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User mode emulation, where QEMU can run a process that has been compiled on a different CPU architecture natively


Cover of KVM Virtualization Cookbook


Linux User Mode Emulation

Here, a (set of) Linux process(es) compiled for one target CPU can be executed in a host environment based on another CPU. The qemu-$ARCH commands provide this emulation mode. The term qemu-user will also be used in this entry to refer to this mode of emulation.