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-rw-r--r--kernel/main.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/kernel/main.c b/kernel/main.c
index 7016647..a034b44 100644
--- a/kernel/main.c
+++ b/kernel/main.c
@@ -2554,6 +2554,25 @@ module_param_cb(sema_probe, &nv_vgpu_sema_probe_ops, NULL, 0200);
MODULE_PARM_DESC(sema_probe, "Dump sema-service map + slot values for a GPU VA");
/*
+ * ISSUE-0002 aid: force a client-session flush past the live-channel skip.
+ * Write anything (echo 1 > .../parameters/sema_force_flush).
+ */
+static int nv_vgpu_sema_force_flush_set(const char *val,
+ const struct kernel_param *kp)
+{
+ gsp_sema_service_sess_flush_force();
+ return 0;
+}
+
+static const struct kernel_param_ops nv_vgpu_sema_force_flush_ops = {
+ .set = nv_vgpu_sema_force_flush_set,
+};
+
+module_param_cb(sema_force_flush, &nv_vgpu_sema_force_flush_ops, NULL, 0200);
+MODULE_PARM_DESC(sema_force_flush,
+ "Force a client-session flush even with live channels (ISSUE-0002 aid)");
+
+/*
* Register the guest PMA scrubber channel buffer words (finish payload PA,
* host-semaphore PA) the guest scanner resolved:
* echo 0x11a8ff004,0x11a8ff000 > .../parameters/sema_scrubbuf_add