diff options
| author | Vishal Verma <vishal.l.verma@intel.com> | 2017-06-28 22:25:00 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2017-06-29 22:50:38 +0200 |
| commit | 14e494542636b7a685c5bf27e695e3bb9ec3fe7d (patch) | |
| tree | ab04daf7eacbc7237c127c3052628c5cac729755 /drivers/nvdimm/label.c | |
| parent | acpi, nfit: constify *_attribute_group (diff) | |
| download | linux-14e494542636b7a685c5bf27e695e3bb9ec3fe7d.tar.xz linux-14e494542636b7a685c5bf27e695e3bb9ec3fe7d.zip | |
libnvdimm, btt: BTT updates for UEFI 2.7 format
The UEFI 2.7 specification defines an updated BTT metadata format,
bumping the revision to 2.0. Add support for the new format, while
retaining compatibility for the old 1.1 format.
Cc: Toshi Kani <toshi.kani@hpe.com>
Cc: Linda Knippers <linda.knippers@hpe.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/label.c')
| -rw-r--r-- | drivers/nvdimm/label.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/nvdimm/label.c b/drivers/nvdimm/label.c index 235f2089fab2..922b68718a1a 100644 --- a/drivers/nvdimm/label.c +++ b/drivers/nvdimm/label.c @@ -21,6 +21,7 @@ #include "nd.h" static guid_t nvdimm_btt_guid; +static guid_t nvdimm_btt2_guid; static guid_t nvdimm_pfn_guid; static guid_t nvdimm_dax_guid; @@ -578,6 +579,8 @@ enum nvdimm_claim_class to_nvdimm_cclass(guid_t *guid) { if (guid_equal(guid, &nvdimm_btt_guid)) return NVDIMM_CCLASS_BTT; + else if (guid_equal(guid, &nvdimm_btt2_guid)) + return NVDIMM_CCLASS_BTT2; else if (guid_equal(guid, &nvdimm_pfn_guid)) return NVDIMM_CCLASS_PFN; else if (guid_equal(guid, &nvdimm_dax_guid)) @@ -593,6 +596,8 @@ static const guid_t *to_abstraction_guid(enum nvdimm_claim_class claim_class, { if (claim_class == NVDIMM_CCLASS_BTT) return &nvdimm_btt_guid; + else if (claim_class == NVDIMM_CCLASS_BTT2) + return &nvdimm_btt2_guid; else if (claim_class == NVDIMM_CCLASS_PFN) return &nvdimm_pfn_guid; else if (claim_class == NVDIMM_CCLASS_DAX) @@ -1158,6 +1163,7 @@ int nd_blk_namespace_label_update(struct nd_region *nd_region, int __init nd_label_init(void) { WARN_ON(guid_parse(NVDIMM_BTT_GUID, &nvdimm_btt_guid)); + WARN_ON(guid_parse(NVDIMM_BTT2_GUID, &nvdimm_btt2_guid)); WARN_ON(guid_parse(NVDIMM_PFN_GUID, &nvdimm_pfn_guid)); WARN_ON(guid_parse(NVDIMM_DAX_GUID, &nvdimm_dax_guid)); |