Re: PCI Pass-through in Xen ARM: Draft 4

[Julien Grall <julien.grall@citrix.com>]

On 02/09/15 16:19, Ian Campbell wrote:
> On Thu, 2015-08-13 at 11:37 +0100, Julien Grall wrote:
>>>  4.2.2    Xenstore Update: For each PCI-EP BAR (IPA-PA mapping info).
>>>  ----------------------------------------------------------------------
>>> ------
>>>
>>>  Toolstack also updates the xenstore information for the device
>>>  (virtualbar:physical bar).This information is read by xen-pciback and
>>>  returned to the domU-pcifront driver configuration space reads for 
>>> BAR.
>>>
>>>  Entries created are as follows:
>>>  /local/domain/0/backend/pci/1/0
>>>  vdev-N
>>>      BDF = ""
>>>      BAR-0-IPA = ""
>>>      BAR-0-PA = ""
>>>      BAR-0-SIZE = ""
>>>      ...
>>>      BAR-M-IPA = ""
>>>      BAR-M-PA = ""
>>>      BAR-M-SIZE = ""
>>>
>>>  Note: If BAR M SIZE is 0, it is not a valid entry.
>>
>> How would you describe the ROM in xenstore?
> 
> You mean the ROM BAR? BAR-ROM-* perhaps? 

Right I mean the ROM BAR. I think it's should be spell out in the design
document.

Although I don't much care about the name.

Regards,

-- 
Julien Grall