From: Avi Kivity <avi@redhat.com>
Date: Mon, 3 Jan 2011 12:28:52 +0000 (+0200)
Subject: KVM: VMX: Avoid leaking fake realmode state to userspace
X-Git-Tag: v2.6.39-rc1~436^2~50
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a9179499350d30446d8983d272a9157963604b0f;p=pandora-kernel.git

KVM: VMX: Avoid leaking fake realmode state to userspace

When emulating real mode, we fake some state:

 - tr.base points to a fake vm86 tss
 - segment registers are made to conform to vm86 restrictions

change vmx_get_segment() not to expose this fake state to userspace;
instead, return the original state.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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