target/microblaze: Diagnose invalid insns in delay slots

These cases result in undefined and undocumented behaviour but the
behaviour is deterministic, i.e cores will not lock-up or expose
security issues.  However, RTL will not raise exceptions either.

Therefore, log a GUEST_ERROR and treat these cases as nops, to
avoid corner cases which could put qemu into an invalid state.

Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

0 files changed, 0 insertions, 0 deletions