| commit | 2a7567a2f3a2f2d1580f104efd7ddc67e598b071 | |
| author | Richard Henderson <richard.henderson@linaro.org> | |
| Tue, 1 Sep 2020 18:42:08 +0000 (1 11:42 -0700) | ||
| committer | Richard Henderson <richard.henderson@linaro.org> | |
| Mon, 7 Sep 2020 19:58:08 +0000 (7 12:58 -0700) | ||
| tree | 5097a9c22ae918e4e2c42497f1f7be6bfd8129bd | treesnapshot (tar.gz zip) |
| parent | 4059bd90eb29fb837636db278d6907f4df0f6158 | commitdiff |
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>
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>
| target/microblaze/translate.c | diffblobblamehistory |