Mogens Kjaer <mk <at> crc.dk> writes:
> Before creating a virtualized process, check that the CPU does
> virtualization AND that it is enabled in the BIOS.
Actually regular QEMU doesn't use hardware virtualization, you have to use KVM
to use it.
QEMU without kqemu = pure software emulation, no hardware support required, can
emulate other architectures (e.g. x86_64 on a 32-bit x86 host), very slow
QEMU with kqemu = software virtualization, does not need hardware
virtualization support, but does need kernel support (kmod-kqemu) and can only
emulate its own architecture (e.g. no x86_64 emulation on 32-bit hosts)
KVM (which uses QEMU) = hardware virtualization using the hardware
virtualization support in recent CPUs, needs kernel support, but such support
is included in current upstream and Fedora kernels, can only emulate x86 and
x86_64 (and I'm not sure whether it's possible to run x86_64 KVM VMs on a
32-bit x86 host)
Kevin Kofler
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