From: "Woodhouse, David" <david.woodhouse@intel.com>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: "Song, Youquan" <youquan.song@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"mingo@elte.hu" <mingo@elte.hu>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"hpa@zytor.com" <hpa@zytor.com>,
"hpa@linux.intel.com" <hpa@linux.intel.com>,
"Kay, Allen M" <allen.m.kay@intel.com>,
"Siddha, Suresh B" <suresh.b.siddha@intel.com>,
"Liu, Kent" <kent.liu@intel.com>,
Youquan Song <youquan.song@linux.intel.com>
Subject: Re: [PATCH v2] x86, vt-d: enable x2apic opt out
Date: Tue, 17 May 2011 10:49:08 +0100 [thread overview]
Message-ID: <1305625748.8008.98.camel@i7.infradead.org> (raw)
In-Reply-To: <1305577977.3146.112.camel@x201>
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On Mon, 2011-05-16 at 21:32 +0100, Alex Williamson wrote:
> Just a guess, but the OEM probably hasn't updated their SMI handlers to
> understand x2apic yet and won't before the product ships because some
> other OS doesn't bother to use x2apic.
Yay, crappy closed-source BIOS holds back the platform yet again.
> We can still enable interrupt remapping w/o x2apic though, so I'm
> curious what other irq injection tricks you're referring to. Thanks,
http://www.invisiblethingslab.com/resources/2011/Software%20Attacks%20on%20Intel%20VT-d.pdf
--
David Woodhouse Open Source Technology Centre
David.Woodhouse@intel.com Intel Corporation
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next prev parent reply other threads:[~2011-05-17 9:50 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-14 7:06 Youquan Song
2011-05-11 15:07 ` Woodhouse, David
2011-05-12 3:39 ` Youquan Song
2011-05-11 15:39 ` David Woodhouse
2011-05-11 22:38 ` Valdis.Kletnieks
2011-05-16 20:32 ` Alex Williamson
2011-05-17 9:49 ` Woodhouse, David [this message]
2011-05-17 12:50 ` Alex Williamson
2011-05-18 22:58 ` Woodhouse, David
2011-05-19 5:43 ` Alex Williamson
2011-05-11 17:21 ` Woodhouse, David
2011-05-12 1:52 ` Youquan Song
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