Re: [Xen-devel] [PATCH] amd iommu: Dump flags of IO page faults

[Sander Eikelenboom <linux@xxxxxxxxxxxxxx>]

Wednesday, September 5, 2012, 4:42:42 PM, you wrote:

> Hi Jan,
> Attached patch dumps io page fault flags. The flags show the reason of 
> the fault and tell us if this is an unmapped interrupt fault or a DMA fault.

> Thanks,
> Wei

> signed-off-by: Wei Wang <wei.wang2@xxxxxxx>


I have applied the patch and the flags seem to differ between the faults:

AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x0a06, fault address = 
0xc2c2c2c0, flags = 0x000
(XEN) [2012-09-05 20:54:16] AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 
0x0a06, fault address = 0xc2c2c2c0, flags = 0x000
(XEN) [2012-09-05 20:54:16] AMD-Vi: IO_PAGE_FAULT: domain = 14, device id = 
0x0700, fault address = 0xa8d339e0, flags = 0x020
(XEN) [2012-09-05 20:54:16] AMD-Vi: IO_PAGE_FAULT: domain = 14, device id = 
0x0700, fault address = 0xa8d33a40, flags = 0x020

Complete xl dmesg and lspci -vvvknn attached.

Thx

--
Sander

Attachment: lspci.txt
Description: Text document

Attachment: xl-dmesg.txt
Description: Text document

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