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feat: improve compatibility of macOS on non-Intel host CPUs 

Adapted from https://github.com/quickemu-project/quickemu/issues/1114#issuecomment-2115516935

Tested full installs of Mojave, Catalina, Big Sur, Monterey, Ventura and Sonoma on AMD Ryzen 5950X. Performed updates post-install and installed Revolutionator.
This commit is contained in:
Martin Wimpress 2024-05-17 12:08:14 +01:00 committed by Martin Wimpress
parent 023a7355db
commit b009e5cef5
1 changed files with 42 additions and 9 deletions
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51
quickemu
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@ -247,12 +247,45 @@ function get_cpu_info() {
fi
}
# returns an enabled or disable CPU flag for QEMU, based on the host CPU
# capabilities, or nothing if the flag is not supported
# converts the flags appropriately from macOS and Linux to QEMU
function configure_cpu_flag() {
local HOST_CPU_FLAG="${1}"
# Convert the flag to lowercase for QEMU
local QEMU_CPU_FLAG=${HOST_CPU_FLAG,,}
if check_cpu_flag "${HOST_CPU_FLAG}"; then
# Replace _ with - to make it compatible with QEMU
QEMU_CPU_FLAG="${HOST_CPU_FLAG//_/-}"
QEMU_CPU_FLAG="${QEMU_CPU_FLAG//4_/4\.}"
# macOS uses different flag names
if [ "${OS_KERNEL}" == "Darwin" ]; then
case "${HOST_CPU_FLAG}" in
avx) QEMU_CPU_FLAG="AVX1.0";;
esac
fi
echo ",+${QEMU_CPU_FLAG}"
else
# Fully disable any QEMU flags that are not supported by the host CPU
if [ "${HOST_CPU_VENDOR}" == "AuthenticAMD" ]; then
case ${HOST_CPU_FLAG} in
pcid) echo ",-${QEMU_CPU_FLAG}";;
esac
fi
fi
}
# checks if a CPU flag is supported by the host CPU on Linux and macOS
function check_cpu_flag() {
local HOST_CPU_FLAG=""
if [ "${OS_KERNEL}" == "Darwin" ]; then
# Convert the flag to uppercase and replace _ with .
# Make the macOS compatible: uppercase, replace _ with . and replace X2APIC with x2APIC
HOST_CPU_FLAG="${1^^}"
HOST_CPU_FLAG="${HOST_CPU_FLAG//_/.}"
HOST_CPU_FLAG="${HOST_CPU_FLAG//X2APIC/x2APIC}"
if [ "${HOST_CPU_FLAG}" == "AVX" ]; then
HOST_CPU_FLAG="AVX1.0"
fi
if sysctl -n machdep.cpu.features | grep -o "${HOST_CPU_FLAG}" > /dev/null; then
return 0
else
@ -371,8 +404,8 @@ function configure_cpu() {
CPU_MODEL="host"
CPU="-cpu ${CPU_MODEL},-pdpe1gb,+hypervisor"
else
CPU_MODEL="Haswell-v4"
CPU="-cpu ${CPU_MODEL},vendor=GenuineIntel,-pdpe1gb,+avx,+sse,+sse2,+sse3,vmware-cpuid-freq=on"
CPU_MODEL="Haswell-v2"
CPU="-cpu ${CPU_MODEL},vendor=GenuineIntel,-pdpe1gb,+avx,+sse,+sse2,+ssse3,vmware-cpuid-freq=on"
fi
# A CPU with fma is required for Metal support
# A CPU with invtsc is required for macOS to boot
@ -411,12 +444,12 @@ function configure_cpu() {
esac
if [ "${HOST_CPU_VENDOR}" != "GenuineIntel" ] && [ -z "${HYPERVISOR}" ]; then
for FLAG in abm adx aes amd-ssbd bmi1 bmi2 cx8 eist f16c fma invtsc \
mmx movbe mpx popcnt smep vaes vbmi2 vpclmulqdq \
xgetbv1 xsave xsaveopt; do
if check_cpu_flag "${FLAG}"; then
CPU+=",+${FLAG}"
fi
for FLAG in abm adx aes amd-ssbd apic arat bmi1 bmi2 clflush cmov cx8 cx16 de \
eist erms f16c fma fp87 fsgsbase fxsr invpcid invtsc lahf_lm lm \
mca mce mmx movbe mpx msr mtrr nx pae pat pcid pge pse popcnt pse36 \
rdrand rdtscp sep smep syscall tsc tsc_adjust vaes vbmi2 vmx vpclmulqdq \
x2apic xgetbv1 xsave xsaveopt; do
CPU+=$(configure_cpu_flag "${FLAG}")
done
fi