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Qemu system emulation4/28/2023 ![]() ![]() The above runs a 32-bit kernel, if you were already running 64-bit Raspbian use the arm64 kernel instead and replace qemu-system-arm with qemu-system-aarch64. netdev tap,id=net0,ifname=tap0,script=no,downscript=no \ In QEMU, optional CPU features have corresponding boolean CPU proprieties that, when enabled, indicate that the feature is implemented, and, conversely, when disabled, indicate that it is not implemented. device virtio-scsi-device -device scsi-hd,drive=hd \ drive file=/rpi/root.img,format=raw,id=hd,if=none,media=disk \ The QEMU PC System emulator simulates the following peripherals: i440FX. Qemu is a machine emulator that can run operating systems and programs for one machine on. I recently made a QEMU/KVM (q35) Windows 10 virtual machine on a Debian 9 host. Sudo dpkg -install linux-image-5.10.0-21-armmp-lpae_5.10.162-1_bĬopy out the kernel and initrd from /boot to the host, then run QEMU with something like this: qemu-system-arm \ You can safely delete all of them except for qemu-system-i386. First install a virtualization-capable kernel, Raspian doesn't provide one but the regular Debian ARM distro does: wget Getting it running is a bit more work but in the end not too complicated (more instructions here). It also supports arbitrary CPU counts and memory sizes. 64-bit is backwards compatible with 32-bit programs, so you can still use qemu-system-aarch64 to run a 32-bit OS if you wish, just like on the real hardware. Since the Pi 3 and later have 64-bit CPUs, you need to use qemu-system-aarch64 instead. I've had better success using the virt model which emulates a generic ARM system, but uses virtualization, rather than device emulation, which leads to lower CPU utilization on the host and much better I/O performance. qemu-system-arm only emulates 32-bit CPUs, which is why it only supports up to the Pi 2. It's also locked to 4 CPUs and 1 GB of memory. While the raspi3b model works well, it is quite inefficient and its network speeds are really low because it emulates the USB-Ethernet adapter.
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