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Date:      Wed, 11 Jan 2017 20:50:34 -0800
From:      <soralx@cydem.org>
To:        <kmacy@freebsd.org>
Cc:        <freebsd-virtualization@freebsd.org>
Subject:   Re: Issues with GTX960 on CentOS7 using bhyve PCI passthru (FreeBSD 11-RC2)
Message-ID:  <20170111205034.22623aaa@mscad14>
In-Reply-To: <CAHM0Q_ORKrqqUqQ0XQKzgkBrf1Z2Az=AZRW=XqvHkZPgGCeweQ@mail.gmail.com>
References:  <20170110003332.7cf8ba15@mscad14> <0de7e0fe-5680-b1be-bd57-6bf446c2fd38@talk2dom.com> <0c927784-3e3f-7946-fba9-c25001f4156c@talk2dom.com> <20170110180117.7f246b5a@mscad14> <20170111014544.70670784@mscad14> <93196ea2-5439-49ff-54fd-7b7273bdec85@freebsd.org> <20170111195402.785f27c6@mscad14> <CAHM0Q_ORKrqqUqQ0XQKzgkBrf1Z2Az=AZRW=XqvHkZPgGCeweQ@mail.gmail.com>

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> I hope you keep it up or at least figure out what the driver is doing.

Not in my plans at the moment. I prefer AMD GPUs over nV for OpenCL.
nVidia did (and does) serve me well for the last 10 year with their
excellent FreeBSD graphics driver: I had very few problems with it;
it's stable and well documented, and has the performance. Huge thanks
and respect to them for that [I just bought another low-end nVidia
card for my home computer].

But times a-changin'. We have things like OpenCL and virtualization
these days that are of interest and available to everyone (not just
the "professionals").

> If they haven't explicitly put in the license terms that virtualization
> is forbidden for consumer cards, there's nothing wrong with hot
> patching the driver ...

Why do you care about some license? It's your card, your computer,
so you're free to do what _you_ want with it. How can one "forbid"
virtualization? It's impossible. Only way is to design hardware and
firmware that is not amenable to VT -- but nobody would do that
nowadays.

> assuming that they don't do things like Skype
> does where it repeatedly checksums the memory image.

There are ways around things. But it is easier to buy AMD than to
fight someone's stupidity or incompetence.
 
> Good hunting.
> 
> -M

-- 
[SorAlx]  ridin' VN2000 Classic LT



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