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-rw-r--r--hw/arm/xlnx-ep108.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/hw/arm/xlnx-ep108.c b/hw/arm/xlnx-ep108.c
index 81704bb8f1..46f145b97d 100644
--- a/hw/arm/xlnx-ep108.c
+++ b/hw/arm/xlnx-ep108.c
@@ -18,11 +18,16 @@
#include "hw/arm/xlnx-zynqmp.h"
#include "hw/boards.h"
#include "qemu/error-report.h"
+#include "exec/address-spaces.h"
typedef struct XlnxEP108 {
XlnxZynqMPState soc;
+ MemoryRegion ddr_ram;
} XlnxEP108;
+/* Max 2GB RAM */
+#define EP108_MAX_RAM_SIZE 0x80000000ull
+
static void xlnx_ep108_init(MachineState *machine)
{
XlnxEP108 *s = g_new0(XlnxEP108, 1);
@@ -37,6 +42,21 @@ static void xlnx_ep108_init(MachineState *machine)
error_report("%s", error_get_pretty(err));
exit(1);
}
+
+ if (machine->ram_size > EP108_MAX_RAM_SIZE) {
+ error_report("WARNING: RAM size " RAM_ADDR_FMT " above max supported, "
+ "reduced to %llx", machine->ram_size, EP108_MAX_RAM_SIZE);
+ machine->ram_size = EP108_MAX_RAM_SIZE;
+ }
+
+ if (machine->ram_size <= 0x08000000) {
+ qemu_log("WARNING: RAM size " RAM_ADDR_FMT " is small for EP108",
+ machine->ram_size);
+ }
+
+ memory_region_allocate_system_memory(&s->ddr_ram, NULL, "ddr-ram",
+ machine->ram_size);
+ memory_region_add_subregion(get_system_memory(), 0, &s->ddr_ram);
}
static QEMUMachine xlnx_ep108_machine = {