THE VF RESTORE STATE MACHINE(9)
π The VF RESTORE state machine π
okay bestie, welcome to the Kernel API Manual page for The VF RESTORE state machine. no cap, this one is short and iconic β it's giving sequel-to-the-paused-era energy. π¦
okay so the actual lore: RESTORE extends the PAUSED state. periodt. π
The VF RESTORE state machine looks like:
....PAUSED....................................................
: :
: (O)<---------o :
: | :
: restore (RESTORED) (RESTORE_FAILED) :
: | ^ ^ :
: | | | :
: ....V...............o...........o......RESTORE_WIP...... :
: : | | | : :
: : | empty | : :
: : | | | : :
: : | | | : :
: : | DATA_DONE | : :
: : | ^ | : :
: : | | error : :
: : | trailer / : :
: : | / / : :
: : | / / : :
: : | / / : :
: : o---------->PROCESS_DATA<----produce : :
: : : :
: : : :
: : : :
: : ring_empty---->WAIT_DATA : :
: : : :
: :......................................................: :
:............................................................:
For the full state machine view, see The VF state machine_. πΈ
π SEE ALSO π
Kernel file: ./drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c
the whole friend group, in the exact order the page gives it:
The VF state machine(9)The VF PAUSE state machine(9)xe_gt_sriov_pf_control_pause_vf(9)The VF RESUME state machine(9)xe_gt_sriov_pf_control_resume_vf(9)The VF SAVE state machine(9)xe_gt_sriov_pf_control_check_save_data_done(9)xe_gt_sriov_pf_control_check_save_failed(9)xe_gt_sriov_pf_control_process_save_data(9)xe_gt_sriov_pf_control_trigger_save_vf(9)xe_gt_sriov_pf_control_finish_save_vf(9)xe_gt_sriov_pf_control_check_restore_failed(9)xe_gt_sriov_pf_control_restore_data_done(9)xe_gt_sriov_pf_control_process_restore_data(9)xe_gt_sriov_pf_control_trigger_restore_vf(9)xe_gt_sriov_pf_control_finish_restore_vf(9)The VF STOP state machine(9)xe_gt_sriov_pf_control_stop_vf(9)The VF FLR state machine(9)xe_gt_sriov_pf_control_prepare_flr(9)xe_gt_sriov_pf_control_trigger_flr(9)xe_gt_sriov_pf_control_sync_flr(9)xe_gt_sriov_pf_control_wait_flr(9)The VF FLR Flow with GuC(9)xe_gt_sriov_pf_control_process_guc2pf(9)xe_gt_sriov_pf_control_init(9)xe_gt_sriov_pf_control_restart(9)
okay that's the tea β This page is from the Kernel API Manual, source ./drivers/gpu/drm/xe, dated October 2026, and its footer title is The VF RESTO...tate machine(9). slay, bye bestie π
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms