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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
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