From: Alexander Graf <agraf@suse.de>
Date: Wed, 15 Feb 2012 13:28:48 +0000 (+0000)
Subject: KVM: PPC: e500mc: Add doorbell emulation support
X-Git-Tag: v3.5-rc1~88^2~78
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4ab969199ec6a14604ceaffb21fe78cc4881d3b8;p=pandora-kernel.git

KVM: PPC: e500mc: Add doorbell emulation support

When one vcpu wants to kick another, it can issue a special IPI instruction
called msgsnd. This patch emulates this instruction, its clearing counterpart
and the infrastructure required to actually trigger that interrupt inside
a guest vcpu.

With this patch, SMP guests on e500mc work.

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