diff --git a/include/qemu/plugin-event.h b/include/qemu/plugin-event.h index 7056d8427b..1100dae212 100644 --- a/include/qemu/plugin-event.h +++ b/include/qemu/plugin-event.h @@ -20,6 +20,9 @@ enum qemu_plugin_event { QEMU_PLUGIN_EV_VCPU_SYSCALL_RET, QEMU_PLUGIN_EV_FLUSH, QEMU_PLUGIN_EV_ATEXIT, + QEMU_PLUGIN_EV_VCPU_INTERRUPT, + QEMU_PLUGIN_EV_VCPU_EXCEPTION, + QEMU_PLUGIN_EV_VCPU_HOSTCALL, QEMU_PLUGIN_EV_MAX, /* total number of plugin events we support */ }; diff --git a/include/qemu/qemu-plugin.h b/include/qemu/qemu-plugin.h index 08bf366e36..60de4fdd3f 100644 --- a/include/qemu/qemu-plugin.h +++ b/include/qemu/qemu-plugin.h @@ -281,6 +281,22 @@ QEMU_PLUGIN_API void qemu_plugin_register_vcpu_resume_cb(qemu_plugin_id_t id, qemu_plugin_vcpu_simple_cb_t cb); +/** + * qemu_plugin_register_vcpu_discon_cb() - register a discontinuity callback + * @id: plugin ID + * @type: types of discontinuities for which to call the callback + * @cb: callback function + * + * The @cb function is called every time a vCPU receives a discontinuity event + * of the specified type(s), after the vCPU was prepared to handle the event. + * Preparation entails updating the PC, usually to some interrupt handler or + * trap vector entry. + */ +QEMU_PLUGIN_API +void qemu_plugin_register_vcpu_discon_cb(qemu_plugin_id_t id, + enum qemu_plugin_discon_type type, + qemu_plugin_vcpu_discon_cb_t cb); + /** struct qemu_plugin_tb - Opaque handle for a translation block */ struct qemu_plugin_tb; /** struct qemu_plugin_insn - Opaque handle for a translated instruction */ diff --git a/plugins/core.c b/plugins/core.c index ead09fd2f1..40d001d39a 100644 --- a/plugins/core.c +++ b/plugins/core.c @@ -569,6 +569,21 @@ void qemu_plugin_register_vcpu_resume_cb(qemu_plugin_id_t id, plugin_register_cb(id, QEMU_PLUGIN_EV_VCPU_RESUME, cb); } +void qemu_plugin_register_vcpu_discon_cb(qemu_plugin_id_t id, + enum qemu_plugin_discon_type type, + qemu_plugin_vcpu_discon_cb_t cb) +{ + if (type & QEMU_PLUGIN_DISCON_INTERRUPT) { + plugin_register_cb(id, QEMU_PLUGIN_EV_VCPU_INTERRUPT, cb); + } + if (type & QEMU_PLUGIN_DISCON_EXCEPTION) { + plugin_register_cb(id, QEMU_PLUGIN_EV_VCPU_EXCEPTION, cb); + } + if (type & QEMU_PLUGIN_DISCON_HOSTCALL) { + plugin_register_cb(id, QEMU_PLUGIN_EV_VCPU_HOSTCALL, cb); + } +} + void qemu_plugin_register_flush_cb(qemu_plugin_id_t id, qemu_plugin_simple_cb_t cb) {