b4698b7a6c
It's possible for a Hypervisor Maintenance Interrupt (HMI) to occur while in the pmap code, holding locks. This can cause WITNESS to panic due to lock errors in calling pmap_kextract(). Since we don't yet handle the flags returned by OPAL_HANDLE_HMI2, just stop using it, so that we don't call into pmap_kextract(). Reported by: pkubaj