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From: "Daniele Crudo" <crudo.daniele@gmail.com>
Date: Sun, 17 Oct 2021 14:35:08 +0200
Message-ID: <CAOTX=C9Ah-JKzk3FRGmRNj0bzs2PoWsFWkTJc+e26yeRqvp5Hg@mail.gmail.com>
Subject: FL1100 usb chipset/Mac OS OVMF/XhciDxe issues with bootable usb 3.0 devices
To: edk2-devel-groups-io <devel@edk2.groups.io>
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Hi,
I'm using OVMF/qemu/kvm/libvirt to boot a mac os system.
In my setup I'm passing through a fresco logic usb controller with
FL1100 chipset.
I noticed that:

1. If I plug a usb 3.0 device in a usb 3.0 port of the FL1100
controller with a mac os installer, the bootloader is unable to see
the installer; moreover it prevents other devices to work correctly
(for example I have a mouse/kb dongle attached to a usb 2 hub,
attached to another usb 3.0 port of the FL1100)

2. If I plug the same usb 3.0 device into a hub usb 2.0, connected to
the usb 3.0 port of the FL1100 controller with a mac os installer, the
bootloader is able to see the installer and all the other devices work
correctly (in this case mouse/kb dongle also attached to the usb 2
hub)

It seems to me an issue with XhciDxe driver and this specific FL1100 chipset.

Any way I can provide more debug info on this?

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<div dir=3D"ltr"><div id=3D"gmail-c0" class=3D"gmail-bz_comment gmail-bz_fi=
rst_comment" style=3D"margin-bottom:2em;color:rgb(0,0,0);font-family:Verdan=
a,sans-serif"><pre class=3D"gmail-bz_comment_text" id=3D"gmail-comment_text=
_0" style=3D"font-size:medium;white-space:pre-wrap;width:50em">Hi,
I&#39;m using OVMF/qemu/kvm/libvirt to boot a mac os system.
In my setup I&#39;m passing through a fresco logic usb controller with FL11=
00 chipset.
I noticed that:

1. If I plug a usb 3.0 device in a usb 3.0 port of the FL1100 controller wi=
th a mac os installer, the bootloader is unable to see the installer; moreo=
ver it prevents other devices to work correctly (for example I have a mouse=
/kb dongle attached to a usb 2 hub, attached to another usb 3.0 port of the=
 FL1100)

2. If I plug the same usb 3.0 device into a hub usb 2.0, connected to the u=
sb 3.0 port of the FL1100 controller with a mac os installer, the bootloade=
r is able to see the installer and all the other devices work correctly (in=
 this case mouse/kb dongle also attached to the usb 2 hub)

It seems to me an issue with XhciDxe driver and this specific FL1100 chipse=
t.

Any way I can provide more debug info on this?</pre></div><br class=3D"gmai=
l-Apple-interchange-newline"></div>

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