Date: Wed, 1 Dec 2010 00:52:52 -0800
From: Chris Wright <chrisw@sous-sol.org>
To: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        linux-kernel@vger.kernel.org,
        Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>,
        Chris Wright <chrisw@sous-sol.org>,
        Max Asbock <masbock@linux.vnet.ibm.com>, indou.takao@jp.fujitsu.com,
        Jesse Barnes <jbarnes@virtuousgeek.org>,
        Bjorn Helgaas <bjorn.helgaas@hp.com>,
        David Woodhouse <dwmw2@infradead.org>, stable@kernel.org
Subject: Re: [patch 4/4] vt-d: handle previous faults after enabling fault
 handling
Message-ID: <20101201085252.GO10050@sequoia.sous-sol.org>
References: <20101201062225.292364637@intel.com>
 <20101201062244.630417138@intel.com>
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* Suresh Siddha (suresh.b.siddha@intel.com) 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@intel.com>

Acked-by: Chris Wright <chrisw@sous-sol.org>
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