kvmppc_gsb_capacity(9)

💅 kvmppc_gsb_capacity — a whole manual page, bestie

okay so this is a page from the Kernel API Manual (yes, the kernel has lore too, we love that for it) and it's about exactly one function. one. singular. she's short, she's sweet, she tells you how much room a guest state buffer has. that's it. that's the whole vibe. 🎀

---

✨ NAME ✨

kvmppc_gsb_capacity — literally just tells you the capacity of a guest state buffer. no cap. that's the tea. 🫖

---

🌸 SYNOPSIS 🌸

size_t kvmppc_gsb_capacity (struct kvmppc_gs_buff *gsb );

like… she takes one thing and gives you back a size_t. main character energy tbh. 👑

---

🦋 ARGUMENTS 🦋

• gsb — the guest state buffer in question. the one. the only. hand her over and she'll spill the capacity. 💖

---

🧚 DESCRIPTION 🧚

Returns the capacity of a buffer. 💫

that's it. that's the whole description. she said "I'm not gonna overexplain myself" and honestly? iconic. periodt. 🔥

ngl this is one of those tiny helper functions that does exactly what the name says — no plot twists, no surprises, just capacity. 🍓

---

💜 SEE ALSO 💜

okay this is where it gets unhinged — the source file is the Kernel file ./arch/powerpc/include/asm/guest-state-buffer.h, and the friends list is LONG. buckle up, bestie, we're going through all of them. every single one. 💀

the structs (the whole squad):

• struct kvmppc_gs_part_table(9)
• struct kvmppc_gs_proc_table(9)
• struct kvmppc_gs_buff_info(9)
• struct kvmppc_gs_header(9)
• struct kvmppc_gs_elem(9)
• struct kvmppc_gs_buff(9)
• struct kvmppc_gs_bitmap(9)
• struct kvmppc_gs_parser(9)
• struct kvmppc_gs_msg_ops(9)
• struct kvmppc_gs_msg(9)

the gsb girlies:

• kvmppc_gsb_header(9)
• kvmppc_gsb_data(9)
• kvmppc_gsb_len(9)
• kvmppc_gsb_paddress(9)
• kvmppc_gsb_nelems(9)
• kvmppc_gsb_reset(9)
• kvmppc_gsb_data_len(9)
• kvmppc_gsb_data_cap(9)
• kvmppc_gsb_for_each_elem(9)

the gse crew (so many of them, I'm obsessed):

• kvmppc_gse_iden(9)
• kvmppc_gse_len(9)
• kvmppc_gse_total_len(9)
• kvmppc_gse_total_size(9)
• kvmppc_gse_data(9)
• kvmppc_gse_ok(9)
• kvmppc_gse_next(9)
• kvmppc_gse_for_each_elem(9)
• kvmppc_gse_put_be32(9)
• kvmppc_gse_put_u32(9)
• kvmppc_gse_put_be64(9)
• kvmppc_gse_put_u64(9)
• __kvmppc_gse_put_reg(9)
• kvmppc_gse_put_vector128(9)
• kvmppc_gse_put_part_table(9)
• kvmppc_gse_put_proc_table(9)
• kvmppc_gse_put_buff_info(9)
• kvmppc_gse_get_be32(9)
• kvmppc_gse_get_u32(9)
• kvmppc_gse_get_be64(9)
• kvmppc_gse_get_u64(9)
• kvmppc_gse_get_vector128(9)

the bitmap babes:

• kvmppc_gsbm_zero(9)
• kvmppc_gsbm_fill(9)
• kvmppc_gsbm_for_each(9)

the iterator / msg besties:

• kvmppc_gsp_for_each(9)
• kvmppc_gsm_for_each(9)
• kvmppc_gsm_include(9)
• kvmppc_gsm_includes(9)

and the send/receive duo, saving the best for last:

• kvmppc_gsb_receive_data(9)
• kvmppc_gsb_send_data(9)

like I said. fifty of them. I counted. iykyk. 🌈

---

💅 vibe check: this page lives in the kernel API manual, ships out of ./arch/powerpc/include/asm, and it's dated October 2026 — so yeah, she's from the future AND she's booked and busy. no notes. 🦋✨💖

and that's the whole page, bestie — read her, cite her, cite all fifty of her friends, and go get that capacity. 🎀👑🫶