Re: [Xen-devel] one question on the PCI ioport base address for hvm domain in hvmloader.c

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

Why not keep the level of indirection? After all, the guest OS should be
allowed to remap any BAR and we should support that.

 -- Keir

On 7/1/08 11:47, "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx> wrote:

> I'm considering to make guest IO port address same as physical one for
> passthrough hvm domain. However,  in hvmloader.c's pci_setup(), the
> io_base is hardcoded as 0xc000, are there any special reason for this
> value? (I checked and seems it comes from original qemu's code)
> 
> Can anyone give me some hints on it?
> 
> Thanks
> -- Yunhong Jiang
> 
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