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charset="utf-8" Free cpu->thread in a new AccelOpsClass::destroy_vcpu_thread() handler generic_destroy_vcpu_thread(). vCPU hotunplug related leak reported by Valgrind: =3D=3D102631=3D=3D 8 bytes in 1 blocks are definitely lost in loss record 1= ,037 of 8,555 =3D=3D102631=3D=3D at 0x4C3ADBB: calloc (vg_replace_malloc.c:1117) =3D=3D102631=3D=3D by 0x69EE4CD: g_malloc0 (in /usr/lib64/libglib-2.0.so= .0.5600.4) =3D=3D102631=3D=3D by 0x92443A: kvm_start_vcpu_thread (kvm-accel-ops.c:6= 8) =3D=3D102631=3D=3D by 0x4505C2: qemu_init_vcpu (cpus.c:643) =3D=3D102631=3D=3D by 0x76B4D1: x86_cpu_realizefn (cpu.c:6520) =3D=3D102631=3D=3D by 0x9344A7: device_set_realized (qdev.c:531) =3D=3D102631=3D=3D by 0x93E329: property_set_bool (object.c:2273) =3D=3D102631=3D=3D by 0x93C2F8: object_property_set (object.c:1408) =3D=3D102631=3D=3D by 0x940796: object_property_set_qobject (qom-qobject= .c:28) =3D=3D102631=3D=3D by 0x93C663: object_property_set_bool (object.c:1477) =3D=3D102631=3D=3D by 0x933D3B: qdev_realize (qdev.c:333) =3D=3D102631=3D=3D by 0x455EC4: qdev_device_add_from_qdict (qdev-monitor= .c:713) Signed-off-by: Mark Kanda Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- accel/accel-common.c | 6 ++++++ accel/hvf/hvf-accel-ops.c | 1 + accel/kvm/kvm-accel-ops.c | 1 + accel/qtest/qtest.c | 1 + accel/tcg/tcg-accel-ops.c | 1 + accel/xen/xen-all.c | 1 + include/sysemu/accel-ops.h | 2 ++ target/i386/hax/hax-accel-ops.c | 1 + target/i386/nvmm/nvmm-accel-ops.c | 1 + target/i386/whpx/whpx-accel-ops.c | 1 + 10 files changed, 16 insertions(+) diff --git a/accel/accel-common.c b/accel/accel-common.c index 7b8ec7e0f7..623df43cc3 100644 --- a/accel/accel-common.c +++ b/accel/accel-common.c @@ -28,6 +28,7 @@ =20 #include "cpu.h" #include "hw/core/accel-cpu.h" +#include "sysemu/accel-ops.h" =20 #ifndef CONFIG_USER_ONLY #include "accel-softmmu.h" @@ -135,3 +136,8 @@ static void register_accel_types(void) } =20 type_init(register_accel_types); + +void generic_destroy_vcpu_thread(CPUState *cpu) +{ + g_free(cpu->thread); +} diff --git a/accel/hvf/hvf-accel-ops.c b/accel/hvf/hvf-accel-ops.c index 54457c76c2..b23a67881c 100644 --- a/accel/hvf/hvf-accel-ops.c +++ b/accel/hvf/hvf-accel-ops.c @@ -467,6 +467,7 @@ static void hvf_accel_ops_class_init(ObjectClass *oc, v= oid *data) AccelOpsClass *ops =3D ACCEL_OPS_CLASS(oc); =20 ops->create_vcpu_thread =3D hvf_start_vcpu_thread; + ops->destroy_vcpu_thread =3D generic_destroy_vcpu_thread; ops->kick_vcpu_thread =3D hvf_kick_vcpu_thread; =20 ops->synchronize_post_reset =3D hvf_cpu_synchronize_post_reset; diff --git a/accel/kvm/kvm-accel-ops.c b/accel/kvm/kvm-accel-ops.c index c4244a23c6..5a7a9ae79c 100644 --- a/accel/kvm/kvm-accel-ops.c +++ b/accel/kvm/kvm-accel-ops.c @@ -89,6 +89,7 @@ static void kvm_accel_ops_class_init(ObjectClass *oc, voi= d *data) AccelOpsClass *ops =3D ACCEL_OPS_CLASS(oc); =20 ops->create_vcpu_thread =3D kvm_start_vcpu_thread; + ops->destroy_vcpu_thread =3D generic_destroy_vcpu_thread; ops->cpu_thread_is_idle =3D kvm_vcpu_thread_is_idle; ops->cpus_are_resettable =3D kvm_cpus_are_resettable; ops->synchronize_post_reset =3D kvm_cpu_synchronize_post_reset; diff --git a/accel/qtest/qtest.c b/accel/qtest/qtest.c index f6056ac836..ba8573fc2c 100644 --- a/accel/qtest/qtest.c +++ b/accel/qtest/qtest.c @@ -51,6 +51,7 @@ static void qtest_accel_ops_class_init(ObjectClass *oc, v= oid *data) AccelOpsClass *ops =3D ACCEL_OPS_CLASS(oc); =20 ops->create_vcpu_thread =3D dummy_start_vcpu_thread; + ops->destroy_vcpu_thread =3D generic_destroy_vcpu_thread; ops->get_virtual_clock =3D qtest_get_virtual_clock; }; =20 diff --git a/accel/tcg/tcg-accel-ops.c b/accel/tcg/tcg-accel-ops.c index ea7dcad674..527592c4d7 100644 --- a/accel/tcg/tcg-accel-ops.c +++ b/accel/tcg/tcg-accel-ops.c @@ -94,6 +94,7 @@ void tcg_handle_interrupt(CPUState *cpu, int mask) =20 static void tcg_accel_ops_init(AccelOpsClass *ops) { + ops->destroy_vcpu_thread =3D generic_destroy_vcpu_thread; if (qemu_tcg_mttcg_enabled()) { ops->create_vcpu_thread =3D mttcg_start_vcpu_thread; ops->kick_vcpu_thread =3D mttcg_kick_vcpu_thread; diff --git a/accel/xen/xen-all.c b/accel/xen/xen-all.c index 69aa7d018b..0efda554cc 100644 --- a/accel/xen/xen-all.c +++ b/accel/xen/xen-all.c @@ -220,6 +220,7 @@ static void xen_accel_ops_class_init(ObjectClass *oc, v= oid *data) AccelOpsClass *ops =3D ACCEL_OPS_CLASS(oc); =20 ops->create_vcpu_thread =3D dummy_start_vcpu_thread; + ops->destroy_vcpu_thread =3D generic_destroy_vcpu_thread; } =20 static const TypeInfo xen_accel_ops_type =3D { diff --git a/include/sysemu/accel-ops.h b/include/sysemu/accel-ops.h index e296b27b82..fac7d6b34e 100644 --- a/include/sysemu/accel-ops.h +++ b/include/sysemu/accel-ops.h @@ -46,4 +46,6 @@ struct AccelOpsClass { int64_t (*get_elapsed_ticks)(void); }; =20 +/* free vcpu thread structures */ +void generic_destroy_vcpu_thread(CPUState *cpu); #endif /* ACCEL_OPS_H */ diff --git a/target/i386/hax/hax-accel-ops.c b/target/i386/hax/hax-accel-op= s.c index 136630e9b2..b6ef246cbb 100644 --- a/target/i386/hax/hax-accel-ops.c +++ b/target/i386/hax/hax-accel-ops.c @@ -79,6 +79,7 @@ static void hax_accel_ops_class_init(ObjectClass *oc, voi= d *data) AccelOpsClass *ops =3D ACCEL_OPS_CLASS(oc); =20 ops->create_vcpu_thread =3D hax_start_vcpu_thread; + ops->destroy_vcpu_thread =3D generic_destroy_vcpu_thread; ops->kick_vcpu_thread =3D hax_kick_vcpu_thread; =20 ops->synchronize_post_reset =3D hax_cpu_synchronize_post_reset; diff --git a/target/i386/nvmm/nvmm-accel-ops.c b/target/i386/nvmm/nvmm-acce= l-ops.c index f788f75289..ff9033127a 100644 --- a/target/i386/nvmm/nvmm-accel-ops.c +++ b/target/i386/nvmm/nvmm-accel-ops.c @@ -88,6 +88,7 @@ static void nvmm_accel_ops_class_init(ObjectClass *oc, vo= id *data) AccelOpsClass *ops =3D ACCEL_OPS_CLASS(oc); =20 ops->create_vcpu_thread =3D nvmm_start_vcpu_thread; + ops->destroy_vcpu_thread =3D generic_destroy_vcpu_thread; ops->kick_vcpu_thread =3D nvmm_kick_vcpu_thread; =20 ops->synchronize_post_reset =3D nvmm_cpu_synchronize_post_reset; diff --git a/target/i386/whpx/whpx-accel-ops.c b/target/i386/whpx/whpx-acce= l-ops.c index 1d30e4e2ed..f4ec6b3518 100644 --- a/target/i386/whpx/whpx-accel-ops.c +++ b/target/i386/whpx/whpx-accel-ops.c @@ -93,6 +93,7 @@ static void whpx_accel_ops_class_init(ObjectClass *oc, vo= id *data) AccelOpsClass *ops =3D ACCEL_OPS_CLASS(oc); =20 ops->create_vcpu_thread =3D whpx_start_vcpu_thread; + ops->destroy_vcpu_thread =3D generic_destroy_vcpu_thread; ops->kick_vcpu_thread =3D whpx_kick_vcpu_thread; ops->cpu_thread_is_idle =3D whpx_vcpu_thread_is_idle; =20 --=20 2.27.0