STRUCT XE_GT_SRIOV_CONFIG(9)

💖 struct xe_gt_sriov_config(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ this one's all about struct xe_gt_sriov_config — the GT level per-VF configuration data. yes that's a lot of acronyms, we'll get through it together 🫶

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🌸 NAME 🌸

struct xe_gt_sriov_config — GT level per-VF configuration data. literally what it says on the tin 💅

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✨ SYNOPSIS ✨

struct xe_gt_sriov_config {
    struct xe_ggtt_node *ggtt_region;
    struct xe_bo *lmem_obj;
    u16 num_ctxs;
    u16 begin_ctx;
    u16 num_dbs;
    u16 begin_db;
    u32 exec_quantum[GUC_MAX_SCHED_GROUPS];
    u32 preempt_timeout[GUC_MAX_SCHED_GROUPS];
    u32 sched_priority;
    u32 thresholds[XE_GUC_KLV_NUM_THRESHOLDS];
 };

like, just look at it. iconic. no notes 🔥

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🎀 Members 🎀

vibe check on every single field, one by one, no skipping (i would never 😤):

• ggtt_region — the GGTT region that's been assigned to the VF. it's theirs. it's giving allocated 💖
• lmem_obj — the LMEM allocation for use by the VF. local memory, hand-delivered 🎁
• num_ctxs — how many GuC context IDs there are. the count, the number, the quantity ✨
• begin_ctx — the start index of the GuC context ID range. where the range begins, bestie 📍
• num_dbs — how many GuC doorbell IDs. doorbells!! ding dong 🛎️
• begin_db — the start index of the GuC doorbell ID range. the beginning of the doorbell zone 🔔
• exec_quantum — execution-quantum, measured in milliseconds ⏱️ (yes, milliseconds, don't @ me)
• preempt_timeout — preemption timeout, measured in microseconds ⏳ (different unit!! microseconds!! pay attention 💀)
• sched_priority — scheduling priority. who goes first, basically 👑
• thresholds — the GuC thresholds for adverse events notifications. when things go sideways, these are the lines that get crossed 🚨

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🦋 Description 🦋

so the PF driver uses this to maintain per-VF provisioning data. that's the whole plot. PF driver, per-VF provisioning data, maintained. periodt 💜

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/xe/xe_gt_sriov_pf_config_types.h
• struct xe_gt_sriov_spare_config(9) — the spare-config cousin, go say hi 🧚

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ngl bestie, if you're poking at VF provisioning and you skip reading this, that's on you 😭 the fields are right there. iykyk.

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and that's the page!! 🌸 source version and date, for the record: ./drivers/gpu/drm/xe, October 2026, struct xe_gt_sriov_config(9). mwah, go forth and provision responsibly 💅✨🍓