Generating a CP and CMS Nucleus › Generate a Nucleus Using a Base Control File

Generate a Nucleus Using a Base Control File

This section contains information for generating a nucleus when you have defined base control files for your system.

Execute CAXABLD

CAXABLD is an CA ACF2 for z/VM exec that runs a CA loader program named CAVMLOAD. CAXABLD is a front‑end to the IBM VMFBLD EXEC that CA ACF2 for z/VM invokes as part of the CAXABLD procedure.

CAVMLOAD reads information from control files that must have a filetype of CAXALOAD. These CAXALOAD control files perform two main functions:

• Specify IBM‑defined entry points that CA ACF2 for z/VM security modules intercept to implement in object‑code‑only form.
• Dynamically manage the LOADLIST modules to augment the function of the LOADLIST EXEC. As a result, you do not need to modify the LOADLIST EXEC. Also, you can modify the CAXALOAD base control file or USER component control file to customize the LOADLIST.

CA ACF2 for z/VM invokes the CAVMLOAD module as part of the CAXABLD procedure. The syntax of the CAXABLD command is:

CAXABLD acf2cntl command

acf2cntl

The filename of the CA ACF2 for z/VM update control file that is applicable to your VM system. The filetype is always CAXALOAD. Create these files during the CA ACF2 for z/VM installation procedure to accommodate the versions of CP and CMS you are running on your system:

• ACFCP generates a CP nucleus that includes CA ACF2 for z/VM Protection
• ACFCMS generates a CMS nucleus that includes CA ACF2 for z/VM protection.

command

The command that generates the system without CA ACF2 for z/VM.

The following examples demonstrate how to use CAXABLD to generate a CP nucleus that includes CA ACF2 for z/VM protection:

• Enter the following:

  CAXABLD ACFCP VMFBLD PPF ACFZnnn CP CPLOAD32 (ALL
  

Whenever you execute CAXABLD, you must specify the CAXALOAD base control filename.

When CAXABLD invokes the CAVMLOAD module to generate your CP or CMS nucleus, it does the following:

• Produces a file named CAXALOAD SUMMARY
• Renames the $$$TLL$$ EXEC procedure the IBM VMFBDNUC EXEC produces to $$$TLL$$ IBMEXEC
• Produces a new exec named $$$TLL$$ EXEC that includes all CAXALOAD modifications to the LOADLIST EXEC.