xive: Enable backlog on queues
Without this, not only backlog counters in groups aren't
incremented but IPB bits aren't set on unscheduled VPs.
@@ -3442,7 +3442,7 @@ static int64_t opal_xive_set_queue_info(uint64_t vp, uint32_t prio,
* escalation interrupt
*/
if ((qflags & OPAL_XIVE_EQ_ENABLED) && !(eq.w0 & EQ_W0_VALID)) {
- eq.w0 |= EQ_W0_VALID;
+ eq.w0 |= EQ_W0_VALID | EQ_W0_BACKLOG;
eq.w1 = EQ_W1_GENERATION | EQ_W1_ESe_Q;
} else if (!(qflags & OPAL_XIVE_EQ_ENABLED)) {
eq.w0 &= ~EQ_W0_VALID;
