SMF: Populates unsecure HOMER with SC2 instruction.

On an SMF enabled system, if HV engages self save, core must
must transition from HV to UV privilege to accomplish this.
So, before attempting self save, core must execute SC2
instruction with HV privilege inorder to be a UV. Commit is a
partial implementaiton of this solution. It populates a
buffer with SC2 instruction which hostboot will copy to an
unsecure memory.

- Updated attribute tags for MRW Hiding
- Removed writing of ATTR_UNSECURE_HOMER_SIZE in deference
  to attribute default checking

Key_Cronus_Test=PM_REGRESS

Change-Id: Idb5e219e2a5f9b2274602aedc420f390f34f2609
RTC: 202400
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/69655
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Tested-by: HWSV CI <hwsv-ci+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Tested-by: Cronus HW CI <cronushw-ci+hostboot@us.ibm.com>
Reviewed-by: RANGANATHPRASAD G. BRAHMASAMUDRA <prasadbgr@in.ibm.com>
Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>
Dev-Ready: Gregory S. Still <stillgs@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/69661
Reviewed-by: RAJA DAS <rajadas2@in.ibm.com>

0 files changed, 0 insertions, 0 deletions