Re: [patch 4/4] vt-d: handle previous faults after enabling faulthandling

From: Chris Wright
Date: Wed Dec 01 2010 - 03:53:53 EST


* Suresh Siddha (suresh.b.siddha@xxxxxxxxx) wrote:
> Fault handling is getting enabled after enabling the interrupt-remapping (as
> the success of interrupt-remapping can affect the apic mode and hence the
> fault handling mode).
>
> Hence there can potentially be some faults between the window of enabling
> interrupt-remapping in the vt-d and the fault-handling of the vt-d units.
>
> Handle any previous faults after enabling the vt-d fault handling.
>
> For v2.6.38 cleanup, need to check if we can remove the dmar_fault() in the
> enable_intr_remapping() and see if we can enable fault handling along with
> enabling intr-remapping.
>
> Signed-off-by: Suresh Siddha <suresh.b.siddha@xxxxxxxxx>

Acked-by: Chris Wright <chrisw@xxxxxxxxxxxx>
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