From: Joerg Roedel <joerg.roedel@amd.com>
Date: Mon, 29 Nov 2010 16:51:49 +0000 (+0100)
Subject: KVM: X86: Don't report L2 emulation failures to user-space
X-Git-Tag: v2.6.38-rc1~244^2~55
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fc3a9157d3148ab91039c75423da8ef97be3e105;p=pandora-kernel.git

KVM: X86: Don't report L2 emulation failures to user-space

This patch prevents that emulation failures which result
from emulating an instruction for an L2-Guest results in
being reported to userspace.
Without this patch a malicious L2-Guest would be able to
kill the L1 by triggering a race-condition between an vmexit
and the instruction emulator.
With this patch the L2 will most likely only kill itself in
this situation.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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