| What: /sys/firmware/plpks/config |
| Date: February 2023 |
| Contact: Nayna Jain <nayna@linux.ibm.com> |
| Description: This optional directory contains read-only config attributes as |
| defined by the PLPKS implementation. All data is in ASCII |
| format. |
| |
| What: /sys/firmware/plpks/config/version |
| Date: February 2023 |
| Contact: Nayna Jain <nayna@linux.ibm.com> |
| Description: Config version as reported by the hypervisor in ASCII decimal |
| format. |
| |
| What: /sys/firmware/plpks/config/max_object_size |
| Date: February 2023 |
| Contact: Nayna Jain <nayna@linux.ibm.com> |
| Description: Maximum allowed size of objects in the keystore in bytes, |
| represented in ASCII decimal format. |
| |
| This is not necessarily the same as the max size that can be |
| written to an update file as writes can contain more than |
| object data, you should use the size of the update file for |
| that purpose. |
| |
| What: /sys/firmware/plpks/config/total_size |
| Date: February 2023 |
| Contact: Nayna Jain <nayna@linux.ibm.com> |
| Description: Total size of the PLPKS in bytes, represented in ASCII decimal |
| format. |
| |
| What: /sys/firmware/plpks/config/used_space |
| Date: February 2023 |
| Contact: Nayna Jain <nayna@linux.ibm.com> |
| Description: Current space consumed by the key store, in bytes, represented |
| in ASCII decimal format. |
| |
| What: /sys/firmware/plpks/config/supported_policies |
| Date: February 2023 |
| Contact: Nayna Jain <nayna@linux.ibm.com> |
| Description: Bitmask of supported policy flags by the hypervisor, represented |
| as an 8 byte hexadecimal ASCII string. Consult the hypervisor |
| documentation for what these flags are. |
| |
| What: /sys/firmware/plpks/config/signed_update_algorithms |
| Date: February 2023 |
| Contact: Nayna Jain <nayna@linux.ibm.com> |
| Description: Bitmask of flags indicating which algorithms the hypervisor |
| supports for signed update of objects, represented as a 16 byte |
| hexadecimal ASCII string. Consult the hypervisor documentation |
| for what these flags mean. |
| |
| What: /sys/firmware/plpks/config/wrapping_features |
| Date: November 2025 |
| Contact: Srish Srinivasan <ssrish@linux.ibm.com> |
| Description: Bitmask of the wrapping features indicating the wrapping |
| algorithms that are supported for the H_PKS_WRAP_OBJECT requests |
| , represented as a 8 byte hexadecimal ASCII string. Consult the |
| hypervisor documentation for what these flags mean. |
