Re: [Xen-devel] [PATCH] pciback: restore PCI BARs on D3->D0 transition

[Chris <hap10@xxxxxxxxxxxxxx>]

Keir Fraser wrote:
> On 26/3/07 21:23, "Alex Williamson" <alex.williamson@xxxxxx> wrote:
> 
>> don't think we necessarily need to go to that extent for pciback, but it
>> does appear to be pciback's responsibility to restore some state on the
>> card when transitioning out of D3, since it is effectively the driver
>> for the device.
> 
> Well, really it's supposed to be a filter (and perhaps translator) for PCI
> config space accesses. It's not really a driver. But obviously something
> like this is needed.

Sorry for the delay, I've been out of the office for a while.

Indeed pciback was intended to be more of a filter than a driver.  For
the time being it seems reasonable to implement BAR-related PM functions
in pciback as you've done (many thanks for that).  As time permits I'll
double-check that your solution makes the fix in the most appropriate
location.

Cheers,
Chris

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