linux-kernel - Re: Developer wanted: AMD64 port of Jailhouse hypervisor

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Message-Id: <e08f8eed-2465-494e-a170-5246d3109c8b@googlegroups.com>
Date:	Wed, 23 Apr 2014 01:49:06 -0700 (PDT)
From:	Carlo Vitucci <vitucci.carlo@...il.com>
To:	jailhouse-dev@...glegroups.com
Cc:	Carlo Vitucci <vitucci.carlo@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"Sabony, Mazda" <Mazda.Sabony@....com>
Subject: Re: Developer wanted: AMD64 port of Jailhouse hypervisor

Il giorno mercoledì 23 aprile 2014 10:43:40 UTC+2, J. Kiszka ha scritto:
> 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

Sorry Jan,
 my misyake. I was referring to ARMv8 architecture, but I wrote AMD64 at the beginning instead of ARM64... sorry for the confusion!
BR/
Carlo