plpar_hcall_raw(9)

💖 plpar_hcall_raw(9) — Kernel API Manual 💖

okay so bestie, welcome to the plpar_hcall_raw(9) page from the Kernel API Manual ✨ this one is lowkey all about making a hypervisor call without calculating hcall stats, and it's giving very real-mode main character energy 💅

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🌸 NAME 🌸

plpar_hcall_raw — make a hypervisor call without calculating hcall stats 🫶

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✨ SYNOPSIS ✨

long plpar_hcall_raw (unsigned long opcode , unsigned long
       retbuf[PLPAR_HCALL_BUFSIZE] , ... );

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🎀 ARGUMENTS 🎀

• opcode — the hypervisor call to make. iconic little opcode, no cap.
• retbuf — buffer to store up to 4 return arguments in. yes bestie, up to 4 return args.
• ... — variable arguments. literally variable arguments, iykyk.

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🦋 DESCRIPTION 🦋

okay so here's the tea ☕: this call supports up to 6 arguments and 4 return arguments. use PLPAR_HCALL_BUFSIZE to size the return argument buffer, periodt 💅

it's used when the phyp interface needs to be called in real mode. it's similar to plpar_hcall, but plpar_hcall_raw works in real mode and does not calculate hypervisor call statistics. that's the vibe: raw hcall, no stats math, no cap 🔥

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🌈 SEE ALSO 🌈

• Kernel file ./arch/powerpc/include/asm/hvcall.h — go peek bestie 👀
• plpar_hcall_norets(9) — another one to check out 🫶

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mwah 💋 that's the page! source/version vibes: ./arch/powerpc/include/asm; date: October 2026; page: plpar_hcall_raw(9). stay slay, bestie 🧚💜