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| author | Russell Currey <[email protected]> | 2019-03-27 03:35:54 +0000 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2019-04-20 12:02:12 +0000 |
| commit | 56c46bba9bbfe229b4472a5be313c44c5b714a39 (patch) | |
| tree | 2774a129f5696d9167a8500a1f1d25671f93b96b /arch/powerpc/lib/code-patching.c | |
| parent | powerpc/embedded6xx: Remove unused functions holly_power_off and holly_halt (diff) | |
| download | kernel-56c46bba9bbfe229b4472a5be313c44c5b714a39.tar.gz kernel-56c46bba9bbfe229b4472a5be313c44c5b714a39.zip | |
powerpc/64: Fix booting large kernels with STRICT_KERNEL_RWX
With STRICT_KERNEL_RWX enabled anything marked __init is placed at a 16M
boundary. This is necessary so that it can be repurposed later with
different permissions. However, in kernels with text larger than 16M,
this pushes early_setup past 32M, incapable of being reached by the
branch instruction.
Fix this by setting the CTR and branching there instead.
Fixes: 1e0fc9d1eb2b ("powerpc/Kconfig: Enable STRICT_KERNEL_RWX for some configs")
Signed-off-by: Russell Currey <[email protected]>
[mpe: Fix it to work on BE by using DOTSYM()]
Signed-off-by: Michael Ellerman <[email protected]>
Diffstat (limited to 'arch/powerpc/lib/code-patching.c')
0 files changed, 0 insertions, 0 deletions