diff --git a/doc/acrn.doxyfile b/doc/acrn.doxyfile
index b40c6c5eb..ba2fc4e0a 100644
--- a/doc/acrn.doxyfile
+++ b/doc/acrn.doxyfile
@@ -804,7 +804,7 @@ INPUT                  =  custom-doxygen/mainpage.md \
                           ../hypervisor/include/dm/vioapic.h \
                           ../hypervisor/include/dm/vpic.h \
                           ../hypervisor/include/dm/io_req.h \
-                          ../hypervisor/include/arch/x86/guest/io_emul.h \
+                          ../hypervisor/include/arch/x86/guest/vmx_io.h \
                           ../hypervisor/include/arch/x86/guest/assign.h \
                           ../hypervisor/include/common/hypercall.h \
                           ../hypervisor/include/public/acrn_common.h \
diff --git a/hypervisor/Makefile b/hypervisor/Makefile
index e8cb5ae0e..f72edae0e 100644
--- a/hypervisor/Makefile
+++ b/hypervisor/Makefile
@@ -190,7 +190,7 @@ C_SRCS += arch/x86/guest/ucode.c
 C_SRCS += arch/x86/guest/pm.c
 C_SRCS += arch/x86/guest/assign.c
 C_SRCS += arch/x86/guest/ept.c
-C_SRCS += arch/x86/guest/io_emul.c
+C_SRCS += arch/x86/guest/vmx_io.c
 C_SRCS += arch/x86/guest/virq.c
 C_SRCS += arch/x86/guest/virtual_cr.c
 C_SRCS += arch/x86/guest/vmcs.c
diff --git a/hypervisor/arch/x86/guest/vmexit.c b/hypervisor/arch/x86/guest/vmexit.c
index acc91f01d..9088191ff 100644
--- a/hypervisor/arch/x86/guest/vmexit.c
+++ b/hypervisor/arch/x86/guest/vmexit.c
@@ -12,7 +12,7 @@
 #include <vcpu.h>
 #include <vm.h>
 #include <vmexit.h>
-#include <io_emul.h>
+#include <vmx_io.h>
 #include <ept.h>
 #include <vtd.h>
 #include <vcpuid.h>
diff --git a/hypervisor/arch/x86/guest/io_emul.c b/hypervisor/arch/x86/guest/vmx_io.c
similarity index 100%
rename from hypervisor/arch/x86/guest/io_emul.c
rename to hypervisor/arch/x86/guest/vmx_io.c
diff --git a/hypervisor/include/arch/x86/guest/vm.h b/hypervisor/include/arch/x86/guest/vm.h
index 68050552c..3ebdf7a7b 100644
--- a/hypervisor/include/arch/x86/guest/vm.h
+++ b/hypervisor/include/arch/x86/guest/vm.h
@@ -20,7 +20,7 @@
 #include <vcpu.h>
 #include <vioapic.h>
 #include <vpic.h>
-#include <io_emul.h>
+#include <vmx_io.h>
 #include <vuart.h>
 #include <trusty.h>
 #include <vcpuid.h>
diff --git a/hypervisor/include/arch/x86/guest/io_emul.h b/hypervisor/include/arch/x86/guest/vmx_io.h
similarity index 100%
rename from hypervisor/include/arch/x86/guest/io_emul.h
rename to hypervisor/include/arch/x86/guest/vmx_io.h
diff --git a/hypervisor/include/arch/x86/hv_arch.h b/hypervisor/include/arch/x86/hv_arch.h
index 86408800e..d3e0e2816 100644
--- a/hypervisor/include/arch/x86/hv_arch.h
+++ b/hypervisor/include/arch/x86/hv_arch.h
@@ -15,7 +15,7 @@
 #include <msr.h>
 #include <io.h>
 #include <io_req.h>
-#include <io_emul.h>
+#include <vmx_io.h>
 #include <ioapic.h>
 #include <vmtrr.h>
 #include <timer.h>