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authorThomas Bogendoerfer <[email protected]>2022-02-22 16:53:44 +0100
committerArnd Bergmann <[email protected]>2022-02-25 09:36:05 +0100
commit429124d992648b924408a912dc939cdb42d870b2 (patch)
tree97805502b09108f77e25718b5238b32f63cf9996 /tools/perf/scripts/python/libxed.py
parent34737e26980341519d00e84711fe619f9f47e79c (diff)
MIPS: Handle address errors for accesses above CPU max virtual user address
Address errors have always been treated as unaliged accesses and handled as such. But address errors are also issued for illegal accesses like user to kernel space or accesses outside of implemented spaces. This change implements Linux exception handling for accesses to the illegal space above the CPU implemented maximum virtual user address and the MIPS 64bit architecture maximum. With this we can now use a fixed value for the maximum task size on every MIPS CPU and get a more optimized access_ok(). Signed-off-by: Thomas Bogendoerfer <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]>
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