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SMP Emulation
Emulation of more processors than the host has
Dead simple
- start the appropriate number of idle threads at boot
- schedule as normal
UML arch layer must be SMP safe
current_processor() primitive
Notes:
SMP emulation involves the virtual machine having more processors than the host. Arranging this is a matter of starting the appropriate number of idle threads at boot time and making sure that the arch/um layer is SMP safe.