From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Roland Dreier <roland@kernel.org>
Cc: "ksummit-discuss@lists.linuxfoundation.org"
<ksummit-discuss@lists.linuxfoundation.org>
Subject: Re: [Ksummit-discuss] [CORE TOPIC] Device error handling / reporting / isolation
Date: Wed, 14 May 2014 11:43:34 +1000 [thread overview]
Message-ID: <1400031814.17624.218.camel@pasglop> (raw)
In-Reply-To: <CAG4TOxM=d=L4XSP8GM2trYSbcSR2jgt-3jmbky0qyLADgeu0Hw@mail.gmail.com>
On Fri, 2014-05-09 at 12:53 -0700, Roland Dreier wrote:
>
> Stuff without a device driver should be OK, since we don't turn on any
> bits in the PCI command register until pci_enable_device(). So the
> device can't be a bus master until someone claims it.
Provided you trust the device not to utterly ignore that bit ...
> For devices with a driver, I guess it couldn't hurt. But my wifi
> adapter can already sniff and modify all my network traffic, etc.
>
> I do agree that it's a bit sad that the current state of VT-d is such
> that distros don't use it by default.
Cheers,
Ben.
next prev parent reply other threads:[~2014-05-14 1:43 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-08 12:37 David Woodhouse
2014-05-08 18:03 ` Bjorn Helgaas
2014-05-08 20:00 ` Rafael J. Wysocki
2014-05-08 19:56 ` James Bottomley
2014-05-09 8:55 ` David Woodhouse
2014-05-09 11:31 ` Laurent Pinchart
2014-05-14 1:28 ` Benjamin Herrenschmidt
2014-05-09 17:48 ` Roland Dreier
2014-05-09 17:58 ` Matthew Wilcox
2014-05-09 18:08 ` Roland Dreier
2014-05-14 1:40 ` Benjamin Herrenschmidt
2014-05-09 18:05 ` Will Deacon
2014-05-12 15:03 ` Joerg Roedel
2014-05-09 19:37 ` Josh Triplett
2014-05-09 19:44 ` David Woodhouse
2014-05-09 19:53 ` Roland Dreier
2014-05-09 20:13 ` Luck, Tony
2014-05-09 20:19 ` James Bottomley
2014-05-10 1:09 ` Laurent Pinchart
2014-05-11 22:43 ` Daniel Vetter
2014-05-12 15:07 ` Joerg Roedel
2014-05-12 15:35 ` Daniel Vetter
2014-05-12 16:16 ` Andy Lutomirski
2014-05-12 16:28 ` Joerg Roedel
2014-05-12 16:59 ` Laurent Pinchart
2014-05-12 17:15 ` Joerg Roedel
2014-05-12 17:11 ` Daniel Vetter
2014-05-12 17:40 ` Joerg Roedel
2014-05-13 10:06 ` Daniel Vetter
2014-05-12 17:04 ` Daniel Vetter
2014-05-13 11:27 ` David Woodhouse
2014-05-13 17:25 ` Daniel Vetter
2014-05-14 1:50 ` Benjamin Herrenschmidt
2014-05-14 20:09 ` Daniel Vetter
2014-05-15 1:08 ` Benjamin Herrenschmidt
2014-05-12 16:26 ` Joerg Roedel
2014-05-12 14:58 ` Joerg Roedel
2014-05-13 14:37 ` David Woodhouse
2014-05-14 1:46 ` Benjamin Herrenschmidt
2014-05-14 1:43 ` Benjamin Herrenschmidt [this message]
2014-05-14 1:42 ` Benjamin Herrenschmidt
2014-05-14 1:24 ` Benjamin Herrenschmidt
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