On 2013-08-01 16:08, Gleb Natapov wrote: > Another day -- another version of the nested EPT patches. In this version > included fix for need_remote_flush() with shadowed ept, set bits 6:8 > of exit_qualification during ept_violation, update_permission_bitmask() > made to work with shadowed ept pages and other small adjustment according > to review comments. Was just testing it here and ran into a bug: I've L2 accessing the HPET MMIO region that my L1 passed through from L0 (where it is supposed to be emulated in this setup). This used to work with an older posting of Jun, but now it locks up (infinite loop over L2's MMIO access, no L2->L1 transition). Any ideas where to look for debugging this? Jan
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