Date : 12/20/2007
Version : 1.2

Title : "_boot-script" and "_delete-all" properties in variables
        node under "Update MD"

Modifications to the "mini MD" described in FWARC/2007/294.

#1
The name "mini MD" as described by FWARC/2007/294 is modified for clarity
to "Update MD".  The "Update MD" is defined as follows.

Update MD - updates to MD passed to OpenBoot by vBSC upon request (part of
            domain service) 

            
The term "mini MD" is also used for some other purpose and causes confusion.
The new name is more appropriate to describe the intended purpose.

This name change do not change any interfaces.  The name of the MD itself
are not part of any other interfaces either.

       
#2
New properties called "_boot-script" is added to the "variables" node
of the "Update MD".  The contents of "_boot-script" if non-NULL are
interpreted after device probe phase and prior to decision to automatically
boot is made.  Thus, if this string property is present then it will
be interpreted by OpenBoot prior to interpreting the contents
of either "boot-command" or "reboot-command" variables or reboot 
parameter buffer.


   Name           Tag         Required?       Description 
   --------------------------------------------------------------------- 
   _boot-script  PROP_STR         No          A string property, if present, is 
                                              interpreted by OpenBoot.
                                              The string consists of one or more
                                              OpenBoot words which are
                                              interpreted by OpenBoot.
                                              See FWARC/2002/228 for details
                                              on concept of boot script

#3
New properties called "_delete-all" is added to the "variables" node of
the "Update MD".  This property is of type PROP_VAL but property value have
no meaning for OpenBoot.  The presence of this property tells OpenBoot
to reset variables to its factory default settings.  OpenBoot should
check for the presence of this variable before accessing any of
the variables.  If this property exists then set all of the variables
to its default state.


   Name           Tag         Required?       Description
   ---------------------------------------------------------------------
   _delete-all  PROP_VAL         No           If present, OpenBoot
                                              resets values of all
                                              variables to its default
                                              values.

                                              
 
Interface Table :

Imported Interfaces :
                
    Interface              Classification     Comments
    ====================================================================

    sun4v Machine           Sun Private     MD nodes definitions as
    Description nodes                       defined by FWARC/2005/115
        
    Domain Services         Sun Private     Defined by FWARC/2006/055
    Specification
    (Includes description
     of Variables DS)

    mini-MD                 Sun Private     Defined by FWARC/2007/294

                                               
Exported Interfaces:


   Interface               Classification     Comments
   ====================================================================

    "_boot-script"          Sun Private     Property in Update MD as
                                            described above
                                            
    "_delete-all"           Sun Private     Property in Update MD as
                                            described above