Re: [v3 06/26] iommu, x86: No need to migrating irq for VT-d Posted-Interrupts

[David Woodhouse]

On Fri, 2014-12-12 at 23:14 +0800, Feng Wu wrote:
> We don't need to migrate the irqs for VT-d Posted-Interrupts here.
> When 'pst' is set in IRTE, the associated irq will be posted to
> guests instead of interrupt remapping. The destination of the
> interrupt is set in Posted-Interrupts Descriptor, and the migration
> happens during vCPU scheduling.
> 
> However, we still update the cached irte here, which can be used
> when changing back to remapping mode.
> 
> Signed-off-by: Feng Wu <feng.wu@xxxxxxxxx>
> Reviewed-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>

Acked-by: David Woodhouse <David.Woodhouse@xxxxxxxxx>

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse@xxxxxxxxx                              Intel Corporation

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