DECLARE_IDTENTRY_IST(9)

💅 DECLARE_IDTENTRY_IST 💅

okay bestie, welcome to the Kernel API Manual page for DECLARE_IDTENTRY_IST — it's giving x86 entry-point glam, and we're gonna read every crumb 💅✨

🌸 NAME 🌸

DECLARE_IDTENTRY_IST — Declare functions for IST handling IDT entry points. periodt.

✨ SYNOPSIS ✨

DECLARE_IDTENTRY_IST (vector , func );

🎀 ARGUMENTS 🎀

• vector — vector number (ignored for C), no cap.
• func — function name of the entry point, main character behavior fr fr.

💖 DESCRIPTION 💖

So this one maps to DECLARE_IDTENTRY_RAW, but it also declares the NOIST C handler which is called from the ASM entry point on user mode entry. That's the whole plot, and it ate 💅

🦋 SEE ALSO 🦋

• Kernel file: ./arch/x86/include/asm/idtentry.h
• DECLARE_IDTENTRY(9)
• DEFINE_IDTENTRY(9)
• DECLARE_IDTENTRY_ERRORCODE(9)
• DEFINE_IDTENTRY_ERRORCODE(9)
• DECLARE_IDTENTRY_RAW(9)
• DEFINE_IDTENTRY_RAW(9)
• DEFINE_FREDENTRY_RAW(9)
• DECLARE_IDTENTRY_RAW_ERRORCODE(9)
• DEFINE_IDTENTRY_RAW_ERRORCODE(9)
• DECLARE_IDTENTRY_IRQ(9)
• DEFINE_IDTENTRY_IRQ(9)
• DECLARE_IDTENTRY_SYSVEC(9)
• DEFINE_IDTENTRY_SYSVEC(9)
• DEFINE_IDTENTRY_SYSVEC_SIMPLE(9)
• DECLARE_IDTENTRY_XENCB(9)
• DECLARE_IDTENTRY_VC(9)
• DEFINE_IDTENTRY_IST(9)
• DEFINE_IDTENTRY_NOIST(9)
• DECLARE_IDTENTRY_DF(9)
• DEFINE_IDTENTRY_DF(9)
• DECLARE_IDTENTRY_DF(9)
• DEFINE_IDTENTRY_DF(9)

okay that's the whole page, mwah 💋 — source/version + date: ./arch/x86/include/asm · October 2026 · page: DECLARE_IDTENTRY_IST(9) 🫶