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Re: [Qemu-devel] uhci: cancel delay for unregistered queues
From: |
Hans de Goede |
Subject: |
Re: [Qemu-devel] uhci: cancel delay for unregistered queues |
Date: |
Thu, 25 Apr 2013 12:20:59 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130311 Thunderbird/17.0.4 |
Hi,
On 02/14/2013 01:23 PM, Gerd Hoffmann wrote:
Hi,
The only fix I can think of is allocating a receive buffer inside
the UHCI code for read transfers, and copy the result over to the
guest memory when we are re-scanning the schedule, encounter the
completed td and are going to signal its completion to the guest.
I could take a shot at writing a patch with the proposed fix, but I
was sort of waiting on a reaction on the proposal first.
Gerd what do you think of my proposed fix ?
That should fix it indeed. Yes, for uhci we can live with the overhead,
it's low bandwidth anyway. No, I don't have a better idea. Patch is
very welcome.
Ok, so a bit late I must admit, but I've finally gotten around to writing
the promised fix for this.
I'm going to send it right after this mail.
Jan, can you give it a spin and see if it fixes your issue ?
Regards,
Hans
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