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by whizzter
497 days ago
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Can't remember exactly what one but I remember reading an article about some VM that added interruption checks not at block boundaries, but rather only at _backwards_ branches and call-sites, so "safe" forward jumps (if/else/break) wouldn't cost anything extra but anything that could go on "forever" had the checks. Reserving 4gb address space oughta work on any 64bit machine with a decent OS/paging system though? I was looking into it but couldn't use it in my case however since it needs to cooperate with another VM that already hooks the PF handler (although maybe I should take another stab if there is a way to put in a hierarhcy). |
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