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authorEmilio G. Cota <cota@braap.org>2018-10-21 13:17:32 -0400
committerAlex Bennée <alex.bennee@linaro.org>2019-10-28 15:12:38 +0000
commit5025bb7fde57de2fa76d3ed4277b8b4aaa1b1a69 (patch)
tree3bea847c8374ef916874e7a2847a3070efe483e1 /accel
parent235537fa7347a151ebd7a755e81819a52b3b2195 (diff)
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translate-all: notify plugin code of tb_flush
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> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Diffstat (limited to 'accel')
-rw-r--r--accel/tcg/translate-all.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c
index 0a08fcd..6d1b0ec 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)