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X-Received-From: 2a00:1450:4864:20::444 Subject: [Qemu-devel] [PATCH v4 28/54] cpu: hook plugin vcpu events 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: , Cc: Eduardo Habkost , Richard Henderson , aaron@os.amperecomputing.com, cota@braap.org, Paolo Bonzini , bobby.prani@gmail.com, =?UTF-8?q?Alex=20Benn=C3=A9e?= , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) From: "Emilio G. Cota" Signed-off-by: Emilio G. Cota Reviewed-by: Richard Henderson Signed-off-by: Alex Benn=C3=A9e --- cpus.c | 10 ++++++++++ exec.c | 2 ++ qom/cpu.c | 2 ++ 3 files changed, 14 insertions(+) diff --git a/cpus.c b/cpus.c index 927a00aa90b..cef94560e31 100644 --- a/cpus.c +++ b/cpus.c @@ -44,6 +44,7 @@ #include "exec/exec-all.h" =20 #include "qemu/thread.h" +#include "qemu/plugin.h" #include "sysemu/cpus.h" #include "sysemu/qtest.h" #include "qemu/main-loop.h" @@ -1241,9 +1242,18 @@ static void qemu_tcg_rr_wait_io_event(void) =20 static void qemu_wait_io_event(CPUState *cpu) { + bool slept =3D false; + while (cpu_thread_is_idle(cpu)) { + if (!slept) { + slept =3D true; + qemu_plugin_vcpu_idle_cb(cpu); + } qemu_cond_wait(cpu->halt_cond, &qemu_global_mutex); } + if (slept) { + qemu_plugin_vcpu_resume_cb(cpu); + } =20 #ifdef _WIN32 /* Eat dummy APC queued by qemu_cpu_kick_thread. */ diff --git a/exec.c b/exec.c index 3e78de3b8f8..65374d0bdc8 100644 --- a/exec.c +++ b/exec.c @@ -974,6 +974,8 @@ void cpu_exec_realizefn(CPUState *cpu, Error **errp) } tlb_init(cpu); =20 + qemu_plugin_vcpu_init_hook(cpu); + #ifndef CONFIG_USER_ONLY if (qdev_get_vmsd(DEVICE(cpu)) =3D=3D NULL) { vmstate_register(NULL, cpu->cpu_index, &vmstate_cpu_common, cpu); diff --git a/qom/cpu.c b/qom/cpu.c index f376f782d83..90ebb214bb2 100644 --- a/qom/cpu.c +++ b/qom/cpu.c @@ -33,6 +33,7 @@ #include "hw/boards.h" #include "hw/qdev-properties.h" #include "trace-root.h" +#include "qemu/plugin.h" =20 CPUInterruptHandler cpu_interrupt_handler; =20 @@ -354,6 +355,7 @@ static void cpu_common_unrealizefn(DeviceState *dev, Er= ror **errp) CPUState *cpu =3D CPU(dev); /* NOTE: latest generic point before the cpu is fully unrealized */ trace_fini_vcpu(cpu); + qemu_plugin_vcpu_exit_hook(cpu); cpu_exec_unrealizefn(cpu); } =20 --=20 2.20.1