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| author | Shivaprasad G Bhat | 2020-02-10 05:56:31 +0100 |
|---|---|---|
| committer | David Gibson | 2020-02-20 23:15:04 +0100 |
| commit | ee3a71e36654317b14ede0290e87628f8b79f850 (patch) | |
| tree | c42f6057545d006d23cae4b25aa66c9f16eb6a4c /include/hw/ppc/spapr_drc.h | |
| parent | nvdimm: add uuid property to nvdimm (diff) | |
| download | qemu-ee3a71e36654317b14ede0290e87628f8b79f850.tar.gz qemu-ee3a71e36654317b14ede0290e87628f8b79f850.tar.xz qemu-ee3a71e36654317b14ede0290e87628f8b79f850.zip | |
spapr: Add NVDIMM device support
Add support for NVDIMM devices for sPAPR. Piggyback on existing nvdimm
device interface in QEMU to support virtual NVDIMM devices for Power.
Create the required DT entries for the device (some entries have
dummy values right now).
The patch creates the required DT node and sends a hotplug
interrupt to the guest. Guest is expected to undertake the normal
DR resource add path in response and start issuing PAPR SCM hcalls.
The device support is verified based on the machine version unlike x86.
This is how it can be used ..
Ex :
For coldplug, the device to be added in qemu command line as shown below
-object memory-backend-file,id=memnvdimm0,prealloc=yes,mem-path=/tmp/nvdimm0,share=yes,size=1073872896
-device nvdimm,label-size=128k,uuid=75a3cdd7-6a2f-4791-8d15-fe0a920e8e9e,memdev=memnvdimm0,id=nvdimm0,slot=0
For hotplug, the device to be added from monitor as below
object_add memory-backend-file,id=memnvdimm0,prealloc=yes,mem-path=/tmp/nvdimm0,share=yes,size=1073872896
device_add nvdimm,label-size=128k,uuid=75a3cdd7-6a2f-4791-8d15-fe0a920e8e9e,memdev=memnvdimm0,id=nvdimm0,slot=0
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
[Early implementation]
Message-Id: <158131058078.2897.12767731856697459923.stgit@lep8c.aus.stglabs.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include/hw/ppc/spapr_drc.h')
| -rw-r--r-- | include/hw/ppc/spapr_drc.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/hw/ppc/spapr_drc.h b/include/hw/ppc/spapr_drc.h index 83f03cc577..df3d958a66 100644 --- a/include/hw/ppc/spapr_drc.h +++ b/include/hw/ppc/spapr_drc.h @@ -78,6 +78,13 @@ #define SPAPR_DRC_PHB(obj) OBJECT_CHECK(SpaprDrc, (obj), \ TYPE_SPAPR_DRC_PHB) +#define TYPE_SPAPR_DRC_PMEM "spapr-drc-pmem" +#define SPAPR_DRC_PMEM_GET_CLASS(obj) \ + OBJECT_GET_CLASS(SpaprDrcClass, obj, TYPE_SPAPR_DRC_PMEM) +#define SPAPR_DRC_PMEM_CLASS(klass) \ + OBJECT_CLASS_CHECK(SpaprDrcClass, klass, TYPE_SPAPR_DRC_PMEM) +#define SPAPR_DRC_PMEM(obj) OBJECT_CHECK(SpaprDrc, (obj), \ + TYPE_SPAPR_DRC_PMEM) /* * Various hotplug types managed by SpaprDrc * @@ -95,6 +102,7 @@ typedef enum { SPAPR_DR_CONNECTOR_TYPE_SHIFT_VIO = 3, SPAPR_DR_CONNECTOR_TYPE_SHIFT_PCI = 4, SPAPR_DR_CONNECTOR_TYPE_SHIFT_LMB = 8, + SPAPR_DR_CONNECTOR_TYPE_SHIFT_PMEM = 9, } SpaprDrcTypeShift; typedef enum { @@ -104,6 +112,7 @@ typedef enum { SPAPR_DR_CONNECTOR_TYPE_VIO = 1 << SPAPR_DR_CONNECTOR_TYPE_SHIFT_VIO, SPAPR_DR_CONNECTOR_TYPE_PCI = 1 << SPAPR_DR_CONNECTOR_TYPE_SHIFT_PCI, SPAPR_DR_CONNECTOR_TYPE_LMB = 1 << SPAPR_DR_CONNECTOR_TYPE_SHIFT_LMB, + SPAPR_DR_CONNECTOR_TYPE_PMEM = 1 << SPAPR_DR_CONNECTOR_TYPE_SHIFT_PMEM, } SpaprDrcType; /* |