mirror of https://gitee.com/openkylin/qemu.git
accel: Use QOM classes for accel types
Instead of having a static AccelType array, register a class for each accelerator type, and use class name lookup to find accelerator information. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Eduardo Habkost
Paolo Bonzini
parent
a224655200
commit
b14a0b7469
117
accel.c
117
accel.c
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@ -30,6 +30,7 @@
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#include "sysemu/kvm.h"
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#include "sysemu/qtest.h"
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#include "hw/xen/xen.h"
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#include "qom/object.h"
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int tcg_tb_size;
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static bool tcg_allowed = true;
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@ -40,32 +41,20 @@ static int tcg_init(MachineClass *mc)
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return 0;
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}
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typedef struct AccelType {
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const char *opt_name;
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const char *name;
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int (*available)(void);
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int (*init)(MachineClass *mc);
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bool *allowed;
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} AccelType;
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static AccelType accel_list[] = {
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{ "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
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{ "xen", "Xen", xen_available, xen_init, &xen_allowed },
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{ "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
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{ "qtest", "QTest", qtest_available, qtest_init_accel, &qtest_allowed },
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static const TypeInfo accel_type = {
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.name = TYPE_ACCEL,
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.parent = TYPE_OBJECT,
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.class_size = sizeof(AccelClass),
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.instance_size = sizeof(AccelState),
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};
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/* Lookup AccelType from opt_name. Returns NULL if not found */
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static AccelType *accel_find(const char *opt_name)
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/* Lookup AccelClass from opt_name. Returns NULL if not found */
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static AccelClass *accel_find(const char *opt_name)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
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AccelType *acc = &accel_list[i];
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if (acc->opt_name && strcmp(acc->opt_name, opt_name) == 0) {
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return acc;
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}
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}
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return NULL;
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char *class_name = g_strdup_printf(ACCEL_CLASS_NAME("%s"), opt_name);
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AccelClass *ac = ACCEL_CLASS(object_class_by_name(class_name));
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g_free(class_name);
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return ac;
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}
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int configure_accelerator(MachineClass *mc)
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@ -75,7 +64,7 @@ int configure_accelerator(MachineClass *mc)
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int ret;
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bool accel_initialised = false;
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bool init_failed = false;
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AccelType *acc = NULL;
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AccelClass *acc = NULL;
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p = qemu_opt_get(qemu_get_machine_opts(), "accel");
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if (p == NULL) {
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@ -124,3 +113,83 @@ int configure_accelerator(MachineClass *mc)
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return !accel_initialised;
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}
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static void tcg_accel_class_init(ObjectClass *oc, void *data)
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{
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AccelClass *ac = ACCEL_CLASS(oc);
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ac->name = "tcg";
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ac->available = tcg_available;
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ac->init = tcg_init;
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ac->allowed = &tcg_allowed;
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}
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#define TYPE_TCG_ACCEL ACCEL_CLASS_NAME("tcg")
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static const TypeInfo tcg_accel_type = {
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.name = TYPE_TCG_ACCEL,
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.parent = TYPE_ACCEL,
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.class_init = tcg_accel_class_init,
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};
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static void xen_accel_class_init(ObjectClass *oc, void *data)
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{
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AccelClass *ac = ACCEL_CLASS(oc);
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ac->name = "Xen";
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ac->available = xen_available;
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ac->init = xen_init;
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ac->allowed = &xen_allowed;
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}
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#define TYPE_XEN_ACCEL ACCEL_CLASS_NAME("xen")
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static const TypeInfo xen_accel_type = {
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.name = TYPE_XEN_ACCEL,
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.parent = TYPE_ACCEL,
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.class_init = xen_accel_class_init,
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};
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static void kvm_accel_class_init(ObjectClass *oc, void *data)
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{
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AccelClass *ac = ACCEL_CLASS(oc);
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ac->name = "KVM";
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ac->available = kvm_available;
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ac->init = kvm_init;
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ac->allowed = &kvm_allowed;
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}
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#define TYPE_KVM_ACCEL ACCEL_CLASS_NAME("kvm")
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static const TypeInfo kvm_accel_type = {
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.name = TYPE_KVM_ACCEL,
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.parent = TYPE_ACCEL,
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.class_init = kvm_accel_class_init,
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};
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static void qtest_accel_class_init(ObjectClass *oc, void *data)
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{
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AccelClass *ac = ACCEL_CLASS(oc);
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ac->name = "QTest";
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ac->available = qtest_available;
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ac->init = qtest_init_accel;
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ac->allowed = &qtest_allowed;
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}
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#define TYPE_QTEST_ACCEL ACCEL_CLASS_NAME("qtest")
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static const TypeInfo qtest_accel_type = {
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.name = TYPE_QTEST_ACCEL,
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.parent = TYPE_ACCEL,
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.class_init = qtest_accel_class_init,
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};
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static void register_accel_types(void)
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{
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type_register_static(&accel_type);
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type_register_static(&tcg_accel_type);
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type_register_static(&xen_accel_type);
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type_register_static(&kvm_accel_type);
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type_register_static(&qtest_accel_type);
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}
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type_init(register_accel_types);
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@ -24,6 +24,36 @@
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#define HW_ACCEL_H
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#include "qemu/typedefs.h"
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#include "qom/object.h"
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typedef struct AccelState {
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/*< private >*/
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Object parent_obj;
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} AccelState;
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typedef struct AccelClass {
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/*< private >*/
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ObjectClass parent_class;
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/*< public >*/
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const char *opt_name;
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const char *name;
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int (*available)(void);
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int (*init)(MachineClass *mc);
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bool *allowed;
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} AccelClass;
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#define TYPE_ACCEL "accel"
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#define ACCEL_CLASS_SUFFIX "-" TYPE_ACCEL
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#define ACCEL_CLASS_NAME(a) (a ACCEL_CLASS_SUFFIX)
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#define ACCEL_CLASS(klass) \
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OBJECT_CLASS_CHECK(AccelClass, (klass), TYPE_ACCEL)
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#define ACCEL(obj) \
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OBJECT_CHECK(AccelState, (obj), TYPE_ACCEL)
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#define ACCEL_GET_CLASS(obj) \
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OBJECT_GET_CLASS(AccelClass, (obj), TYPE_ACCEL)
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extern int tcg_tb_size;
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