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19d52a83b7
Armv8.6 introduced the FEAT_LS64 extension, which provides a 64 *byte* store instruction. A related instruction is ST64BV0, which will replace the lowest 32 bits of the data with a value taken from the ACCDATA_EL1 system register (so that EL0 cannot alter them). Using that ST64BV0 instruction and accessing the ACCDATA_EL1 system register is guarded by two SCR_EL3 bits, which we should set to avoid a trap into EL3, when lower ELs use one of those. Add the required bits and pieces to make this feature usable: - Add the ENABLE_FEAT_LS64_ACCDATA build option (defaulting to 0). - Add the CPUID and SCR_EL3 bit definitions associated with FEAT_LS64. - Add a feature check to check for the existing four variants of the LS64 feature and detect future extensions. - Add code to save and restore the ACCDATA_EL1 register on secure/non-secure context switches. - Enable the feature with runtime detection for FVP and Arm FPGA. Please note that the *basic* FEAT_LS64 feature does not feature any trap bits, it's only the addition of the ACCDATA_EL1 system register that adds these traps and the SCR_EL3 bits. Change-Id: Ie3e2ca2d9c4fbbd45c0cc6089accbb825579138a Signed-off-by: Andre Przywara <andre.przywara@arm.com>
147 lines
4.2 KiB
Makefile
147 lines
4.2 KiB
Makefile
#
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# Copyright (c) 2021-2024, Arm Limited. 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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include common/fdt_wrappers.mk
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include lib/libfdt/libfdt.mk
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RESET_TO_BL31 := 1
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ifeq (${RESET_TO_BL31}, 0)
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$(error "This is a BL31-only port; RESET_TO_BL31 must be enabled")
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endif
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ifeq (${ENABLE_PIE}, 1)
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override SEPARATE_CODE_AND_RODATA := 1
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endif
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CTX_INCLUDE_AARCH32_REGS := 0
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ifeq (${CTX_INCLUDE_AARCH32_REGS}, 1)
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$(error "This is an AArch64-only port; CTX_INCLUDE_AARCH32_REGS must be disabled")
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endif
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ifeq (${TRUSTED_BOARD_BOOT}, 1)
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$(error "TRUSTED_BOARD_BOOT must be disabled")
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endif
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PRELOADED_BL33_BASE := 0x80080000
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FPGA_PRELOADED_DTB_BASE := 0x80070000
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$(eval $(call add_define,FPGA_PRELOADED_DTB_BASE))
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FPGA_PRELOADED_CMD_LINE := 0x1000
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$(eval $(call add_define,FPGA_PRELOADED_CMD_LINE))
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ENABLE_BRBE_FOR_NS := 2
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ENABLE_TRBE_FOR_NS := 2
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ENABLE_FEAT_AMU := 2
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ENABLE_FEAT_AMUv1p1 := 2
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ENABLE_FEAT_CSV2_2 := 2
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ENABLE_FEAT_ECV := 2
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ENABLE_FEAT_FGT := 2
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ENABLE_FEAT_HCX := 2
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ENABLE_FEAT_MTE2 := 2
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ENABLE_FEAT_TCR2 := 2
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ENABLE_SYS_REG_TRACE_FOR_NS := 2
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ENABLE_TRF_FOR_NS := 2
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ENABLE_SME_FOR_NS := 2
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ENABLE_SME2_FOR_NS := 2
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ENABLE_FEAT_LS64_ACCDATA := 2
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# Treating this as a memory-constrained port for now
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USE_COHERENT_MEM := 0
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# This can be overridden depending on CPU(s) used in the FPGA image
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HW_ASSISTED_COHERENCY := 1
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PL011_GENERIC_UART := 1
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SUPPORT_UNKNOWN_MPID ?= 1
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FPGA_CPU_LIBS := lib/cpus/${ARCH}/aem_generic.S
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# select a different set of CPU files, depending on whether we compile for
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# hardware assisted coherency cores or not
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ifeq (${HW_ASSISTED_COHERENCY}, 0)
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# Cores used without DSU
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FPGA_CPU_LIBS += lib/cpus/aarch64/cortex_a35.S \
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lib/cpus/aarch64/cortex_a53.S \
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lib/cpus/aarch64/cortex_a57.S \
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lib/cpus/aarch64/cortex_a72.S \
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lib/cpus/aarch64/cortex_a73.S
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else
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# AArch64-only cores
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FPGA_CPU_LIBS += lib/cpus/aarch64/cortex_a510.S \
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lib/cpus/aarch64/cortex_a520.S \
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lib/cpus/aarch64/cortex_a715.S \
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lib/cpus/aarch64/cortex_a720.S \
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lib/cpus/aarch64/cortex_x3.S \
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lib/cpus/aarch64/cortex_x4.S \
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lib/cpus/aarch64/neoverse_n_common.S \
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lib/cpus/aarch64/neoverse_n1.S \
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lib/cpus/aarch64/neoverse_n2.S \
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lib/cpus/aarch64/neoverse_v1.S \
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lib/cpus/aarch64/cortex_a725.S \
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lib/cpus/aarch64/cortex_x925.S
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# AArch64/AArch32 cores
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FPGA_CPU_LIBS += lib/cpus/aarch64/cortex_a55.S \
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lib/cpus/aarch64/cortex_a75.S
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endif
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ifeq (${SUPPORT_UNKNOWN_MPID}, 1)
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# Add support for unknown/invalid MPIDs (aarch64 only)
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$(eval $(call add_define,SUPPORT_UNKNOWN_MPID))
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FPGA_CPU_LIBS += lib/cpus/aarch64/generic.S
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endif
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# Allow detection of GIC-600
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GICV3_SUPPORT_GIC600 := 1
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GIC_ENABLE_V4_EXTN := 1
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# Include GICv3 driver files
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include drivers/arm/gic/v3/gicv3.mk
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FPGA_GIC_SOURCES := ${GICV3_SOURCES} \
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plat/common/plat_gicv3.c \
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plat/arm/board/arm_fpga/fpga_gicv3.c
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FDT_SOURCES := fdts/arm_fpga.dts
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PLAT_INCLUDES := -Iplat/arm/board/arm_fpga/include
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PLAT_BL_COMMON_SOURCES := plat/arm/board/arm_fpga/${ARCH}/fpga_helpers.S
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BL31_SOURCES += common/fdt_fixup.c \
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drivers/delay_timer/delay_timer.c \
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drivers/delay_timer/generic_delay_timer.c \
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drivers/arm/pl011/${ARCH}/pl011_console.S \
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plat/common/plat_psci_common.c \
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plat/arm/board/arm_fpga/fpga_pm.c \
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plat/arm/board/arm_fpga/fpga_topology.c \
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plat/arm/board/arm_fpga/fpga_console.c \
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plat/arm/board/arm_fpga/fpga_bl31_setup.c \
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${FPGA_CPU_LIBS} \
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${FPGA_GIC_SOURCES}
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BL31_SOURCES += ${FDT_WRAPPERS_SOURCES}
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$(eval $(call MAKE_S,$(BUILD_PLAT),plat/arm/board/arm_fpga/rom_trampoline.S,bl31))
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$(eval $(call MAKE_S,$(BUILD_PLAT),plat/arm/board/arm_fpga/kernel_trampoline.S,bl31))
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$(eval $(call MAKE_LD,$(BUILD_PLAT)/build_axf.ld,plat/arm/board/arm_fpga/build_axf.ld.S,bl31))
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ifeq ($($(ARCH)-ld-id),gnu-gcc)
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AXF_LDFLAGS += -Wl,--build-id=none -mno-fix-cortex-a53-843419
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else
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AXF_LDFLAGS += --build-id=none
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endif
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AXF_LDFLAGS += -nostdlib -no-pie
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bl31.axf: bl31 dtbs ${BUILD_PLAT}/rom_trampoline.o ${BUILD_PLAT}/kernel_trampoline.o ${BUILD_PLAT}/build_axf.ld
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$(s)echo " LD $@"
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$(q)$($(ARCH)-ld) -T ${BUILD_PLAT}/build_axf.ld -L ${BUILD_PLAT} ${AXF_LDFLAGS} -s -n -o ${BUILD_PLAT}/bl31.axf
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all: bl31.axf
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