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Testing out the Xen live CDTesting out the Xen live CDPosted Jan 12, 2006 18:07 UTC (Thu) by drosser (guest, #29597)Parent article: Testing out the Xen live CD
I feel the need to point out QEMU does full virtualization just like VMWare. The drawbacks include an accelerator module that isn't free software (although there is a 3rd party module I haven't tried), and the networking stack can be a bit difficult to setup.
QEMU also supports the emulation of different processor architectures. This is in direct contrast to Xen, which I think is more like it's own sub-architecture of i386 Linux kernel.
Xen, with hardware support, will of course be much higher performing. But for kernel hacking (especially non-x86) I don't think it can be beat.
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Testing out the Xen live CD Posted Jan 15, 2006 20:20 UTC (Sun) by oak (subscriber, #2786) [Link] Is the official term "Full virtualization"?I have always thought that VMWare is mostly virtualization and partially emulation, Qemu is emulation (like Valgrind) except that it can also use dynamic translation to speed up the emulation. I'm not completely sure how much User Mode Linux is virtualization and whether it does emulation. At least earlier WMWare needed a kernel module to work whereas I think UML (and of course Qemu) could work without even that.
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