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Questions tagged [qemu]

QEMU is a generic and open source machine emulator and virtualizer

QEMU is a generic and open source machine emulator and virtualizer.

When used as a machine emulator, QEMU can run OSes and programs made for one machine (e.g. an ARM board) on a different machine (e.g. your own PC). By using dynamic translation, it achieves very good performance.

When used as a virtualizer, QEMU achieves near native performances by executing the guest code directly on the host CPU. QEMU supports virtualization when executing under the Xen hypervisor or using the KVM kernel module in Linux. When using KVM, QEMU can virtualize x86, server and embedded PowerPC, and S390 guests.

References:

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Qemu fails to create socket

In my ubuntu22.04.xml configuration I have: The socket will be created by Qemu, so just check permissions: $ ls…
Ken Y-N
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Boot images qemu on pnet

I hope you're good I import image qemus in pnet but when I started one of the qemu, I confront this problem please help me to solve this issue 1-I import switch viosl2-adventerprisek9-m-15.2-2017032 2-I ticked the option for virtualization for…
keyvan mokhtari
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Zerofree in Amazon Linux 2

I'm going to preface this, that I'm trying to work within the confines of our current eco-system (ie: trying to ONLY use AL2). We have a very specific use-case in which we are converting a vmdk that gets generated from an AMI and gets downloaded to…
raithedavion
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QEMU GPIO connect

i have been studying some QEMU source code, in particular bcm2835_gpio.c, where it uses a qdev_init_gpio_out function to initialize some output GPIOs, and then store the qemu_irq in an array. Then, in gpclr and gpset func it uses…
Angel Ruiz
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QEMU: No graphics after trying to start from terminal

I tried to turn on the virtual machine from the console for the first time, as the guide I was following suggested using sudo virsh start webdev, whereas I have always just used the QEMU interface. However, ssh didn't work and nothing showed up in…
adamlaughlin
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vsomeip - how to discover service in QEMU-QNX guest from Ubuntu host?

I am running vsomeip service example from the Wiki page "https://github.com/COVESA/vsomeip/wiki/vsomeip-in-10-minutes#devices" inside virtual QNX guest on QEMU. Bridge networking is enabled using TAP interface. The ifup script used is as…
kingvittu
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Trying to run a simple bootloader in qemu

I am trying to run a simple bootloader with a dummy kernel in qemu, the bootloader seems to work fine, I get no errors running qemu or commands compiling it, just a warning from qemu that probing guessed raw. My boot loader is : [org 0x7c00] [bits…
kwphil
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Running an x86_64 File on aarch64 not working

I have been searching and trying a lot of things for a while now. Setup: Kali Linux as Virtiual Maschine using UTM on MAC M2 uname -a Linux kali 6.1.0-kali9-arm64 #1 SMP Debian 6.1.27-1kali1 (2023-05-12) aarch64 GNU/Linux Want to execute a file…
lisa
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How can I properly add a new custom device to QEMU?

I have to write and add a custom device to QEMU, it's a crypto accelerator core. The device is then to be simulated for Linux using the RISC-V ISA. I have implemented the cryptographic algorithm inside a custom QEMU device in C using the QEMU object…
Shahab
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Arm Cortex-a9 timer triggered IRQ not clearing

I'm running a baremetal application in Qemu on a xilinx-zynq-a9 machine. I'm trying to leverage the private timer interrupt but am running into issues with the interrupt re-triggering when I don't think it should be. I successfully enable the…
i_am_human_probably
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fio test tool's option runtime has no effect

I run a docker container in my server, and then I run qemu in this container. Firstly, I don't open the option enable-kvm in qemu, and the fio runtime option works. I set runtime=30 and the fio test last at most 30s. But when I open the option…
杨叶轩
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QEMU and LIBVIRT on MacOS M1/M2

I'm trying to get VirtManager/virsh to see VMs created by Vagrant but no joy so far... I have installed qemu and libvirt via brew. Here is the Vagrantfile: Vagrant.configure("2") do |config| # Define the VM box and provider config.vm.box =…
stefletcher
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Is it possible to get a resolution greater than 1920x1200 on openbsd in qemu ( virt-manager)?

How to increase screen resolution in openbsd if it possible? It is necessary to have a resolution such as 2k or 4k. Tried virtio, qxl there is even smaller than in VGA, checked the maximum resolution with xrandr and tried customizing the resolution…
daswer
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How are memory addresses translated in QEMU

Im trying to understand how memory works inside a virtual machine, QEMU in particular. I see there are virtual memory, used in a context by CPU and a physical memory, the actual RAM memory. But i dont understand some concepts here, is physical…
Angel Ruiz
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Buildroot package override but no image generated

I'm facing an issue to get the final image for qemu. In order to accelerate my dev I'm using override (PACKAGENAME_OVERRIDE_SRCDIR =/path/to/local with PACKAGENAME-rebuild, I see it takes the new changes from the local_repo because I am able to see…
Johnz
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