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-rw-r--r--arch/powerpc/lib/sstep.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index a2ded89db73e..a85b82c0e3f3 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -1255,6 +1255,14 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
/*
* Logical instructions
*/
+ case 15: /* isel */
+ mb = (instr >> 6) & 0x1f; /* bc */
+ val = (regs->ccr >> (31 - mb)) & 1;
+ val2 = (ra) ? regs->gpr[ra] : 0;
+
+ regs->gpr[rd] = (val) ? val2 : regs->gpr[rb];
+ goto logical_done;
+
case 26: /* cntlzw */
asm("cntlzw %0,%1" : "=r" (regs->gpr[ra]) :
"r" (regs->gpr[rd]));