Since the "Cannot set affinity ..." warning is a one time one, avoid
triggering it already at boot time when parking secondary threads and
the serial console uses a (still unconnected at that time) PCI IRQ.
Signed-off-by: Jan Beulich <jbeul...@suse.com>
Reviewed-by: Roger Pau Monné <roger....@citrix.com>
--- a/xen/arch/x86/irq.c
+++ b/xen/arch/x86/irq.c
@@ -2428,8 +2428,20 @@ void fixup_irqs(const cpumask_t *mask, b
vector = irq_to_vector(irq);
if ( vector >= FIRST_HIPRIORITY_VECTOR &&
vector <= LAST_HIPRIORITY_VECTOR )
+ {
cpumask_and(desc->arch.cpu_mask, desc->arch.cpu_mask, mask);
+ /*
+ * This can in particular happen when parking secondary threads
+ * during boot and when the serial console wants to use a PCI IRQ.
+ */
+ if ( desc->handler == &no_irq_type )
+ {
+ spin_unlock(&desc->lock);
+ continue;
+ }
+ }
+
if ( desc->arch.move_cleanup_count )
{
/* The cleanup IPI may have got sent while we were still online. */
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