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Diffstat (limited to 'arch/mips/kernel/traps.c')
| -rw-r--r-- | arch/mips/kernel/traps.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 2d5b16daf331..22f805a73921 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -722,6 +722,10 @@ static int simulate_loongson3_cpucfg(struct pt_regs *regs, perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, regs, 0); + /* Do not emulate on unsupported core models. */ + if (!loongson3_cpucfg_emulation_enabled(¤t_cpu_data)) + return -1; + regs->regs[rd] = loongson3_cpucfg_read_synthesized( ¤t_cpu_data, sel); |