From 5979338f8fb4562f7af32c58b7e7542d7396954e Mon Sep 17 00:00:00 2001
From: Prasad J Pandit <pjp@fedoraproject.org>
Date: Thu, 25 Mar 2021 17:29:28 +0800
Subject: [PATCH] imx7-ccm: add digprog mmio write method

fix CVE-2020-15469

Add digprog mmio write method to avoid assert failure during
initialisation.

Reviewed-by: Li Qiang <liq3ea@gmail.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>

Signed-off-by: Jiajie Li <lijiajie11@huawei.com>
---
 hw/misc/imx7_ccm.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/hw/misc/imx7_ccm.c b/hw/misc/imx7_ccm.c
index d9bdcf1027..831311a7c8 100644
--- a/hw/misc/imx7_ccm.c
+++ b/hw/misc/imx7_ccm.c
@@ -130,8 +130,15 @@ static const struct MemoryRegionOps imx7_set_clr_tog_ops = {
     },
 };
 
+static void imx7_digprog_write(void *opaque, hwaddr addr,
+                                        uint64_t data, unsigned size)
+{
+    qemu_log_mask(LOG_UNIMP, "%s not implemented\n", __func__);
+}
+
 static const struct MemoryRegionOps imx7_digprog_ops = {
     .read = imx7_set_clr_tog_read,
+    .write = imx7_digprog_write,
     .endianness = DEVICE_NATIVE_ENDIAN,
     .impl = {
         .min_access_size = 4,
-- 
2.27.0