Hi,
I am trying to share devices between vm's. For example I want to use a
cdrom-drive who is exposed to a vm from another vm over the network.
In addition to this I want to use virtio for this idea.
What I am trying to do step by step:
1. If virtqueue_pop is called on the KVM 2 I take the iovec structure
information
2. I send it over to the KVM 1
3. KVM 1 put it into the own virtqueue_pop
4. KVM 1 wait for virtqueue_push
5. KVM 1 take the information from virtqueue_push
6. KVM 1 send it over to KVM 2
7. KVM 2 put it into the virtqueue push
|----------------------|
|--------------------|
| | |
|
| KVM 1 | | KVM 2
|
| | |
|
| | |
|
|----------------------|
|--------------------|
| | | | |
|
| | | | |
|
| | | | |
|
| /--------\<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<</-----\
|
First virtqueue | | | TCP/IP Connection | |
Second Virtqueue
| | |>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>| |
|
| \-------/ \_____/
|
| | |
|
| | |
_______________________
----------------------- |
|
| | |
|
| | |
|
| Host 1 | |
|
| | | Host 2
|
|______ | |
|
| | | |
|
| CDROM| | |
|
|______|______________|
|----------------------|
I tried it already slightly different by stopping KVM 1 and only waiting for
request of KVM 2 but there are some problems with the iovec buffer address I am
not able to use as a address of the buffer.
Has somebody experience with that or an idea of doing this maybe in a more
smarter way or is it generally possible to do that?
Thank you for your help
David Leib
SAP Research Belfast
SAP (UK) Limited I The Concourse I Queen's Road I Queen's Island
I Belfast BT3 9DT
mailto: david.l...@sap.com<mailto:mary.cla...@sap.com> I
www.sap.com/research<http://www.sap.com/research>
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