Armpkg mmulib eager mappings #6427
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Extend the ArmMmuLib API so that mappings can be forced to page granularity even if some subregions could be (or are already) mapped using block mappings. This removes the need for any further page allocations for page tables, and this makes it a lot easier to use restricted permissions for unallocated memory. Signed-off-by: Ard Biesheuvel <[email protected]>
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Thanks @ardbiesheuvel. I will test this on an ARM64 server this week (and kick it around on a virtual machine, too). FYI, Taylor has moved on to greener pastures :) |
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PoC for eager page tables mappings on ARM