Re: Developer wanted: AMD64 port of Jailhouse hypervisor

[Jan Kiszka <jan.kiszka@siemens.com>]

On 2014-04-23 08:21, Carlo Vitucci wrote:
> Il giorno lunedì 14 aprile 2014 20:27:16 UTC+2, J. Kiszka ha scritto:
>> Hi all,
>>
>>
>>
>> so far the Linux-based Jailhouse hypervisor [1] is only available for
>>
>> Intel x86 CPUs. I'm now very happy to announce that AMD is offering to
>>
>> sponsor the initial port of Jailhouse to the AMD64 architecture. Our
>>
>> resources here are unfortunately bound to different tasks, but if anyone
>>
>> out there with the required skills is interested in working on this
>>
>> project, just reply to this email or contact me and Mazda directly.
>>
>>
>>
>> The work to be done is manageable: we basically need corresponding
>>
>> implementations of vmx.c and vtd.c in the current Jailhouse code base -
>>
>> provided our existing abstractions were done right. Someone familiar
>>
>> with virtualization on x86 in general and, ideally, even on AMD
>>
>> processors should be able to complete this task within a couple of weeks.
>>
>>
>>
>> For more details on the Jailhouse architecture and implementations, see
>>
>> our slowly growing Documentation folder in the source tree or simply ask
>>
>> on the mailing list.
>>
>>
>>
>> Jan
>>
>>
>>
>> [1] https://github.com/siemens/jailhouse
>>
>>
>>
>> -- 
>>
>> Siemens AG, Corporate Technology, CT RTC ITP SES-DE
>>
>> Corporate Competence Center Embedded Linux
> 
> Hello jailhouse,
>  just a thought, if I could. AMD64 is not officially delivered and one
>  of the most important new features, that is the direct interrupt delivery,
>  is without a final specification. in other words, ARMv8 is the only suitable
>  architecture for Jailhouse porting, but there is still a bit fog around.

I'm not sure if I got your point yet: AMD64 stands for the
well-established x86-64 architecture with AMD-specific parts like the
virtualization extensions. All these transistors and specs are broadly
available for years.

Regarding direct interrupt delivery: on Intel, we do not depend on
specific hardware support to provide this feature, and I bet we can port
that approach to AMD as well.

Jan

-- 
Siemens AG, Corporate Technology, CT RTC ITP SES-DE
Corporate Competence Center Embedded Linux