From: Jean Delvare <jdelvare@suse.de>
To: Neil Horman <nhorman@tuxdriver.com>
Cc: Joerg Roedel <joro@8bytes.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Bjorn Helgaas <bhelgaas@google.com>,
linux-pci <linux-pci@vger.kernel.org>
Subject: Interrupt remapping quirk tainting the kernel
Date: Mon, 31 Mar 2014 10:17:48 +0200 [thread overview]
Message-ID: <1396253868.23070.94.camel@chaos.site> (raw)
Hi Neil and all,
I have (once again) a question about this commit:
From: Neil Horman <nhorman@tuxdriver.com>
Date: Tue, 16 Apr 2013 20:38:32 +0000
Subject: iommu/vt-d: add quirk for broken interrupt remapping on 55XX chipsets
Git-commit: 03bbcb2e7e292838bb0244f5a7816d194c911d62
When interrupt remapping is disabled by this quirk, the kernel gets
tainted. What is the rationale for doing that?
The user can boot with intremap=off. That will also disable interrupt
remapping, as the quirk does, but not taint the kernel. If this is
considered OK then I fail to see why the quirk should behave differently
and taint the kernel.
Thanks,
--
Jean Delvare
SUSE L3 Support
next reply other threads:[~2014-03-31 8:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-31 8:17 Jean Delvare [this message]
2014-03-31 10:56 ` Interrupt remapping quirk tainting the kernel Neil Horman
2014-03-31 14:18 ` Jean Delvare
2014-03-31 15:07 ` Prarit Bhargava
2014-03-31 15:28 ` Neil Horman
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