[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v3 09/15] x86/IRQ: make fixup_irqs() skip unconnected internally used interrupts
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@xxxxxxxx> Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx> --- 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. */ _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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