Quick and Dirty KVM

Quick KVM prep with PopOS 20.04
ASUS X399
64GB
AMD Treadripper 1650x

sudo dmesg | grep AMD-Vi

[    0.500525] AMD-Vi: Interrupt remapping enabled
[    0.500525] AMD-Vi: Virtual APIC enabled
[    0.500688] AMD-Vi: Lazy IO/TLB flushing enable

motherboard BIOSes can be buggy.  The virtualization was enabled in my BIOS, but I had to turn it ON and OFF
to get it to work again. Very rare, I'm not sure what caused it. So always check before proceeding.

PopOS doesn't use the standard /etc/grub file arg entries

so the following enabled

kernelstub -a amd_iommu=on OR intel_iommu
kernelstub video=vesafb:off,efifb:off  (Only for)

/etc/modules-load.d
vfio-pci.conf
 vfio-pci

/etc/modprobe.d
blacklist.conf
 blacklist snd_hda_intel
 blacklist nouveau
 blacklist amdgpu

vfio.conf
 options vfio-pci ids=10de:1c82,10de:0fb9,1002:67ff,1002:aae0,10de:1e87,10de:10f8,10de:1ad8,10de:1ad9

sudo update-initramfs -uv   (reboot after)

# The Device Numers Obtained from
#  lspci -nnk | grep -E "1050|2080|560"

(Showing only first output for AMD rx 560 the info can be obtained from first line towards the end)

09:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP107 [GeForce GTX 1050 Ti] [10de:1c82] (rev a1)
        Subsystem: eVga.com. Corp. GP107 [GeForce GTX 1050 Ti] [3842:6253]
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PLEASE KEEP YOUR KVM stuff. Linux is stable in general, but quirks do happen.
So I highly recommend - if using disk images, a separate partition.

I passthrough my Win10 physical disk, without issues. I can boot back into baremetal Win10 and back to Qemu Win10
with NO issues.

Shortcomings. Make sure USB Power Management in the guest is enabled.
Video Power Management (ie Time to turn off screen) OFF.  If possible, make sure to cleanly close your guest (aka powerdown from host)

Cool Things. I have 16 cores and I run all 3 VMs with 16 cores simultaneously.  Its not CRAZY, its meant for this
and it works well. Can two separate VM users game, yes and it is just as smooth as bare-metal.

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