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Re: [Xen-devel] [RFC PATCH 0/2] XEN booting on i.MX8M platform

On 8/5/19 4:38 AM, Julien Grall wrote:
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> Hi,
> I have CCed one person from Donerworks. IIRC they have been using the IMX8 in
> the past.


        Have you checked out the NXP Xen fork?


        While the work there hasn't been upstreamed yet, the support for the 
(QuadMax) is fairly complete.  There are some important differences between the
iMX8M and that SoC beyond those you've noted (no A72 cluster, no SMMU, and no
System Control Unit (SCU)), but it might solve some of the issues you've been
running into or avoid yet unknown issues when you attempt to boot a guest 


> On 03/08/2019 21:54, Amit Tomer wrote:
>>> I have seen multiple threads from you pointing at issues on the IMX.8. Have 
>>> they
>>> been resolved? Is this series enough to get Xen and Dom0 booting on the NXP
>>> platform?
>> Yeah, most of issues are resolved now and mainline DTS is used to
>> bring XEN on this i.MX8 platform.
>> Though there is small change that comment out GPC (which is used root
>> interrupt parent) and instead use GIC
>> is done in DTS.
> What are the consequences to change the interrupt parent?
>> The patches has been tested booting DOM0 with ramfs.
> I don't think this is enough to claim support for Xen on the I.MX8M platform.
> What I don't want to end up is having yet another UART driver to maintain in 
> Xen
> but the platform is still unusable.
> You should at least be able to boot multiple domains and use a fully fledge
> distro (yocto, Debian...) from a mass storage (and possibly network).
> Cheers,
> --
> Julien Grall
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