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NJU-ProjectN/nemu ics2023 initialized

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NJU-ProjectN/nemu eb63cf3568dbf4e0c3c6ef462e6ec685550fabbc Merge pull request #76 from rijuyuezhu/master
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xinyangli 2023-12-21 00:20:36 +08:00
parent 1efe03efb9
commit 2824efad33
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nemu/include/memory/paddr.h Normal file
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/***************************************************************************************
* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
*
* NEMU is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
*
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
*
* See the Mulan PSL v2 for more details.
***************************************************************************************/
#ifndef __MEMORY_PADDR_H__
#define __MEMORY_PADDR_H__
#include <common.h>
#define PMEM_LEFT ((paddr_t)CONFIG_MBASE)
#define PMEM_RIGHT ((paddr_t)CONFIG_MBASE + CONFIG_MSIZE - 1)
#define RESET_VECTOR (PMEM_LEFT + CONFIG_PC_RESET_OFFSET)
/* convert the guest physical address in the guest program to host virtual address in NEMU */
uint8_t* guest_to_host(paddr_t paddr);
/* convert the host virtual address in NEMU to guest physical address in the guest program */
paddr_t host_to_guest(uint8_t *haddr);
static inline bool in_pmem(paddr_t addr) {
return addr - CONFIG_MBASE < CONFIG_MSIZE;
}
word_t paddr_read(paddr_t addr, int len);
void paddr_write(paddr_t addr, int len, word_t data);
#endif