target/microblaze: mbar: Trap sleeps from user-space
Trap mbar-sleeps from user-space. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reported-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
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@ -1250,6 +1250,11 @@ static void dec_br(DisasContext *dc)
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LOG_DIS("sleep\n");
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LOG_DIS("sleep\n");
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if (trap_userspace(dc, true)) {
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/* Sleep is a privileged instruction. */
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return;
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}
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t_sync_flags(dc);
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t_sync_flags(dc);
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tcg_gen_st_i32(tmp_1, cpu_env,
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tcg_gen_st_i32(tmp_1, cpu_env,
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-offsetof(MicroBlazeCPU, env)
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-offsetof(MicroBlazeCPU, env)
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