qemu-diff,riscv64: do not enter S-mode

src/isa/riscv64/init.c

@@ -16,7 +16,7 @@ void init_clint(void);
 void init_isa(void) {
   cpu.gpr[0]._64 = 0;
   cpu.pc = PC_START;
-  mstatus->val = 0x000c0100;
+  //mstatus->val = 0x000c0100;
 
   register_pmem(0x80000000u);
 

tools/qemu-diff/src/isa/riscv64/init.c

@@ -36,6 +36,7 @@ static uint32_t initcode[] = {
 
 
 void init_isa(void) {
+  return;
 
   // put initcode to QEMU to setup a PMP to permit access to all of memory in S mode
   bool ok = gdb_memcpy_to_qemu(0x80000000, initcode, sizeof(initcode));