diff options
| -rw-r--r-- | arch/powerpc/lib/sstep.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c index 855457ed09b5..bf2cd3d42125 100644 --- a/arch/powerpc/lib/sstep.c +++ b/arch/powerpc/lib/sstep.c @@ -1346,6 +1346,9 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs, switch (opcode) { #ifdef __powerpc64__ case 1: + if (!cpu_has_feature(CPU_FTR_ARCH_31)) + return -1; + prefix_r = GET_PREFIX_R(word); ra = GET_PREFIX_RA(suffix); rd = (suffix >> 21) & 0x1f; @@ -2733,6 +2736,9 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs, } break; case 1: /* Prefixed instructions */ + if (!cpu_has_feature(CPU_FTR_ARCH_31)) + return -1; + prefix_r = GET_PREFIX_R(word); ra = GET_PREFIX_RA(suffix); op->update_reg = ra; |