From: Nadav Amit <namit@cs.technion.ac.il>
To: pbonzini@redhat.com
Cc: gleb@kernel.org, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
        joro@8bytes.org, Nadav Amit <namit@cs.technion.ac.il>
Subject: [PATCH 0/3] Correct monitor-mwait emulation as nop
Date: Wed, 18 Jun 2014 17:19:33 +0300
Message-Id: <1403101176-23664-1-git-send-email-namit@cs.technion.ac.il>
Sender: linux-kernel-owner@vger.kernel.org

KVM handles monitor-mwait as nop, but does not check any of the preconditions
for the instructions.  These instructions may generate all kind of exceptions
(#UD, #PF, #GP, #SS). They can also be executed in real-mode.  This patch-set
moves the handling of monitor-mwait to the emulator, to allow their execution
in either real-mode or protected-mode.  It tries to follow the SDM in checking
the preconditions and generating the necassary exceptions.

Thanks for reviewing the patch. Please try it with OS X to make sure it works
properly without generating unnecassary exception.

Nadav Amit (3):
  KVM: x86: Emulator flag for instruction with no big real mode
  KVM: x86: Emulator support for #UD on CPL>0
  KVM: x86: correct mwait and monitor emulation

 arch/x86/kvm/emulate.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++----
 arch/x86/kvm/svm.c     | 22 ++------------------
 arch/x86/kvm/vmx.c     | 27 ++++++++++---------------
 3 files changed, 64 insertions(+), 40 deletions(-)

-- 
1.9.1

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