Re: PCI passthrough on Sony Vaio F11 laptop...

[Erik Brakkee <erik@brakkee.org>]

Jan Kiszka wrote:
> Am 15.11.2010 22:55, Erik Brakkee wrote:
>    
>> Jan Kiszka wrote:
>>      
>>> Am 14.11.2010 14:21, Erik Brakkee wrote:
>>>
>>>        
>>>> Jan Kiszka wrote:
>>>>
>>>>          
>>>>> Strange, should work. I would suggest to post your full kernel log,
>>>>> maybe there is some enlightening message hidden.
>>>>>
>>>>> I don't think it is a problem of your kernel version, but I'm able to
>>>>> pass through devices on OpenSUSE 11.3 with
>>>>> kernel-desktop-2.6.36-90.1.x86_64 from their kernel repository.
>>>>>
>>>>> Jan
>>>>>
>>>>>
>>>>>
>>>>>            
>>>> Exactly what server logs do you need. Is this only /var/log/messages or
>>>> more? And do I need to set specific options there?
>>>> Any other log files that you need?
>>>>
>>>>          
>>> dmesg>   log-file
>>>
>>>
>>>        
>>>> Before, generating these logs I will upgrade to a later kernel. As far
>>>> as I can tell, that will still be a 2.6.34 kernel. Perhaps I should try
>>>> the 2.6.36 kernel as well. Do you have the URL for the kernel repository
>>>> I should use? (cannot find an obvious kernel repository in YAST2).
>>>>
>>>>          
>>> http://download.opensuse.org/repositories/Kernel:/HEAD/openSUSE_11.3
>>>
>>> Jan
>>>
>>>
>>>        
>> I have attached the logs of /var/log/messages, dmesg, and qemu log
>> (other.log), as well as the kernel config parameters (/proc/config.gz).
>> I did the test with two kernels (see the tar.gz file): one kernel a
>> 2.6.34 and the other a 2.6.36 kernel.
>>      
>
> Comparing the dmesg with my kernel log, I'm missing messages like
>
> [    0.023960] DMAR: Host address width 36
> [    0.023962] DMAR: DRHD base: 0x000000fed90000 flags: 0x0
> [    0.023968] IOMMU 0: reg_base_addr fed90000 ver 1:0 cap c9008020e30272 ecap 1000
> [    0.023970] DMAR: DRHD base: 0x000000fed93000 flags: 0x1
> [    0.023974] IOMMU 1: reg_base_addr fed93000 ver 1:0 cap c9008020630272 ecap 1000
> [    0.023976] DMAR: RMRR base: 0x000000bf6e9000 end: 0x000000bf6fffff
> [    0.023978] DMAR: No ATSR found
>
> about the Intel DMAR (IOMMU) setup.
>
> Are you sure that you have an Intel chipset with the required features?
> And have you checked that "VT-d" is enabled in the BIOS (or however it
> may be called there)?
>
> Jan
I have now done a PCI passthrough test on some real hardware. Supermicro 
X8DTi-F motherboard (intel 5520 chipset), Intel Xeon L5630 processor. I 
enabled Intel VT-d in the BIOS and them simply selected one of the 
network interfaces for passthrough the the VM. And then... it just 
worksd. Also, I am seeing output similar to what you posted above.