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-rw-r--r--hw/arm/mps2-tz.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/arm/mps2-tz.c b/hw/arm/mps2-tz.c
index 08dd2cbaa4..cc9d70ece5 100644
--- a/hw/arm/mps2-tz.c
+++ b/hw/arm/mps2-tz.c
@@ -92,8 +92,10 @@ typedef struct RAMInfo {
* Flag values:
* IS_ALIAS: this RAM area is an alias to the upstream end of the
* MPC specified by its .mpc value
+ * IS_ROM: this RAM area is read-only
*/
#define IS_ALIAS 1
+#define IS_ROM 2
struct MPS2TZMachineClass {
MachineClass parent;
@@ -209,6 +211,7 @@ static MemoryRegion *mr_for_raminfo(MPS2TZMachineState *mms,
if (raminfo->mrindex < 0) {
/* Means this RAMInfo is for QEMU's "system memory" */
MachineState *machine = MACHINE(mms);
+ assert(!(raminfo->flags & IS_ROM));
return machine->ram;
}
@@ -217,6 +220,9 @@ static MemoryRegion *mr_for_raminfo(MPS2TZMachineState *mms,
memory_region_init_ram(ram, NULL, raminfo->name,
raminfo->size, &error_fatal);
+ if (raminfo->flags & IS_ROM) {
+ memory_region_set_readonly(ram, true);
+ }
return ram;
}