From: Alexander Graf <agraf@suse.de>
Date: Thu, 29 Jul 2010 12:48:04 +0000 (+0200)
Subject: KVM: PPC: PV mtmsrd L=1
X-Git-Tag: v2.6.37-rc1~142^2~233
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=819a63dc792b0888edd3eda306a9e1e049dcbb1c;p=pandora-kernel.git

KVM: PPC: PV mtmsrd L=1

The PowerPC ISA has a special instruction for mtmsr that only changes the EE
and RI bits, namely the L=1 form.

Since that one is reasonably often occuring and simple to implement, let's
go with this first. Writing EE=0 is always just a store. Doing EE=1 also
requires us to check for pending interrupts and if necessary exit back to the
hypervisor.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
---

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