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IDR0.HYP=1 > 2. cpus_have_cap(ARM64_HAS_VIRT_HOST_EXTN) > > VMID is from FEAT_TRANS_S2, which is set When > 1. IDR0_S2P=1 > > So, host-level stage-1 TLBIs use EL2 commands (no VMID); guest-level > TLBIs use NH_ commands (with VMID). Oh... I see the half baked BTM stuff pushes STRW it into the NH mode because the CPU runs in that mode so we loose the VMID :\ I guess VM support is important anyhow so you do have to scan the CD tables and extract the ASIDs, carefully considering the STRW and VMID of the STE :\ Jason