a68570b5d9
1. Add computing offloading code 2. Add script.md 3. Add virsh_demo.xml Change-Id: Id9ef883e2f0eb727eb5448b9d1c47767f46b1021 Signed-off-by: Yikun Jiang <yikunkero@gmail.com>
110 lines
4.0 KiB
C
110 lines
4.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2023. Huawei Technologies Co., Ltd. All rights reserved.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __QTFS_SYMBOL_WRAPPER_H__
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#define __QTFS_SYMBOL_WRAPPER_H__
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#include <linux/version.h>
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typedef unsigned long (*kallsyms_lookup_name_t)(const char *name);
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extern kallsyms_lookup_name_t qtfs_kallsyms_lookup_name;
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struct qtfs_kallsyms {
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unsigned long **sys_call_table;
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char *(*d_absolute_path)(const struct path *, char *, int);
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#if (LINUX_VERSION_CODE <= KERNEL_VERSION(5, 10, 0))
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int (*__close_fd)(struct files_struct *, int);
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#endif
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struct task_struct *(*find_get_task_by_vpid)(pid_t nr);
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};
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extern struct qtfs_kallsyms qtfs_kern_syms;
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int qtfs_kallsyms_hack_init(void);
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#ifdef QTFS_CLIENT
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enum {
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SYMBOL_SYSCALL_MOUNT,
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SYMBOL_SYSCALL_UMOUNT,
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SYMBOL_SYSCALL_EPOLL_CTL,
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SYMBOL_SYSCALL_CONNECT,
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SYMBOL_MAX_NUM,
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};
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#endif
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#ifdef QTFS_SERVER
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enum {
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SYMBOL_SYSCALL_CONNECT,
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SYMBOL_MAX_NUM,
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};
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#endif
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extern unsigned long *symbols_origin[SYMBOL_MAX_NUM];
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#ifdef __x86_64__
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// make the page writeable
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static inline int make_rw(unsigned long address)
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{
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unsigned int level;
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pte_t *pte = lookup_address(address, &level);
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pte->pte |= _PAGE_RW;
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return 0;
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}
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// make the page write protected
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static inline int make_ro(unsigned long address)
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{
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unsigned int level;
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pte_t *pte = lookup_address(address, &level);
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pte->pte &= ~_PAGE_RW;
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return 0;
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}
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#endif
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#ifdef __aarch64__
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extern void (*update_mapping_prot)(phys_addr_t phys, unsigned long virt, phys_addr_t size, pgprot_t prot);
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extern unsigned long start_rodata, end_rodata;
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#define section_size (end_rodata - start_rodata)
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#endif
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int qtfs_syscall_replace_start(void);
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void qtfs_syscall_replace_stop(void);
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noinline long qtfs_syscall_umount(char __user *name, int flags);
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noinline long qtfs_syscall_mount(char __user *dev_name, char __user *dir_name,
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char __user *type, unsigned long flags, void __user *data);
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noinline long qtfs_syscall_epoll_ctl(int epfd, int op, int fd, struct epoll_event __user *event);
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noinline long qtfs_syscall_unlink(const char __user *pathname);
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noinline int qtfs_syscall_readlinkat(int dfd, const char __user *path,
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char __user *buf, int bufsiz);
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noinline int qtfs_syscall_renameat2(int olddfd, const char __user *oldname,
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int newdfd, const char __user *newname, unsigned int flags);
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noinline long qtfs_syscall_mkdirat(int dfd, const char __user *pathname, umode_t mode);
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noinline long qtfs_syscall_rmdir(const char __user *pathname);
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noinline int qtfs_syscall_statfs(const char __user *path, struct statfs __user *buf);
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noinline int qtfs_syscall_openat(int dfd, const char __user *filename, int flags,
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umode_t mode);
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noinline int qtfs_syscall_epoll_wait(int epfd, struct epoll_event __user *events,
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int maxevents, int timout);
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noinline int qtfs_syscall_linkat(int olddfd, const char __user *oldname,
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int newdfd, const char __user *newname, int flags);
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noinline long qtfs_syscall_mknodat(int dfd, const char __user *filename, umode_t mode,
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unsigned int dev);
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noinline off_t qtfs_syscall_lseek(unsigned int fd, off_t offset, unsigned int whence);
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long qtfs_syscall_write(unsigned int fd, const char __user *buf, size_t count);
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long qtfs_syscall_read(unsigned int fd, char __user *buf, size_t count);
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long qtfs_syscall_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
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long qtfs_syscall_kill(pid_t pid, int sig);
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long qtfs_syscall_sched_getaffinity(pid_t pid, unsigned int len, unsigned long __user *user_mask_ptr);
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long qtfs_syscall_sched_setaffinity(pid_t pid, unsigned int len, unsigned long __user *user_mask_ptr);
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long qtfs_syscall_connect(int fd, struct sockaddr __user *uservaddr, int addrlen);
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#endif
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