Compiling a kernel for QEMU with graphics support
This repository shows you how to cross-compile(on amd64) an arm64/aarch64 Kernel for QEMU with graphics support
1.) We install dependencies:
apt update -y && apt install -y git bc bison flex libssl-dev make libc6-dev libncurses5-dev crossbuild-essential-arm64
git clone --depth=1 https://github.com/torvalds/linux
cd linux
3.) We make a standard defconfig for arm64
yes "" | make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- defconfig
4.) We configure it to support a graphical QEMU boot with:
scripts/config -e CONFIG_MACVLAN
scripts/config -e CONFIG_VIRTIO_NET
scripts/config -e CONFIG_NLMON
scripts/config -d CONFIG_VT_HW_CONSOLE_BINDING
scripts/config -e CONFIG_SERIAL_AMBA_PL011
scripts/config -e CONFIG_SERIAL_AMBA_PL011_CONSOLE
scripts/config -e CONFIG_VIRTIO_CONSOLE
scripts/config -e CONFIG_HW_RANDOM
scripts/config -e CONFIG_HW_RANDOM_VIRTIO
scripts/config -e CONFIG_DRM
scripts/config -e CONFIG_DRM_VIRTIO_GPU
scripts/config -e CONFIG_RTC_CLASS
scripts/config -e CONFIG_RTC_DRV_PL031
scripts/config -e CONFIG_VIRTIO_PCI
scripts/config -e CONFIG_VIRTIO_MMIO
scripts/config -e CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES
scripts/config -e CONFIG_MAILBOX
scripts/config -e CONFIG_AHCI
scripts/config -e CONFIG_PCIEPORT
scripts/config -e CONFIG_VIRTIO_INPUT
scripts/config -e CONFIG_VIRT_DRIVERS
scripts/config -e CONFIG_VIRTIO_MEM
5.) We cross-compile the Kernel for arm64 on a AMD64-Machine
yes "" | make -j ${CPUS} ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- Image.gz
This kernel supports QEMU's graphic card provided by:
qemu-system-aarch64 -m virt \
-kernel arch/arm64/boot/Image.gz \
-append "root=/dev/vda1 rw" \
-initrd YOUR_INITRD_IMAGE \
-cpu cortex-a76 \
-drive if=none,file=YOUR_ROOTFS_IMAGE,format=raw,id=disk
-device virtio-blk-device,drive=disk \
-device virtio-gpu-pci \
-display gtk,gl=on,show-cursor=on \
-device virtio-mouse-pci \
-device virtio-keyboard-pci \
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