STRUCT SEV_DATA_RANGE(9)

🎀 struct sev_data_range(9) 🎀

okay so bestie, welcome to the Kernel API Manual, and buckle up because we're talking about struct sev_data_range — the RANGE structure itself. yes, THE range structure. she's small, she's tidy, she's giving "i have three fields and i know how to use them" energy, and honestly? obsessed. 💅

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✨ NAME ✨

struct sev_data_range — literally the RANGE structure. that's it, that's the name, no cap. 🦋

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🌸 SYNOPSIS 🌸

here's the whole shape of her, bestie — look at that little struct, so clean:

struct sev_data_range {
    u64 base;
    u32 page_count;
    u32 rsvd;
 };

three members. that's the entire vibe. iykyk. ✨

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💖 Members 💖

okay so member by member, no skipping, we do not leave anybody out:

• base — the system physical address of the first byte of the range. like, where the range actually starts in system physical memory. first byte. main character byte. 👑
• page_count — the number of 4KB pages in this range. note the flex: pages are counted in 4KB units, so this is the count you give it, fr fr. 📄
• rsvd — reserved. that's it. it's reserved. hands off, don't be weird about it. 🙈

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🦋 SEE ALSO 🦋

bestie there are SO many siblings, she's got a whole extended family in the kernel file ./include/linux/psp-sev.h. here's the full roll call, every single one, absolutely no one left behind:

• 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_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_genoa_milan(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)

like i said. big family. go say hi. 🫶

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and that's the whole page, bestie — sourced from ./include/linux, dated October 2026, and officially titled struct sev_data_range(9). slay, goodbye, drink some water 💜✨