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diff --git a/contrib/opencsd/decoder/include/common/ocsd_pe_context.h b/contrib/opencsd/decoder/include/common/ocsd_pe_context.h
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+++ b/contrib/opencsd/decoder/include/common/ocsd_pe_context.h
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+/*
+ * \file       ocsd_pe_context.h
+ * \brief      OpenCSD : Wrapper class for PE context 
+ * 
+ * \copyright  Copyright (c) 2016, ARM Limited. All Rights Reserved.
+ */
+
+/* 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, 
+ * this list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the above copyright notice, 
+ * this list of conditions and the following disclaimer in the documentation 
+ * and/or other materials provided with the distribution. 
+ * 
+ * 3. Neither the name of the copyright holder nor the names of its contributors 
+ * may be used to endorse or promote products derived from this software without 
+ * specific prior written permission. 
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' AND 
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */ 
+#ifndef ARM_OCSD_PE_CONTEXT_H_INCLUDED
+#define ARM_OCSD_PE_CONTEXT_H_INCLUDED
+
+#include "opencsd/ocsd_if_types.h"
+
+/*! @class OcsdPeContext 
+ *  @brief Handler for the ocsd_pe_context structure.
+ *
+ *  Reads and writes structure values, enforcing interaction rules between values
+ *  and flags.
+ */
+class OcsdPeContext 
+{
+public:
+    OcsdPeContext();
+    OcsdPeContext(const ocsd_pe_context *context);
+    ~OcsdPeContext() {};
+
+    OcsdPeContext &operator =(const OcsdPeContext &ctxt);
+    OcsdPeContext &operator =(const ocsd_pe_context *context);
+
+    void resetCtxt();
+
+    void setSecLevel(const ocsd_sec_level sl) { m_context.security_level = sl; };
+    void setEL(const ocsd_ex_level el) { m_context.exception_level = el; m_context.el_valid = el > ocsd_EL_unknown ? 1 : 0; };
+    void setCtxtID(const uint32_t id) { m_context.context_id = id; m_context.ctxt_id_valid = 1; };
+    void setVMID(const uint32_t id) { m_context.vmid = id; m_context.vmid_valid = 1; };
+    void set64bit(const bool is64bit) { m_context.bits64 = is64bit ? 1 : 0; };
+
+    const ocsd_sec_level getSecLevel() const { return m_context.security_level; };
+    const ocsd_ex_level getEL() const { return m_context.exception_level; };
+    const bool ELvalid() const { return (m_context.el_valid == 1); };
+    const uint32_t getCtxtID() const { return (m_context.ctxt_id_valid == 1) ? m_context.context_id : 0; };
+    const bool ctxtIDvalid() const { return (m_context.ctxt_id_valid == 1); };
+    const uint32_t getVMID() const { return (m_context.vmid_valid == 1) ? m_context.vmid : 0; };
+    const bool VMIDvalid() const {  return (m_context.vmid_valid == 1); };
+
+    // only allow an immutable copy of the structure out to C-API land.
+    operator const ocsd_pe_context &() const { return m_context; };
+
+private:
+    ocsd_pe_context m_context;
+};
+
+inline OcsdPeContext::OcsdPeContext()
+{
+    resetCtxt();
+}
+
+inline OcsdPeContext::OcsdPeContext(const ocsd_pe_context *context)
+{
+    m_context = *context;
+}
+
+inline void OcsdPeContext::resetCtxt()
+{
+    // initialise the context
+    m_context.bits64 = 0;
+    m_context.context_id = 0;
+    m_context.ctxt_id_valid = 0;
+    m_context.el_valid = 0;
+    m_context.exception_level = ocsd_EL_unknown;
+    m_context.security_level = ocsd_sec_secure;
+    m_context.vmid = 0;
+    m_context.vmid_valid = 0;
+}
+
+inline OcsdPeContext & OcsdPeContext::operator =(const OcsdPeContext &ctxt)
+{
+    m_context = ctxt;
+    return *this;
+}
+
+inline OcsdPeContext & OcsdPeContext::operator =(const ocsd_pe_context *context)
+{
+    m_context = *context;
+    return *this;
+}
+
+
+#endif // ARM_OCSD_PE_CONTEXT_H_INCLUDED
+
+/* End of File ocsd_pe_context.h */