DECLARE_IDTENTRY_XENCB(9)

💅 NAME 💅

Okay so welcome to the Kernel API Manual, bestie — this page is DECLARE_IDTENTRY_XENCB(9), and it's literally all about declaring functions for the XEN HV callback entry point. 🧚✨

🌸 SYNOPSIS 🌸

DECLARE_IDTENTRY_XENCB (vector , func );

🎀 ARGUMENTS 🎀

• vector — the vector number, but lowkey it's ignored for C. 🙈
• func — the function name of the entry point. Main character name energy. 👑

🦋 DESCRIPTION 🦋

Bestie, this macro declares three functions. Not two, not four — three. Slay. 💅

• The ASM entry point: asm_##func
• The XEN PV trap entry point: xen_##func (maybe unused 👀)
• The C handler called from the ASM entry point

It maps to DECLARE_IDTENTRY. It's a distinct entry point specifically to handle the 32/64-bit difference. Periodt. 🔥

🌈 SEE ALSO 🌈

Kernel file ./arch/x86/include/asm/idtentry.h, plus all of these iconic friends:

• 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_IST(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)

And that's the whole vibe check, bestie. This came from ./arch/x86/include/asm, dated October 2026, and it's the DECLARE_IDTENTRY_XENCB(9) page — no cap, go off. 💖🎀🌟