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Add note explaining what is KVM

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Emmanuel Kasper 2016-06-06 12:23:17 +02:00 committed by Dietmar Maurer
parent 189d366113
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@ -45,7 +45,14 @@ only concerned with 32 and 64 bits PC clone emulation, since it represents the
overwhelming majority of server hardware. The emulation of PC clones is also one
of the fastest due to the availability of processor extensions which greatly
speed up Qemu when the emulated architecture is the same as the host
architecture. +
architecture.
NOTE: You may sometimes encounter the term _KVM_ (Kernel-based Virtual Machine).
It means that Qemu is running with the support of the virtualization processor
extensions, via the Linux kvm module. In the context of {pve} _Qemu_ and
_KVM_ can be use interchangeably as Qemu in {pve} will always try to load the kvm
module.
Qemu inside {pve} runs as a root process, since this is required to access block
and PCI devices.