[Xen-devel] [PATCH][VTD][QUIRK] add spin lock across snb preambl

To:	xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject:	[Xen-devel] [PATCH][VTD][QUIRK] add spin lock across snb preamble and postamble functions
From:	"Kay, Allen M" <allen.m.kay@xxxxxxxxx>
Date:	Mon, 7 Feb 2011 16:31:50 -0800
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Cc:	Keir Fraser <keir@xxxxxxx>, Jan Beulich <JBeulich@xxxxxxxxxx>
Delivery-date:	Mon, 07 Feb 2011 16:32:45 -0800
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Thread-topic:	[PATCH][VTD][QUIRK] add spin lock across snb preamble and postamble functions

Added a spinlock across snb_vtd_ops_preamble() and snb_vtd_ops_postamble() to 
make modifications to IGD registers atomic.  Continue keeping snb_igd_quirk 
default off.

Signed-off-by: Allen Kay <allen.m.kay@xxxxxxxxx>

lock02072.patch
Description: lock02072.patch

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[Xen-devel] [PATCH][VTD][QUIRK] add spin lock across snb preamble and po