MIPS: unaligned: Fix regular load/store instruction emulation for EVA

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When emulating a regular lh/lw/lhu/sh/sw we need to use the appropriate
instruction if we are in EVA mode. This is necessary for userspace
applications which trigger alignment exceptions. In such case, the
userspace load/store instruction needs to be emulated with the correct
eva/non-eva instruction by the kernel emulator.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Fixes: c1771216ab ("MIPS: kernel: unaligned: Handle unaligned accesses for EVA")
Cc: <stable@vger.kernel.org> # v3.15+
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9503/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

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Markos Chandras 2015-03-09 14:54:52 +00:00 • committed by Ralf Baechle

parent 3563c32d65

commit 6eae35485b

1 changed files with 47 additions and 5 deletions

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arch/mips/kernel/unaligned.c

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