Messages in this thread | | | Subject | Re: [PATCH 4/4] x86,module: Detect CRn and DRn manipulation | From | Jan Kiszka <> | Date | Wed, 8 Apr 2020 12:45:30 +0200 |
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On 08.04.20 11:04, Paolo Bonzini wrote: > On 08/04/20 10:58, Jan Kiszka wrote: >>> Why not contribute the Jailhouse loader into Linux? >> >> Definitely planned. But right now it would add the burden of managing >> the interface between loader and hypervisor carefully. Currently it is >> internal to Jailhouse and maintained in lock-step, without any backward >> compatibility. > > How often does that change?
Not often, but right now we are at a critical point, starting to explore booting Jailhouse before Linux [1]. That may actually help to settle the interface and move things forward.
Another to-do is overcoming the need for having to map the hypervisor at a fixed location into the kernel address space. Not needed on arm64, still required on 32-bit ARM (well...) and x86 (more important). I would dislike pushing such legacy to upstream.
Jan
[1] https://www.mail-archive.com/jailhouse-dev@googlegroups.com/msg08389.html
-- Siemens AG, Corporate Technology, CT RDA IOT SES-DE Corporate Competence Center Embedded Linux
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