linux-kernel - Re: [PATCH 3/5] vfio/pci: add qat devices to blocklist

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Message-ID: <20200710154433.GA62583@bjorn-Precision-5520>
Date:   Fri, 10 Jul 2020 10:44:33 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Giovanni Cabiddu <giovanni.cabiddu@...el.com>
Cc:     alex.williamson@...hat.com, herbert@...dor.apana.org.au,
        cohuck@...hat.com, nhorman@...hat.com, vdronov@...hat.com,
        bhelgaas@...gle.com, mark.a.chambers@...el.com,
        gordon.mcfadden@...el.com, ahsan.atta@...el.com,
        qat-linux@...el.com, kvm@...r.kernel.org,
        linux-crypto@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/5] vfio/pci: add qat devices to blocklist

On Fri, Jul 10, 2020 at 10:37:45AM -0500, Bjorn Helgaas wrote:
> On Fri, Jul 10, 2020 at 04:08:19PM +0100, Giovanni Cabiddu wrote:
> > On Wed, Jul 01, 2020 at 04:28:12PM -0500, Bjorn Helgaas wrote:
> > > On Wed, Jul 01, 2020 at 12:03:00PM +0100, Giovanni Cabiddu wrote:
> > > > The current generation of Intel® QuickAssist Technology devices
> > > > are not designed to run in an untrusted environment because of the
> > > > following issues reported in the release notes in
> > > > https://01.org/intel-quickassist-technology:
> > > 
> > > It would be nice if this link were directly clickable, e.g., if there
> > > were no trailing ":" or something.
> > > 
> > > And it would be even better if it went to a specific doc that
> > > described these issues.  I assume these are errata, and it's not easy
> > > to figure out which doc mentions them.
> > Sure. I will fix the commit message in the next revision and point to the
> > actual document:
> > https://01.org/sites/default/files/downloads/336211-015-qatsoftwareforlinux-rn-hwv1.7-final.pdf
> 
> Since URLs tend to go stale, please also include the Intel document
> number and title.

Oh, and is "01.org" really the right place for that?  It looks like an
Intel document, so I'd expect it to be somewhere on intel.com.

I'm still a little confused.  That doc seems to be about *software*
and Linux software in particular.  But when you said these "devices
are not designed to run in an untrusted environment", I thought you
meant there was some *hardware* design issue that caused a problem.

Bjorn