diff options
Diffstat (limited to 'accel/tcg/tcg-all.c')
| -rw-r--r-- | accel/tcg/tcg-all.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/accel/tcg/tcg-all.c b/accel/tcg/tcg-all.c index 1ac0b76515..2eea8c32ee 100644 --- a/accel/tcg/tcg-all.c +++ b/accel/tcg/tcg-all.c @@ -38,6 +38,7 @@ struct TCGState { AccelState parent_obj; bool mttcg_enabled; + int splitwx_enabled; unsigned long tb_size; }; typedef struct TCGState TCGState; @@ -94,6 +95,13 @@ static void tcg_accel_instance_init(Object *obj) TCGState *s = TCG_STATE(obj); s->mttcg_enabled = default_mttcg_enabled(); + + /* If debugging enabled, default "auto on", otherwise off. */ +#ifdef CONFIG_DEBUG_TCG + s->splitwx_enabled = -1; +#else + s->splitwx_enabled = 0; +#endif } bool mttcg_enabled; @@ -102,7 +110,7 @@ static int tcg_init(MachineState *ms) { TCGState *s = TCG_STATE(current_accel()); - tcg_exec_init(s->tb_size * 1024 * 1024); + tcg_exec_init(s->tb_size * 1024 * 1024, s->splitwx_enabled); mttcg_enabled = s->mttcg_enabled; /* @@ -179,6 +187,18 @@ static void tcg_set_tb_size(Object *obj, Visitor *v, s->tb_size = value; } +static bool tcg_get_splitwx(Object *obj, Error **errp) +{ + TCGState *s = TCG_STATE(obj); + return s->splitwx_enabled; +} + +static void tcg_set_splitwx(Object *obj, bool value, Error **errp) +{ + TCGState *s = TCG_STATE(obj); + s->splitwx_enabled = value; +} + static void tcg_accel_class_init(ObjectClass *oc, void *data) { AccelClass *ac = ACCEL_CLASS(oc); @@ -196,6 +216,10 @@ static void tcg_accel_class_init(ObjectClass *oc, void *data) object_class_property_set_description(oc, "tb-size", "TCG translation block cache size"); + object_class_property_add_bool(oc, "split-wx", + tcg_get_splitwx, tcg_set_splitwx); + object_class_property_set_description(oc, "split-wx", + "Map jit pages into separate RW and RX regions"); } static const TypeInfo tcg_accel_type = { |