vmbus_prep_negotiate_resp(9)

💅 vmbus_prep_negotiate_resp(9) 💅

okay bestie, welcome to the Kernel API Manual — yes this is a section 9 page, yes it's a kernel function, and yes we're gonna make it cute. this one's called vmbus_prep_negotiate_resp and it lives in the driver/hypervisor girlie corner of the kernel 🧚✨

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🌸 NAME 🌸

vmbus_prep_negotiate_resp — creates the default response for a Negotiate message 🫶

like, it literally builds the reply for you. main character behavior tbh 👑

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✨ SYNOPSIS ✨

bool vmbus_prep_negotiate_resp (struct icmsg_hdr *icmsghdrp , u8 *buf ,
u32 buflen , const int *fw_version , int fw_vercnt , const int
*srv_version , int srv_vercnt , int *nego_fw_version , int
*nego_srv_version );

it returns a bool, and it takes a lot of arguments. she's high maintenance but she delivers 💅

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🎀 ARGUMENTS 🎀

one bullet per bestie, no skipping, we do not leave anyone out:

• icmsghdrp — pointer to the msg header structure 💌
• buf — the raw buffer channel data 🌈
• buflen — length of the raw buffer channel data (yes, in the original it's a full sentence; we respect it) 📏
• fw_version — the framework versions we can support 👑
• fw_vercnt — the size of fw_version 🔢
• srv_version — the service versions we can support ⭐
• srv_vercnt — the size of srv_version 🔢
• nego_fw_version — the selected framework version ✅
• nego_srv_version — the selected service version ✅

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💖 NOTE 💖

⚠️ Versions are given in decreasing order. this is not a drill, bestie — decreasing, so biggest energy first, periodt 🔥

so what does she actually do? she sets up and fills in the default negotiate response message. that's the whole vibe. mainly used by Hyper-V drivers 🦋

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/hv/channel_mgmt.c — go read it, iykwim 📖

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okay that's the page!! 🎀 and for the cute sign-off: this iconic little doc comes from ./drivers/hv, dated October 2026, and it's the manpage for vmbus_prep_negotiate_resp(9) — no cap, screenshot it, it ate 💅✨🫶💜