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Re: [Qemu-devel] [PATCH 00/15] NVDIMM: introduce nvdimm label support
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH 00/15] NVDIMM: introduce nvdimm label support |
Date: |
Tue, 22 Mar 2016 13:17:17 +0200 |
On Thu, Mar 17, 2016 at 04:32:46PM +0800, Xiao Guangrong wrote:
> This patchset is against commit d4207b223eef3 (fw-cfg: support writeable
> blobs) on pci branch of Michael's git tree and can be found at:
> https://github.com/xiaogr/qemu.git nvdimm-label-v1
I see there have been comments, so feel free to iterate on-list, but
please also remember to repost after 2.6 is out.
Thanks!
> This is the last part of vNVDIMM implementation which introduces nvdimm
> label support
>
> Currently Linux NVDIMM driver does not support namespace operation on this
> kind of PMEM, apply below changes to support dynamical namespace:
>
> @@ -798,7 +823,8 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc
> *a
> continue;
> }
>
> - if (nfit_mem->bdw && nfit_mem->memdev_pmem)
> + //if (nfit_mem->bdw && nfit_mem->memdev_pmem)
> + if (nfit_mem->memdev_pmem)
> flags |= NDD_ALIASING;
>
> You can append a NVDIMM device in guest and do:
> # cd /sys/bus/nd/devices/
> # cd namespace0.0/
> # echo `uuidgen` > uuid
> # echo `expr 1024 \* 1024 \* 128` > size
> then reload nd.pmem.ko
>
> You can see /dev/pmem0 appears
>
> Xiao Guangrong (15):
> pc-dimm: get memory region from ->get_memory_region()
> pc-dimm: introduce realize callback
> pc-dimm: keep the state of the whole backend memory
> nvdimm: support nvdimm label
> acpi: add aml_object_type
> acpi: add aml_call5
> nvdimm acpi: set HDLE properly
> nvdimm acpi: save arg3 of _DSM method
> nvdimm acpi: check UUID
> nvdimm acpi: abstract the operations for root device and nvdimm
> devices
> nvdimm acpi: check revision
> nvdimm acpi: support Get Namespace Label Size function
> nvdimm acpi: support Get Namespace Label Data function
> nvdimm acpi: support Set Namespace Label Data function
> docs: add NVDIMM ACPI documentation
>
> docs/specs/acpi_nvdimm.txt | 132 +++++++++++++++
> hw/acpi/aml-build.c | 22 +++
> hw/acpi/nvdimm.c | 392
> ++++++++++++++++++++++++++++++++++++++++----
> hw/mem/nvdimm.c | 95 +++++++++++
> hw/mem/pc-dimm.c | 21 ++-
> include/hw/acpi/aml-build.h | 3 +
> include/hw/mem/nvdimm.h | 61 ++++++-
> include/hw/mem/pc-dimm.h | 6 +-
> 8 files changed, 694 insertions(+), 38 deletions(-)
> create mode 100644 docs/specs/acpi_nvdimm.txt
>
> --
> 1.8.3.1
- [Qemu-devel] [PATCH 12/15] nvdimm acpi: support Get Namespace Label Size function, (continued)
Re: [Qemu-devel] [PATCH 00/15] NVDIMM: introduce nvdimm label support,
Michael S. Tsirkin <=