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X-Received-From: 2a00:1450:4864:20::342 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Replace the ad-hoc qemu_tcg_configure with generic code invoking QOM property getters and setters. More properties (and thus more valid -accel suboptions) will be added in the next patches, which will move accelerator-related "-machine" options to accelerators. Reviewed-by: Marc-Andr=C3=A9 Lureau Signed-off-by: Paolo Bonzini --- accel/tcg/tcg-all.c | 52 +++++++++++++++++++++++++++++++++++++----------= ---- include/sysemu/cpus.h | 2 -- vl.c | 32 ++++++++++++++++--------------- 3 files changed, 55 insertions(+), 31 deletions(-) diff --git a/accel/tcg/tcg-all.c b/accel/tcg/tcg-all.c index 6b000f0..7829f02 100644 --- a/accel/tcg/tcg-all.c +++ b/accel/tcg/tcg-all.c @@ -34,7 +34,17 @@ #include "include/qapi/error.h" #include "include/qemu/error-report.h" #include "include/hw/boards.h" -#include "qemu/option.h" + +typedef struct TCGState { + AccelState parent_obj; + + bool mttcg_enabled; +} TCGState; + +#define TYPE_TCG_ACCEL ACCEL_CLASS_NAME("tcg") + +#define TCG_STATE(obj) \ + OBJECT_CHECK(TCGState, (obj), TYPE_TCG_ACCEL) =20 unsigned long tcg_tb_size; =20 @@ -107,23 +117,33 @@ static bool default_mttcg_enabled(void) =20 static void tcg_accel_instance_init(Object *obj) { - mttcg_enabled =3D default_mttcg_enabled(); + TCGState *s =3D TCG_STATE(obj); + + s->mttcg_enabled =3D default_mttcg_enabled(); } =20 static int tcg_init(MachineState *ms) { + TCGState *s =3D TCG_STATE(current_machine->accelerator); + tcg_exec_init(tcg_tb_size * 1024 * 1024); cpu_interrupt_handler =3D tcg_handle_interrupt; + mttcg_enabled =3D s->mttcg_enabled; return 0; } =20 -void qemu_tcg_configure(QemuOpts *opts, Error **errp) +static char *tcg_get_thread(Object *obj, Error **errp) { - const char *t =3D qemu_opt_get(opts, "thread"); - if (!t) { - return; - } - if (strcmp(t, "multi") =3D=3D 0) { + TCGState *s =3D TCG_STATE(obj); + + return g_strdup(s->mttcg_enabled ? "multi" : "single"); +} + +static void tcg_set_thread(Object *obj, const char *value, Error **errp) +{ + TCGState *s =3D TCG_STATE(obj); + + if (strcmp(value, "multi") =3D=3D 0) { if (TCG_OVERSIZED_GUEST) { error_setg(errp, "No MTTCG when guest word size > hosts"); } else if (use_icount) { @@ -138,12 +158,12 @@ void qemu_tcg_configure(QemuOpts *opts, Error **errp) "than the host provides"); error_printf("This may cause strange/hard to debug errors\= n"); } - mttcg_enabled =3D true; + s->mttcg_enabled =3D true; } - } else if (strcmp(t, "single") =3D=3D 0) { - mttcg_enabled =3D false; + } else if (strcmp(value, "single") =3D=3D 0) { + s->mttcg_enabled =3D false; } else { - error_setg(errp, "Invalid 'thread' setting %s", t); + error_setg(errp, "Invalid 'thread' setting %s", value); } } =20 @@ -153,15 +173,19 @@ static void tcg_accel_class_init(ObjectClass *oc, voi= d *data) ac->name =3D "tcg"; ac->init_machine =3D tcg_init; ac->allowed =3D &tcg_allowed; -} =20 -#define TYPE_TCG_ACCEL ACCEL_CLASS_NAME("tcg") + object_class_property_add_str(oc, "thread", + tcg_get_thread, + tcg_set_thread, + NULL); +} =20 static const TypeInfo tcg_accel_type =3D { .name =3D TYPE_TCG_ACCEL, .parent =3D TYPE_ACCEL, .instance_init =3D tcg_accel_instance_init, .class_init =3D tcg_accel_class_init, + .instance_size =3D sizeof(TCGState), }; =20 static void register_accel_types(void) diff --git a/include/sysemu/cpus.h b/include/sysemu/cpus.h index 32c05f2..3c1da6a 100644 --- a/include/sysemu/cpus.h +++ b/include/sysemu/cpus.h @@ -40,6 +40,4 @@ extern int smp_threads; =20 void list_cpus(const char *optarg); =20 -void qemu_tcg_configure(QemuOpts *opts, Error **errp); - #endif diff --git a/vl.c b/vl.c index b2f00cc..7f2f3fb 100644 --- a/vl.c +++ b/vl.c @@ -293,17 +293,12 @@ static QemuOptsList qemu_accel_opts =3D { .implied_opt_name =3D "accel", .head =3D QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head), .desc =3D { - { - .name =3D "accel", - .type =3D QEMU_OPT_STRING, - .help =3D "Select the type of accelerator", - }, - { - .name =3D "thread", - .type =3D QEMU_OPT_STRING, - .help =3D "Enable/disable multi-threaded TCG", - }, - { /* end of list */ } + /* + * no elements =3D> accept any + * sanity checking will happen later + * when setting accelerator properties + */ + { } }, }; =20 @@ -2711,6 +2706,13 @@ static int do_configure_icount(void *opaque, QemuOpt= s *opts, Error **errp) return 0; } =20 +static int accelerator_set_property(void *opaque, + const char *name, const char *value, + Error **errp) +{ + return object_parse_property_opt(opaque, name, value, "accel", errp); +} + static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **= errp) { bool *p_init_failed =3D opaque; @@ -2725,6 +2727,10 @@ static int do_configure_accelerator(void *opaque, Qe= muOpts *opts, Error **errp) return 0; } accel =3D ACCEL(object_new_with_class(OBJECT_CLASS(ac))); + qemu_opt_foreach(opts, accelerator_set_property, + accel, + &error_fatal); + ret =3D accel_init_machine(accel, current_machine); if (ret < 0) { *p_init_failed =3D true; @@ -2732,10 +2738,6 @@ static int do_configure_accelerator(void *opaque, Qe= muOpts *opts, Error **errp) acc, strerror(-ret)); return 0; } - - if (tcg_enabled()) { - qemu_tcg_configure(opts, &error_fatal); - } return 1; } =20 --=20 1.8.3.1