From e99040b9ca2acc10a9d4b57fe45626331e203a7c Mon Sep 17 00:00:00 2001 From: Arthur Hanson Rasmusson Date: Sun, 18 Oct 2026 06:17:50 -0400 Subject: vgsp: GR fill hold - absolute deadline + expiry-proceed + dropped-page detail --- kernel/main.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'kernel/main.c') diff --git a/kernel/main.c b/kernel/main.c index 60bab26..ae9f262 100644 --- a/kernel/main.c +++ b/kernel/main.c @@ -2770,6 +2770,16 @@ MODULE_PARM_DESC(sema_push_hold_ms, "CE unreadable-entry work-before-release hol 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 -- cgit v1.2.3