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From: Igor Mammedov <imammedo@redhat.com>
To: qemu-devel@nongnu.org
Cc: marcel.a@redhat.com, mst@redhat.com,
	vasilis.liaskovitis@profitbricks.com, aliguori@amazon.com,
	pbonzini@redhat.com, afaerber@suse.de
Subject: [Qemu-devel] [RFC 8/8] pc: make PC_MACHINE memory hotplug controller
Date: Thu, 20 Mar 2014 16:01:16 +0100	[thread overview]
Message-ID: <1395327676-29753-9-git-send-email-imammedo@redhat.com> (raw)
In-Reply-To: <1395327676-29753-1-git-send-email-imammedo@redhat.com>

that performs mapping of DIMM into guest's address space

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/i386/pc.c |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 1824c3d..1cef30d 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1445,6 +1445,17 @@ void ioapic_init_gsi(GSIState *gsi_state, const char *parent_name)
     }
 }
 
+static void pc_machine_device_plug_cb(HotplugHandler *hotplug_dev,
+                                      DeviceState *dev, Error **errp)
+{
+   DimmDevice *dimm = DIMM(dev);
+   DimmDeviceClass *ddc = DIMM_GET_CLASS(dimm);
+   PCMachineState *pcms = PC_MACHINE(hotplug_dev);
+   MemoryRegion *mr = ddc->get_memory_region(dimm);
+
+   memory_region_add_subregion(&pcms->hotplug_memory, dimm->start, mr);
+}
+
 void qemu_register_pc_machine(QEMUMachine *m)
 {
     TypeInfo ti = {
@@ -1467,9 +1478,12 @@ static char *pc_dimm_hotplug_path(DeviceState *dev)
 static void pc_machine_class_init(ObjectClass *oc, void *data)
 {
     DeviceClass *dimm_dc = DEVICE_CLASS(object_class_by_name(TYPE_DIMM));
+    HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
 
     /* set board specific link path provider for DIMM device */
     dimm_dc->hotplug_path = pc_dimm_hotplug_path;
+
+    hc->plug = pc_machine_device_plug_cb;
 }
 
 static const TypeInfo pc_machine_info = {
@@ -1478,6 +1492,10 @@ static const TypeInfo pc_machine_info = {
     .abstract = true,
     .instance_size = sizeof(PCMachineState),
     .class_init = pc_machine_class_init,
+    .interfaces = (InterfaceInfo[]) {
+         { TYPE_HOTPLUG_HANDLER },
+         { }
+    },
 };
 
 static void pc_machine_register_types(void)
-- 
1.7.1

      parent reply	other threads:[~2014-03-20 15:02 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-20 15:01 [Qemu-devel] [RFC 0/8] bus-less device hotplug Igor Mammedov
2014-03-20 15:01 ` [Qemu-devel] [RFC 1/8] vl.c: extend -m option to support options for memory hotplug Igor Mammedov
2014-03-20 15:01 ` [Qemu-devel] [RFC 2/8] make machine_class_init() accessible outside of vl.c Igor Mammedov
2014-03-23 15:27   ` Marcel Apfelbaum
2014-03-23 16:22     ` Marcel Apfelbaum
2014-03-20 15:01 ` [Qemu-devel] [RFC 3/8] pc: prepare PC for custom machine state Igor Mammedov
2014-03-23 15:13   ` Marcel Apfelbaum
2014-03-24 10:34     ` Igor Mammedov
2014-03-24 12:28       ` Marcel Apfelbaum
2014-03-24 10:52     ` Andreas Färber
2014-03-24 11:20       ` Michael S. Tsirkin
2014-03-24 11:57         ` Andreas Färber
2014-03-24 12:13       ` Marcel Apfelbaum
2014-03-20 15:01 ` [Qemu-devel] [RFC 4/8] qdev: link based hotplug Igor Mammedov
2014-03-20 16:12   ` Paolo Bonzini
2014-03-20 16:20     ` Igor Mammedov
2014-03-20 18:03       ` Paolo Bonzini
2014-03-21 10:35         ` Igor Mammedov
2014-03-21 11:45           ` Paolo Bonzini
2014-03-24  9:10             ` Igor Mammedov
2014-03-24 12:20           ` Andreas Färber
2014-03-24 13:12             ` Michael S. Tsirkin
2014-03-20 15:01 ` [Qemu-devel] [RFC 5/8] dimm: implement dimm device abstraction Igor Mammedov
2014-03-20 15:01 ` [Qemu-devel] [RFC 6/8] pc: preallocate hotplug links for DIMMDevices Igor Mammedov
2014-03-20 15:01 ` [Qemu-devel] [RFC 7/8] pc: initialize memory hotplug address space Igor Mammedov
2014-03-20 15:01 ` Igor Mammedov [this message]

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