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| author | Balbir Singh | 2017-06-28 19:04:11 +0200 |
|---|---|---|
| committer | Michael Ellerman | 2017-07-04 03:37:44 +0200 |
| commit | 1e0fc9d1eb2b0241a03e0a02bcdb9b5b641b9d35 (patch) | |
| tree | 30c28bcf67a505c954c6e28bef10ded1f4ae0d39 /drivers | |
| parent | powerpc/mm/radix: Implement STRICT_RWX/mark_rodata_ro() for Radix (diff) | |
| download | kernel-qcow2-linux-1e0fc9d1eb2b0241a03e0a02bcdb9b5b641b9d35.tar.gz kernel-qcow2-linux-1e0fc9d1eb2b0241a03e0a02bcdb9b5b641b9d35.tar.xz kernel-qcow2-linux-1e0fc9d1eb2b0241a03e0a02bcdb9b5b641b9d35.zip | |
powerpc/Kconfig: Enable STRICT_KERNEL_RWX for some configs
All code that patches kernel text has been moved over to using
patch_instruction() and patch_instruction() is able to cope with the
kernel text being read only.
The linker script has been updated to ensure the read only data ends
on a large page boundary, so it and the preceding kernel text can be
marked R_X. We also have implementations of mark_rodata_ro() for Hash
and Radix MMU modes.
There are some corner-cases missing when the kernel is built
relocatable, so for now make it depend on !RELOCATABLE.
There's also a temporary workaround to depend on !HIBERNATION to avoid
a build failure, that will be removed once we've merged with the PM
tree.
Signed-off-by: Balbir Singh <bsingharora@gmail.com>
[mpe: Make it depend on !RELOCATABLE, munge change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions