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[Qemu-devel] [PATCH v8 7/7] s390x/cpu: Allow hotplug of CPUs
From: |
Matthew Rosato |
Subject: |
[Qemu-devel] [PATCH v8 7/7] s390x/cpu: Allow hotplug of CPUs |
Date: |
Thu, 3 Mar 2016 16:30:33 -0500 |
Implement cpu hotplug routine and add the machine hook.
Signed-off-by: Matthew Rosato <address@hidden>
Reviewed-by: David Hildenbrand <address@hidden>
---
hw/s390x/s390-virtio-ccw.c | 13 +++++++++++++
target-s390x/cpu.c | 7 +++++++
2 files changed, 20 insertions(+)
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 7fc1879..174a2f8 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -186,6 +186,18 @@ static HotplugHandler
*s390_get_hotplug_handler(MachineState *machine,
return NULL;
}
+static void s390_hot_add_cpu(const int64_t id, Error **errp)
+{
+ MachineState *machine = MACHINE(qdev_get_machine());
+ Error *err = NULL;
+
+ s390_new_cpu(machine->cpu_model, id, &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+}
+
static void ccw_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
@@ -194,6 +206,7 @@ static void ccw_machine_class_init(ObjectClass *oc, void
*data)
mc->init = ccw_init;
mc->reset = s390_machine_reset;
+ mc->hot_add_cpu = s390_hot_add_cpu;
mc->block_default_type = IF_VIRTIO;
mc->no_cdrom = 1;
mc->no_floppy = 1;
diff --git a/target-s390x/cpu.c b/target-s390x/cpu.c
index d1b7af9..4533c94 100644
--- a/target-s390x/cpu.c
+++ b/target-s390x/cpu.c
@@ -34,6 +34,7 @@
#ifndef CONFIG_USER_ONLY
#include "sysemu/arch_init.h"
#include "sysemu/sysemu.h"
+#include "hw/s390x/sclp.h"
#endif
#define CR0_RESET 0xE0UL
@@ -240,6 +241,12 @@ static void s390_cpu_realizefn(DeviceState *dev, Error
**errp)
#endif
scc->parent_realize(dev, errp);
+
+#if !defined(CONFIG_USER_ONLY)
+ if (dev->hotplugged) {
+ raise_irq_cpu_hotplug();
+ }
+#endif
}
static void s390_cpu_set_id(Object *obj, Visitor *v, const char *name,
--
1.9.1
- [Qemu-devel] [PATCH v8 0/7] Allow hotplug of s390 CPUs, Matthew Rosato, 2016/03/03
- [Qemu-devel] [PATCH v8 1/7] s390x/cpu: Cleanup init in preparation for hotplug, Matthew Rosato, 2016/03/03
- [Qemu-devel] [PATCH v8 2/7] s390x/cpu: Set initial CPU state in common routine, Matthew Rosato, 2016/03/03
- [Qemu-devel] [PATCH v8 3/7] s390x/cpu: Get rid of side effects when creating a vcpu, Matthew Rosato, 2016/03/03
- [Qemu-devel] [PATCH v8 4/7] s390x/cpu: Tolerate max_cpus, Matthew Rosato, 2016/03/03
- [Qemu-devel] [PATCH v8 5/7] s390x/cpu: Add CPU property links, Matthew Rosato, 2016/03/03
- [Qemu-devel] [PATCH v8 7/7] s390x/cpu: Allow hotplug of CPUs,
Matthew Rosato <=
- [Qemu-devel] [PATCH v8 6/7] s390x/cpu: Add error handling to cpu creation, Matthew Rosato, 2016/03/03
- Re: [Qemu-devel] [PATCH v8 6/7] s390x/cpu: Add error handling to cpu creation, David Hildenbrand, 2016/03/04
- Re: [Qemu-devel] [PATCH v8 6/7] s390x/cpu: Add error handling to cpu creation, Bharata B Rao, 2016/03/04
- Re: [Qemu-devel] [PATCH v8 6/7] s390x/cpu: Add error handling to cpu creation, David Hildenbrand, 2016/03/04
- Re: [Qemu-devel] [PATCH v8 6/7] s390x/cpu: Add error handling to cpu creation, Bharata B Rao, 2016/03/04
- Re: [Qemu-devel] [PATCH v8 6/7] s390x/cpu: Add error handling to cpu creation, Bharata B Rao, 2016/03/04
- Re: [Qemu-devel] [PATCH v8 6/7] s390x/cpu: Add error handling to cpu creation, David Hildenbrand, 2016/03/04
- Re: [Qemu-devel] [PATCH v8 6/7] s390x/cpu: Add error handling to cpu creation, Igor Mammedov, 2016/03/04
- Re: [Qemu-devel] [PATCH v8 6/7] s390x/cpu: Add error handling to cpu creation, David Hildenbrand, 2016/03/07