From 4ecccd9edd5eb4dd185486e6e593c671484691bc Mon Sep 17 00:00:00 2001
From: "Li, Zhen-Hua" <zhen-hual@hp.com>
Date: Wed, 6 Mar 2013 10:43:17 +0800
Subject: [PATCH] iommu, x86: Add DMA remap fault reason
The number of DMA fault reasons in intel's document are from 1
to 0xD, but in dmar.c fault reason 0xD is not printed out.
In this document:
"Intel Virtualization Technology for Directed I/O Architecture Specification"
http://download.intel.com/technology/computing/vptech/Intel(r)_VT_for_Direct_IO.pdf
Chapter 4. Support For Device-IOTLBs
Table 6. Unsuccessful Translated Requests
There is fault reason for 0xD not listed in kernel:
Present context-entry used to process translation request
specifies blocking of Translation Requests (Translation Type (T)
field value not equal to 01b).
This patch adds reason 0xD as well.
Signed-off-by: Li, Zhen-Hua <zhen-hual@hp.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Donald Dutile <ddutile@redhat.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Hannes Reinecke <hare@suse.de>
Link: http://lkml.kernel.org/r/1362537797-6034-1-git-send-email-zhen-hual@hp.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
drivers/iommu/dmar.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index dc7e478b7e5f..e5cdaf87822c 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -1083,6 +1083,7 @@ static const char *dma_remap_fault_reasons[] =
"non-zero reserved fields in RTP",
"non-zero reserved fields in CTP",
"non-zero reserved fields in PTE",
+ "PCE for translation request specifies blocking",
};
static const char *irq_remap_fault_reasons[] =
--
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