lkml.org 
[lkml]   [2010]   [Jun]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [Patch 1/1] x86 pci: Add option to not assign BAR's if not already assigned
On 06/02/2010 05:45 PM, Bjorn Helgaas wrote:
> On Wednesday, June 02, 2010 01:31:18 am H. Peter Anvin wrote:
>> On 06/01/2010 03:49 PM, Bjorn Helgaas wrote:
>>>>
>>>> BIOS still assigns the MMIO BAR's so the devices are alive.
>>>
>>> I'm sorry; I don't follow this. BIOS assigns MMIO BARs regardless
>>> of whether we have your patch.
>>
>> I'm assuming that that Mike is implying is that the allocation code runs
>> out of I/O space and as a result shuts down the entire device.
>
> Yeah, that's why I asked about a deeper problem. There's not really a
> "shut down this device" flag, so the only way I can think of that we
> might make a device completely unusable is if we release all the device
> resources and then fail to reassign them.
>
> A concrete example, e.g., a dmesg log, would go a long ways toward
> clarifying this.
>

That's what I thought, which I guess means my original question to Mike
still stands...

-hpa



\
 
 \ /
  Last update: 2010-06-02 17:51    [W:0.174 / U:0.052 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site