1 files changed, 54 insertions, 0 deletions
diff --git a/roms/edk2/OvmfPkg/Include/IndustryStandard/I440FxPiix4.h b/roms/edk2/OvmfPkg/Include/IndustryStandard/I440FxPiix4.h
new file mode 100644
index 000000000..3973ff0a9
--- /dev/null
+++ b/roms/edk2/OvmfPkg/Include/IndustryStandard/I440FxPiix4.h
@@ -0,0 +1,54 @@
+/** @file
+  Various register numbers and value bits based on the following publications:
+  - Intel(R) datasheet 290549-001
+  - Intel(R) datasheet 290562-001
+  - Intel(R) datasheet 297654-006
+  - Intel(R) datasheet 297738-017
+
+  Copyright (C) 2015, Red Hat, Inc.
+  Copyright (c) 2014, Gabriel L. Somlo <somlo@cmu.edu>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef __I440FX_PIIX4_H__
+#define __I440FX_PIIX4_H__
+
+#include <Library/PciLib.h>
+
+//
+// Host Bridge Device ID (DID) value for I440FX
+//
+#define INTEL_82441_DEVICE_ID 0x1237
+
+//
+// B/D/F/Type: 0/0/0/PCI
+//
+#define PMC_REGISTER_PIIX4(Offset) PCI_LIB_ADDRESS (0, 0, 0, (Offset))
+
+#define PIIX4_PAM0              0x59
+#define PIIX4_PAM1              0x5A
+#define PIIX4_PAM2              0x5B
+#define PIIX4_PAM3              0x5C
+#define PIIX4_PAM4              0x5D
+#define PIIX4_PAM5              0x5E
+#define PIIX4_PAM6              0x5F
+
+//
+// B/D/F/Type: 0/1/3/PCI
+//
+#define POWER_MGMT_REGISTER_PIIX4(Offset) PCI_LIB_ADDRESS (0, 1, 3, (Offset))
+
+#define PIIX4_PMBA             0x40
+#define PIIX4_PMBA_MASK          (BIT15 | BIT14 | BIT13 | BIT12 | BIT11 | \
+                                  BIT10 | BIT9  | BIT8  | BIT7  | BIT6)
+
+#define PIIX4_PMREGMISC        0x80
+#define PIIX4_PMREGMISC_PMIOSE   BIT0
+
+//
+// IO ports
+//
+#define PIIX4_CPU_HOTPLUG_BASE 0xAF00
+
+#endif