CONFIG_IA64_HP_ZX1 is not available for thedefaultarchitecture x86.
Result is shown for architecture ia64
HP-zx1/sx1000
configname: CONFIG_IA64_HP_ZX1
System type
└─>HP-zx1/sx1000
In linux kernel since version 2.6.12
Build a kernel that runs on HP zx1 and sx1000 systems. This adds
support for the HP I/O MMU.
support for the HP I/O MMU.