21 lines
482 B
C
21 lines
482 B
C
#ifndef _MEMLAYOUT_H
|
|
#define _MEMLAYOUT_H
|
|
#include "riscv.h"
|
|
|
|
// RISC-V machine places its physical memory above DRAM_BASE
|
|
#define DRAM_BASE 0x80000000
|
|
|
|
// the beginning virtual address of PKE kernel
|
|
#define KERN_BASE 0x80000000
|
|
|
|
// default stack size
|
|
#define STACK_SIZE 4096
|
|
|
|
// virtual address of stack top of user process
|
|
#define USER_STACK_TOP 0x7ffff000
|
|
|
|
// simple heap bottom, virtual address starts from 4MB
|
|
#define USER_FREE_ADDRESS_START 0x00000000 + PGSIZE * 1024
|
|
|
|
#endif
|