[PATCH v2 2/4] OvmfPkg/IndustryStandard: add QemuTpm.h header

[marcandre.lureau@redhat.com]

From: Marc-André Lureau <marcandre.lureau@redhat.com>

Add some common macros and type definitions corresponding to the QEMU
TPM interface.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 OvmfPkg/Include/IndustryStandard/QemuTpm.h | 69 ++++++++++++++++++++
 1 file changed, 69 insertions(+)

diff --git a/OvmfPkg/Include/IndustryStandard/QemuTpm.h b/OvmfPkg/Include/IndustryStandard/QemuTpm.h
new file mode 100644
index 000000000000..19e96238f553
--- /dev/null
+++ b/OvmfPkg/Include/IndustryStandard/QemuTpm.h
@@ -0,0 +1,69 @@
+/** @file
+  Macro and type definitions corresponding to the QEMU TPM interface.
+
+  Refer to "docs/specs/tpm.txt" in the QEMU source directory.
+
+  Copyright (C) 2018, Red Hat, Inc.
+  Copyright (c) 2018, IBM Corporation. All rights reserved.<BR>
+
+  This program and the accompanying materials are licensed and made available
+  under the terms and conditions of the BSD License which accompanies this
+  distribution. The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
+  WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+**/
+
+#ifndef __QEMU_TPM_H__
+#define __QEMU_TPM_H__
+
+#include <Base.h>
+
+//
+// whether function is blocked by BIOS settings; bits 0, 1, 2
+//
+#define QEMU_TPM_PPI_FUNC_NOT_IMPLEMENTED     (0 << 0)
+#define QEMU_TPM_PPI_FUNC_BIOS_ONLY           (1 << 0)
+#define QEMU_TPM_PPI_FUNC_BLOCKED             (2 << 0)
+#define QEMU_TPM_PPI_FUNC_ALLOWED_USR_REQ     (3 << 0)
+#define QEMU_TPM_PPI_FUNC_ALLOWED_USR_NOT_REQ (4 << 0)
+#define QEMU_TPM_PPI_FUNC_MASK                (7 << 0)
+
+//
+// The following structure is shared between firmware and ACPI.
+//
+#pragma pack (1)
+typedef struct {
+  UINT8 Func[256];           // func
+  UINT8 In;                  // ppin
+  UINT32 Ip;                 // ppip
+  UINT32 Response;           // pprp
+  UINT32 Request;            // pprq
+  UINT32 RequestParameter;   // pprm
+  UINT32 LastRequest;        // lppr
+  UINT32 FRet;               // fret
+  UINT8 Res1[0x40];          // res1
+  UINT8 NextStep;            // next_step
+} QEMU_TPM_PPI;
+#pragma pack ()
+
+//
+// The following structure is for the fw_cfg etc/tpm/config file.
+//
+#pragma pack (1)
+typedef struct {
+  UINT32 PpiAddress;
+  UINT8 TpmVersion;
+  UINT8 PpiVersion;
+} QEMU_FWCFG_TPM_CONFIG;
+#pragma pack ()
+
+#define QEMU_TPM_VERSION_UNSPEC    0
+#define QEMU_TPM_VERSION_1_2       1
+#define QEMU_TPM_VERSION_2         2
+
+#define QEMU_TPM_PPI_VERSION_NONE  0
+#define QEMU_TPM_PPI_VERSION_1_30  1
+
+#endif
-- 
2.17.0.253.g3dd125b46d