It is possible to concatenate tables in stage 2 and therefore gain performance by skipping a translation level. Since the HW must be set for it why not to enable concatenation in stage 1 as well and potentially gain even more performance.
Hi Uzi Shvadron are you still looking for an answer to this question? Many thanks.
Stage 1 does not support concatenate table, since more general software like OS kernel would manage stage 1, there is a lot of use cases to cover.
I checked the page table, but it seems no problem. VA was 0x90800004 and TTBR0 was 0x80003000 and table was Long descriptor format. Fault not on a stage 2 translation for a stage 1 NomNom translation table walk means the fault is in stage 1, Why there is no translation tables concatenation for stage 1 of VA translation?
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