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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-18 06:17:50 -0400 |
|---|---|---|
| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-18 06:19:43 -0400 |
| commit | e99040b9ca2acc10a9d4b57fe45626331e203a7c (patch) | |
| tree | ade669445a3df78f14f6fb8cbc72f3450742061c /kernel/main.c | |
| parent | 992972e448015b676b1e887af1ce78a707b7f01f (diff) | |
| download | open-iov-e99040b9ca2acc10a9d4b57fe45626331e203a7c.tar.gz open-iov-e99040b9ca2acc10a9d4b57fe45626331e203a7c.zip | |
vgsp: GR fill hold - absolute deadline + expiry-proceed + dropped-page detail
Diffstat (limited to 'kernel/main.c')
| -rw-r--r-- | kernel/main.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/main.c b/kernel/main.c index 60bab26..ae9f262 100644 --- a/kernel/main.c +++ b/kernel/main.c @@ -2771,6 +2771,16 @@ module_param_named(sema_gr_grace_ms, gsp_sema_gr_grace_ms, uint, 0644); MODULE_PARM_DESC(sema_gr_grace_ms, "GR pending-entry grace window in ms (default 8000)"); /* + * GRFIX FIX1b (r213): absolute per-launch bound in ms for the GR fill + * data-stalled hold (the FIX1 page-drop hold). The deadline is keyed by the + * launch push VA, fixed on the first hold and never re-armed; when it passes + * the launch proceeds (forwarded best-effort) so a never-resolving page can + * never block the guest. 0 keeps the 3000 ms default. + */ +module_param_named(gsp_phys_gr_hold_max_ms, gsp_phys_gr_hold_max_ms, uint, 0644); +MODULE_PARM_DESC(gsp_phys_gr_hold_max_ms, "Absolute GR fill hold bound in ms, keyed by launch push VA (default 3000; launch proceeds when it passes)"); + +/* * F1-b: while a forwarded GR launch is in flight, defer (do not apply) a * RAM-sweep release whose VA is that launch's QMD completion word, so the * backend poll can only break on an engine-authored ack. Deferred releases |