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Secure Boot: Close SBE Security Backdoor
During a key transition process from dev to prod keys the lab override bit does not get unset and does not get customized into SBE at the time of the transition. Only when the system reaches istep 10.2 with prod keys does the bit get reset. This change customizes the bit at the time of the transition, which ensures the system is secure all the way through IPL with prod keys. Change-Id: I1343d2dd95aa4549b92e46ebcb9df142303c1f0b RTC: 188958 Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/56127 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: Michael Baiocchi <mbaiocch@us.ibm.com> Reviewed-by: Nicholas E. Bofferding <bofferdn@us.ibm.com> Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
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