* [Qemu-devel] device-to-device
@ 2009-09-19 4:26 Edgar E. Iglesias
2009-09-19 10:21 ` Blue Swirl
0 siblings, 1 reply; 2+ messages in thread
From: Edgar E. Iglesias @ 2009-09-19 4:26 UTC (permalink / raw)
To: qemu-devel
Hi,
Has anybody done some work on a qdev device-2-device infrastruture?
For example to model DMA back channels or other device to device
communication?
Cheers
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [Qemu-devel] device-to-device
2009-09-19 4:26 [Qemu-devel] device-to-device Edgar E. Iglesias
@ 2009-09-19 10:21 ` Blue Swirl
0 siblings, 0 replies; 2+ messages in thread
From: Blue Swirl @ 2009-09-19 10:21 UTC (permalink / raw)
To: Edgar E. Iglesias; +Cc: qemu-devel
On Sat, Sep 19, 2009 at 7:26 AM, Edgar E. Iglesias
<edgar.iglesias@gmail.com> wrote:
> Hi,
>
> Has anybody done some work on a qdev device-2-device infrastruture?
> For example to model DMA back channels or other device to device
> communication?
We should have a DMA object, with map/unmap methods to translate the
addresses to host pointers. Physical memory should implement the
object as well as any IOMMUs or other address translators like buses
(in some cases).
The interface to qdev could be much like chardev.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2009-09-19 10:21 ` Blue Swirl
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