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The OCC is responsible for detecting the EPOW signal
and triggering the save operation on the NVDIMM.
Therefore, if the OCC is not running we are unprotected
from a poweroff event. PHYP needs to inform the LPARs
using the NV (non-volatile) memory of this state so they
can behave accordingly.
HBRT is responsible for telling PHYP when we get into this state.
There are two ways we can detect this state:
a) HBRT explicitly puts the PM complex into reset
b) PRD detects a specific FIR bit
The message should include this data:
- what state we are in (protected or unprotected)
- which processor is affected
Work for this story will include:
- Definition of the new message
- Creating a utility function to send the message
- Calling utility function to send 'unprotected' message
inside of all pm reset paths at runtime
Change-Id: Ib015d001d47883a247faedabedb0705ba0f1b215
RTC:201181
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/68870
Reviewed-by: Christian R. Geddes <crgeddes@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: TSUNG K. YEUNG <tyeung@us.ibm.com>
Reviewed-by: Roland Veloz <rveloz@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
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