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Re: [Qemu-devel] State of EHCI emulation for QEMU
From: |
Jan Kiszka |
Subject: |
Re: [Qemu-devel] State of EHCI emulation for QEMU |
Date: |
Sat, 04 Dec 2010 10:05:38 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
Am 04.12.2010 01:18, Gerd Hoffmann wrote:
> Hi,
>
>> as you may know, there is an experimental git repository at
>>
>> git://git.kiszka.org/qemu.git ehci
>
> Looking into this right now as I'm busy with various usb issues anyway.
> Current state:
> http://cgit.freedesktop.org/spice/qemu/log/?h=usb.1
>
>> - lacks integration with UHCI (currently, only EHCI is provided by
>> that tree, breaking USB 1.1 devices)
>
> Sort-of fixed (see docs/usb2.txt).
Very nice. Some remarks:
- command line must look like this:
...
-drive if=none,id=usbstick,file=/path/to/image \
-device usb-storage,bus=ehci.0,drive=usbstick
ie. register driver device referencing it, and there was a typo id->if
- long-term, "-usb" should become a shorthand for "-device
usb-uhci,id=uhci -device usb-ehci,id=ehci" (at least for x86)
Unfortunately, msd is not yet magically healed:
non queue head request in async schedule
processing error - resetting ehci HC
>
>> David furthermore provided the following to-dos:
>> - lacks periodic frames support
>> - lacks isochronous traffic support
>
> --verbose please. There seems to be some code for that?
>
>> - lacks split transactions support
>
> That would need a USB 2.0 HUB emulation to be useful.
> We lack that one too ;)
>
>> - NAK/reload support is kludgy at best
>
> --verbose please.
>
Those are questions for David.
Jan
PS: Your tree lacks conversion of usb-musb.c.
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- Re: [Qemu-devel] State of EHCI emulation for QEMU, Gerd Hoffmann, 2010/12/03
- Re: [Qemu-devel] State of EHCI emulation for QEMU,
Jan Kiszka <=
- Re: [Qemu-devel] State of EHCI emulation for QEMU, David S. Ahern, 2010/12/04
- Re: [Qemu-devel] State of EHCI emulation for QEMU, Gerd Hoffmann, 2010/12/08
- Re: [Qemu-devel] State of EHCI emulation for QEMU, Jan Kiszka, 2010/12/08
- Re: [Qemu-devel] State of EHCI emulation for QEMU, David S. Ahern, 2010/12/08
- Re: [Qemu-devel] State of EHCI emulation for QEMU, Gerd Hoffmann, 2010/12/08
- RE: [Qemu-devel] State of EHCI emulation for QEMU, David Ahern (daahern), 2010/12/08
- Re: [Qemu-devel] State of EHCI emulation for QEMU, Gerd Hoffmann, 2010/12/09
- Re: [Qemu-devel] State of EHCI emulation for QEMU, David S. Ahern, 2010/12/09
- Re: [Qemu-devel] State of EHCI emulation for QEMU, Blue Swirl, 2010/12/11
Re: [Qemu-devel] State of EHCI emulation for QEMU, Gerd Hoffmann, 2010/12/08