> But AFAI recursive #VE is entirely possible. The moment #VE reads that > ve_info thing, NMIs can happen, which can trigger another #VE which then > clobbers your stack and we're irrecoverably screwed again. I don't believe we have anything currently in the NMI handler that would trigger #VE. While some operations may need TDCALL (like MSR accesses) those should be all directly hooked. Also in general to avoid clobbering your stack you would just need to make sure to adjust the IST stack before you do anything that could cause another #VE. -Andi
