Is the NMI watchdog unavailable if manually disablin g the related configurations for APIC(i.e. for x86-64 SMP ke rnels，the options are CONFIG_X86_LOCAL_APIC and CONFIG_X86 _IO_APIC) ?

Hi, list

As per the documentation(
https://www.mjmwired.net/kernel/Documentation/nmi_watchdog.txt),
which says:
"In order to use the NMI watchdog, you need to have APIC support in your
kernel. For SMP kernels, APIC support gets compiled in automatically. For
UP, enable either CONFIG_X86_UP_APIC (Processor type and features -> Local
APIC support on uniprocessors) or CONFIG_X86_UP_IOAPIC (Processor type and
features -> IO-APIC support on uniprocessors) in your kernel config.
For x86-64, the needed APIC is always compiled in."

Can I draw the conclusion that the NMI watchdog is unavailable if
manually disabling the related
configurations for APIC(i.e. for x86-64 SMP kernels, the options are
CONFIG_X86_LOCAL_APIC and CONFIG_X86_IO_APIC) ?
Is it impossible to manually disable APIC for the kernel of the x86-64 platform?

Thank you for your attention to this matter.
Best regards.