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Re: [Qemu-devel] vga-pci and MMIO BAR

From: Benjamin Herrenschmidt
Subject: Re: [Qemu-devel] vga-pci and MMIO BAR
Date: Wed, 25 Jul 2012 23:41:52 +1000

On Wed, 2012-07-25 at 15:48 +0300, Avi Kivity wrote:
> >> If not, we can add a second BAR, but it should disappear when running an
> >> older machine type.
> > 
> > Well, the IO ports in legacy space are still there. We can also make the
> > "register BAR" exist in both mode or we can add a second BAR and have
> > x86 "prefer" IO... whatever rocks your boat as long as it's a BAR, it's
> > the legacy hole that's annoying for me :-)
> A guest created with -M old must look exactly the same as it did in an
> older version of qemu, no extra BARs.

Why ? Who cares ? Especially with vga -std which nobody uses in practice
on x86...


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