From 7d04319a05ab17ca3da188d0799af93d3213cb06 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 10 Dec 2024 11:34:15 +0100 Subject: x86/apic: Convert to IRQCHIP_MOVE_DEFERRED Instead of marking individual interrupts as safe to be migrated in arbitrary contexts, mark the interrupt chips, which require the interrupt to be moved in actual interrupt context, with the new IRQCHIP_MOVE_DEFERRED flag. This makes more sense because this is a per interrupt chip property and not restricted to individual interrupts. That flips the logic from the historical opt-out to a opt-in model. This is simpler to handle for other architectures, which default to unrestricted affinity setting. It also allows to cleanup the redundant core logic significantly. All interrupt chips, which belong to a top-level domain sitting directly on top of the x86 vector domain are marked accordingly, unless the related setup code marks the interrupts with IRQ_MOVE_PCNTXT, i.e. XEN. No functional change intended. Signed-off-by: Thomas Gleixner Reviewed-by: Steve Wahl Acked-by: Wei Liu Link: https://lore.kernel.org/all/20241210103335.563277044@linutronix.de --- drivers/pci/controller/pci-hyperv.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/pci/controller/pci-hyperv.c') diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index cdd5be16021d..6084b38bdda1 100644 --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -2053,6 +2053,7 @@ static struct irq_chip hv_msi_irq_chip = { .irq_set_affinity = irq_chip_set_affinity_parent, #ifdef CONFIG_X86 .irq_ack = irq_chip_ack_parent, + .flags = IRQCHIP_MOVE_DEFERRED, #elif defined(CONFIG_ARM64) .irq_eoi = irq_chip_eoi_parent, #endif -- cgit v1.2.3