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That's how we got virtualization on x86. When AMD killed segmentation in AMD64, VMware et al cried out loud. AMD reintroduced segmentation after that as a stop-

That's how we got virtualization on x86. When AMD killed segmentation in AMD64, VMware et al cried out loud. AMD reintroduced segmentation after that as a stop-gap solution, but then we got VTx and SVM which are a much better solution anyways.

asveikau 7y ago
Segmentation is also commonly used for thread local storage.
salawat 7y ago
I wish they'd done a better job of re-implementing segmentation. I can't tell you how many times my programs have stopped thanks to a segmentation fault. /s