From: Gerd Hoffmann <kraxel@redhat.com>
To: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: berrange@redhat.com, "Philippe Mathieu-Daudé" <philmd@redhat.com>,
victortoso@redhat.com, qemu-devel@nongnu.org
Subject: Re: Half a usb-redir idea
Date: Wed, 17 Mar 2021 07:30:20 +0100 [thread overview]
Message-ID: <20210317063020.ldkuvwgdxxdvxlzt@sirius.home.kraxel.org> (raw)
In-Reply-To: <YFD8mXa4P/fVIZd6@work-vm>
Hi,
> > What about DMA accesses?
>
> I was assuming it was wired to the other half of usbredir than
> the current qemu client side code, so it would handle it.
Yep, that is for the most part handled by the host adapter emulation.
The usb device emulation will see an USBPacket struct with an iovec,
typically pointing to guest ram, but you can easily have the usbredir
server bits point to network packet content instead and the device
emulation code wouldn't notice the difference.
take care,
Gerd
next prev parent reply other threads:[~2021-03-17 6:51 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-16 17:21 Half a usb-redir idea Dr. David Alan Gilbert
2021-03-16 18:40 ` Philippe Mathieu-Daudé
2021-03-16 18:44 ` Dr. David Alan Gilbert
2021-03-16 21:06 ` Marc-André Lureau
2021-03-17 6:30 ` Gerd Hoffmann [this message]
2021-03-17 6:24 ` Gerd Hoffmann
2021-03-17 9:10 ` Dr. David Alan Gilbert
2021-03-17 10:16 ` Gerd Hoffmann
2021-03-17 10:41 ` Thanos Makatos
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