| commit | 5762e08344bd7c5bfc41030f74c4ab6ce6e461d0 | |
| author | Paul Mackerras <paulus@ozlabs.org> | |
| Wed, 30 Aug 2017 04:12:30 +0000 (30 14:12 +1000) | ||
| committer | Michael Ellerman <mpe@ellerman.id.au> | |
| Fri, 1 Sep 2017 06:39:50 +0000 (1 16:39 +1000) | ||
| tree | 98eb258e2e8b09cc84932ffd7b65cd3c87bf37ba | treesnapshot (tar.gz zip) |
| parent | f1bbb99f41e06d5ba93ea8eafacd96a7a71d0c7d | commitdiff |
powerpc: Don't update CR0 in emulation of popcnt, prty, bpermd instructions
The architecture shows the least-significant bit of the instruction
word as reserved for the popcnt[bwd], prty[wd] and bpermd
instructions, that is, these instructions never update CR0.
Therefore this changes the emulation of these instructions to
skip the CR0 update.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The architecture shows the least-significant bit of the instruction
word as reserved for the popcnt[bwd], prty[wd] and bpermd
instructions, that is, these instructions never update CR0.
Therefore this changes the emulation of these instructions to
skip the CR0 update.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| arch/powerpc/lib/sstep.c | diffblobblamehistory |