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Date:      Sat, 27 Mar 2021 21:58:51 +0100
From:      Andrea Venturoli <ml@netfence.it>
To:        Chris <bsd-lists@bsdforge.com>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: cost/benefit of some src.conf options
Message-ID:  <8dc8d8b5-2f54-ce3e-66eb-515ea86642c6@netfence.it>
In-Reply-To: <3bd2010aa225111baa2e813071a88b27@bsdforge.com>
References:  <YF3pHo5Pj5Swm90O@ceres.zyxst.net> <56F46324-59BB-4CC2-BE90-5FF63C4554ED@FreeBSD.org> <79a899c3-368e-20d2-8ac7-0741e00fa3b1@netfence.it> <3bd2010aa225111baa2e813071a88b27@bsdforge.com>

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On 3/26/21 10:35 PM, Chris wrote:

> My understanding is that retpoline is really only of interest if your 
> box might
> accessed *locally* by *untrusted* individuals.

Thanks.

Does an user on a guest VM qualifies as *untrusted*?
Or does a closed-source software on such VM?

In any case, if RETpoline is so, then is IBRS.
The comparison would still be interesting to me.



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