Message ID | 5CDE91D602000078002300AE@prv1-mh.provo.novell.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | x86: IRQ management adjustments | expand |
On 17/05/2019 11:49, Jan Beulich wrote: > 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 <jbeulich@suse.com> > Reviewed-by: Roger Pau Monné <roger.pau@citrix.com> Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
--- a/xen/arch/x86/irq.c +++ b/xen/arch/x86/irq.c @@ -2452,8 +2452,20 @@ 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. */