Re: [Xen-devel] XEN on R-CAR H3

[Oleksandr <olekstysh@xxxxxxxxx>]

On 18.02.19 14:53, Amit Tomer wrote:

Hi

> Hi,
> > I am wondering what Android version you are using. What is your use-case?
> We are trying with Android O 8.1 version.
>
> > This is our development product
> > https://github.com/xen-troops/meta-xt-prod-devel
> > which in addition to Linux guest contains Android P guest.
> After making some changes in domU bootargs, we can now see
> console service trying to start but goes into loop with message:
>
> [    6.432864] init: starting service 'console'...
> [    6.433974] init: property_set("ro.boottime.console", "6432469848")
> failed: property already set
> [    6.434580] init: setpgid failed for console: Operation not permitted
> [    6.434743] init: cannot setexeccon('u:r:shell:s0') for console:
> Permission denied
> [    6.435434] init: Service 'console' (pid 781) killed by signal 6
> [    6.435483] init: Sending signal 9 to service 'console' (pid 781)
> process group...
> [    6.435608] init: Successfully killed process cgroup uid 2000 pid 781 in 0ms
Not completely sure, but looks like the SELinux issue.


> Also, one other query. In order to get graphics and audio up in dom0
> kernel, do we
> need to load special/proprietary graphics/audio driver with mainline kernel
> and Ubuntu Debian rootfs on H3 platform?

Unfortunately, I can't say regarding mainline kernel and Ubuntu Debian 
rootfs.
We use Linux (as rootfs as well) from Renesas BSP [1] in our DomD. In 
our development setup we have thin Dom0 (generic ARM V8 machine without 
any devices assigned), and all devices (including audio/display/graphic) 
are pass throughed to DomD (driver domain). So this DomD is entirely 
based on Renesas BSP.

So, I think, if you base your Dom0 (I assume it is 1:1 mapped) on BSP 
you will get audio/graphic functional out of the box.  But for mainline 
kernel usage, the out-tree graphics kernel driver should be modified to 
use recent Linux API.
[1]  https://elinux.org/R-Car/Boards/Yocto-Gen3

> Thanks
> -Amit
--
Regards,

Oleksandr Tyshchenko


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