i use seabios.
ovmf gives me troubles.
i use amd threadripper cpu.


On 10/25/20 7:32 AM, Ivan Volosyuk wrote:
Interesting. I never passed the rom option to my 2080 ti and it works
fine with windows 10. In January 2020 I was using qemu-4.0, since then
I swapped a few versions of qemu till 5.1 and it works fine without
the rom option. I use intel CPUs though. I wonder if that's the
difference.
I use edk2-ovmf though. I wasn't able to get it to work with seabios.

On Sun, Oct 25, 2020 at 8:59 PM Roger Lawhorn <r...@twc.com> wrote:
I tried pushing off my rtx 2080 to windows 10.
Kept getting code 43.

I added hv_time,kvm=off,hv_vendor_id=null  to my -cpu line and it fixed the 
issue.
Just in case someone else has this issue.
I also had to download a rom file that matched my video card.
QEMU cannot get past the option rom execution without the rom file.


Here is my code:

qemu4.0-system-x86_64 -machine type=q35,accel=kvm -cpu 
EPYC,hv_time,kvm=off,hv_vendor_id=null \
-chardev stdio,id=seabios -device isa-debugcon,iobase=0x402,chardev=seabios \
-smp $1,sockets=1,cores=$1 \
-global q35-pcihost.pci-hole64-size=11G \
-bios /usr/share/seabios/bios.bin \
-m 32G \
-vga none \
-soundhw hda \
-mem-prealloc \
-rtc clock=host,base=localtime \
-device 
ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 \
-device 
vfio-pci,host=0a:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on,romfile=/media/dad/QEMU-SSD/qemu-wd/rtx.rom




Where I got my rom file:
https://www.techpowerup.com/vgabios/204970/palit-rtx2080ti-11264-180919


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