Cannot map over 508 grant reference in Mini-OS

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Cannot map over 508 grant reference in Mini-OS

Wang Cheng
I tried to map a large number of grant references in Mini-OS using "gntmap_map_grant_refs". However, this function fails if count is bigger than 508. I checked xl dmesg, and it says

(XEN) mm.c:4012:d5v0 Could not find L1 PTE for address 40200000

Is this a Mini-OS bug?

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Regards,
Wang Cheng

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