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19.2. Basic Options

This section provides information about the basic options.

Emulated Machine

-M <machine-type>
-machine <machine-type>[,<property>[=<value>][,..]]

Processor Type

-cpu <model>[,<FEATURE>][...]
Additional models are visible by running -cpu ? command.
  • Opteron_G5 - AMD Opteron 63xx class CPU
  • Opteron_G4 - AMD Opteron 62xx class CPU
  • Opteron_G3 - AMD Opteron 23xx (AMD Opteron Gen 3)
  • Opteron_G2 - AMD Opteron 22xx (AMD Opteron Gen 2)
  • Opteron_G1 - AMD Opteron 240 (AMD Opteron Gen 1)
  • Westmere - Westmere E56xx/L56xx/X56xx (Nehalem-C)
  • Haswell - Intel Core Processor (Haswell)
  • SandyBridge - Intel Xeon E312xx (Sandy Bridge)
  • Nehalem - Intel Core i7 9xx (Nehalem Class Core i7)
  • Penryn - Intel Core 2 Duo P9xxx (Penryn Class Core 2)
  • Conroe - Intel Celeron_4x0 (Conroe/Merom Class Core 2)
  • cpu64-rhel5 - Red Hat Enterprise Linux 5 supported QEMU Virtual CPU version
  • cpu64-rhel6 - Red Hat Enterprise Linux 6 supported QEMU Virtual CPU version
  • default - special option use default option from above.

Processor Topology

-smp <n>[,cores=<ncores>][,threads=<nthreads>][,sockets=<nsocks>][,maxcpus=<maxcpus>]
Hypervisor and guest operating system limits on processor topology apply.

NUMA System

-numa <nodes>[,mem=<size>][,cpus=<cpu[-cpu>]][,nodeid=<node>]
Hypervisor and guest operating system limits on processor topology apply.

Memory Size

-m <megs>
Supported values are limited by guest minimal and maximal values and hypervisor limits.

Keyboard Layout

-k <language>

Guest Name

-name <name>

Guest UUID

-uuid <uuid>