vms: move qemu_command to its own module
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This commit is contained in:
Jörg Thalheim 2024-02-15 17:25:24 +01:00
parent 8e780b2a8c
commit 0200016dd2
2 changed files with 133 additions and 128 deletions

View File

@ -0,0 +1,132 @@
import random
from dataclasses import dataclass
from pathlib import Path
from .inspect import VmConfig
@dataclass
class GraphicOptions:
args: list[str]
vsock_cid: int | None = None
def graphics_options(vm: VmConfig) -> GraphicOptions:
common = [
"-audio",
"driver=pa,model=virtio",
]
if vm.waypipe:
# FIXME: check for collisions
cid = random.randint(1, 2**32)
# fmt: off
return GraphicOptions([
*common,
"-nographic",
"-vga", "none",
"-device", f"vhost-vsock-pci,id=vhost-vsock-pci0,guest-cid={cid}",
# TODO: vgpu
#"-display", "egl-headless,gl=core",
#"-device", "virtio-vga,blob=true",
#"-device", "virtio-serial-pci",
#"-device", "vhost-user-vga,chardev=vgpu",
#"-chardev", "socket,id=vgpu,path=/tmp/vgpu.sock",
], cid)
# fmt: on
else:
# fmt: off
return GraphicOptions([
*common,
"-vga", "none",
"-display", "gtk,gl=on",
"-device", "virtio-gpu-gl",
"-display", "spice-app,gl=on",
"-device", "virtio-serial-pci",
"-chardev", "spicevmc,id=vdagent0,name=vdagent",
"-device", "virtserialport,chardev=vdagent0,name=com.redhat.spice.0",
"-device", "qemu-xhci,id=spicepass",
"-chardev", "spicevmc,id=usbredirchardev1,name=usbredir",
"-device", "usb-redir,chardev=usbredirchardev1,id=usbredirdev1",
"-chardev", "spicevmc,id=usbredirchardev2,name=usbredir",
"-device", "usb-redir,chardev=usbredirchardev2,id=usbredirdev2",
"-chardev", "spicevmc,id=usbredirchardev3,name=usbredir",
"-device", "usb-redir,chardev=usbredirchardev3,id=usbredirdev3",
"-device", "pci-ohci,id=smartpass",
"-device", "usb-ccid",
"-chardev", "spicevmc,id=ccid,name=smartcard",
], None)
# fmt: on
@dataclass
class QemuCommand:
args: list[str]
vsock_cid: int | None = None
def qemu_command(
vm: VmConfig,
nixos_config: dict[str, str],
secrets_dir: Path,
rootfs_img: Path,
state_img: Path,
virtiofsd_socket: Path,
qmp_socket_file: Path,
qga_socket_file: Path,
) -> QemuCommand:
kernel_cmdline = [
(Path(nixos_config["toplevel"]) / "kernel-params").read_text(),
f'init={nixos_config["toplevel"]}/init',
f'regInfo={nixos_config["regInfo"]}/registration',
"console=hvc0",
]
if not vm.waypipe:
kernel_cmdline.append("console=tty0")
# fmt: off
command = [
"qemu-kvm",
"-name", vm.machine_name,
"-m", f'{nixos_config["memorySize"]}M',
"-object", f"memory-backend-memfd,id=mem,size={nixos_config['memorySize']}M",
"-machine", "pc,memory-backend=mem,accel=kvm",
"-smp", str(nixos_config["cores"]),
"-cpu", "max",
"-enable-kvm",
# speed-up boot by not waiting for the boot menu
"-boot", "menu=off,strict=on",
"-device", "virtio-rng-pci",
"-netdev", "user,id=user.0",
"-device", "virtio-net-pci,netdev=user.0,romfile=",
"-chardev", f"socket,id=char1,path={virtiofsd_socket}",
"-device", "vhost-user-fs-pci,chardev=char1,tag=nix-store",
"-virtfs", f"local,path={secrets_dir},security_model=none,mount_tag=secrets",
"-drive", f"cache=writeback,file={rootfs_img},format=qcow2,id=drive1,if=none,index=1,werror=report",
"-device", "virtio-blk-pci,bootindex=1,drive=drive1,serial=root",
"-drive", f"cache=writeback,file={state_img},format=qcow2,id=state,if=none,index=2,werror=report",
"-device", "virtio-blk-pci,drive=state",
"-device", "virtio-keyboard",
"-usb", "-device", "usb-tablet,bus=usb-bus.0",
"-kernel", f'{nixos_config["toplevel"]}/kernel',
"-initrd", nixos_config["initrd"],
"-append", " ".join(kernel_cmdline),
# qmp & qga setup
"-qmp", f"unix:{qmp_socket_file},server,wait=off",
"-chardev", f"socket,path={qga_socket_file},server=on,wait=off,id=qga0",
"-device", "virtio-serial",
"-device", "virtserialport,chardev=qga0,name=org.qemu.guest_agent.0",
"-serial", "null",
"-chardev", "stdio,mux=on,id=char0,signal=off",
"-mon", "chardev=char0,mode=readline",
"-device", "virtconsole,chardev=char0,nr=0",
] # fmt: on
vsock_cid = None
if vm.graphics:
opts = graphics_options(vm)
vsock_cid = opts.vsock_cid
command.extend(opts.args)
else:
command.append("-nographic")
return QemuCommand(command, vsock_cid=vsock_cid)

View File

@ -3,7 +3,6 @@ import importlib
import json import json
import logging import logging
import os import os
import random
from dataclasses import dataclass, field from dataclasses import dataclass, field
from pathlib import Path from pathlib import Path
from tempfile import TemporaryDirectory from tempfile import TemporaryDirectory
@ -15,139 +14,13 @@ from ..machines.machines import Machine
from ..nix import nix_shell from ..nix import nix_shell
from ..secrets.generate import generate_secrets from ..secrets.generate import generate_secrets
from .inspect import VmConfig, inspect_vm from .inspect import VmConfig, inspect_vm
from .qemu import qemu_command
from .virtiofsd import start_virtiofsd from .virtiofsd import start_virtiofsd
from .waypipe import start_waypipe from .waypipe import start_waypipe
log = logging.getLogger(__name__) log = logging.getLogger(__name__)
@dataclass
class GraphicOptions:
args: list[str]
vsock_cid: int | None = None
def graphics_options(vm: VmConfig) -> GraphicOptions:
common = [
"-audio",
"driver=pa,model=virtio",
]
if vm.waypipe:
# FIXME: check for collisions
cid = random.randint(1, 2**32)
# fmt: off
return GraphicOptions([
*common,
"-nographic",
"-vga", "none",
"-device", f"vhost-vsock-pci,id=vhost-vsock-pci0,guest-cid={cid}",
# TODO: vgpu
#"-display", "egl-headless,gl=core",
#"-device", "virtio-vga,blob=true",
#"-device", "virtio-serial-pci",
#"-device", "vhost-user-vga,chardev=vgpu",
#"-chardev", "socket,id=vgpu,path=/tmp/vgpu.sock",
], cid)
# fmt: on
else:
# fmt: off
return GraphicOptions([
*common,
"-vga", "none",
"-display", "gtk,gl=on",
"-device", "virtio-gpu-gl",
"-display", "spice-app,gl=on",
"-device", "virtio-serial-pci",
"-chardev", "spicevmc,id=vdagent0,name=vdagent",
"-device", "virtserialport,chardev=vdagent0,name=com.redhat.spice.0",
"-device", "qemu-xhci,id=spicepass",
"-chardev", "spicevmc,id=usbredirchardev1,name=usbredir",
"-device", "usb-redir,chardev=usbredirchardev1,id=usbredirdev1",
"-chardev", "spicevmc,id=usbredirchardev2,name=usbredir",
"-device", "usb-redir,chardev=usbredirchardev2,id=usbredirdev2",
"-chardev", "spicevmc,id=usbredirchardev3,name=usbredir",
"-device", "usb-redir,chardev=usbredirchardev3,id=usbredirdev3",
"-device", "pci-ohci,id=smartpass",
"-device", "usb-ccid",
"-chardev", "spicevmc,id=ccid,name=smartcard",
], None)
# fmt: on
@dataclass
class QemuCommand:
args: list[str]
vsock_cid: int | None = None
def qemu_command(
vm: VmConfig,
nixos_config: dict[str, str],
secrets_dir: Path,
rootfs_img: Path,
state_img: Path,
virtiofsd_socket: Path,
qmp_socket_file: Path,
qga_socket_file: Path,
) -> QemuCommand:
kernel_cmdline = [
(Path(nixos_config["toplevel"]) / "kernel-params").read_text(),
f'init={nixos_config["toplevel"]}/init',
f'regInfo={nixos_config["regInfo"]}/registration',
"console=hvc0",
]
if not vm.waypipe:
kernel_cmdline.append("console=tty0")
# fmt: off
command = [
"qemu-kvm",
"-name", vm.machine_name,
"-m", f'{nixos_config["memorySize"]}M',
"-object", f"memory-backend-memfd,id=mem,size={nixos_config['memorySize']}M",
"-machine", "pc,memory-backend=mem,accel=kvm",
"-smp", str(nixos_config["cores"]),
"-cpu", "max",
"-enable-kvm",
# speed-up boot by not waiting for the boot menu
"-boot", "menu=off,strict=on",
"-device", "virtio-rng-pci",
"-netdev", "user,id=user.0",
"-device", "virtio-net-pci,netdev=user.0,romfile=",
"-chardev", f"socket,id=char1,path={virtiofsd_socket}",
"-device", "vhost-user-fs-pci,chardev=char1,tag=nix-store",
"-virtfs", f"local,path={secrets_dir},security_model=none,mount_tag=secrets",
"-drive", f"cache=writeback,file={rootfs_img},format=qcow2,id=drive1,if=none,index=1,werror=report",
"-device", "virtio-blk-pci,bootindex=1,drive=drive1,serial=root",
"-drive", f"cache=writeback,file={state_img},format=qcow2,id=state,if=none,index=2,werror=report",
"-device", "virtio-blk-pci,drive=state",
"-device", "virtio-keyboard",
"-usb", "-device", "usb-tablet,bus=usb-bus.0",
"-kernel", f'{nixos_config["toplevel"]}/kernel',
"-initrd", nixos_config["initrd"],
"-append", " ".join(kernel_cmdline),
# qmp & qga setup
"-qmp", f"unix:{qmp_socket_file},server,wait=off",
"-chardev", f"socket,path={qga_socket_file},server=on,wait=off,id=qga0",
"-device", "virtio-serial",
"-device", "virtserialport,chardev=qga0,name=org.qemu.guest_agent.0",
"-serial", "null",
"-chardev", "stdio,mux=on,id=char0,signal=off",
"-mon", "chardev=char0,mode=readline",
"-device", "virtconsole,chardev=char0,nr=0",
] # fmt: on
vsock_cid = None
if vm.graphics:
opts = graphics_options(vm)
vsock_cid = opts.vsock_cid
command.extend(opts.args)
else:
command.append("-nographic")
return QemuCommand(command, vsock_cid=vsock_cid)
def facts_to_nixos_config(facts: dict[str, dict[str, bytes]]) -> dict: def facts_to_nixos_config(facts: dict[str, dict[str, bytes]]) -> dict:
nixos_config: dict = {} nixos_config: dict = {}
nixos_config["clanCore"] = {} nixos_config["clanCore"] = {}