![]() ![]() `-bios /usr/share/edk2.git/ovmf-圆4/OVMF_CODE-pure-efi.fd \` I also had to configure qemu to remove the standard vga output, because that would lead to the gpu not being used properly. (I am aware there is no operating system being loaded to the vm, I just am trying to get the uefi bios to display first)Įverything is working now, I had to flash a uefi compatable vbios to my gpu using nvflash. GTX660.rom came from techpowerup and was ran through a version of NVIDIA BIOS Patcher (a slightly modified version I found in a PR that added support for bios' for my graphics card) device vfio-pci,host=01:00.0,x-vga=on,multifunction=on,romfile=GTX660.rom \ bios /usr/share/edk2.git/ovmf-圆4/OVMF_CODE-pure-efi.fd \ Memory at df080000 (32-bit, non-prefetchable) I am hoping for some kind of explanation about what causes qemu to hang without any output to the terminal (and with a blank Qemu window). I have also tried a whole host of other combinations, most of which hang without printing any output. Memory at d8000000 (64-bit, prefetchable) Įxpansion ROM at df000000 Ġ1:00.1 Audio device : NVIDIA Corporation GK106 HDMI Audio Controller (rev a1)įlags: bus master, fast devsel, latency 0, IRQ 11, IOMMU group 1 Which I believe should emulate a Raspberry Pi 3, but it hangs without printing any output at all. Memory at d0000000 (64-bit, prefetchable) Memory at de000000 (32-bit, non-prefetchable) Subsystem: NVIDIA Corporation Device įlags: fast devsel, IRQ 10, IOMMU group 1 I do have two monitors, but as stated above, the one connected to the GPU never recieves a signal.ĬPU: Intel i3-6100 (using onboard graphics for host)Ġ1:00.0 VGA compatible controller : NVIDIA Corporation GK106 (rev a1) (prog-if 00 ) I will try to update with more info if I am missing anything important. Generating flash0.img on Jammy when emulating Jammy with the cloud image of Jammy may help.I am a newbie to the world of VFIO and GPU Passthrough, and am getting stuck on actually getting the GPU to display output from my VM. For example, if you generated flash0.img on Focal but want to emulate Jammy with the cloud image of Jammy, the firmware is not fully compatible. ![]() If such thing happens to you, align your host and guest release version may help. You may generate it by the following command: In the above command, we use randmac as a variable of mac address. x86 host) $ sudo qemu-system-aarch64 -m 1024 -cpu cortex-a57 -M virt -nographic -pflash /usr/share/AAVMF/AAVMF_CODE.fd -pflash flash1.img -drive if=none,file=jammy-server-cloudimg-arm64.img,id=hd0 -device virtio-blk-device,drive=hd0 -netdev type=tap,id=net0 -device virtio-net-device,netdev=net0,mac=$randmac Additionally, you must use a 15.10 (wily) or newer cloud image for guests. Note: For GICv3 systems, such as Cavium ThunderX, you must use QEMU from Ubuntu 16.04 or newer, and pass "-M virt,gic-version=3". For accelerated VMs (arm64 host w/ KVM support) $ sudo qemu-system-aarch64 -enable-kvm -m 1024 -cpu host -M virt -nographic -pflash /usr/share/AAVMF/AAVMF_CODE.fd -pflash flash1.img -drive if=none,file=jammy-server-cloudimg-arm64.img,id=hd0 -device virtio-blk-device,drive=hd0 -netdev type=tap,id=net0 -device virtio-net-device,netdev=net0,mac=$randmac.Now you should be able to boot/ into a -arm64.img type cloud image. Install QEMU and the EFI image for QEMU: $ sudo apt-get install qemu-system-arm qemu-efi 1.Create a VM-specific flash volume for storing NVRAM variables: $ cp /usr/share/AAVMF/AAVMF_CODE.fd flash1.img. ![]() Note: this requires Ubuntu 20.04 or greater Getting the bits It is possible to boot directly into Linux instead. I've chosen to describe a UEFI-based system here so I can make use of the kernel on the guest's disk image. on an x86 host) or, accelerated w/ KVM if you have an arm64 host. You can either do this fully emulated (e.g. Ubuntu/arm64 can run inside the QEMU emulator. ![]()
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