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[Qemu-ppc] [RFC PATCH 2/4] mem: implement memory_device_set_region_size
From: |
Shivaprasad G Bhat |
Subject: |
[Qemu-ppc] [RFC PATCH 2/4] mem: implement memory_device_set_region_size |
Date: |
Tue, 05 Feb 2019 23:26:14 -0600 |
User-agent: |
StGit/0.17.1-dirty |
Required for PAPR NVDIMM implementation. Need memory_device_set_region_size
for aligning the size to the SCM block size.
Signed-off-by: Shivaprasad G Bhat <address@hidden>
---
hw/mem/memory-device.c | 15 +++++++++++++++
include/hw/mem/memory-device.h | 2 ++
2 files changed, 17 insertions(+)
diff --git a/hw/mem/memory-device.c b/hw/mem/memory-device.c
index 5f2c408036..ad0419e203 100644
--- a/hw/mem/memory-device.c
+++ b/hw/mem/memory-device.c
@@ -330,6 +330,21 @@ uint64_t memory_device_get_region_size(const
MemoryDeviceState *md,
return memory_region_size(mr);
}
+void memory_device_set_region_size(const MemoryDeviceState *md,
+ uint64_t size, Error **errp)
+{
+ const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(md);
+ MemoryRegion *mr;
+
+ /* dropping const here is fine as we don't touch the memory region */
+ mr = mdc->get_memory_region((MemoryDeviceState *)md, errp);
+ if (!mr) {
+ return;
+ }
+
+ memory_region_set_size(mr, size);
+}
+
static const TypeInfo memory_device_info = {
.name = TYPE_MEMORY_DEVICE,
.parent = TYPE_INTERFACE,
diff --git a/include/hw/mem/memory-device.h b/include/hw/mem/memory-device.h
index 0293a96abb..ba9b72fd28 100644
--- a/include/hw/mem/memory-device.h
+++ b/include/hw/mem/memory-device.h
@@ -103,5 +103,7 @@ void memory_device_plug(MemoryDeviceState *md, MachineState
*ms);
void memory_device_unplug(MemoryDeviceState *md, MachineState *ms);
uint64_t memory_device_get_region_size(const MemoryDeviceState *md,
Error **errp);
+void memory_device_set_region_size(const MemoryDeviceState *md,
+ uint64_t size, Error **errp);
#endif