From bd5cdad0c8e0f0adcd6e9c582abe4c4233c19b03 Mon Sep 17 00:00:00 2001
From: "Li, Zhen-Hua" <zhen-hual@hp.com>
Date: Mon, 25 Mar 2013 16:20:52 +0800
Subject: [PATCH] iommu/vt-d: dmar_fault should only clear PPF/PFO field.

When there is a dmar irq, dmar_fault is called and all of the fields
in FSTS are cleared. But ICE/IQE/ITE should not be cleared here,
they need to be processed and cleared in function qi_check_fault.

[Minor cleanup by Joerg Roedel]

Signed-off-by: Li, Zhen-Hua <zhen-hual@hp.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
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