Opencore Configuration of KVM Hackintosh with tweaks.
We propose best practice for KVM users.
See more in libvirt.xml.
Comparing with normal hackintosh setup, we have only limited choices here(because we don't have an iGPU).
You have three options to choose: Penryn, Passthrough, Emulating Model.
Penryn is the safest choice in Hackintosh VM, it is classic, similar with virtualized enviroment, and Apple wrote native code to support it. But we should do something to make it work more than that:
sysctl -a|grep machdep.cpu.leaf7_features
to see whether AVX/AVX2 is included.If you are using most recent generation Intel CPU(newer than Penryn), then you can just passthrough your cpu type with mode='host-passthrough'
.
You can passthrough amd process too, but with AMD-Vanilla patches like bare metal hackintosh.
If you wanna assign an irregular topology (like 3-cores/6-threads or 5-cores/5-threads), you should fake a topology, otherwise you will get a kernel panic. Details can be found here.
<!-- Example cpu topology defination with 3-cores/6-threads -->
<vcpu placement='static' current='6'>8</vcpu>
<vcpus>
<vcpu id='0' enabled='yes' hotpluggable='no' order='1'/>
<vcpu id='1' enabled='yes' hotpluggable='yes' order='2'/>
<vcpu id='2' enabled='yes' hotpluggable='yes' order='3'/>
<vcpu id='3' enabled='yes' hotpluggable='yes' order='4'/>
<vcpu id='4' enabled='yes' hotpluggable='yes' order='5'/>
<vcpu id='5' enabled='yes' hotpluggable='yes' order='6'/>
<!-- Fake two cores but disabled. -->
<vcpu id='6' enabled='no' hotpluggable='yes'/>
<vcpu id='7' enabled='no' hotpluggable='yes'/>
</vcpus>
<cputune>
<vcpupin vcpu='0' cpuset='6'/>
<vcpupin vcpu='1' cpuset='14'/>
<vcpupin vcpu='2' cpuset='7'/>
<vcpupin vcpu='3' cpuset='15'/>
<vcpupin vcpu='4' cpuset='5'/>
<vcpupin vcpu='5' cpuset='13'/>
</cputune>
<cpu mode='host-passthrough' check='none'>
<topology sockets='1' cores='4' threads='2'/>
</cpu>
If you find unknown cpu model in you system info, you can change it by specify the ProcessorType in SMBios Section of config.plist. Choices can be found in here.
Example, if you have or emulate a skylake-server processor, you can use 0x0F01(Xeon-W):
// <0F01> 08 cores Intel Xeon W Intel Xeon W
// <0F01> 10 cores Intel Xeon W Intel Xeon W
// <0F01> 14 cores Intel Xeon W Intel Xeon W
// <0F01> 18 cores Intel Xeon W Intel Xeon W
Notes, the cores should be matched too, or you can fake some disable cores to match the topology. Then you can specify 3841(0x0F01 in decimal) in ProcessorType section.
GPU passthrough is a good way to gain smooth experience in MacOS.If you do so, make sure you doing things right. You have to make sure you put the gfx and graphic audio in the same bus but different function, otherwise DP/HDMI audio, Metal Support, HW Accuration won't work.
<!-- Assume we have a graphic(gfx(0x2d/0x0) and audio(0x2d/0x1)) -->
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x2d' slot='0x00' function='0x0'/>
</source>
<!-- we put gfx under bus 0x01 and function 0x0, also with multifunction on. -->
<address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0' multifunction='on'/>
</hostdev>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x2d' slot='0x00' function='0x1'/>
</source>
<!-- we put graphic audio under the same bus 0x01 with gfx but different function 0x1-->
<address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x1'/>
</hostdev>
If you did it right, then there is no much differeces between VM and normal setup procedure, just adding Lilu/WEG/AppleALC then the Metal/H264/H265 HW/HDMI Audio will work well in most case.
We use EHC/UHC from qemu now(XHCI(nec/qemu) can't be recognized by MacOS now). USB port mapping(EHC) and USB Power injection(with fake EC ioreg) are already included in config.plist.
see issues.