start3.sh

#!/bin/bash

# this starts an OSX High Sierra VM. Highly optimized setup with GPU and USB controller passthrough.
# Everything works great except the sound. 

#virsh nodedev-list | grep pci
virsh nodedev-detach pci_0000_00_14_0

MY_OPTIONS="+aes,+xsave,+avx,+xsaveopt,avx2,+smep"

taskset -c 0-3 qemu-system-x86_64\
		-enable-kvm\
		-m 8G\
 		-mem-path /dev/hugepages\
 		-mem-prealloc\
 		-balloon none\
		-cpu Penryn,kvm=off,vendor=GenuineIntel,+invtsc,vmware-cpuid-freq=on,$MY_OPTIONS,hv_vendor_id=123456789ab \
	  	-machine pc-q35-2.10 \
		-boot order=c\
	  	-smp 4,cores=2 \
		-vcpu vcpunum=0,affinity=1 -vcpu vcpunum=1,affinity=5\
		-vcpu vcpunum=2,affinity=2 -vcpu vcpunum=3,affinity=6\
	  	-drive if=pflash,format=raw,readonly,file=OVMF_CODE-pure-efi.fd \
	  	-drive if=pflash,format=raw,file=OVMF_VARS-pure-efi-1024x768.fd \
	  	-device vfio-pci,host=01:00.0,bus=pcie.0,multifunction=on \
	  	-device vfio-pci,host=01:00.1,bus=pcie.0 \
		-device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e\
		-device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0\
		-device vfio-pci,host=00:14.0,id=hostdev0,bus=pci.2,addr=0x3\
	  	-usb -device usb-kbd -device usb-tablet \
	  	-device isa-applesmc,osk="ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc" \
	  	-smbios type=2 \
	  	-device ide-drive,bus=ide.2,drive=MacHDD \
	  	-drive id=MacHDD,if=none,file=./hdd.img,format=qcow2 \
	  	-device ide-drive,bus=ide.1,drive=Clover \
	  	-drive id=Clover,if=none,snapshot=on,format=qcow2,file=./'Clover.qcow2' \
          	-netdev bridge,id=net0,br=br_vms,"helper=/usr/lib/qemu/qemu-bridge-helper"\
	  	-device e1000-82545em,netdev=net0,id=net0,mac=52:54:00:c9:18:27 \
	  	-monitor stdio

virsh nodedev-reattach pci_0000_00_14_0 

		#-rtc clock=host,base=utc,driftfix=none\
		#-usb \
		#-device usb-host,bus=usb-bus.0,vendorid=0x2516,productid=0x001a\
		#-device usb-host,bus=usb-bus.0,vendorid=0x046d,productid=0xc24a\
		#-device usb-ehci,id=ehci\
		#-device usb-host,bus=ehci.0,vendorid=0x194f,productid=0x0101\