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On Wed, Sep 14, 2016 at 01:28:10AM -0700, ludwig jaffe wrote:
> Am Montag, 12. September 2016 19:09:31 UTC+2 schrieb Jan Betlach:
> > I am about to reinstall my Qubes. Does it make sense to wait for 4.0
> > release (obviously depends on its ETA) or should I install current 3.2 and
> > upgrade to 4.0 later. The question is how difficult it is to upgrade if
> > possible at all.
>
>
> Is it possible to down-patch the 4.0 to use older CPUs?
> So I guess only the version of XEN used, is the critical component that locks
> out the older CPUs.
> Right?
> I would like to suggest to make a fork to support older CPUs. So one can
> build an old-version 4.0. What would be needed to do so?
Requiring VT-x/AMD-v with SLAT/EPT/RVI + VT-d/AMD-Vi is an implication
of our _decision_, to increase security[1], not a technical
requirement of some software component. But this decision means that
Qubes-specific component will no longer support non-compatible systems.
[1]
https://www.qubes-os.org/news/2016/07/21/new-hw-certification-for-q4/
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Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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