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boot-qemu.sh: Use implementation defined pointer authentication algorithm #62

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Merged
nathanchance merged 1 commit into from
Apr 28, 2022
Merged

boot-qemu.sh: Use implementation defined pointer authentication algorithm #62

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14 changes: 10 additions & 4 deletions boot-qemu.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -232,17 +232,23 @@ function setup_qemu_args() {
KIMAGE=Image.gz
QEMU=(qemu-system-aarch64)
get_full_kernel_path
if [[ $(get_qemu_ver_code) -ge 602050 ]]; then
QEMU_VER_CODE=$(get_qemu_ver_code)
if [[ ${QEMU_VER_CODE} -ge 602050 ]]; then
LNX_VER_CODE=$(get_lnx_ver_code gzip -c -d "${KERNEL}")
# https://gitlab.com/qemu-project/qemu/-/issues/964
if [[ ${LNX_VER_CODE} -lt 416000 ]]; then
CPU=cortex-a72
# https://gitlab.com/qemu-project/qemu/-/commit/69b2265d5fe8e0f401d75e175e0a243a7d505e53
# lpa2=off: https://gitlab.com/qemu-project/qemu/-/commit/69b2265d5fe8e0f401d75e175e0a243a7d505e53
# pauth-impdef=true: https://lore.kernel.org/YlgVa+AP0g4IYvzN@lakrids/
elif [[ ${LNX_VER_CODE} -lt 512000 ]]; then
CPU=max,lpa2=off
CPU=max,lpa2=off,pauth-impdef=true
fi
fi
[[ -z ${CPU} ]] && CPU=max
if [[ -z ${CPU} ]]; then
CPU=max
# https://lore.kernel.org/YlgVa+AP0g4IYvzN@lakrids/
[[ ${QEMU_VER_CODE} -ge 600000 ]] && CPU=${CPU},pauth-impdef=true
fi
APPEND_STRING+="console=ttyAMA0 earlycon "
QEMU_ARCH_ARGS=(
-cpu "${CPU}"
Expand Down