From: Chen Fan <chen.fan.f...@cn.fujitsu.com>
Implement x86_cpu_unrealizefn() for corresponding x86_cpu_realizefn(),
which is mostly used to clean the apic related allocation and vmstates
at here.
Signed-off-by: Chen Fan <chen.fan.f...@cn.fujitsu.com>
Signed-off-by: Gu Zheng <guz.f...@cn.fujitsu.com>
---
hw/i386/kvm/apic.c | 8 +++++++
hw/intc/apic.c | 10 ++++++++
hw/intc/apic_common.c | 23 +++++++++++++++++++-
include/hw/cpu/icc_bus.h | 1 +
include/hw/i386/apic_internal.h | 1 +
target-i386/cpu-qom.h | 1 +
target-i386/cpu.c | 45 +++++++++++++++++++++++++++++++++++++++
7 files changed, 88 insertions(+), 1 deletions(-)
diff --git a/hw/i386/kvm/apic.c b/hw/i386/kvm/apic.c
index e873b50..593ca19 100644
--- a/hw/i386/kvm/apic.c
+++ b/hw/i386/kvm/apic.c
@@ -183,11 +183,19 @@ static void kvm_apic_realize(DeviceState *dev, Error
**errp)
}
}
+static void kvm_apic_unrealize(DeviceState *dev, Error **errp)
+{
+ APICCommonState *s = APIC_COMMON(dev);
+
+ memory_region_destroy(&s->io_memory);
+}
+
static void kvm_apic_class_init(ObjectClass *klass, void *data)
{
APICCommonClass *k = APIC_COMMON_CLASS(klass);
k->realize = kvm_apic_realize;
+ k->unrealize = kvm_apic_unrealize;
k->set_base = kvm_apic_set_base;
k->set_tpr = kvm_apic_set_tpr;
k->get_tpr = kvm_apic_get_tpr;
diff --git a/hw/intc/apic.c b/hw/intc/apic.c
index ef19e55..efdbf5b 100644
--- a/hw/intc/apic.c
+++ b/hw/intc/apic.c
@@ -885,11 +885,21 @@ static void apic_realize(DeviceState *dev, Error **errp)
msi_supported = true;
}
+static void apic_unrealize(DeviceState *dev, Error **errp)
+{
+ APICCommonState *s = APIC_COMMON(dev);
+
+ memory_region_destroy(&s->io_memory);
+ timer_free(s->timer);
+ local_apics[s->idx] = NULL;
+}
+
static void apic_class_init(ObjectClass *klass, void *data)
{
APICCommonClass *k = APIC_COMMON_CLASS(klass);
k->realize = apic_realize;
+ k->unrealize = apic_unrealize;
k->set_base = apic_set_base;
k->set_tpr = apic_set_tpr;
k->get_tpr = apic_get_tpr;
diff --git a/hw/intc/apic_common.c b/hw/intc/apic_common.c
index 029f67d..8d17be1 100644
--- a/hw/intc/apic_common.c
+++ b/hw/intc/apic_common.c
@@ -289,12 +289,13 @@ static int apic_load_old(QEMUFile *f, void *opaque, int
version_id)
return 0;
}
+static int apic_no;
+
static void apic_common_realize(DeviceState *dev, Error **errp)
{
APICCommonState *s = APIC_COMMON(dev);
APICCommonClass *info;
static DeviceState *vapic;
- static int apic_no;
static bool mmio_registered;
if (apic_no >= MAX_APICS) {
@@ -324,6 +325,25 @@ static void apic_common_realize(DeviceState *dev, Error
**errp)
}
+static void apic_common_unrealize(DeviceState *dev, Error **errp)
+{
+ APICCommonState *s = APIC_COMMON(dev);
+ APICCommonClass *info = APIC_COMMON_GET_CLASS(s);
+
+ if (apic_no <= 0) {
+ error_setg(errp, "%s exit failed.",
+ object_get_typename(OBJECT(dev)));
+ return;
+ }
+ apic_no--;
+
+ info->unrealize(dev, errp);
+
+ if (apic_report_tpr_access && info->enable_tpr_reporting) {
+ info->enable_tpr_reporting(s, false);
+ }
+}
+
static void apic_dispatch_pre_save(void *opaque)
{
APICCommonState *s = APIC_COMMON(opaque);
@@ -394,6 +414,7 @@ static void apic_common_class_init(ObjectClass *klass, void
*data)
dc->reset = apic_reset_common;
dc->props = apic_properties_common;
idc->realize = apic_common_realize;
+ idc->unrealize = apic_common_unrealize;
/*
* Reason: APIC and CPU need to be wired up by
* x86_cpu_apic_create()
diff --git a/include/hw/cpu/icc_bus.h b/include/hw/cpu/icc_bus.h
index 98a979f..75ed309 100644
--- a/include/hw/cpu/icc_bus.h
+++ b/include/hw/cpu/icc_bus.h
@@ -67,6 +67,7 @@ typedef struct ICCDeviceClass {
/*< public >*/
DeviceRealize realize;
+ DeviceUnrealize unrealize;
} ICCDeviceClass;
#define TYPE_ICC_DEVICE "icc-device"
diff --git a/include/hw/i386/apic_internal.h b/include/hw/i386/apic_internal.h
index 2c91609..6c9e390 100644
--- a/include/hw/i386/apic_internal.h
+++ b/include/hw/i386/apic_internal.h
@@ -82,6 +82,7 @@ typedef struct APICCommonClass
ICCDeviceClass parent_class;
DeviceRealize realize;
+ DeviceUnrealize unrealize;
void (*set_base)(APICCommonState *s, uint64_t val);
void (*set_tpr)(APICCommonState *s, uint8_t val);
uint8_t (*get_tpr)(APICCommonState *s);
diff --git a/target-i386/cpu-qom.h b/target-i386/cpu-qom.h
index 71a1b97..2239105 100644
--- a/target-i386/cpu-qom.h
+++ b/target-i386/cpu-qom.h
@@ -65,6 +65,7 @@ typedef struct X86CPUClass {
bool kvm_required;
DeviceRealize parent_realize;
+ DeviceUnrealize parent_unrealize;
void (*parent_reset)(CPUState *cpu);
} X86CPUClass;
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 4367bc0..21980ce 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -2712,10 +2712,32 @@ static void x86_cpu_apic_realize(X86CPU *cpu, Error
**errp)
return;
}
}
+
+static void x86_cpu_apic_unrealize(X86CPU *cpu, Error **errp)
+{
+ Error *local_err = NULL;
+
+ if (cpu->apic_state == NULL) {
+ return;
+ }
+
+ object_property_set_bool(OBJECT(cpu->apic_state),
+ false, "realized", &local_err);
+ if (local_err != NULL) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ vmstate_unregister(NULL, &vmstate_apic_common, cpu->apic_state);
+ object_unparent(OBJECT(cpu->apic_state));
+}
#else
static void x86_cpu_apic_realize(X86CPU *cpu, Error **errp)
{
}
+static void x86_cpu_apic_unrealize(X86CPU *cpu, Error **errp)
+{
+}
#endif
static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
@@ -2778,6 +2800,27 @@ out:
}
}
+static void x86_cpu_unrealizefn(DeviceState *dev, Error **errp)
+{
+ X86CPU *cpu = X86_CPU(dev);
+ CPUClass *cc = CPU_GET_CLASS(dev);
+ Error *local_err = NULL;
+
+ if (qdev_get_vmsd(DEVICE(cpu)) == NULL) {
+ vmstate_unregister(NULL, &vmstate_cpu_common, cpu);
+ }
+
+ if (cc->vmsd != NULL) {
+ vmstate_unregister(NULL, cc->vmsd, cpu);
+ }
+
+ x86_cpu_apic_unrealize(cpu, &local_err);
+ if (local_err != NULL) {
+ error_propagate(errp, local_err);
+ return;
+ }
+}
+
/* Enables contiguous-apic-ID mode, for compatibility */
static bool compat_apic_id_mode;
@@ -2957,7 +3000,9 @@ static void x86_cpu_common_class_init(ObjectClass *oc,
void *data)
DeviceClass *dc = DEVICE_CLASS(oc);
xcc->parent_realize = dc->realize;
+ xcc->parent_unrealize = dc->unrealize;
dc->realize = x86_cpu_realizefn;
+ dc->unrealize = x86_cpu_unrealizefn;
dc->bus_type = TYPE_ICC_BUS;
dc->props = x86_cpu_properties;
--
1.7.7
