>
> First, I finally figured out this is not really important for me.
> "Supported Processor types" is ONLY for 32 bits.
>

When i remove Processor type and features  --->  [*] Supported processor
vendors  ---> [ ]   Support AMD processors (CONFIG_CPU_SUP_AMD) it removes
features relevant to 64 bit CPUs;

# diff .config .config-gold | grep ^\>
> CONFIG_X86_CPU_RESCTRL=y
> CONFIG_CPU_SUP_AMD=y
> # CONFIG_GART_IOMMU is not set
> CONFIG_X86_MCE_AMD=y
> CONFIG_X86_MCE_THRESHOLD=y
> CONFIG_PERF_EVENTS_AMD_POWER=y
> CONFIG_MICROCODE=y
> # CONFIG_MICROCODE_INTEL is not set
> CONFIG_MICROCODE_AMD=y
> CONFIG_MICROCODE_OLD_INTERFACE=y
> # CONFIG_AMD_MEM_ENCRYPT is not set
> CONFIG_X86_ACPI_CPUFREQ_CPB=y
> CONFIG_X86_AMD_FREQ_SENSITIVITY=y
> CONFIG_AMD_NB=y
> CONFIG_SENSORS_K10TEMP=m
> CONFIG_SENSORS_FAM15H_POWER=m
> CONFIG_AGP_AMD64=y
> CONFIG_EDAC_DECODE_MCE=y
> CONFIG_EDAC_AMD64=m
> # CONFIG_EDAC_AMD64_ERROR_INJECTION is not set