From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: dev@dpdk.org,
Christian Ehrhardt <christian.ehrhardt@canonical.com>,
Luca Boccassi <bluca@debian.org>,
Maxime Coquelin <maxime.coquelin@redhat.com>,
Neil Horman <nhorman@tuxdriver.com>
Subject: Re: [dpdk-dev] [PATCH] igb_uio: fail and log if kernel lock down is enabled
Date: Wed, 16 May 2018 10:53:41 +0100 [thread overview]
Message-ID: <2b391ab8-270a-c038-5cbe-58886fb43a9c@intel.com> (raw)
In-Reply-To: <20180515115232.5648f749@xeon-e3>
On 5/15/2018 7:52 PM, Stephen Hemminger wrote:
> On Tue, 15 May 2018 17:56:12 +0100
> Ferruh Yigit <ferruh.yigit@intel.com> wrote:
>
>> When EFI secure boot is enabled, it is possible to lock down kernel and
>> prevent accessing device BARs and this makes igb_uio unusable.
>
> This distro specific (and not upstream) stuff in igb_uio is getting
> to be a significantly ugly. Can this be detected by seeing if one
> of the calls (such setup bars) failing?
Agreed that it is ugly.
igb_uio already will fail in these systems, we can detect failure but the target
is detect reason of failure and inform user about root cause.
I can't think of any other way than using distro specific stuff for this case.
>
> The best long term solution would be getting all kernel modules upstream;
> but it looks like that will never happen due to UIO maintainer resistance.
>
next prev parent reply other threads:[~2018-05-16 9:53 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-15 16:56 Ferruh Yigit
2018-05-15 17:47 ` Luca Boccassi
2018-05-16 9:45 ` Ferruh Yigit
2018-05-16 9:56 ` Luca Boccassi
2018-05-15 18:52 ` Stephen Hemminger
2018-05-16 9:53 ` Ferruh Yigit [this message]
2018-05-16 10:18 ` [dpdk-dev] [PATCH v2] " Ferruh Yigit
2018-05-16 10:50 ` Luca Boccassi
2018-05-16 14:42 ` [dpdk-dev] [PATCH v3] " Ferruh Yigit
2018-05-17 11:34 ` Neil Horman
2018-05-17 13:26 ` Ferruh Yigit
2018-05-17 18:16 ` Neil Horman
2018-06-27 14:39 ` Thomas Monjalon
2018-06-29 7:04 ` David Marchand
2018-06-29 9:35 ` Ferruh Yigit
2018-05-16 11:47 ` [dpdk-dev] [PATCH] " Neil Horman
2018-05-17 13:23 ` Ferruh Yigit
2018-05-17 14:39 ` Stephen Hemminger
2018-05-17 19:49 ` Neil Horman
2018-05-22 15:23 ` Ferruh Yigit
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