Il 09/09/2013 17:29, Arthur Chunqi Li ha scritto: > Hi Paolo, > I noticed another possible bug of this patch. Stage 4 of this patch > test the scenario that the page of a paging structure is not present, > then this will cause EPT violation vmexit with bit 8 of exit_qual > unset. My question is: will instruction length be correctly set on > this scenario? I got wrong insn_len in "case 4" of VMX_EPT_VIOLATION, > which may cause triple fault vmexit. It's plausible that the instruction length is wrong, since the processor might be fetching the instruction itself and doesn't know the length. Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html