virt-install

$ virt-install --help
usage: virt-install --name NAME --memory MB STORAGE INSTALL [options]
Create a new virtual machine from specified install media.
options:
 -h, --help show this help message and exit
 --version show program's version number and exit
 --connect URI Connect to hypervisor with libvirt URI
General Options:
 -n NAME, --name NAME Name of the guest instance
 --memory MEMORY Configure guest memory allocation. Ex:
 --memory 1024 (in MiB)
 --memory memory=1024,currentMemory=512
 --vcpus VCPUS Number of vCPUs to configure for your guest. Ex:
 --vcpus 5
 --vcpus 5,maxvcpus=10,cpuset=1-4,6,8
 --vcpus sockets=2,cores=4,threads=2
 --cpu CPU CPU model and features. Ex:
 --cpu coreduo,+x2apic
 --cpu host-passthrough
 --cpu host
 --metadata METADATA Configure guest metadata. Ex:
 --metadata name=foo,title="My pretty title",uuid=...
 --metadata description="My nice long description"
 --xml XML Perform raw XML XPath options on the final XML. Example:
 --xml ./cpu/@mode=host-passthrough
 --xml ./devices/disk[2]/serial=new-serial
 --xml xpath.delete=./clock
Installation Method Options:
 --cdrom CDROM CD-ROM installation media
 -l LOCATION, --location LOCATION
 Distro install URL, eg. https://host/path. See man page for specific distro examples.
 --pxe Boot from the network using the PXE protocol
 --import Build guest around an existing disk image
 -x EXTRA_ARGS, --extra-args EXTRA_ARGS
 Additional arguments to pass to the install kernel booted from --location
 --initrd-inject INITRD_INJECT
 Add given file to root of initrd from --location
 --unattended [UNATTENDED]
 Perform an unattended installation
 --install INSTALL Specify fine grained install options
 --reinstall DOMAIN Reinstall existing VM. Only install options are applied, all other VM configuration options are ignored.
 --cloud-init [CLOUD_INIT]
 Perform a cloud image installation, configuring cloud-init
 --boot BOOT Configure guest boot settings. Ex:
 --boot hd,cdrom,menu=on
 --boot init=/sbin/init (for containers)
 --idmap IDMAP Enable user namespace for LXC container. Ex:
 --idmap uid.start=0,uid.target=1000,uid.count=10
OS options:
 --os-variant OS_VARIANT, --osinfo OS_VARIANT
 The OS being installed in the guest.
 This is used for deciding optimal defaults like VirtIO.
 Example values: fedora29, rhel7.0, win10, ...
 Use '--osinfo list' to see a full list.
Device Options:
 --disk DISK Specify storage with various options. Ex.
 --disk size=10 (new 10GiB image in default location)
 --disk /my/existing/disk,cache=none
 --disk device=cdrom,bus=scsi
 --disk=?
 -w NETWORK, --network NETWORK
 Configure a guest network interface. Ex:
 --network bridge=mybr0
 --network network=my_libvirt_virtual_net
 --network network=mynet,model=virtio,mac=00:11...
 --network none
 --network help
 --graphics GRAPHICS Configure guest display settings. Ex:
 --graphics spice
 --graphics vnc,port=5901,listen=0.0.0.0
 --graphics none
 --controller CONTROLLER
 Configure a guest controller device. Ex:
 --controller type=usb,model=qemu-xhci
 --controller type=scsi,model=virtio-scsi
 --input INPUT Configure a guest input device. Ex:
 --input tablet
 --input keyboard,bus=usb
 --serial SERIAL Configure a guest serial device
 --parallel PARALLEL Configure a guest parallel device
 --channel CHANNEL Configure a guest communication channel
 --console CONSOLE Configure a text console connection between the guest and host
 --hostdev HOSTDEV Configure physical USB/PCI/etc host devices to be shared with the guest
 --filesystem FILESYSTEM
 Pass host directory to the guest. Ex: 
 --filesystem /my/source/dir,/dir/in/guest
 --filesystem template_name,/,type=template
 --sound [SOUND] Configure guest sound device emulation
 --audio AUDIO Configure host audio backend for sound devices
 --watchdog WATCHDOG Configure a guest watchdog device
 --video VIDEO Configure guest video hardware.
 --smartcard SMARTCARD
 Configure a guest smartcard device. Ex:
 --smartcard mode=passthrough
 --redirdev REDIRDEV Configure a guest redirection device. Ex:
 --redirdev usb,type=tcp,server=192.168.1.1:4000
 --memballoon MEMBALLOON
 Configure a guest memballoon device. Ex:
 --memballoon model=virtio
 --tpm TPM Configure a guest TPM device. Ex:
 --tpm /dev/tpm
 --rng RNG Configure a guest RNG device. Ex:
 --rng /dev/urandom
 --panic PANIC Configure a guest panic device. Ex:
 --panic default
 --shmem SHMEM Configure a guest shared memory device. Ex:
 --shmem name=shmem0
 --memdev MEMDEV Configure a guest memory device. Ex:
 --memdev dimm,target.size=1024
 --vsock VSOCK Configure guest vsock sockets. Ex:
 --vsock cid.auto=yes
 --vsock cid.address=7
 --iommu IOMMU Configure an IOMMU device. Ex:
 --iommu model=intel,driver.aw_bits=48
Guest Configuration Options:
 --iothreads IOTHREADS
 Set domain <iothreads> and <iothreadids> configuration.
 --seclabel SECLABEL, --security SECLABEL
 Set domain seclabel configuration.
 --keywrap KEYWRAP Set guest to perform the S390 cryptographic key management operations.
 --cputune CPUTUNE Tune CPU parameters for the domain process.
 --numatune NUMATUNE Tune NUMA policy for the domain process.
 --memtune MEMTUNE Tune memory policy for the domain process.
 --blkiotune BLKIOTUNE
 Tune blkio policy for the domain process.
 --memorybacking MEMORYBACKING
 Set memory backing policy for the domain process. Ex:
 --memorybacking hugepages=on
 --features FEATURES Set domain <features> XML. Ex:
 --features acpi=off
 --features apic=on,apic.eoi=on
 --clock CLOCK Set domain <clock> XML. Ex:
 --clock offset=localtime,rtc_tickpolicy=catchup
 --pm PM Configure VM power management features
 --events EVENTS Configure VM lifecycle management policy
 --resource RESOURCE Configure VM resource partitioning (cgroups)
 --sysinfo SYSINFO Configure SMBIOS System Information. Ex:
 --sysinfo host
 --sysinfo bios.vendor=MyVendor,bios.version=1.2.3,...
 --qemu-commandline QEMU_COMMANDLINE
 Pass arguments directly to the QEMU emulator. Ex:
 --qemu-commandline='-display gtk,gl=on'
 --qemu-commandline env=DISPLAY=:0.1
 --launchSecurity LAUNCHSECURITY, --launchsecurity LAUNCHSECURITY
 Configure VM launch security (e.g. SEV memory encryption). Ex:
 --launchSecurity sev
Virtualization Platform Options:
 -v, --hvm This guest should be a fully virtualized guest
 -p, --paravirt This guest should be a paravirtualized guest
 --container This guest should be a container guest
 --virt-type VIRT_TYPE
 Hypervisor name to use (kvm, qemu, xen, ...)
 --arch ARCH The CPU architecture to simulate
 --machine MACHINE The machine type to emulate
Miscellaneous Options:
 --autostart Have domain autostart on host boot up.
 --transient Create a transient domain.
 --destroy-on-exit Force power off the domain when the console viewer is closed.
 --wait [WAIT] Minutes to wait for install to complete.
 --autoconsole AUTOCONSOLE
 Configure guest console auto connect. Example:
 --autoconsole text
 --autoconsole graphical
 --autoconsole none
 --noautoconsole Don't automatically try to connect to the guest console
 --noreboot Don't boot guest after completing install.
 --print-xml [XMLONLY]
 Print the generated domain XML rather than create the guest.
 --dry-run Run through install process, but do not create devices or define the guest.
 --check CHECK Enable or disable validation checks. Example:
 --check path_in_use=off
 --check all=off
 -q, --quiet Suppress non-error output
 -d, --debug Print debugging information
Use '--option=?' or '--option help' to see available suboptions
See man page for examples and full option syntax.

$ virt-install --osinfo help
--os-variant options:
 detect
 id
 name
 require
 short-id

$ virt-install --cpu help 
--cpu options:
 clearxml
 xpath[0-9]*.create
 xpath[0-9]*.delete
 xpath[0-9]*.set
 xpath[0-9]*.value
 cache.level
 cache.mode
 check
 disable
 forbid
 force
 match
 migratable
 mode
 model
 model.fallback
 model.vendor_id
 numa.cell[0-9]*.cache[0-9]*.associativity
 numa.cell[0-9]*.cache[0-9]*.level
 numa.cell[0-9]*.cache[0-9]*.line.unit
 numa.cell[0-9]*.cache[0-9]*.line.value
 numa.cell[0-9]*.cache[0-9]*.policy
 numa.cell[0-9]*.cache[0-9]*.size.unit
 numa.cell[0-9]*.cache[0-9]*.size.value
 numa.cell[0-9]*.cpus
 numa.cell[0-9]*.discard
 numa.cell[0-9]*.distances.sibling[0-9]*.id
 numa.cell[0-9]*.distances.sibling[0-9]*.value
 numa.cell[0-9]*.id
 numa.cell[0-9]*.memAccess
 numa.cell[0-9]*.memory
 numa.cell[0-9]*.unit
 numa.interconnects.bandwidth[0-9]*.cache
 numa.interconnects.bandwidth[0-9]*.initiator
 numa.interconnects.bandwidth[0-9]*.target
 numa.interconnects.bandwidth[0-9]*.type
 numa.interconnects.bandwidth[0-9]*.unit
 numa.interconnects.bandwidth[0-9]*.value
 numa.interconnects.latency[0-9]*.cache
 numa.interconnects.latency[0-9]*.initiator
 numa.interconnects.latency[0-9]*.target
 numa.interconnects.latency[0-9]*.type
 numa.interconnects.latency[0-9]*.unit
 numa.interconnects.latency[0-9]*.value
 optional
 require
 secure
 topology.cores
 topology.dies
 topology.sockets
 topology.threads
 vendor