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Date: Wed, 6 Mar 2013 10:43:17 +0800 From: "Li, Zhen-Hua" <zhen-hual@...com> To: <linux-kernel@...r.kernel.org>, Joerg Roedel <joro@...tes.org>, Ingo Molnar <mingo@...nel.org>, Donald Dutile <ddutile@...hat.com>, Suresh Siddha <suresh.b.siddha@...el.com>, Hannes Reinecke <hare@...e.de> Cc: "Li, Zhen-Hua" <zhen-hual@...com> Subject: [PATCH 1/1] iommu: add a dma remap fault reason. The number of dma fault reasons in intel's document are from 1 to 0xD, but in dmar.c I cannot find fault reason 0xD. 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). So I think 0xD should be added. Signed-off-by: Li, Zhen-Hua <zhen-hual@...com> --- drivers/iommu/dmar.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index dc7e478..e5cdaf8 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[] = -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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