I was given a BIOS to test Resizable BAR, L3.52.
I have CSM disabled, Above 4G-decoding enabled, SR-IOV enabled, Resizable BAR enabled.
It works when booting bare-metal, but I'm not able to get it to work in KVM/QEMU, the card doesn't initialize and I get blank screen. The host shows the card as well as nvidia-smi tool, but VM won't boot.
Same VM boots fine when I turn off Resizable BAR, all other BIOS settings are untouched.
If anyone is interested in testing, feel free to contact William Lee from ASRock,