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(parent: e1b85c1) | patch
powerpc: Fix string instr. emulation for 32-bit processes on ppc64
authorJames Yang <James.Yang@freescale.com>
Tue, 25 Jun 2013 16:41:05 +0000 (11:41 -0500)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Sun, 30 Jun 2013 05:49:40 +0000 (15:49 +1000)
commit80aa0fb4940bf8ee52bcb574d74459a7aea45621
tree6b110dea572ce2a63e4cd47bf95ede1e9a8b2ee4tree | snapshot (tar.gz zip)
parente1b85c17bf3e4f2ecbf9ec824c4048a06078100bcommit | diff
powerpc: Fix string instr. emulation for 32-bit processes on ppc64

String instruction emulation would erroneously result in a segfault if
the upper bits of the EA are set and is so high that it fails access
check.  Truncate the EA to 32 bits if the process is 32-bit.

Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/kernel/traps.c diff | blob | blame | history