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
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