From 5025bb7fde57de2fa76d3ed4277b8b4aaa1b1a69 Mon Sep 17 00:00:00 2001 From: "Emilio G. Cota" Date: Sun, 21 Oct 2018 13:17:32 -0400 Subject: translate-all: notify plugin code of tb_flush MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Emilio G. Cota Reviewed-by: Richard Henderson Signed-off-by: Alex Bennée --- accel/tcg/translate-all.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'accel') diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index 0a08fcda3e..6d1b0ecd69 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) -- cgit v1.2.3