From: Nadav Amit <namit@cs.technion.ac.il>
Date: Sun, 15 Jun 2014 13:13:01 +0000 (+0300)
Subject: KVM: x86: NOP emulation clears (incorrectly) the high 32-bits of RAX
X-Git-Tag: cleanup-for-v3.18~143^2~75
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a825f5cc4a8455663562809748240169cb9bc2c0;p=pandora-kernel.git

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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