hdata/spira: add ibm, secureboot node in P9

In P9, skiboot builds the device tree from the HDAT. These are the
"ibm,secureboot" node changes compared to P8:

- The Container-Verification-Code (CVC), a.k.a. ROM code, is no longer
  stored in a secure ROM with static address. In P9, it is stored in a
  hostboot reserved memory and each service provided also has a version,
  not only an offset.

- The hash-algo property is not provided via HDAT, instead it provides
  the hw-key-hash-size, which is indeed the information required by the
  CVC to verify containers.

This parses the iplparams_sysparams HDAT structure and creates the
"ibm,secureboot", which is bumped to "ibm,secureboot-v2".

In "ibm,secureboot-v2":
- hash-algo property is superseded by hw-key-hash-size.
- container verification code is explicitly described by a child node.
  Added in a subsequent patch.

Signed-off-by: Claudio Carvalho <cclaudio@linux.vnet.ibm.com>
Reviewed-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Reviewed-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>

0 files changed, 0 insertions, 0 deletions