xe_sriov_pf_arm_guard(9)

💅 xe_sriov_pf_arm_guard(9) — from the Kernel API Manual, bestie

okay so picture this: it's a Kernel API Manual page, the vibe is immaculate, and the main character is literally xe_sriov_pf_arm_guard. let's get into it 🎀

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✨ NAME ✨

xe_sriov_pf_arm_guard — arm the guard for exclusive/lockdown mode. that's it, that's the whole job. she locks things down, she arms the guard, she slays 💅

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🦋 SYNOPSIS 🦋

int xe_sriov_pf_arm_guard (struct xe_device *xe , struct xe_guard *guard
, bool lockdown , void *who );

yes bestie, four arguments, one int back, no cap. copy it exactly like that, don't be cute with the spacing 👑

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🌸 ARGUMENTS 🌸

• xe — the PF xe_device. like, the whole device. the main character energy of the parameter list.
• guard — the xe_guard that's about to get armed. she's the one getting the glow-up ✨
• lockdown — a bool that picks the mode: true means arm for lockdown mode, false means arm for exclusive mode. two modes, one flag, iconic honestly.
• who — the address of the new owner 🫶 …or NULL if it's just the caller. your call, iykyk.

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💜 DESCRIPTION 💜

first things first, the rule: this function can only be called on PF. not VF, not anybody else. PF only. periodt. 🙈

other than that? she's a simple wrapper for xe_guard_arm, with some extra debug messages on top so you can actually see what's happening. lowkey the best kind of function — does the thing, then tells you about it 🔥

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⭐ RETURN ⭐

0 on success 🎉, or a negative error code on failure 😭. that's the whole story.

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/xe/xe_sriov_pf.c
• xe_sriov_pf_readiness(9)
• xe_sriov_pf_init_early(9)
• xe_sriov_pf_init_late(9)
• xe_sriov_pf_wait_ready(9)
• xe_sriov_pf_disarm_guard(9)
• xe_sriov_pf_lockdown(9)
• xe_sriov_pf_end_lockdown(9)
• xe_sriov_pf_print_vfs_summary(9)

go read them all, they're all baddies, this is the group chat 🫶

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ngl if you're arming a guard, you better be on PF. that's the whole vibe check. 💀

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and that's a wrap, babe 🧚 — this page lives in ./drivers/gpu/drm/xe, dated October 2026, and it's titled xe_sriov_pf_arm_guard(9). mwah 💖