From a825f5cc4a8455663562809748240169cb9bc2c0 Mon Sep 17 00:00:00 2001
From: Nadav Amit <namit@cs.technion.ac.il>
Date: Sun, 15 Jun 2014 16:13:01 +0300
Subject: [PATCH] KVM: x86: NOP emulation clears (incorrectly) the high 32-bits
 of RAX

On long-mode the current NOP (0x90) emulation still writes back to RAX.  As a
result, EAX is zero-extended and the high 32-bits of RAX are cleared.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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