There is no way to know which device in a VMD tiggered an interrupt without invoking every registered driver's actions. This uses the untracked irq handler so that a less used device does not trigger spurious interrupt.
We have been previously recommending users enable "noirqdebug", but do not want to force a system setting just to keep this domain functional. Signed-off-by: Keith Busch <keith.bu...@intel.com> --- arch/x86/pci/vmd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/pci/vmd.c b/arch/x86/pci/vmd.c index 7792aba..613cac7 100644 --- a/arch/x86/pci/vmd.c +++ b/arch/x86/pci/vmd.c @@ -195,7 +195,7 @@ static int vmd_msi_init(struct irq_domain *domain, struct msi_domain_info *info, vmdirq->virq = virq; irq_domain_set_info(domain, virq, vmdirq->irq->vmd_vector, info->chip, - vmdirq, handle_simple_irq, vmd, NULL); + vmdirq, handle_untracked_irq, vmd, NULL); return 0; } -- 2.7.2