STRUCT SEV_SNP_TCB_VERSION_GENOA_MILAN(9)

✨ struct sev_snp_tcb_version_genoa_milan(9) ✨

okay so bestie, we're in the Kernel API Manual today and the star of the show is struct sev_snp_tcb_version_genoa_milan 💖 like yes, that's a whole mouthful, but she's iconic and she's here to tell you the TCB (trusted computing base, iykyk) version numbers for the Genoa and Milan fam 🎀

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🌸 NAME 🌸

struct sev_snp_tcb_version_genoa_milan — no cap, that's the name and the original page literally gives you no extra blurb after the dash, so we're keeping it exactly that way 🫶 (the fields below do all the talking, fr fr)

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🦋 SYNOPSIS 🦋

bestie, here's the whole vibe, verbatim:

struct sev_snp_tcb_version_genoa_milan {
    u8 boot_loader;
    u8 tee;
    u8 reserved[4];
    u8 snp;
    u8 microcode;
 };

note the u8 glow-up on everything — small types, big main character energy 💅 and yeah, reserved[4] is just chillin' in the middle, we don't ask her questions.

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👑 MEMBERS 👑

every single field, no skipping, periodt:

• boot_loader — the SVN of the PSP bootloader 🔥 (SVN = security version number, she's the "how fresh is this firmware" counter)
• tee — the SVN of the PSP operating system 🧚 lowkey the TEE gets its own little version tracker and honestly? deserved
• reserved — reserved 🙈 that's it, that's the whole description, she's a mystery and we respect it
• snp — the SVN of SNP firmware ⭐ (SNP = Secure Nested Paging, if you were wondering — and yes, this struct is out here keeping receipts on it)
• microcode — lowest current patch level of all cores 💀 lowest, bestie, meaning it snitches on whichever core is lagging behind. savage but necessary.

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🌈 SEE ALSO 🌈

the whole group chat, fr fr — Kernel file ./include/linux/psp-sev.h plus every single one of these:

• struct sev_data_init(9)
• struct sev_data_init_ex(9)
• struct sev_data_pek_csr(9)
• struct sev_data_download_firmware(9)
• struct sev_data_get_id(9)
• struct sev_data_pdh_cert_export(9)
• struct sev_data_decommission(9)
• struct sev_data_activate(9)
• struct sev_data_deactivate(9)
• struct sev_data_guest_status(9)
• struct sev_data_launch_start(9)
• struct sev_data_launch_update_data(9)
• struct sev_data_launch_update_vmsa(9)
• struct sev_data_launch_measure(9)
• struct sev_data_launch_secret(9)
• struct sev_data_launch_finish(9)
• struct sev_data_send_start(9)
• struct sev_data_send_finish(9)
• struct sev_data_send_cancel(9)
• struct sev_data_receive_start(9)
• struct sev_data_receive_update_data(9)
• struct sev_data_receive_update_vmsa(9)
• struct sev_data_receive_finish(9)
• struct sev_data_dbg(9)
• struct sev_data_attestation_report(9)
• struct sev_data_snp_download_firmware(9)
• struct sev_data_snp_activate(9)
• struct sev_data_snp_addr(9)
• struct sev_data_snp_launch_start(9)
• struct sev_data_snp_launch_update(9)
• struct sev_data_snp_launch_finish(9)
• struct sev_data_snp_guest_status(9)
• struct sev_data_snp_page_reclaim(9)
• struct sev_data_snp_page_unsmash(9)
• struct sev_data_snp_dbg(9)
• struct sev_data_snp_guest_request(9)
• struct sev_data_snp_init_ex(9)
• struct sev_data_range(9)
• struct sev_data_range_list(9)
• struct sev_data_snp_shutdown_ex(9)
• struct sev_platform_init_args(9)
• struct sev_data_snp_commit(9)
• struct sev_data_snp_feature_info(9)
• struct sev_data_snp_verify_mitigation(9)
• struct sev_data_snp_verify_mitigation_dst(9)
• struct sev_snp_tcb_version_turin(9)
• sev_module_init(9)
• sev_platform_init(9)
• sev_platform_status(9)
• sev_issue_cmd_external_user(9)
• sev_guest_deactivate(9)
• sev_guest_activate(9)
• sev_guest_df_flush(9)
• sev_guest_decommission(9)
• sev_do_cmd(9)

side note bestie: that list is long enough to need its own hydration reminder 💀 but every single one of them is in there, we do not gatekeep on this blog.

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and that's the whole page, slay ✨ before you go — this beauty ships from source ./include/linux and it's dated October 2026 🎀 so like, mark your calendars, she's from the future 💜 bye bestie, go read your structs 🦋💅