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authorDavid Hildenbrand <david@redhat.com>2018-06-19 15:41:37 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2018-06-28 19:05:33 +0200
commita57d1911222bba79bda543568e925635461ead82 (patch)
tree320b6d880137c4ed35f6c1b820feb145859a6090
parent7943e97b858e64eddf0f3395427e58c5cc00a7d9 (diff)
pc-dimm: merge get_(vmstate_)memory_region()
Importantly, get_vmstate_memory_region() should also fail with a proper error if called before the device is realized. For a PCDIMM, both functions are to return the same thing, so share the implementation. All current users are called after the device has been realized, so we can expect the calls to succeed. Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20180619134141.29478-9-david@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--hw/mem/pc-dimm.c13
-rw-r--r--include/hw/mem/pc-dimm.h3
2 files changed, 7 insertions, 9 deletions
diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c
index 73f0eee4c7..4ff39b59ef 100644
--- a/hw/mem/pc-dimm.c
+++ b/hw/mem/pc-dimm.c
@@ -35,7 +35,8 @@ void pc_dimm_plug(DeviceState *dev, MachineState *machine, uint64_t align,
int slot;
PCDIMMDevice *dimm = PC_DIMM(dev);
PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
- MemoryRegion *vmstate_mr = ddc->get_vmstate_memory_region(dimm);
+ MemoryRegion *vmstate_mr = ddc->get_vmstate_memory_region(dimm,
+ &error_abort);
Error *local_err = NULL;
MemoryRegion *mr;
uint64_t addr;
@@ -90,7 +91,8 @@ void pc_dimm_unplug(DeviceState *dev, MachineState *machine)
{
PCDIMMDevice *dimm = PC_DIMM(dev);
PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
- MemoryRegion *vmstate_mr = ddc->get_vmstate_memory_region(dimm);
+ MemoryRegion *vmstate_mr = ddc->get_vmstate_memory_region(dimm,
+ &error_abort);
MemoryRegion *mr = ddc->get_memory_region(dimm, &error_abort);
memory_device_unplug_region(machine, mr);
@@ -229,11 +231,6 @@ static MemoryRegion *pc_dimm_get_memory_region(PCDIMMDevice *dimm, Error **errp)
return host_memory_backend_get_memory(dimm->hostmem);
}
-static MemoryRegion *pc_dimm_get_vmstate_memory_region(PCDIMMDevice *dimm)
-{
- return host_memory_backend_get_memory(dimm->hostmem);
-}
-
static uint64_t pc_dimm_md_get_addr(const MemoryDeviceState *md)
{
const PCDIMMDevice *dimm = PC_DIMM(md);
@@ -298,7 +295,7 @@ static void pc_dimm_class_init(ObjectClass *oc, void *data)
dc->desc = "DIMM memory module";
ddc->get_memory_region = pc_dimm_get_memory_region;
- ddc->get_vmstate_memory_region = pc_dimm_get_vmstate_memory_region;
+ ddc->get_vmstate_memory_region = pc_dimm_get_memory_region;
mdc->get_addr = pc_dimm_md_get_addr;
/* for a dimm plugged_size == region_size */
diff --git a/include/hw/mem/pc-dimm.h b/include/hw/mem/pc-dimm.h
index cf71247630..5679a80465 100644
--- a/include/hw/mem/pc-dimm.h
+++ b/include/hw/mem/pc-dimm.h
@@ -73,7 +73,8 @@ typedef struct PCDIMMDeviceClass {
/* public */
void (*realize)(PCDIMMDevice *dimm, Error **errp);
MemoryRegion *(*get_memory_region)(PCDIMMDevice *dimm, Error **errp);
- MemoryRegion *(*get_vmstate_memory_region)(PCDIMMDevice *dimm);
+ MemoryRegion *(*get_vmstate_memory_region)(PCDIMMDevice *dimm,
+ Error **errp);
} PCDIMMDeviceClass;
void pc_dimm_plug(DeviceState *dev, MachineState *machine, uint64_t align,