensions/sve/sve.c
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endif
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ifeq (${WORKAROUND_CVE_2017_5715},1)
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BL31_SOURCES += lib/cpus/aarch64/workaround_cve_2017_5715_mmu.S
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endif
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BL31_LINKERFILE := bl31/bl31.ld.S
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# Flag used to indicate if Crash reporting via console should be included
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# in BL31. This defaults to being present in DEBUG builds only
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ifndef CRASH_REPORTING
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CRASH_REPORTING := $(DEBUG)
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endif
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$(eval $(call assert_boolean,CRASH_REPORTING))
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$(eval $(call assert_boolean,EL3_EXCEPTION_HANDLING))
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$(eval $(call assert_boolean,SDEI_SUPPORT))
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$(eval $(call add_define,CRASH_REPORTING))
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$(eval $(call add_define,EL3_EXCEPTION_HANDLING))
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$(eval $(call add_define,SDEI_SUPPORT))
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