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| author |   Jun Yao <yaojun8558363@gmail.com> | 2018-09-24 17:56:18 +0100 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2018-09-25 15:10:55 +0100 |
| commit | 8eb7e28d4c642c310f25c18f80a44dd4b01c694e (patch) | |
| tree | 931df13e61148dfd777a5244cbceded4a5fad955 /drivers/perf | |
| parent | arm64/mm: use fixmap to modify swapper_pg_dir (diff) | |
| download | linux-dev-8eb7e28d4c642c310f25c18f80a44dd4b01c694e.tar.xz linux-dev-8eb7e28d4c642c310f25c18f80a44dd4b01c694e.zip | |
arm64/mm: move runtime pgds to rodata
Now that deliberate writes to swapper_pg_dir are made via the fixmap, we
can defend against errant writes by moving it into the rodata section.
Since tramp_pg_dir and reserved_ttbr0 must be at a fixed offset from
swapper_pg_dir, and are not modified at runtime, these are also moved
into the rodata section. Likewise, idmap_pg_dir is not modified at
runtime, and is moved into rodata.
Signed-off-by: Jun Yao <yaojun8558363@gmail.com>
Reviewed-by: James Morse <james.morse@arm.com>
[Mark: simplify linker script, commit message]
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'drivers/perf')
0 files changed, 0 insertions, 0 deletions