diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2016-10-15 15:33:52 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-10-19 08:57:33 -0700 |
| commit | 42237e393f64d619ed56e17fbf8fd27526485695 (patch) | |
| tree | 51789f92c92ae65b02ef4e8834c05ee17045b9b8 /drivers/nvdimm/dimm_devs.c | |
| parent | 8d7c22ac0c036978a072b7e13c607b5402c474e0 (diff) | |
libnvdimm: allow a platform to force enable label support
Platforms like QEMU-KVM implement an NFIT table and label DSMs.
However, since that environment does not define an aliased
configuration, the labels are currently ignored and the kernel registers
a single full-sized pmem-namespace per region. Now that the kernel
supports sub-divisions of pmem regions the labels have a purpose.
Arrange for the labels to be honored when we find an existing / valid
namespace index block.
Cc: <qemu-devel@nongnu.org>
Cc: Haozhong Zhang <haozhong.zhang@intel.com>
Cc: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/dimm_devs.c')
| -rw-r--r-- | drivers/nvdimm/dimm_devs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/nvdimm/dimm_devs.c b/drivers/nvdimm/dimm_devs.c index d614493ad5ac..0eedc49e0d47 100644 --- a/drivers/nvdimm/dimm_devs.c +++ b/drivers/nvdimm/dimm_devs.c @@ -184,6 +184,13 @@ int nvdimm_set_config_data(struct nvdimm_drvdata *ndd, size_t offset, return rc; } +void nvdimm_set_aliasing(struct device *dev) +{ + struct nvdimm *nvdimm = to_nvdimm(dev); + + nvdimm->flags |= NDD_ALIASING; +} + static void nvdimm_release(struct device *dev) { struct nvdimm *nvdimm = to_nvdimm(dev); |