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Commit 53b9ec3f authored by Joerg Roedel's avatar Joerg Roedel
Browse files

iommu/amd: Enforce alignment for MSI IRQs 



Make use of the new alignment capability of
alloc_irq_index() to enforce IRQ index alignment
for MSI.

Reported-by: default avatarThomas Gleixner <tglx@linutronix.de>
Fixes: 2b324506 ('iommu/amd: Add routines to manage irq remapping tables')
Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 37946d95

drivers/iommu/amd_iommu.c

+3 −1
Original line number Original line Diff line number Diff line
@@ -4102,7 +4102,9 @@ static int irq_remapping_alloc(struct irq_domain *domain, unsigned int virq, 
		else

		else

			ret = -ENOMEM;

			ret = -ENOMEM;

	} else {

	} else {

		index = alloc_irq_index(devid, nr_irqs, false);

		bool align = (info->type == X86_IRQ_ALLOC_TYPE_MSI);



		index = alloc_irq_index(devid, nr_irqs, align);

	}

	}

	if (index < 0) {

	if (index < 0) {

		pr_warn("Failed to allocate IRTE\n");

		pr_warn("Failed to allocate IRTE\n");