CONFIG_PHYS_64BIT is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc
Large physical address support
configname: CONFIG_PHYS_64BIT
Linux/PowerPC Kernel Configuration
└─>Processor support
└─>Large physical address support
In linux kernel since version 2.6.15 (release Date: 2006-01-02)
This option enables kernel support for larger than 32-bit physical
addresses. This features is not be available on all e500 cores.
If in doubt, say N here.
addresses. This features is not be available on all e500 cores.
If in doubt, say N here.
depends
CONFIG_44x or CONFIG_E500 or NOT CONFIG_PPC_82xx |NOT | CONFIG_PPC_83xx or CONFIG_44x or CONFIG_PPC_86xx