Fixes building under MacOS Big Sur and Xcode 12

[vitorpy]

This PR fixes building under MacOS Big Sur and Xcode 12.

[alexanderniebuhr]

@vitorpy awesome work. 👍

I had to disable code signing to make it run in terminal see #191 However I am currently not able to get my script started:

#!/bin/bash

KERNEL="vmlinuz"
INITRD="initrd.img"
CMDLINE="earlyprintk=serial console=ttyS0 acpi=off sshd=1"

MEM="-m 1G"
NET="-s 2:0,virtio-net"
IMG_CD="-s 3,ahci-cd,/Users/alexanderniebuhr/Downloads/CentOS-7-x86_64-Minimal-2003.iso"
IMG_HDD="-s 4,virtio-blk,hdd.img"
PCI_DEV="-s 0:0,hostbridge -s 31,lpc"
LPC_DEV="-l com1,stdio"

xhyve $MEM $SMP $PCI_DEV $LPC_DEV $NET $IMG_CD $IMG_HDD -f kexec,$KERNEL,$INITRD,"$CMDLINE"

🕙[ 07:41:48 ] ❯ sudo ./install_centos.sh
Password:
vmx_set_ctlreg: cap_field: 2 bit: 20 unspecified don't care
vmx_init: processor does not support desired secondary processor-based controls
Unable to create VM (22)

Did you experienced something similar? Or does anyone have an idea how to fix this with macOS 11.0 Beta (20A5323l) and Xcode 12.0 beta 3 (12A8169g)

[DiegoMagdaleno]

@alexanderniebuhr I am also experiencing the same issue

❯ ./xhyverun-tinycorelinux.sh
vmx_set_ctlreg: cap_field: 2 bit: 14 unspecified don't care
vmx_init: processor does not support desired secondary processor-based controls
Unable to create VM (22)