| Message ID | 20190614171200.21078-21-alex.bennee@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | tcg plugin support | expand |
On 6/14/19 10:11 AM, Alex Bennée wrote: > From: "Emilio G. Cota" <cota@braap.org> > > Plugins might allocate per-TB data that then they get passed each > time a TB is executed (via the *userdata pointer). > > Notify plugin code every time a code cache flush occurs, so > that plugins can then reclaim the memory of the per-TB data. > > Reviewed-by: Alex Bennée <alex.bennee@linaro.org> > Signed-off-by: Emilio G. Cota <cota@braap.org> > --- > accel/tcg/translate-all.c | 6 ++++++ > 1 file changed, 6 insertions(+) Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index 54998e39c6..28a92e6d8b 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -1231,6 +1231,8 @@ static gboolean tb_host_size_iter(gpointer key, gpointer value, gpointer data) /* flush all the translation blocks */ static void do_tb_flush(CPUState *cpu, run_on_cpu_data tb_flush_count) { + bool did_flush = false; + mmap_lock(); /* If it is already been done on request of another CPU, * just retry. @@ -1238,6 +1240,7 @@ static void do_tb_flush(CPUState *cpu, run_on_cpu_data tb_flush_count) if (tb_ctx.tb_flush_count != tb_flush_count.host_int) { goto done; } + did_flush = true; if (DEBUG_TB_FLUSH_GATE) { size_t nb_tbs = tcg_nb_tbs(); @@ -1262,6 +1265,9 @@ static void do_tb_flush(CPUState *cpu, run_on_cpu_data tb_flush_count) done: mmap_unlock(); + if (did_flush) { + qemu_plugin_flush_cb(); + } } void tb_flush(CPUState *cpu)