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nvdimm: Add realize, unrealize callbacks to NVDIMMDevice class 

A new subclass inheriting NVDIMMDevice is going to be introduced in
subsequent patches. The new subclass uses the realize and unrealize
callbacks. Add them on NVDIMMClass to appropriately call them as part
of plug-unplug.

Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Acked-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <164396253158.109112.1926755104259023743.stgit@ltczzess4.aus.stglabs.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Shivaprasad G Bhat 2022-02-18 08:34:13 +01:00 committed by Cédric Le Goater
parent c13b8e9973
commit 3e35960bf1
4 changed files with 24 additions and 0 deletions
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16
hw/mem/nvdimm.c
View File

@ -181,10 +181,25 @@ static MemoryRegion *nvdimm_md_get_memory_region(MemoryDeviceState *md,
static void nvdimm_realize(PCDIMMDevice *dimm, Error **errp)
{
NVDIMMDevice *nvdimm = NVDIMM(dimm);
NVDIMMClass *ndc = NVDIMM_GET_CLASS(nvdimm);
if (!nvdimm->nvdimm_mr) {
nvdimm_prepare_memory_region(nvdimm, errp);
}
if (ndc->realize) {
ndc->realize(nvdimm, errp);
}
}
static void nvdimm_unrealize(PCDIMMDevice *dimm)
{
NVDIMMDevice *nvdimm = NVDIMM(dimm);
NVDIMMClass *ndc = NVDIMM_GET_CLASS(nvdimm);
if (ndc->unrealize) {
ndc->unrealize(nvdimm);
}
}
/*
@ -240,6 +255,7 @@ static void nvdimm_class_init(ObjectClass *oc, void *data)
DeviceClass *dc = DEVICE_CLASS(oc);
ddc->realize = nvdimm_realize;
ddc->unrealize = nvdimm_unrealize;
mdc->get_memory_region = nvdimm_md_get_memory_region;
device_class_set_props(dc, nvdimm_properties);

5
hw/mem/pc-dimm.c
View File

@ -216,6 +216,11 @@ static void pc_dimm_realize(DeviceState *dev, Error **errp)
static void pc_dimm_unrealize(DeviceState *dev)
{
PCDIMMDevice *dimm = PC_DIMM(dev);
PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
if (ddc->unrealize) {
ddc->unrealize(dimm);
}
host_memory_backend_set_mapped(dimm->hostmem, false);
}

2
include/hw/mem/nvdimm.h
View File

@ -103,6 +103,8 @@ struct NVDIMMClass {
/* write @size bytes from @buf to NVDIMM label data at @offset. */
void (*write_label_data)(NVDIMMDevice *nvdimm, const void *buf,
uint64_t size, uint64_t offset);
void (*realize)(NVDIMMDevice *nvdimm, Error **errp);
void (*unrealize)(NVDIMMDevice *nvdimm);
};
#define NVDIMM_DSM_MEM_FILE "etc/acpi/nvdimm-mem"

1
include/hw/mem/pc-dimm.h
View File

@ -63,6 +63,7 @@ struct PCDIMMDeviceClass {
/* public */
void (*realize)(PCDIMMDevice *dimm, Error **errp);
void (*unrealize)(PCDIMMDevice *dimm);
};
void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine,