命令

参考:

https://www.cloudhypervisor.org/docs/prologue/commands/

cloud-hypervisor

通过 help 命令可以得到参数和参数说明:

cloud-hypervisor --help

• --api-socket <api-socket>

  HTTP API socket (UNIX domain socket): path=</path/to/a/file> or fd=<fd>

• --balloon <balloon>

  Balloon parameters

  “size=<balloon_size>,deflate_on_oom=on|off”

• --cmdline <cmdline>

  Kernel command line

• --console <console>

  Control (virtio) console: “off|null|pty|tty|file=</path/to/a/file>,iommu=on|off”

  [default: tty]

• --cpus <cpus>

  boot=<boot_vcpus>,max=<max_vcpus>,topology=<threads_per_core>:<cores_per_die>:<dies_per_package>:<packages>,kvm_hyperv=on

  [default: boot=1,max_phys_bits=46]

• --debug-console <debug-console>

  off|pty|tty|file=</path/to/a/file>,iobase=<port in hex>

  [default:off,iobase=0xe9]

• --device <device>...

  Direct device assignment parameters

  “path=<device_path>,iommu=on|off,id=<device_id>,pci_segment=<segment_id>”

• --disk <disk>...

  Disk parameters

  “path=<disk_image_path>,readonly=on|off,direct=on|off,iommu=on|off,num_queues=<number_of_queues>,queue_size=<size_of_each_queue>,vhost_user=on|off,socket=<vhost_user_socket_path>,bw_size=,bw_one_time_burst=,bw_refill_time=,ops_size=<io_ops>,ops_one_time_burst=<io_ops>,ops_refill_time=,id=<device_id>,pci_segment=<segment_id>,rate_limit_group=<group_id>,queue_affinity=<list_of_queue_indices_with_their_associated_cpuset>,serial=<serial_number>”

• --event-monitor <event-monitor>

  File to report events on: path=</path/to/a/file> or fd=<fd>

• --firmware <firmware>

  File to report events on: path=</path/to/a/file> or fd=<fd>

• --fs <fs>...

  virtio-fs parameters “tag=<tag_name>,socket=<socket_path>,num_queues=<number_of_queues>,queue_size=<size_of_each_queue>,id=<device_id>,pci_segment=<segment_id>”

• --initramfs <initramfs>

  Path to initramfs image

• --kernel <kernel>

  Path to kernel to load. This may be a kernel or firmware that supports a PVH entry point (e.g. vmlinux) or architecture equivalent

• --landlock

  enable/disable Landlock.

• --landlock-rules <landlock-rules>...

  Landlock parameters “path=<path/to/{file/dir}>,access=[rw]”

• --log-file <log-file>

  Log file. Standard error is used if not specified

• --memory <memory>

  “size=<guest_memory_size>,mergeable=on|off,shared=on|off,hugepages=on|off,hugepage_size=<hugepage_size>,hotplug_method=acpi|virtio-mem,hotplug_size=<hotpluggable_memory_size>,hotplugged_size=<hotplugged_memory_size>,prefault=on|off,thp=on|off”

  [default: size=512M]

• --memory-zone <memory-zone>...

  User defined memory zone parameters

  “size=<guest_memory_region_size>, file=<backing_file>, shared=on|off, hugepages=on|off, hugepage_size=<hugepage_size>, host_numa_node=<node_id>, id=<zone_identifier>, hotplug_size=<hotpluggable_memory_size>, hotplugged_size=<hotplugged_memory_size>, prefault=on|off”

• --net <net>...

  Network parameters

  “tap=<if_name>,ip=<ip_addr>,mask=<net_mask>,mac=<mac_addr>,fd=<fd1,fd2…>,iommu=on|off,num_queues=<number_of_queues>,queue_size=<size_of_each_queue>,id=<device_id>, vhost_user=<vhost_user_enable>, socket=<vhost_user_socket_path>, vhost_mode=client|server, bw_size=,bw_one_time_burst=, bw_refill_time=, ops_size=<io_ops>, ops_one_time_burst=<io_ops>, ops_refill_time=, pci_segment=<segment_id>offload_tso=on|off, offload_ufo=on|off, offload_csum=on|off”

• --numa <numa>...

  Settings related to a given NUMA node

  “guest_numa_id=<node_id>, cpus=<cpus_id>, distances=<list_of_distances_to_destination_nodes>, memory_zones=<list_of_memory_zones>, pci_segments=<list_of_pci_segments>”

• --pci-segment <pci-segment>...

  PCI Segment parameters

  “pci_segment=<segment_id>, mmio32_aperture_weight=, mmio64_aperture_weight=”

• --platform <platform>

  num_pci_segments=<num_pci_segments>, iommu_segments=<list_of_segments>, iommu_address_width=<bits>, serial_number=<dmi_device_serial_number>, uuid=<dmi_device_uuid>, oem_strings=<list_of_strings>

• --pmem <pmem>...

  Persistent memory parameters

  “file=<backing_file_path>,size=<persistent_memory_size>,iommu=on|off,discard_writes=on|off,id=<device_id>,pci_segment=<segment_id>”

• --pvpanic

  Enable pvpanic device

• --rate-limit-group <rate-limit-group>...

  Rate Limit Group parameters

  "bw_size=<bytes>, bw_one_time_burst=<bytes>, bw_refill_time=<ms>, ops_size=<io_ops>, ops_one_time_burst=<io_ops>, ops_refill_time=<ms>, id=<device_id>"

• --restore <restore>

  Restore from a VM snapshot.

  Restore parameters

  "source_url=<source_url>, prefault=on|off, net_fds=<list_of_net_ids_with_their_associated_fds>"

  source_url should be a valid URL (e.g file:///foo/bar or tcp://192.168.1.10/foo)

  prefault brings memory pages in when enabled (disabled by default)

  net_fds is a list of net ids with new file descriptors. Only net devices backed by FDs directly are needed as input.

• --rng <rng>

  Random number generator parameters “src=<entropy_source_path>,iommu=on|off”

  [default: src=/dev/urandom]

• --seccomp <seccomp>

  [default: true] [possible values: true, false, log]

• --serial <serial>

  Control serial port: off|null|pty|tty|file=</path/to/a/file>|socket=</path/to/a/file>

  [default: null]

• --tpm <tpm>

  TPM device “(UNIX Domain Socket from swtpm) socket=</path/to/a/socket>”

• --user-device <user-device>...

  Userspace device socket=<socket_path>,id=<device_id>,pci_segment=<segment_id>

• -v...

  Sets the level of debugging output

• --vdpa <vdpa>...

  vDPA device

  “path=<device_path>,num_queues=<number_of_queues>,iommu=on|off,id=<device_id>,pci_segment=<segment_id>”

• -V, --version

  Print version

• --vsock <vsock>

  Virtio VSOCK parameters

  “cid=<context_id>, socket=<socket_path>, iommu=on|off, id=<device_id>, pci_segment=<segment_id>”

• --watchdog

  Enable virtio-watchdog

• -h, --help

  Print help

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ch-remote

通过 help 命令可以得到参数和参数说明:

ch-remote --help

命令行选项: