CONFIG_PHYS_64BIT is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc
Large physical address support
configname: CONFIG_PHYS_64BIT
Linux 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 feature may not be available on all cores.
If you have more than 3.5GB of RAM or so, you also need to enable
SWIOTLB under Kernel Options for this to work. The actual number
is platform-dependent.
If in doubt, say N here.
addresses. This feature may not be available on all cores.
If you have more than 3.5GB of RAM or so, you also need to enable
SWIOTLB under Kernel Options for this to work. The actual number
is platform-dependent.
If in doubt, say N here.