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[Qemu-devel] [PATCH 02/15] pc-dimm: introduce realize callback
From: |
Xiao Guangrong |
Subject: |
[Qemu-devel] [PATCH 02/15] pc-dimm: introduce realize callback |
Date: |
Thu, 17 Mar 2016 16:32:48 +0800 |
nvdimm needs to check if the backend memory is large enough to contain
label data and init its memory region when the device is realized, so
introduce realize callback which is called after common dimm has been
realize
Signed-off-by: Xiao Guangrong <address@hidden>
---
hw/mem/pc-dimm.c | 5 +++++
include/hw/mem/pc-dimm.h | 3 +++
2 files changed, 8 insertions(+)
diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c
index 0ba17f0..47ae823 100644
--- a/hw/mem/pc-dimm.c
+++ b/hw/mem/pc-dimm.c
@@ -399,6 +399,7 @@ static void pc_dimm_init(Object *obj)
static void pc_dimm_realize(DeviceState *dev, Error **errp)
{
PCDIMMDevice *dimm = PC_DIMM(dev);
+ PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
if (!dimm->hostmem) {
error_setg(errp, "'" PC_DIMM_MEMDEV_PROP "' property is not set");
@@ -411,6 +412,10 @@ static void pc_dimm_realize(DeviceState *dev, Error **errp)
dimm->node, nb_numa_nodes ? nb_numa_nodes : 1);
return;
}
+
+ if (ddc->realize) {
+ ddc->realize(dimm, errp);
+ }
}
static MemoryRegion *pc_dimm_get_memory_region(PCDIMMDevice *dimm)
diff --git a/include/hw/mem/pc-dimm.h b/include/hw/mem/pc-dimm.h
index 827f1bc..e7b7e5a 100644
--- a/include/hw/mem/pc-dimm.h
+++ b/include/hw/mem/pc-dimm.h
@@ -60,6 +60,8 @@ typedef struct PCDIMMDevice {
/**
* PCDIMMDeviceClass:
+ * @realize: called after common dimm is realized so that the dimm based
+ * devices get the chance to do specified operations.
* @get_memory_region: returns #MemoryRegion associated with @dimm which
* is directly mapped into the physical address space of guest
*/
@@ -68,6 +70,7 @@ typedef struct PCDIMMDeviceClass {
DeviceClass parent_class;
/* public */
+ void (*realize)(PCDIMMDevice *dimm, Error **errp);
MemoryRegion *(*get_memory_region)(PCDIMMDevice *dimm);
} PCDIMMDeviceClass;
--
1.8.3.1
- [Qemu-devel] [PATCH 00/15] NVDIMM: introduce nvdimm label support, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 01/15] pc-dimm: get memory region from ->get_memory_region(), Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 02/15] pc-dimm: introduce realize callback,
Xiao Guangrong <=
- [Qemu-devel] [PATCH 05/15] acpi: add aml_object_type, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 03/15] pc-dimm: keep the state of the whole backend memory, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 04/15] nvdimm: support nvdimm label, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 06/15] acpi: add aml_call5, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 07/15] nvdimm acpi: set HDLE properly, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 08/15] nvdimm acpi: save arg3 of _DSM method, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 10/15] nvdimm acpi: abstract the operations for root device and nvdimm devices, Xiao Guangrong, 2016/03/17