From: Avi Kivity <avi@redhat.com>
Date: Sun, 13 May 2012 16:53:23 +0000 (+0300)
Subject: KVM: VMX: Fix %ds/%es clobber
X-Git-Tag: v3.5-rc1~88^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=512d5649e8dc3ed36f2ebf0818da64a4d4c2544a;p=pandora-kernel.git

KVM: VMX: Fix %ds/%es clobber

The vmx exit code unconditionally restores %ds and %es to __USER_DS.  This
can override the user's values, since %ds and %es are not saved and restored
in x86_64 syscalls.  In practice, this isn't dangerous since nobody uses
segment registers in long mode, least of all programs that use KVM.

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

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