IBM 10 SP1 EAL4

5.8.3 securityfs....................................................................................................................................174

5.9 Device drivers....................................................................................................................................174

5.9.1 I/O virtualization on System z....................................................................................................175

5.9.1.1 Interpretive-execution facility............................................................................................175

5.9.1.2 State description.................................................................................................................176

5.9.1.3 Hardware virtualization and simulation..............................................................................177

5.9.2 Character device driver..............................................................................................................178

5.9.3 Block device driver....................................................................................................................179

5.10 System initialization........................................................................................................................179

5.10.1 init............................................................................................................................................180

5.10.2 System x...................................................................................................................................181

5.10.2.1 Boot methods...................................................................................................................181

5.10.2.2 Boot loader.......................................................................................................................181

5.10.2.3 Boot process.....................................................................................................................182

5.10.3 System p...................................................................................................................................185

5.10.3.1 Boot methods...................................................................................................................185

5.10.3.2 Boot loader.......................................................................................................................185

5.10.3.3 Boot process.....................................................................................................................185

5.10.4 System p in LPAR....................................................................................................................187

5.10.4.1 Boot process.....................................................................................................................188

5.10.5 System z...................................................................................................................................191

5.10.5.1 Boot methods...................................................................................................................191

5.10.5.2 Control program...............................................................................................................191

5.10.5.3 Boot process.....................................................................................................................191

5.10.6 eServer 326..............................................................................................................................193

5.10.6.1 Boot methods...................................................................................................................194

5.10.6.2 Boot loader.......................................................................................................................194

5.10.6.3 Boot process.....................................................................................................................194

5.11 Identification and authentication......................................................................................................197

5.11.1 Pluggable Authentication Module............................................................................................197

5.11.1.1 Overview..........................................................................................................................197

5.11.1.2 Configuration terminology...............................................................................................198

5.11.1.3 Modules............................................................................................................................199

5.11.2 Protected databases..................................................................................................................200

5.11.2.1 Access control rules........................................................................................................202

5.11.3 Trusted commands and trusted processes.................................................................................202