From: Juergen Gross <jgross@suse.com>
Date: Fri, 20 Mar 2015 12:55:39 +0000 (+0100)
Subject: xen/balloon: before adding hotplugged memory, set frames to invalid
X-Git-Tag: omap-for-v4.1/fixes-rc1~238^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3c56b3a12ce52f361468cbdd2f79b2f3b8da0ea6;p=pandora-kernel.git

xen/balloon: before adding hotplugged memory, set frames to invalid

Commit 25b884a83d487fd62c3de7ac1ab5549979188482 ("x86/xen: set
regions above the end of RAM as 1:1") introduced a regression.

To be able to add memory pages which were added via memory hotplug to
a pv domain, the pages must be "invalid" instead of "identity" in the
p2m list before they can be added.

Suggested-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Cc: <stable@vger.kernel.org> # 3.16+
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
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