hw/riscv: Adjust the memory allocation size of evalsoc to resolve the…

… issue of insufficient memory allocation in QEMU.

xip:32MB
ddr:64MB
ilm:8MB
dlm:8MB
sram:512MB

If -m size is configured, the size is used as the size of the DDR. Otherwise, the size of the DDR is determined by parsing the json script, and the default size is 64MB.

hw/riscv/nuclei_evalsoc.c

@@ -865,6 +865,13 @@ static void evalsoc_machine_init(MachineState *machine)
     memory_region_add_subregion(system_memory, s->sram.addr_base,
                                 &s->soc.sram);
 
+    // ddr
+    //if -m 128M or no -m,s->ddr.addr_size is first json,then EVALSOC_DDR_SIZE
+    if(machine->ram_size != 128 * MiB)
+    {
+        s->ddr.addr_size = machine->ram_size;
+    }
+
     memory_region_init_ram(&s->soc.ddr, NULL, "riscv.evalsoc.ram.ddr",
                            s->ddr.addr_size, &error_fatal);
     memory_region_add_subregion(system_memory, s->ddr.addr_base,

include/hw/riscv/nuclei_evalsoc.h

@@ -250,15 +250,15 @@ enum
 #define EVALSOC_QSPI2_SIZE          (0x1000)
 
 #define EVALSOC_XIP_BASE            (0x20000000)
-#define EVALSOC_XIP_SIZE            (0x20000000)
+#define EVALSOC_XIP_SIZE            (0x02000000)//32MB
 #define EVALSOC_DDR_BASE            (0x80000000)
-#define EVALSOC_DDR_SIZE            (0x80000000)
+#define EVALSOC_DDR_SIZE            (0x04000000)//64MB
 #define EVALSOC_ILM_BASE            (0x80000000)
-#define EVALSOC_ILM_SIZE            (0x80000000)
+#define EVALSOC_ILM_SIZE            (0x00800000)//8MB
 #define EVALSOC_DLM_BASE            (0x90000000)
-#define EVALSOC_DLM_SIZE            (0x70000000)
+#define EVALSOC_DLM_SIZE            (0x00800000)//8MB
 #define EVALSOC_SRAM_BASE           (0xA0000000)
-#define EVALSOC_SRAM_SIZE           (0x60000000)
+#define EVALSOC_SRAM_SIZE           (0x20000000)//512MB
 
 /* IREGION Offsets */
 #define IREGION_IINFO_OFS           (0x0)