Re: [uml-devel] UML: Access to a host device from UML

[Anton I. <ant...@ko...>]

I do not think that this is possible without an additional device in the 
UML itself.


In fact, if you want two processes in two different UML instances to 
communicate in-between themselves you should aim at a UML device. The 
kernel device is probably suprlus to requirements as the two UML 
instances can communicate between themselves within the host userspace 
using any of the mechanisms available for that.


A.


On 2/20/19 6:36 PM, Pablo Pessolani wrote:
> Hi:
>         I wrote an IPC mechanism as a Linux kernel module. The access 
> to their services is through a dummy character device called /dev/dvk 
> using ioctl(). Therefore, only open(), ioctl() and close() system 
> calls are used.
>         How can a process running within an UML Guest access the 
> /dev/dvk host device?  (humfs??)
>         The idea is to communicate two o more UML instances through 
> this IPC mechanism.
>         Thanks in advance.
> Regards.
> PAP
>
>
>
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-- 
Anton R Ivanov

http://www.kot-begemot.co.uk