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When instrumenting memory accesses for plugin, we force memory accesses to use the slow path for mmu [1]. This create a situation where we end up calling ptw_setl_slow. This was fixed recently in [2] but the issue still could appear out of plugins use case. Since this function gets called during a cpu_exec, start_exclusive then hangs. This exclusive section was introduced initially for security reasons [3]. I suspect this code path was never triggered, because ptw_setl_slow would always be called transitively from cpu_exec, resulting in a hang. [1] |
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| .. | ||
| bpt_helper.c | ||
| excp_helper.c | ||
| fpu_helper.c | ||
| meson.build | ||
| misc_helper.c | ||
| seg_helper.c | ||
| smm_helper.c | ||
| svm_helper.c | ||
| tcg-cpu.c | ||