On 3/19/2022 1:19 AM, Isaku Yamahata wrote:
On Thu, Mar 17, 2022 at 09:58:55PM +0800,
Xiaoyao Li <xiaoyao.li@xxxxxxxxx> wrote:
diff --git a/hw/i386/tdvf.c b/hw/i386/tdvf.c
new file mode 100644
index 000000000000..02da1d2c12dd
--- /dev/null
+++ b/hw/i386/tdvf.c
@@ -0,0 +1,196 @@
+/*
+ * 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/>.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/i386/pc.h"
+#include "hw/i386/tdvf.h"
+#include "sysemu/kvm.h"
+
+#define TDX_METADATA_GUID "e47a6535-984a-4798-865e-4685a7bf8ec2"
+#define TDX_METADATA_VERSION 1
+#define TDVF_SIGNATURE_LE32 0x46564454 /* TDVF as little endian */
_LE32 doesn't make sense. qemu doesn't provide macro version for byteswap.
Let's convert at the usage point.
OK
+
+ /* Finally, verify the signature to determine if this is a TDVF image. */
+ if (metadata->Signature != TDVF_SIGNATURE_LE32) {
metadata->Signature = le32_to_cpu(metadata->Signature);
metadata->Signature != TDVF_SIGNATURE for consistency.
