[Qemu-devel] [PATCH 1/5] acpi/cpu: add cpu hotplug callback function to match hotplug_handler API

[Gu Zheng]

Signed-off-by: Gu Zheng <address@hidden>
---
 hw/acpi/cpu_hotplug.c         |   17 +++++++++++++++++
 include/hw/acpi/cpu_hotplug.h |    3 +++
 2 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/hw/acpi/cpu_hotplug.c b/hw/acpi/cpu_hotplug.c
index 2ad83a0..92c189b 100644
--- a/hw/acpi/cpu_hotplug.c
+++ b/hw/acpi/cpu_hotplug.c
@@ -36,6 +36,23 @@ static const MemoryRegionOps AcpiCpuHotplug_ops = {
     },
 };
 
+void acpi_cpu_plug_cb(ACPIREGS *ar, qemu_irq irq,
+                          AcpiCpuHotplug *g, DeviceState *dev)
+{
+    CPUState *cpu = CPU(dev);
+    CPUClass *k = CPU_GET_CLASS(cpu);
+    int64_t cpu_id;
+
+    ar->gpe.sts[0] |= ACPI_CPU_HOTPLUG_STATUS;
+    cpu_id = k->get_arch_id(cpu);
+    g_assert((cpu_id / 8) < ACPI_GPE_PROC_LEN);
+    g->sts[cpu_id / 8] |= (1 << (cpu_id % 8));
+
+    acpi_update_sci(ar, irq);
+
+    cpu_resume(cpu);
+}
+
 void AcpiCpuHotplug_add(ACPIGPE *gpe, AcpiCpuHotplug *g, CPUState *cpu)
 {
     CPUClass *k = CPU_GET_CLASS(cpu);
diff --git a/include/hw/acpi/cpu_hotplug.h b/include/hw/acpi/cpu_hotplug.h
index 9e5d30c..d025731 100644
--- a/include/hw/acpi/cpu_hotplug.h
+++ b/include/hw/acpi/cpu_hotplug.h
@@ -20,6 +20,9 @@ typedef struct AcpiCpuHotplug {
     uint8_t sts[ACPI_GPE_PROC_LEN];
 } AcpiCpuHotplug;
 
+void acpi_cpu_plug_cb(ACPIREGS *ar, qemu_irq irq,
+                          AcpiCpuHotplug *g, DeviceState *dev);
+
 void AcpiCpuHotplug_add(ACPIGPE *gpe, AcpiCpuHotplug *g, CPUState *cpu);
 
 void AcpiCpuHotplug_init(MemoryRegion *parent, Object *owner,
-- 
1.7.7