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# Copyright 2020 syzkaller project authors. All rights reserved.
# Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
shell:
- make vexpress_defconfig
- make kvm_guest.config
config:
- CMDLINE: [append, "root=/dev/vda console=ttyAMA0 vmalloc=512M"]
- CMDLINE_EXTEND
# If we enable KASAN, we may want the following configs as well.
# KASAN_INLINE leads to a too large kernel image which is mishandled by qemu or kernel and does not boot:
# https://lore.kernel.org/linux-arm-kernel/20210119130010.GA2338@C02TD0UTHF1T.local/T/#m78fdfcc41ae831f91c93ad5dabe63f7ccfb482f0
# - KASAN_OUTLINE
# - CC_OPTIMIZE_FOR_SIZE
# ARM_LPAE=y/n are two major and very different MMUs used on ARM32 systems.
# Currently we only test ARM_LPAE=y, but if we have another instance, it would be useful to use ARM_LPAE=n.
- ARM_LPAE
# The other one (UNWINDER_ARM) leads to unparsable oopses (no indication of stack start).
- UNWINDER_FRAME_POINTER
# Print PCs in stack traces otherwise we fail to parse oopses.
- BACKTRACE_VERBOSE
# Presumably this gives more interesting coverage.
- HIGHMEM
- HIGHPTE
- DEBUG_HIGHMEM
# Removed by "mm: remove the BOUNCE config option".
- BOUNCE: [-v6.19]
- BIG_LITTLE
- BL_SWITCHER
- ARM_BIG_LITTLE_CPUIDLE
- VFP
- NEON
- KERNEL_MODE_NEON
- VMSPLIT_2G
- WQ_POWER_EFFICIENT_DEFAULT
- ENERGY_MODEL: [-baseline, -onlyusb]
- PARAVIRT_TIME_ACCOUNTING
- ARM_VEXPRESS_SPC_CPUFREQ: [-baseline, -onlyusb]
- BINFMT_ELF_FDPIC
- BINFMT_FLAT
- BINFMT_FLAT_OLD
- BINFMT_ZFLAT
- BINFMT_SHARED_FLAT: [-v6.1]
- CAN_KVASER_PCIEFD: [-baseline, -onlyusb]
# This can be only selected by other options.
- CRC_T10DIF: [-v6.15]
# Otherwise fuzzing on arm32 is currently hindered due to the "BUG: using smp_processor_id() in preemptible code" bug.
# See https://github.com/google/syzkaller/issues/3249
- HARDEN_BRANCH_PREDICTOR: n
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