File imx7-ccm-add-digprog-mmio-write-method.patch of Package qemu.21548

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File imx7-ccm-add-digprog-mmio-write-method.patch of Package qemu.21548

From: Prasad J Pandit <pjp@fedoraproject.org>
Date: Tue, 11 Aug 2020 17:11:32 +0530
Subject: imx7-ccm: add digprog mmio write method

Git-commit: 735754aaa15a6ed46db51fd731e88331c446ea54
References: bsc#1173612, 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>
Message-Id: <20200811114133.672647-9-ppandit@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 hw/misc/imx7_ccm.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/hw/misc/imx7_ccm.c b/hw/misc/imx7_ccm.c
index 02fc1ae8d09e30e8caed6aebdca1..075159e497b1a76b14a9ed041ba0 100644
--- a/hw/misc/imx7_ccm.c
+++ b/hw/misc/imx7_ccm.c
@@ -131,8 +131,16 @@ 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_GUEST_ERROR,
+                  "Guest write to read-only ANALOG_DIGPROG register\n");
+}
+
 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,

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File imx7-ccm-add-digprog-mmio-write-method.patch of Package qemu.21548

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