Re: [PATCH v2] iommu/hyper-v: Allow hyperv irq remapping without x2apic

From: Wei Liu
Date: Fri Nov 18 2022 - 09:37:53 EST


On Thu, Nov 17, 2022 at 12:11:39PM -0800, Nuno Das Neves wrote:
> If x2apic is not available, hyperv-iommu skips remapping
> irqs. This breaks root partition which always needs irqs
> remapped.
>
> Fix this by allowing irq remapping regardless of x2apic,
> and change hyperv_enable_irq_remapping() to return
> IRQ_REMAP_XAPIC_MODE in case x2apic is missing.
>
> Tested with root and non-root hyperv partitions.
>
> Signed-off-by: Nuno Das Neves <nunodasneves@xxxxxxxxxxxxxxxxxxx>

Applied to hyperv-next. Thanks.