Commit Graph

2 Commits

Author SHA1 Message Date
Antonio Nino Diaz e8719552a2 Automatically select initial xlation lookup level
Instead of hardcoding a level 1 table as the base translation level
table, let the code decide which level is the most appropriate given
the virtual address space size.

As the table granularity is 4 KB, this allows the code to select
level 0, 1 or 2 as base level for AArch64. This way, instead of
limiting the virtual address space width to 39-31 bits, widths of
48-25 bit can be used.

For AArch32, this change allows the code to select level 1 or 2
as the base translation level table and use virtual address space
width of 32-25 bits.

Also removed some unused definitions related to translation tables.

Fixes ARM-software/tf-issues#362

Change-Id: Ie3bb5d6d1a4730a26700b09827c79f37ca3cdb65
2016-08-23 10:51:44 +01:00
Soby Mathew b2bca61da5 AArch32: Add translation table library support
This patch adds translation library supports for AArch32 platforms.
The library only supports long descriptor formats for AArch32.
The `enable_mmu_secure()` enables the MMU for secure world with
`TTBR0` pointing to the populated translation tables.

Change-Id: I061345b1779391d098e35e7fe0c76e3ebf850e08
2016-08-10 12:35:46 +01:00