On Tue, 14 Jun 2022 10:52:52 +0200
Gerd Hoffmann wrote:
> On Mon, Jun 13, 2022 at 03:47:04PM +0200, Laszlo Ersek wrote:
> > On 06/12/22 19:32, Kevin Locke wrote:
> > > PCI Express devices which use legacy VGA compatibility should be placed
> > > on the Root Complex. This simplifies ioport acce
Hi,
> I think documenting the issue with VBE registers would be helpful.
> Doing so with a recommendation for how to avoid the issue seems even
> better. Would a recommendation to attach a device which supports VBE
> to the Root Complex if VBE will be used by the guest make sense?
Yes. This a
On Tue, 2022-06-14 at 10:52 +0200, Gerd Hoffmann wrote:
>> On 06/12/22 19:32, Kevin Locke wrote:
>>> PCI Express devices which use legacy VGA compatibility should be placed
>>> on the Root Complex. This simplifies ioport access to VGA registers,
>>> which requires use of a special exception bit to
On Mon, Jun 13, 2022 at 03:47:04PM +0200, Laszlo Ersek wrote:
> On 06/12/22 19:32, Kevin Locke wrote:
> > PCI Express devices which use legacy VGA compatibility should be placed
> > on the Root Complex. This simplifies ioport access to VGA registers,
> > which requires use of a special exception b
On 06/12/22 19:32, Kevin Locke wrote:
> PCI Express devices which use legacy VGA compatibility should be placed
> on the Root Complex. This simplifies ioport access to VGA registers,
> which requires use of a special exception bit to work across PCI(e)
> bridges. It is also necessary for ioport a
PCI Express devices which use legacy VGA compatibility should be placed
on the Root Complex. This simplifies ioport access to VGA registers,
which requires use of a special exception bit to work across PCI(e)
bridges. It is also necessary for ioport access to VESA BIOS Extension
(VBE) registers,
