Re: Is there way to reserve more MMIO resource for PCIE-hotplug-capableslot?

From: H. Peter Anvin
Date: Tue Dec 05 2006 - 18:50:41 EST


Zhao Forrest wrote:
Hi,

Sometimes we could hotplug a PCIE device, which require more MMIO
resource than that reserved by BIOS.

My question is: is there a way for kernel to reserved more MMIO
resource for a PCIE-hotplug-capable slot? I searched the
kernel-parameters.txt, but didn't find any related information.


If you need 32-bit MMIO, no, because it requires chipset-specific reprogramming. 64-bit MMIO should be readily available.

-hpa
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