plpks_get_supportedpolicies(9)

💖 plpks_get_supportedpolicies(9) — Kernel API Manual 💖

okay bestie, welcome to the Kernel API Manual corner 💅 this entry is short, iconic, and lowkey all about asking the hypervisor which policies it supports. no cap. ✨

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🌸 NAME 🌸

plpks_get_supportedpolicies — Get a bitmask of the policies supported by the hypervisor. periodt. 💜

✨ SYNOPSIS ✨

u32 plpks_get_supportedpolicies (void );

🎀 ARGUMENTS 🎀

• void — no arguments. literally none. the function said “i need zero things” and meant it. 🫶

🦋 DESCRIPTION 🦋

okay so here’s the tea: when H_PKS_GET_CONFIG HCALL runs successfully during initialization, it reads a bitmask of the policies supported by the hypervisor into the file local static supportedpolicies variable. that’s the whole plot. main character energy for a static variable, honestly. 💜

bestie note: the bitmask is the bitmask — no extra decoding on this page, iykyk. 🙈

🔥 RETURN 🔥

On success, the bitmask of the policies supported by the hypervisor are returned, 0 if not. that’s it. no cap. ⭐

👑 SEE ALSO 👑

Kernel file: ./arch/powerpc/platforms/pseries/plpks.c — go read it, bestie, it’s the source of truth. 📚

the whole plpks friend group, fr fr:

• plpks_get_version(9)
• plpks_get_objoverhead(9)
• plpks_get_maxpwsize(9)
• plpks_get_maxobjectsize(9)
• plpks_get_maxobjectlabelsize(9)
• plpks_get_totalsize(9)
• plpks_get_usedspace(9)
• plpks_get_maxlargeobjectsize(9)
• plpks_get_signedupdatealgorithms(9)
• plpks_get_wrappingfeatures(9)
• plpks_get_passwordlen(9)
• plpks_is_available(9)
• plpks_signed_update_var(9)
• plpks_write_var(9)
• plpks_remove_var(9)
• plpks_wrapping_is_supported(9)
• plpks_gen_wrapping_key(9)
• plpks_wrap_object(9)
• plpks_unwrap_object(9)
• plpks_read_os_var(9)
• plpks_read_fw_var(9)
• plpks_read_bootloader_var(9)
• plpks_populate_fdt(9)
• plpks_early_init_devtree(9)

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xoxo, source/version ./arch/powerpc/platforms/pseries, dated October 2026 💅 slay. 🎀