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tcg: add "-accel tcg,tb-size" and deprecate "-tb-size"

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-tb-size fits nicely in the new framework for accelerator-specific options.  It
is a very niche option, so insta-deprecate it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2019-11-13 15:16:44 +01:00
parent 12ceaef6ae
commit fe17413247
5 changed files with 53 additions and 11 deletions
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40
accel/tcg/tcg-all.c
View file

@ -34,11 +34,13 @@
#include "include/qapi/error.h"
#include "include/qemu/error-report.h"
#include "include/hw/boards.h"
#include "qapi/qapi-builtin-visit.h"
typedef struct TCGState {
AccelState parent_obj;
bool mttcg_enabled;
unsigned long tb_size;
} TCGState;
#define TYPE_TCG_ACCEL ACCEL_CLASS_NAME("tcg")
@ -46,8 +48,6 @@ typedef struct TCGState {
#define TCG_STATE(obj) \
OBJECT_CHECK(TCGState, (obj), TYPE_TCG_ACCEL)
unsigned long tcg_tb_size;
/* mask must never be zero, except for A20 change call */
static void tcg_handle_interrupt(CPUState *cpu, int mask)
{
@ -126,7 +126,7 @@ static int tcg_init(MachineState *ms)
{
TCGState *s = TCG_STATE(current_machine->accelerator);
tcg_exec_init(tcg_tb_size * 1024 * 1024);
tcg_exec_init(s->tb_size * 1024 * 1024);
cpu_interrupt_handler = tcg_handle_interrupt;
mttcg_enabled = s->mttcg_enabled;
return 0;
@ -167,6 +167,33 @@ static void tcg_set_thread(Object *obj, const char *value, Error **errp)
}
}
static void tcg_get_tb_size(Object *obj, Visitor *v,
const char *name, void *opaque,
Error **errp)
{
TCGState *s = TCG_STATE(obj);
uint32_t value = s->tb_size;
visit_type_uint32(v, name, &value, errp);
}
static void tcg_set_tb_size(Object *obj, Visitor *v,
const char *name, void *opaque,
Error **errp)
{
TCGState *s = TCG_STATE(obj);
Error *error = NULL;
uint32_t value;
visit_type_uint32(v, name, &value, &error);
if (error) {
error_propagate(errp, error);
return;
}
s->tb_size = value;
}
static void tcg_accel_class_init(ObjectClass *oc, void *data)
{
AccelClass *ac = ACCEL_CLASS(oc);
@ -178,6 +205,13 @@ static void tcg_accel_class_init(ObjectClass *oc, void *data)
tcg_get_thread,
tcg_set_thread,
NULL);
object_class_property_add(oc, "tb-size", "int",
tcg_get_tb_size, tcg_set_tb_size,
NULL, NULL, &error_abort);
object_class_property_set_description(oc, "tb-size",
"TCG translation block cache size", &error_abort);
}
static const TypeInfo tcg_accel_type = {