__this_cpu_ist_top_va
return ((sp >= __this_cpu_ist_bottom_va(VC)) && (sp < __this_cpu_ist_top_va(VC)));
if (WARN_ON(ist == __this_cpu_ist_top_va(VC)))
return (sp >= __this_cpu_ist_bottom_va(VC2) && sp < __this_cpu_ist_top_va(VC2));
tss->x86_tss.ist[IST_INDEX_DF] = __this_cpu_ist_top_va(DF);
tss->x86_tss.ist[IST_INDEX_NMI] = __this_cpu_ist_top_va(NMI);
tss->x86_tss.ist[IST_INDEX_DB] = __this_cpu_ist_top_va(DB);
tss->x86_tss.ist[IST_INDEX_MCE] = __this_cpu_ist_top_va(MCE);
tss->x86_tss.ist[IST_INDEX_VC] = __this_cpu_ist_top_va(VC);
wrmsrq(MSR_IA32_FRED_RSP1, __this_cpu_ist_top_va(DB));
wrmsrq(MSR_IA32_FRED_RSP2, __this_cpu_ist_top_va(NMI));
wrmsrq(MSR_IA32_FRED_RSP3, __this_cpu_ist_top_va(DF));
sp = __this_cpu_ist_top_va(VC2);
call_on_stack(__this_cpu_ist_top_va(DF) - sizeof(void*),