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https://github.com/cloud-hypervisor/cloud-hypervisor.git
synced 2025-02-22 03:12:27 +00:00
vmm: device_manager: Add a console creation routine
In order to reduce the DeviceManager's new() complexity, we can move the console creation code into its own routine. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz
Sebastien Boeuf
parent
e1281b5488
commit
4b469b98cf
@ -432,47 +432,6 @@ impl DeviceManager {
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ioapic: &ioapic,
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};
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let serial_writer: Option<Box<dyn io::Write + Send>> = match vm_info.vm_cfg.serial.mode {
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ConsoleOutputMode::File => Some(Box::new(
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File::create(vm_info.vm_cfg.serial.file.as_ref().unwrap())
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.map_err(DeviceManagerError::SerialOutputFileOpen)?,
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)),
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ConsoleOutputMode::Tty => Some(Box::new(stdout())),
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ConsoleOutputMode::Off | ConsoleOutputMode::Null => None,
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};
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let serial = if vm_info.vm_cfg.serial.mode != ConsoleOutputMode::Off {
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// Serial is tied to IRQ #4
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let serial_irq = 4;
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let interrupt: Box<dyn devices::Interrupt> = if let Some(ioapic) = &ioapic {
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Box::new(UserIoapicIrq::new(ioapic.clone(), serial_irq))
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} else {
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let serial_evt = EventFd::new(EFD_NONBLOCK).map_err(DeviceManagerError::EventFd)?;
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vm_info
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.vm_fd
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.register_irqfd(&serial_evt, serial_irq as u32)
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.map_err(DeviceManagerError::Irq)?;
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Box::new(KernelIoapicIrq::new(serial_evt))
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};
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let serial = Arc::new(Mutex::new(devices::legacy::Serial::new(
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interrupt,
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serial_writer,
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)));
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allocator
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.allocate_io_addresses(Some(GuestAddress(0x3f8)), 0x8, None)
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.ok_or(DeviceManagerError::AllocateIOPort)?;
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io_bus
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.insert(serial.clone(), 0x3f8, 0x8)
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.map_err(DeviceManagerError::BusError)?;
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Some(serial)
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} else {
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None
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};
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// Add a shutdown device (i8042)
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let i8042 = Arc::new(Mutex::new(devices::legacy::I8042Device::new(
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reset_evt.try_clone().map_err(DeviceManagerError::EventFd)?,
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@ -517,48 +476,8 @@ impl DeviceManager {
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}
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let mut virtio_devices: Vec<(Box<dyn vm_virtio::VirtioDevice>, bool)> = Vec::new();
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// Create serial and virtio-console
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let console_writer: Option<Box<dyn io::Write + Send + Sync>> =
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match vm_info.vm_cfg.console.mode {
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ConsoleOutputMode::File => Some(Box::new(
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File::create(vm_info.vm_cfg.console.file.as_ref().unwrap())
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.map_err(DeviceManagerError::ConsoleOutputFileOpen)?,
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)),
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ConsoleOutputMode::Tty => Some(Box::new(stdout())),
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ConsoleOutputMode::Null => Some(Box::new(sink())),
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ConsoleOutputMode::Off => None,
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};
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let (col, row) = get_win_size();
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let console_input = if let Some(writer) = console_writer {
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let (virtio_console_device, console_input) =
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vm_virtio::Console::new(writer, col, row, vm_info.vm_cfg.console.iommu)
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.map_err(DeviceManagerError::CreateVirtioConsole)?;
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virtio_devices.push((
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Box::new(virtio_console_device) as Box<dyn vm_virtio::VirtioDevice>,
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false,
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));
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Some(console_input)
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} else {
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None
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};
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let console = Arc::new(Console {
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serial,
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console_input,
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input_enabled: vm_info.vm_cfg.serial.mode.input_enabled()
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|| vm_info.vm_cfg.console.mode.input_enabled(),
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});
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let mut mmap_regions = Vec::new();
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virtio_devices.append(&mut DeviceManager::make_virtio_devices(
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vm_info,
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&mut allocator,
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&mut mem_slots,
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&mut mmap_regions,
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)?);
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#[allow(unused_mut)]
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let mut cmdline_additions = Vec::new();
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@ -573,6 +492,20 @@ impl DeviceManager {
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vm_fd: vm_info.vm_fd.clone(),
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});
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let console = DeviceManager::make_console_device(
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vm_info,
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&address_manager,
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&ioapic,
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&mut virtio_devices,
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)?;
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virtio_devices.append(&mut DeviceManager::make_virtio_devices(
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vm_info,
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&address_manager,
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&mut mem_slots,
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&mut mmap_regions,
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)?);
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if cfg!(feature = "pci_support") {
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#[cfg(feature = "pci_support")]
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{
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@ -700,12 +633,97 @@ impl DeviceManager {
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})
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}
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fn make_console_device(
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vm_info: &VmInfo,
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address_manager: &Arc<AddressManager>,
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ioapic: &Option<Arc<Mutex<ioapic::Ioapic>>>,
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virtio_devices: &mut Vec<(Box<dyn vm_virtio::VirtioDevice>, bool)>,
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) -> DeviceManagerResult<Arc<Console>> {
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let serial_writer: Option<Box<dyn io::Write + Send>> = match vm_info.vm_cfg.serial.mode {
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ConsoleOutputMode::File => Some(Box::new(
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File::create(vm_info.vm_cfg.serial.file.as_ref().unwrap())
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.map_err(DeviceManagerError::SerialOutputFileOpen)?,
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)),
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ConsoleOutputMode::Tty => Some(Box::new(stdout())),
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ConsoleOutputMode::Off | ConsoleOutputMode::Null => None,
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};
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let serial = if vm_info.vm_cfg.serial.mode != ConsoleOutputMode::Off {
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// Serial is tied to IRQ #4
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let serial_irq = 4;
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let interrupt: Box<dyn devices::Interrupt> = if let Some(ioapic) = &ioapic {
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Box::new(UserIoapicIrq::new(ioapic.clone(), serial_irq))
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} else {
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let serial_evt = EventFd::new(EFD_NONBLOCK).map_err(DeviceManagerError::EventFd)?;
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vm_info
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.vm_fd
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.register_irqfd(&serial_evt, serial_irq as u32)
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.map_err(DeviceManagerError::Irq)?;
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Box::new(KernelIoapicIrq::new(serial_evt))
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};
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let serial = Arc::new(Mutex::new(devices::legacy::Serial::new(
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interrupt,
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serial_writer,
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)));
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address_manager
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.allocator
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.lock()
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.unwrap()
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.allocate_io_addresses(Some(GuestAddress(0x3f8)), 0x8, None)
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.ok_or(DeviceManagerError::AllocateIOPort)?;
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address_manager
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.io_bus
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.insert(serial.clone(), 0x3f8, 0x8)
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.map_err(DeviceManagerError::BusError)?;
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Some(serial)
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} else {
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None
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};
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// Create serial and virtio-console
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let console_writer: Option<Box<dyn io::Write + Send + Sync>> =
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match vm_info.vm_cfg.console.mode {
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ConsoleOutputMode::File => Some(Box::new(
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File::create(vm_info.vm_cfg.console.file.as_ref().unwrap())
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.map_err(DeviceManagerError::ConsoleOutputFileOpen)?,
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)),
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ConsoleOutputMode::Tty => Some(Box::new(stdout())),
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ConsoleOutputMode::Null => Some(Box::new(sink())),
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ConsoleOutputMode::Off => None,
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};
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let (col, row) = get_win_size();
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let console_input = if let Some(writer) = console_writer {
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let (virtio_console_device, console_input) =
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vm_virtio::Console::new(writer, col, row, vm_info.vm_cfg.console.iommu)
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.map_err(DeviceManagerError::CreateVirtioConsole)?;
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virtio_devices.push((
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Box::new(virtio_console_device) as Box<dyn vm_virtio::VirtioDevice>,
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false,
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));
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Some(console_input)
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} else {
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None
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};
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Ok(Arc::new(Console {
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serial,
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console_input,
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input_enabled: vm_info.vm_cfg.serial.mode.input_enabled()
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|| vm_info.vm_cfg.console.mode.input_enabled(),
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}))
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}
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fn make_virtio_devices(
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vm_info: &VmInfo,
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allocator: &mut SystemAllocator,
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address_manager: &Arc<AddressManager>,
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mut mem_slots: &mut u32,
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mmap_regions: &mut Vec<(*mut libc::c_void, usize)>,
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) -> DeviceManagerResult<Vec<(Box<dyn vm_virtio::VirtioDevice>, bool)>> {
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let mut allocator = address_manager.allocator.lock().unwrap();
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let mut devices: Vec<(Box<dyn vm_virtio::VirtioDevice>, bool)> = Vec::new();
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// Create "standard" virtio devices (net/block/rng)
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@ -716,7 +734,7 @@ impl DeviceManager {
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// Add virtio-fs if required
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devices.append(&mut DeviceManager::make_virtio_fs_devices(
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vm_info,
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allocator,
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&mut allocator,
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&mut mem_slots,
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mmap_regions,
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)?);
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@ -724,7 +742,7 @@ impl DeviceManager {
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// Add virtio-pmem if required
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devices.append(&mut DeviceManager::make_virtio_pmem_devices(
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vm_info,
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allocator,
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&mut allocator,
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&mut mem_slots,
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mmap_regions,
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)?);
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