From 1eb3d01956db89c072a51cad28c49a700b4cc35d Mon Sep 17 00:00:00 2001
From: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
Date: Fri, 25 Nov 2022 10:54:11 +0900
Subject: [PATCH] arch: arm64: Add qemu_virtio.c

Summary:
- This commit adds qemu_virtio.c

Impact:
- None

Testing:
- Tested with qemu-armv8a:netnsh (will be added later)

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
---
 arch/arm64/src/qemu/Make.defs     |  4 ++++
 arch/arm64/src/qemu/qemu_virtio.c | 40 +++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 arch/arm64/src/qemu/qemu_virtio.c

diff --git a/arch/arm64/src/qemu/Make.defs b/arch/arm64/src/qemu/Make.defs
index 2bb7b018c2..423e6e63c9 100644
--- a/arch/arm64/src/qemu/Make.defs
+++ b/arch/arm64/src/qemu/Make.defs
@@ -24,3 +24,7 @@ include common/Make.defs
 CHIP_CSRCS  = qemu_boot.c qemu_serial.c
 
 CHIP_ASRCS  = qemu_lowputc.S
+
+ifeq ($(CONFIG_DRIVERS_VIRTIO_NET),y)
+CHIP_CSRCS += qemu_virtio.c
+endif
diff --git a/arch/arm64/src/qemu/qemu_virtio.c b/arch/arm64/src/qemu/qemu_virtio.c
new file mode 100644
index 0000000000..5d476d2eed
--- /dev/null
+++ b/arch/arm64/src/qemu/qemu_virtio.c
@@ -0,0 +1,40 @@
+/****************************************************************************
+ * arch/arm64/src/qemu/qemu_virtio.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <syslog.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/virtio/virtio-mmio.h>
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+void arm64_netinitialize(void)
+{
+  virtio_mmio_init();
+}