---
cpukit/score/cpu/i386/cpu.c | 2 +-
cpukit/score/cpu/i386/include/rtems/score/cpu.h | 2 +-
.../cpu/i386/include/rtems/score/interrupts.h | 2 +-
.../score/cpu/i386/include/rtems/score/paravirt.h | 63 ++++++++++++++++++++++
cpukit/score/cpu/i386/include/rtems/score/types.h | 3 ++
5 files changed, 69 insertions(+), 3 deletions(-)
create mode 100644 cpukit/score/cpu/i386/include/rtems/score/paravirt.h
diff --git a/cpukit/score/cpu/i386/cpu.c b/cpukit/score/cpu/i386/cpu.c
index c9434f7..a16718a 100644
--- a/cpukit/score/cpu/i386/cpu.c
+++ b/cpukit/score/cpu/i386/cpu.c
@@ -199,7 +199,7 @@ uint32_t _CPU_ISR_Get_level( void )
{
uint32_t level;
-#if !defined(RTEMS_PARAVIRT)
+#if !defined(CPU_DISABLE_INLINE_ISR_DISABLE_ENABLE)
i386_get_interrupt_level( level );
#else
level = i386_get_interrupt_level();
diff --git a/cpukit/score/cpu/i386/include/rtems/score/cpu.h
b/cpukit/score/cpu/i386/include/rtems/score/cpu.h
index f78149c..f1ed932 100644
--- a/cpukit/score/cpu/i386/include/rtems/score/cpu.h
+++ b/cpukit/score/cpu/i386/include/rtems/score/cpu.h
@@ -381,7 +381,7 @@ extern Context_Control_fp _CPU_Null_fp_context;
* + set a particular level
*/
-#if !defined(RTEMS_PARAVIRT)
+#if !defined(CPU_DISABLE_INLINE_ISR_DISABLE_ENABLE)
#define _CPU_ISR_Disable( _level ) i386_disable_interrupts( _level )
#define _CPU_ISR_Enable( _level ) i386_enable_interrupts( _level )
diff --git a/cpukit/score/cpu/i386/include/rtems/score/interrupts.h
b/cpukit/score/cpu/i386/include/rtems/score/interrupts.h
index 3a7971c..c47176a 100644
--- a/cpukit/score/cpu/i386/include/rtems/score/interrupts.h
+++ b/cpukit/score/cpu/i386/include/rtems/score/interrupts.h
@@ -33,7 +33,7 @@ typedef int (*rtems_raw_irq_is_enabled) (const struct
__rtems_raw_irq_connect_d
*
*/
/**@{**/
-#if !defined(RTEMS_PARAVIRT)
+#if !defined(CPU_DISABLE_INLINE_ISR_DISABLE_ENABLE)
#define i386_disable_interrupts( _level ) \
{ \
__asm__ volatile ( "pushf ; \
diff --git a/cpukit/score/cpu/i386/include/rtems/score/paravirt.h
b/cpukit/score/cpu/i386/include/rtems/score/paravirt.h
new file mode 100644
index 0000000..788ffed
--- /dev/null
+++ b/cpukit/score/cpu/i386/include/rtems/score/paravirt.h
@@ -0,0 +1,63 @@
+/**
+ * @file
+ *
+ * @brief i386 Paravirtualization Definitions
+ *
+ * This include file contains definitions pertaining to paravirtualization
+ * of the i386 port.
+ */
+
+/*
+ * COPYRIGHT (c) 2018.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * The license and distribution terms for this file may in
+ * the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+
+#ifndef RTEMS_PARAVIRT
+#error "This file should only be included with paravirtualization is enabled."
+#endif
+
+#ifndef _RTEMS_SCORE_PARAVIRT_H
+#define _RTEMS_SCORE_PARAVIRT_H
+
+/**
+ * @defgroup Paravirti386 Paravirtualization i386 Support
+ *
+ * @ingroup Score
+ *
+ * This handler encapulates the functionality (primarily conditional
+ * feature defines) related to paravirtualization on the i386.
+ *
+ * Paravirtualization on the i386 makes the following assumptions:
+ *
+ * - RTEMS executes in user space
+ * - Interrupt enable/disable support using the MSR must be disabled
+ * and replaced with BSP provided methods which are adapted to the
+ * hosting environment.
+ */
+
+#ifndef ASM
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !ASM */
+
+/**
+ * In a paravirtualized environment, RTEMS executes in user space
+ * and cannot disable/enable external exceptions (e.g. interrupts).
+ * The BSP which acts as an adapter to the hosting environment will
+ * provide the interrupt enable/disable methods.
+ */
+#define CPU_DISABLE_INLINE_ISR_DISABLE_ENABLE
+
+#endif
diff --git a/cpukit/score/cpu/i386/include/rtems/score/types.h
b/cpukit/score/cpu/i386/include/rtems/score/types.h
index 00555d4..75414c4 100644
--- a/cpukit/score/cpu/i386/include/rtems/score/types.h
+++ b/cpukit/score/cpu/i386/include/rtems/score/types.h
@@ -20,6 +20,9 @@
#define _RTEMS_SCORE_TYPES_H
#include <rtems/score/basedefs.h>
+#if defined(RTEMS_PARAVIRT)
+#include <rtems/score/paravirt.h>
+#endif
#ifndef ASM
--
1.8.3.1
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