[RFC PATCH 17/23] i386/tdx: Add definitions for TDVF metadata

[Isaku Yamahata]

Add constants and structs for the TD Virtual Firmware metadata, which
describes how the TDVF must be built to ensure correct functionality and
measurement.

Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Co-developed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
 include/hw/i386/tdvf.h | 55 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 include/hw/i386/tdvf.h

diff --git a/include/hw/i386/tdvf.h b/include/hw/i386/tdvf.h
new file mode 100644
index 0000000000..5c78e2affb
--- /dev/null
+++ b/include/hw/i386/tdvf.h
@@ -0,0 +1,55 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+
+ * Copyright (c) 2020 Intel Corporation
+ * Author: Isaku Yamahata <isaku.yamahata at gmail.com>
+ *                        <isaku.yamahata at intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef HW_I386_TDVF_H
+#define HW_I386_TDVF_H
+
+#include "qemu/osdep.h"
+
+#define TDVF_METDATA_OFFSET_FROM_END    0x20
+
+#define TDVF_SECTION_TYPE_BFV               0
+#define TDVF_SECTION_TYPE_CFV               1
+#define TDVF_SECTION_TYPE_TD_HOB            2
+#define TDVF_SECTION_TYPE_TEMP_MEM          3
+
+#define TDVF_SECTION_ATTRIBUTES_EXTENDMR    (1U << 0)
+
+typedef struct {
+    uint32_t DataOffset;
+    uint32_t RawDataSize;
+    uint64_t MemoryAddress;
+    uint64_t MemoryDataSize;
+    uint32_t Type;
+    uint32_t Attributes;
+} TdvfSectionEntry;
+
+#define TDVF_SIGNATURE_LE32     0x46564454 /* TDVF as little endian */
+
+typedef struct {
+    uint8_t Signature[4];
+    uint32_t Length;
+    uint32_t Version;
+    uint32_t NumberOfSectionEntries;
+    TdvfSectionEntry SectionEntries[];
+} TdvfMetadata;
+
+#endif /* HW_I386_TDVF_H */
-- 
2.17.1