* and around vm86 mode and sp0 on x86_64 is special because of the
* entry trampoline.
*/
+ if (IS_ENABLED(CONFIG_USE_X86_SEG_SUPPORT))
+ return this_cpu_read_const(const_pcpu_hot.top_of_stack);
+
return this_cpu_read_stable(pcpu_hot.top_of_stack);
}