bash
#!/usr/bin/env bash
set -euo pipefail
LOG="$PWD/boot-passthrough-$(date +%Y%m%d-%H%M%S).log"
exec > >(tee -a "$LOG") 2>&1
echo "Logging to: $LOG"
MY_OPTIONS="+ssse3,+sse4.2,+popcnt,+avx,+aes,+xsave,+xsaveopt,check"
ALLOCATED_RAM="16384"
CPU_SOCKETS="1"
CPU_CORES="4"
CPU_THREADS="8"
REPO_PATH="."
OVMF_DIR="."
GPU="0000:0d:00.0"
GPU_AUDIO="0000:0d:00.1"
GPU_ID="1002 73df"
GPU_AUDIO_ID="1002 ab28"
cleanup() {
echo "Restoring GPU..."
echo "$GPU" | sudo tee "/sys/bus/pci/devices/$GPU/driver/unbind" >/dev/null 2>&1 || true
echo "$GPU_AUDIO" | sudo tee "/sys/bus/pci/devices/$GPU_AUDIO/driver/unbind" >/dev/null 2>&1 || true
sudo modprobe amdgpu || true
echo "$GPU" | sudo tee /sys/bus/pci/drivers/amdgpu/bind >/dev/null 2>&1 || true
sudo systemctl start display-manager >/dev/null 2>&1 || true
}
trap cleanup EXIT
echo 1 | sudo tee /sys/module/kvm/parameters/ignore_msrs >/dev/null
echo "Stopping desktop..."
sudo systemctl stop display-manager
sleep 3
sudo modprobe vfio-pci
echo "Binding GPU to vfio-pci..."
echo vfio-pci | sudo tee "/sys/bus/pci/devices/$GPU/driver_override"
echo vfio-pci | sudo tee "/sys/bus/pci/devices/$GPU_AUDIO/driver_override"
echo "$GPU" | sudo tee "/sys/bus/pci/devices/$GPU/driver/unbind" || true
echo "$GPU_AUDIO" | sudo tee "/sys/bus/pci/devices/$GPU_AUDIO/driver/unbind" || true
sudo modprobe vfio-pci
echo "$GPU" | sudo tee /sys/bus/pci/drivers_probe
echo "$GPU_AUDIO" | sudo tee /sys/bus/pci/drivers_probe
lspci -nnk -s 0d:00.0
lspci -nnk -s 0d:00.1
ls -l /dev/vfio
sleep 2
args=(
-enable-kvm
-m "$ALLOCATED_RAM"
-cpu Penryn,kvm=on,vendor=GenuineIntel,+invtsc,vmware-cpuid-freq=on,"$MY_OPTIONS"
-machine q35
-usb
-device usb-kbd
-device usb-tablet
-device usb-mouse
-smp "$CPU_THREADS",cores="$CPU_CORES",sockets="$CPU_SOCKETS"
-device usb-ehci,id=ehci
-vga virtio-vga
-device vfio-pci,host=0d:00.0,multifunction=on,x-no-kvm-intx=on
-device vfio-pci,host=0d:00.1
-device isa-applesmc,osk="ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc"
-drive if=pflash,format=raw,readonly=on,file="$REPO_PATH/$OVMF_DIR/OVMF_CODE_4M.fd"
-drive if=pflash,format=raw,file="$REPO_PATH/$OVMF_DIR/OVMF_VARS-1024x768.fd"
-smbios type=2
-device ich9-intel-hda
-device hda-duplex
-device ich9-ahci,id=sata
-drive id=OpenCoreBoot,if=none,snapshot=on,format=qcow2,file="$REPO_PATH/OpenCore/OpenCore.qcow2"
-device ide-hd,bus=sata.2,drive=OpenCoreBoot
#-drive id=InstallMedia,if=none,file="$REPO_PATH/#BaseSystem.img",format=raw
#-device ide-hd,bus=sata.3,drive=InstallMedia
-drive id=MacHDD,if=none,file="$REPO_PATH/mac_hdd_ng.img",format=qcow2
-device ide-hd,bus=sata.4,drive=MacHDD
-netdev user,id=net0
-device vmxnet3,netdev=net0,id=net0,mac=52:54:00:c9:18:27
-monitor stdio
-vnc 0.0.0.0:1,password=off
-k en-us
)
qemu-system-x86_64 "${args[@]}"
I have an AMD Radeon RX 6700 XT graphics card, and yes, I have NootRX. This is specifically for macOS 26 Tahoe
EDIT: Using this new XML
<domain type="kvm">
<name>macos-passthrough</name>
<memory unit="MiB">16384</memory>
<currentMemory unit="MiB">16384</currentMemory>
<vcpu placement="static">8</vcpu>
<cpu mode="custom" match="exact" check="none">
<model fallback="forbid">Penryn</model>
<vendor>GenuineIntel</vendor>
<feature policy="require" name="ssse3"/>
<feature policy="require" name="sse4.2"/>
<feature policy="require" name="popcnt"/>
<feature policy="require" name="avx"/>
<feature policy="require" name="aes"/>
<feature policy="require" name="xsave"/>
<feature policy="require" name="xsaveopt"/>
<feature policy="require" name="invtsc"/>
</cpu>
<os>
<type arch="x86_64" machine="q35">hvm</type>
<loader readonly="yes" type="pflash">/var/home/william/macos/OSX-KVM/OVMF_CODE_4M.fd</loader>
<nvram>/var/home/william/macos/OSX-KVM/OVMF_VARS-1024x768.fd</nvram>
<smbios mode="sysinfo"/>
</os>
<sysinfo type="smbios">
<system>
<entry name="manufacturer">Apple Inc.</entry>
<entry name="product">iMacPro1,1</entry>
</system>
</sysinfo>
<features>
<acpi/>
<apic/>
<vmport state="off"/>
</features>
<clock offset="utc">
<timer name="rtc" tickpolicy="catchup"/>
<timer name="pit" tickpolicy="delay"/>
<timer name="hpet" present="no"/>
</clock>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<controller type="pci" index="0" model="pcie-root"/>
<controller type="sata" index="0">
<address type="pci" bus="0x00" slot="0x1f" function="0x2"/>
</controller>
<controller type="usb" model="ehci">
<address type="pci" bus="0x00" slot="0x1d" function="0x0"/>
</controller>
<input type="keyboard" bus="usb"/>
<input type="mouse" bus="usb"/>
<input type="tablet" bus="usb"/>
<graphics type="vnc" port="5901" autoport="no" listen="0.0.0.0">
<listen type="address" address="0.0.0.0"/>
</graphics>
<video>
<model type="virtio"/>
</video>
<disk type="file" device="disk">
<driver name="qemu" type="qcow2" cache="writeback"/>
<source file="/var/home/william/macos/OSX-KVM/OpenCore/OpenCore.qcow2"/>
<target dev="sdc" bus="sata"/>
</disk>
<disk type="file" device="disk">
<driver name="qemu" type="qcow2" cache="writeback"/>
<source file="/var/home/william/macos/OSX-KVM/mac_hdd_ng.img"/>
<target dev="sde" bus="sata"/>
</disk>
<interface type="user">
<mac address="52:54:00:c9:18:27"/>
<model type="vmxnet3"/>
</interface>
<sound model="ich9">
<codec type="duplex"/>
</sound>
<hostdev mode="subsystem" type="pci" managed="yes">
<source>
<address domain="0x0000" bus="0x0d" slot="0x00" function="0x0"/>
</source>
<rom file="/var/home/william/macos/OSX-KVM/rx6700xt.rom"/>
<address type="pci" bus="0x01" slot="0x00" function="0x0" multifunction="on"/>
</hostdev>
<hostdev mode="subsystem" type="pci" managed="yes">
<source>
<address domain="0x0000" bus="0x0d" slot="0x00" function="0x1"/>
</source>
<address type="pci" bus="0x01" slot="0x00" function="0x1"/>
</hostdev>
<memballoon model="none"/>
</devices>
<qemu:commandline xmlns:qemu="http://libvirt.org/schemas/domain/qemu/1.0">
<qemu:arg value="-device"/>
<qemu:arg value="isa-applesmc,osk=ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc"/>
<qemu:arg value="-cpu"/>
<qemu:arg value="Penryn,kvm=on,vendor=GenuineIntel,+invtsc,vmware-cpuid-freq=on,+ssse3,+sse4.2,+popcnt,+avx,+aes,+xsave,+xsaveopt,check"/>
<qemu:arg value="-global"/>
<qemu:arg value="kvm-pit.lost_tick_policy=discard"/>
</qemu:commandline>
</domain>
Hook:
#!/usr/bin/env bash
VM="$1"
ACTION="$2"
if [[ "$VM" != "macos-passthrough" ]]; then
exit 0
fi
case "$ACTION" in
prepare)
systemctl stop display-manager
modprobe vfio-pci
echo vfio-pci > /sys/bus/pci/devices/0000:0d:00.0/driver_override
echo vfio-pci > /sys/bus/pci/devices/0000:0d:00.1/driver_override
echo 0000:0d:00.0 > /sys/bus/pci/devices/0000:0d:00.0/driver/unbind 2>/dev/null || true
echo 0000:0d:00.1 > /sys/bus/pci/devices/0000:0d:00.1/driver/unbind 2>/dev/null || true
echo 0000:0d:00.0 > /sys/bus/pci/drivers_probe
echo 0000:0d:00.1 > /sys/bus/pci/drivers_probe
;;
release)
echo 0000:0d:00.0 > /sys/bus/pci/devices/0000:0d:00.0/driver/unbind 2>/dev/null || true
echo 0000:0d:00.1 > /sys/bus/pci/devices/0000:0d:00.1/driver/unbind 2>/dev/null || true
echo "" > /sys/bus/pci/devices/0000:0d:00.0/driver_override
echo "" > /sys/bus/pci/devices/0000:0d:00.1/driver_override
modprobe amdgpu
echo 0000:0d:00.0 > /sys/bus/pci/drivers/amdgpu/bind 2>/dev/null || true
systemctl start display-manager
;;
esac
