gisa_get_ipm_or_restore_iam(9)

💅 gisa_get_ipm_or_restore_iam(9)

okay so bestie, welcome to the Kernel API Manual — this one is gisa_get_ipm_or_restore_iam(9), and it is lowkey doing two things at once. iconic behavior, honestly. 🎀

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🌸 NAME 🌸

gisa_get_ipm_or_restore_iam — return IPM or restore GISA IAM

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✨ SYNOPSIS ✨

u8 gisa_get_ipm_or_restore_iam (struct kvm_s390_gisa_interrupt *gi );

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🦋 ARGUMENTS 🦋

• gi — the gisa interrupt struct to work on. that's the one, bestie. 🫶

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💖 DESCRIPTION 💖

okay so here's the vibe: it atomically restores the interruption alert mask if none of the relevant ISCs are pending, and then it returns the IPM. no cap, that's the whole move. ✨

atomic means it happens as one unit — do not try to split it up, bestie. 💅

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👑 RETURN 👑

what you get back is the relevant pending ISCs. periodt. 💜

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🌈 SEE ALSO 🌈

• Kernel file ./arch/s390/kvm/s390/interrupt.c — plus the whole friend group: gisa_set_iam(9), gisa_clear_ipm(9), kvm_s390_gisc_register(9), and kvm_s390_gisc_unregister(9). 🧚

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mwah 💋 bye bestie — this page lives under source/version ./arch/s390/kvm/s390, dated October 2026. 🫶🎀