Re: [Xen-devel] HVM Driver Domain

[Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>]

On Mon, Jan 20, 2020 at 06:07:57PM +0000, tosher 1 wrote:
> Hi all,
> 
> I was doing some experiments on the Xen network Driver Domain using Ubuntu 
> 18.04.  I was able to see the driver domain works fine when I run it in PV 
> mode. However, I wasn't able to make the driver domain work when I run it in 
> HVM mode. I get the following error when I want my DomU to use HVM driver 
> domain for network backend.
> 
> libxl: error: libxl_nic.c:652:libxl__device_nic_set_devids: Domain 25:Unable 
> to set nic defaults for nic 0
> 
> Other than this, I didn't get any log messages from dmesg, xl dmesg commands, 
> and files from /var/log/xen/ directory regarding this failure. Therefore, I 
> was wondering if it is even possible to create an HVM Driver Domain. Please 
> let me know what you think.

It's definitely possible, as we use it extensively in Qubes, including
for network device backend.
Can you give more details about your setup? Which Xen version, what your
domU configuration looks like (especially vif setting)?

-- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?

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