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author | Catalin Marinas <catalin.marinas@arm.com> | 2015-11-26 15:42:41 +0000 |
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committer | Catalin Marinas <catalin.marinas@arm.com> | 2015-11-26 15:42:41 +0000 |
commit | 667c27597ca823f20c524bbd486c6709f905673b (patch) | |
tree | 31c7925b3532fe99303ce1172547909803ee25a1 /net/iucv | |
parent | 0ebea8088095f1c18c1d1de284ccc4c479ca21c1 (diff) |
Revert "arm64: Mark kernel page ranges contiguous"
This reverts commit 348a65cdcbbf243073ee39d1f7d4413081ad7eab.
Incorrect page table manipulation that does not respect the ARM ARM
recommended break-before-make sequence may lead to TLB conflicts. The
contiguous PTE patch makes the system even more susceptible to such
errors by changing the mapping from a single page to a contiguous range
of pages. An additional TLB invalidation would reduce the risk window,
however, the correct fix is to switch to a temporary swapper_pg_dir.
Once the correct workaround is done, the reverted commit will be
re-applied.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Jeremy Linton <jeremy.linton@arm.com>
Diffstat (limited to 'net/iucv')
0 files changed, 0 insertions, 0 deletions