Exposing AVX2 and AVX512 to OS X on Skylake-X

[mikezelt]

Hello everyone

 

I recently setup Mojave on a QEMU host on Skylake-X and I cannot find a way to expose AVX2 and AVX512 to the guest OS X using Penryn CPU model.

 

sysctl -a | grep avx

hw.optional.avx1_0: 1

hw.optional.avx2_0: 0

hw.optional.avx512f: 0

hw.optional.avx512cd: 0

hw.optional.avx512dq: 0

hw.optional.avx512bw: 0

hw.optional.avx512vl: 0

hw.optional.avx512ifma: 0

hw.optional.avx512vbmi: 0

 

I have tried passing the arguments in qemu command line but did not work. I also tried changing Fake CPU ID as per the below but then clover would not boot.

 

https://github.com/kholia/OSX-KVM/blob/master/notes.md

 

Any suggestions?

 

Many thanks

Edited July 7, 2019 by mikezelt