On Tue, Nov 24 2020 at 21:03, Laurent Vivier wrote:
> With virtio multiqueue, normally each queue IRQ is mapped to a CPU.
>
> This problem cannot be shown on x86_64 for two reasons:
There is only _ONE_ reason why this is not a problem on x86. x86 uses
the generic PCI/MSI domain which supports
With virtio multiqueue, normally each queue IRQ is mapped to a CPU.
But since commit 0d9f0a52c8b9f ("virtio_scsi: use virtio IRQ affinity")
this is broken on pseries.
The affinity is correctly computed in msi_desc but this is not applied
to the system IRQs.
It appears the affinity is correctly