Messages in this thread | ![/](/images/icornerl.gif) | | Date | Sat, 11 Jan 2003 00:42:39 +0300 | From | Ivan Kokshaysky <> | Subject | Re: [patch 2.5] 2-pass PCI probing, generic part |
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On Fri, Jan 10, 2003 at 11:00:30AM -0800, Grant Grundler wrote: > Or dynamically assigns windows to PCI Bus controllers as PCI devices > are brought on-line.
Eh? In general case, to make room for newly added device, you have to shutdown the whole PCI bus starting from level 0, reassign _all_ BARs and bridge windows and then restart... The "hotplug resource reservation" is the only viable approach, it has been discussed numerous times.
> For PCI Hotplug, the role of managing MMIO/IRQ > resources has moved to the OS since these services are needed > after the OS has taken control of the box.
100% agree. :-)
> One 256MB BAR isn't so bad. It's when the customer wants to have a central > server that has 2 or more such cards...64-bit BARs on 64-bit architecture > make life alot easier.
I believe 1GB is a theoretical maximum for a 32-bit BAR. Everything above that has to be 64-bit.
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