nvdimm(4): Only expose namespaces for accessible data SPAs
Apply the same user accessible filter to namespaces as is applied to full-SPA devices. Also, explicitly filter out control region SPAs which don't expose the nvdimm data area. Reviewed by: cem Approved by: scottl (mentor) MFC after: 1 week Sponsored by: Intel Corporation Differential Revision: https://reviews.freebsd.org/D21987
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=354645
@ -144,7 +144,9 @@ nvdimm_root_create_spas(struct nvdimm_root_dev *dev, ACPI_TABLE_NFIT *nfitbl)
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free(spa_mapping, M_NVDIMM_ACPI);
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break;
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}
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nvdimm_create_namespaces(spa_mapping, nfitbl);
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if (nvdimm_spa_type_user_accessible(spa_type) &&
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spa_type != SPA_TYPE_CONTROL_REGION)
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nvdimm_create_namespaces(spa_mapping, nfitbl);
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SLIST_INSERT_HEAD(&dev->spas, spa_mapping, link);
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}
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free(spas, M_NVDIMM_ACPI);
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@ -155,6 +155,15 @@ nvdimm_spa_type_from_uuid(struct uuid *uuid)
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return (SPA_TYPE_UNKNOWN);
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}
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bool
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nvdimm_spa_type_user_accessible(enum SPA_mapping_type spa_type)
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{
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if ((int)spa_type < 0 || spa_type >= nitems(nvdimm_SPA_uuid_list))
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return (false);
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return (nvdimm_SPA_uuid_list[spa_type].u_usr_acc);
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}
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static vm_memattr_t
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nvdimm_spa_memattr(uint64_t efi_mem_flags)
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{
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@ -166,6 +166,7 @@ void acpi_nfit_get_flush_addrs(ACPI_TABLE_NFIT *nfitbl, nfit_handle_t dimm,
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uint64_t ***listp, int *countp);
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enum SPA_mapping_type nvdimm_spa_type_from_name(const char *);
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enum SPA_mapping_type nvdimm_spa_type_from_uuid(struct uuid *);
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bool nvdimm_spa_type_user_accessible(enum SPA_mapping_type);
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struct nvdimm_dev *nvdimm_find_by_handle(nfit_handle_t nv_handle);
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int nvdimm_spa_init(struct SPA_mapping *spa, ACPI_NFIT_SYSTEM_ADDRESS *nfitaddr,
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enum SPA_mapping_type spa_type);
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