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By definition a single instruction is capable of being an IO instruction. This avoids a problem of triggering a cpu_io_recompile on a non-recorded translation which then fails because it expects tcg_tb_lookup() to succeed unconditionally. The normal use case requires a TB to be able to resolve machine state. The other users of tcg_tb_lookup() are able to tolerate a missing TB if the machine state has been resolved by other means - which in the single-shot case is always true because machine state is synced at the start of a block. Reported-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210415162454.22056-1-alex.bennee@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
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| .. | ||
| atomic_common.c.inc | ||
| atomic_template.h | ||
| cpu-exec-common.c | ||
| cpu-exec.c | ||
| cputlb.c | ||
| internal.h | ||
| meson.build | ||
| plugin-gen.c | ||
| plugin-helpers.h | ||
| tcg-accel-ops-icount.c | ||
| tcg-accel-ops-icount.h | ||
| tcg-accel-ops-mttcg.c | ||
| tcg-accel-ops-mttcg.h | ||
| tcg-accel-ops-rr.c | ||
| tcg-accel-ops-rr.h | ||
| tcg-accel-ops.c | ||
| tcg-accel-ops.h | ||
| tcg-all.c | ||
| tcg-runtime-gvec.c | ||
| tcg-runtime.c | ||
| tcg-runtime.h | ||
| trace-events | ||
| trace.h | ||
| translate-all.c | ||
| translator.c | ||
| user-exec-stub.c | ||
| user-exec.c | ||