From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 1 Jan 2014 15:55:48 +0000 (+0100)
Subject: KVM: s390: convert handle_tpi()
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~39^2~8^2~67^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4799b557c9aa3a7b540121f2bece719f22229a21;p=pandora-kernel.git

KVM: s390: convert handle_tpi()

Convert handle_tpi() to new guest access functions.

The code now sets up a structure which is copied with a single call to
guest space instead of issuing several separate guest access calls.
This is necessary since the to be copied data may cross a page boundary.
If a protection exception happens while accessing any of the pages, the
instruction is suppressed and may not have modified any memory contents.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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