Re: [PATCH RFC dontapply] kvm_para: add mmio word store hypercall

From: H. Peter Anvin
Date: Sun Mar 25 2012 - 19:26:44 EST

On 03/25/2012 03:05 PM, Michael S. Tsirkin wrote:
> We face a dilemma: IO mapped addresses are legacy,
> so, for example, PCI express bridges waste 4K
> of this space for each link, in effect limiting us
> to 16 devices using this space.

That is *only* if they are physical devices on PCIe links. For virtual
devices you have no such limitation. What is the problem again?


H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.

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