[Qemu-devel] [RFC PATCH 08/10] i386: implement pc interface cpu_common_unrealizefn() in qom/cpu.c

[Gu Zheng]

From: Chen Fan <address@hidden>

add interface cpu_common_unrealizefn() for emiting vcpu unplug
notifier to ACPI, then ACPI could send sci interrupt
to OS for hot-remove vcpu.

Signed-off-by: Chen Fan <address@hidden>
Signed-off-by: Gu Zheng <address@hidden>
---
 qom/cpu.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/qom/cpu.c b/qom/cpu.c
index f921282..8bb2b4f 100644
--- a/qom/cpu.c
+++ b/qom/cpu.c
@@ -315,6 +315,17 @@ static void cpu_common_realizefn(DeviceState *dev, Error 
**errp)
     }
 }
 
+static void cpu_common_unrealizefn(DeviceState *dev, Error **errp)
+{
+    CPUNotifier notifier;
+
+    notifier.dev = dev;
+    notifier.type = UNPLUG;
+
+    notifier_list_notify(&cpu_hotplug_notifiers, &notifier);
+}
+
+
 static void cpu_common_initfn(Object *obj)
 {
     CPUState *cpu = CPU(obj);
@@ -348,6 +359,7 @@ static void cpu_class_init(ObjectClass *klass, void *data)
     k->gdb_write_register = cpu_common_gdb_write_register;
     k->virtio_is_big_endian = cpu_common_virtio_is_big_endian;
     dc->realize = cpu_common_realizefn;
+    dc->unrealize = cpu_common_unrealizefn;
     /*
      * Reason: CPUs still need special care by board code: wiring up
      * IRQs, adding reset handlers, halting non-first CPUs, ...
-- 
1.7.7