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dcd092a063
We already attempted to set and clear can_do_io before the first and last insns, but only used the initial value of max_insns and the call to translator_io_start to find those insns. Now that we track insn_start in DisasContextBase, and now that we have emit_before_op, we can wait until we have finished translation to identify the true first and last insns and emit the sets of can_do_io at that time. This fixes the case of a translation block which crossed a page boundary, and for which the second page turned out to be mmio. In this case we truncate the block, and the previous logic for can_do_io could leave a block with a single insn with can_do_io set to false, which would fail an assertion in cpu_io_recompile. Reported-by: Jørgen Hansen <Jorgen.Hansen@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Tested-by: Jørgen Hansen <Jorgen.Hansen@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> |
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.. | ||
atomic_common.c.inc | ||
atomic_template.h | ||
cpu-exec-common.c | ||
cpu-exec.c | ||
cputlb.c | ||
icount-common.c | ||
internal-common.h | ||
internal-target.h | ||
ldst_atomicity.c.inc | ||
ldst_common.c.inc | ||
meson.build | ||
monitor.c | ||
plugin-gen.c | ||
plugin-helpers.h | ||
tb-context.h | ||
tb-hash.h | ||
tb-jmp-cache.h | ||
tb-maint.c | ||
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 | ||
watchpoint.c |