diff --git a/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLib.c b/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLib.c
index 3dfa3126c3..ec2e677afd 100644
--- a/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLib.c
+++ b/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLib.c
@@ -1,5 +1,5 @@
 /** @file
-  Base Debug library instance for QEMU debug port.
+  Base Debug library instance for hypervisor debug port.
   It uses PrintLib to send debug messages to a fixed I/O port.
 
   Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
diff --git a/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLibDetect.c b/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLibDetect.c
index 2c659e7aea..8c466e64e0 100644
--- a/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLibDetect.c
+++ b/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLibDetect.c
@@ -1,5 +1,5 @@
 /** @file
-  Detection code for QEMU debug port.
+  Detection code for hypervisor debug port.
   Non-SEC instance, caches the result of detection.
 
   Copyright (c) 2017, Red Hat, Inc.<BR>
diff --git a/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLibDetect.h b/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLibDetect.h
index 71a7f33aaf..4677c85ac3 100644
--- a/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLibDetect.h
+++ b/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLibDetect.h
@@ -1,5 +1,5 @@
 /** @file
-  Base Debug library instance for QEMU debug port.
+  Base Debug library instance for hypervisor debug port.
   It uses PrintLib to send debug messages to a fixed I/O port.
 
   Copyright (c) 2017, Red Hat, Inc.<BR>
diff --git a/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLibDetectRom.c b/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLibDetectRom.c
index 03ba4a0a7b..8cbdbd94fc 100644
--- a/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLibDetectRom.c
+++ b/OvmfPkg/Library/PlatformDebugLibIoPort/DebugLibDetectRom.c
@@ -1,5 +1,5 @@
 /** @file
-  Detection code for QEMU debug port.
+  Detection code for hypervisor debug port.
   SEC instance, cannot cache the result of detection.
 
   Copyright (c) 2017, Red Hat, Inc.<BR>