89 lines
2.1 KiB
Nix
89 lines
2.1 KiB
Nix
{ config, lib, pkgs, modulesPath, ... }:
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# Contains the configuration to make a VM bootable with qemu.
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{
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imports = [
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"${modulesPath}/virtualisation/qemu-vm.nix"
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];
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# Enable ssh on boot
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services.openssh.enable = true;
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boot = {
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kernelParams = [
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"console=tty1"
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"console=ttyS0,115200"
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"boot.shell_on_fail"
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];
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consoleLogLevel = lib.mkDefault 7;
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initrd.kernelModules = [
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"virtio_pci"
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"virtio_blk"
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"virtio_input"
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"9pnet"
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"9pnet_virtio"
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];
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kernelPatches = [ {
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name = "qemu";
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patch = null;
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extraConfig = ''
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# For qemu
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BLOCK y
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BLK_DEV y
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DEVTMPFS y
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VIRTIO_MENU y
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VIRTIO_BLK y
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VIRTIO_NET y
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EXT4_FS y
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# For 9P: https://wiki.qemu.org/Documentation/9psetup
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NET_9P y
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NET_9P_VIRTIO y
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NET_9P_DEBUG y
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NET_DEVICES y
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NET_CORE y
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INET y
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NETWORK_FILESYSTEMS y
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OVERLAY_FS y
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"9P_FS" y
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"9P_FS_POSIX_ACL" y
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PCI y
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VIRTIO_PCI y
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PCI_HOST_GENERIC y
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'';
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} ];
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loader = {
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grub.enable = false;
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generic-extlinux-compatible.enable = true;
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};
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};
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nixpkgs.overlays = [
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(final: prev: {
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qemu = prev.qemu.override { rutabagaSupport = false; };
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uboot-custom = prev.ubootQemuRiscv64Smode.override {
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# Override preboot to set 'bootcmd' directly to the kernel address in RAM
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extraConfig = ''
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CONFIG_PREBOOT="setenv fdt_addr ''${fdtcontroladdr}; fdt addr ''${fdtcontroladdr}; setenv bootcmd booti ''${kernel_addr_r} - ''${fdtcontroladdr};"
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CONFIG_RISCV_ISA_C=n
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'';
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# Also include debug u-boot
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filesToInstall = ["u-boot.bin" "u-boot"];
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};
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opensbi-uboot = prev.opensbi.overrideAttrs (old: {
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makeFlags = old.makeFlags ++ [
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# Build OpenSBI without compressed instructions
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"PLATFORM_RISCV_ISA=rv64g"
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# Check with: riscv64-unknown-elf-objdump -d -M no-aliases rotate
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"FW_PAYLOAD_PATH=${final.uboot-custom}/u-boot.bin"
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];
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});
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})
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];
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}
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