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To run x86 code on non-x86 machines would be my first guess. But I know nothing.
by unwind 10y ago
To run x86 code on non-x86 machines would be my first guess. But I know nothing.
- Sintendo 10y agoI thought so too at first, but I'd expect non-x86 host systems running x86 guests to be vulnerable if that were the case. The advisory seems to indicate otherwise. Anyway, I've done some digging and found an explanation here: https://insinuator.net/2015/02/the-dangers-of-x86-emulation-xen-xsa-110-and-105/ https://insinuator.net/2015/02/the-dangers-of-x86-emulation-... tl;dr: it falls back to emulation for very specific cases that cannot be handled by hardware-assisted virtualization