diff options
Diffstat (limited to 'nixpkgs/nixos/modules/virtualisation/qemu-vm.nix')
| -rw-r--r-- | nixpkgs/nixos/modules/virtualisation/qemu-vm.nix | 39 |
1 files changed, 29 insertions, 10 deletions
diff --git a/nixpkgs/nixos/modules/virtualisation/qemu-vm.nix b/nixpkgs/nixos/modules/virtualisation/qemu-vm.nix index 3d7f3ccb62f8..55a214325118 100644 --- a/nixpkgs/nixos/modules/virtualisation/qemu-vm.nix +++ b/nixpkgs/nixos/modules/virtualisation/qemu-vm.nix @@ -701,7 +701,10 @@ in type = types.listOf types.str; default = []; example = [ "-vga std" ]; - description = lib.mdDoc "Options passed to QEMU."; + description = lib.mdDoc '' + Options passed to QEMU. + See [QEMU User Documentation](https://www.qemu.org/docs/master/system/qemu-manpage) for a complete list. + ''; }; consoles = mkOption { @@ -732,9 +735,10 @@ in description = lib.mdDoc '' Networking-related command-line options that should be passed to qemu. The default is to use userspace networking (SLiRP). + See the [QEMU Wiki on Networking](https://wiki.qemu.org/Documentation/Networking) for details. If you override this option, be advised to keep - ''${QEMU_NET_OPTS:+,$QEMU_NET_OPTS} (as seen in the example) + `''${QEMU_NET_OPTS:+,$QEMU_NET_OPTS}` (as seen in the example) to keep the default runtime behaviour. ''; }; @@ -809,14 +813,19 @@ in defaultText = "!cfg.useBootLoader"; description = lib.mdDoc '' - If enabled, the virtual machine will boot directly into the kernel instead of through a bootloader. Other relevant parameters such as the initrd are also passed to QEMU. + If enabled, the virtual machine will boot directly into the kernel instead of through a bootloader. + Read more about this feature in the [QEMU documentation on Direct Linux Boot](https://qemu-project.gitlab.io/qemu/system/linuxboot.html) + This is enabled by default. If you want to test netboot, consider disabling this option. + Enable a bootloader with {option}`virtualisation.useBootLoader` if you need. - This will not boot / reboot correctly into a system that has switched to a different configuration on disk. + Relevant parameters such as those set in `boot.initrd` and `boot.kernelParams` are also passed to QEMU. + Additional parameters can be supplied on invocation through the environment variable `$QEMU_KERNEL_PARAMS`. + They are added to the `-append` option, see [QEMU User Documentation](https://www.qemu.org/docs/master/system/qemu-manpage) for details + For example, to let QEMU use the parent terminal as the serial console, set `QEMU_KERNEL_PARAMS="console=ttyS0"`. - This is enabled by default if you don't enable bootloaders, but you can still enable a bootloader if you need. - Read more about this feature: <https://qemu-project.gitlab.io/qemu/system/linuxboot.html>. + This will not (re-)boot correctly into a system that has switched to a different configuration on disk. ''; }; initrd = @@ -846,6 +855,8 @@ in If disabled, the kernel and initrd are directly booted, forgoing any bootloader. + + Check the documentation on {option}`virtualisation.directBoot.enable` for details. ''; }; @@ -1066,10 +1077,18 @@ in ''} ''; - systemd.tmpfiles.rules = lib.mkIf config.boot.initrd.systemd.enable [ - "f /etc/NIXOS 0644 root root -" - "d /boot 0644 root root -" - ]; + systemd.tmpfiles.settings."10-qemu-vm" = lib.mkIf config.boot.initrd.systemd.enable { + "/etc/NIXOS".f = { + mode = "0644"; + user = "root"; + group = "root"; + }; + "${config.boot.loader.efi.efiSysMountPoint}".d = { + mode = "0644"; + user = "root"; + group = "root"; + }; + }; # After booting, register the closure of the paths in # `virtualisation.additionalPaths' in the Nix database in the VM. This |