Linux · Virtualization: QEMU/KVM & libvirt

libvirt can run VMs at the session level or the system level — which do you pick for a server, and what's the security trade-off?

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More in Virtualization: QEMU/KVM & libvirt

When you shut down a KVM host, what happens to the running VMs — and where does their state go?

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Beyond ordinary x86 emulation, what makes QEMU able to run software built for a completely different CPU architecture?

KVM is often called a hypervisor, but what does the KVM kernel module actually do — and not do — on its own?

How do you check from the shell whether a CPU supports the hardware virtualization KVM requires, and what does an empty result mean?

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