50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/*
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* Copyright (c) 2020 Institute of Parallel And Distributed Systems (IPADS), Shanghai Jiao Tong University (SJTU)
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* OS-Lab-2020 (i.e., ChCore) is licensed under the Mulan PSL v1.
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* You can use this software according to the terms and conditions of the Mulan PSL v1.
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* You may obtain a copy of Mulan PSL v1 at:
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* http://license.coscl.org.cn/MulanPSL
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
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* PURPOSE.
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* See the Mulan PSL v1 for more details.
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*/
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#include <common/fs.h>
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#include <process/capability.h>
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#include <process/process.h>
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#include <process/thread.h>
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#include <common/uaccess.h>
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#include <common/kmalloc.h>
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#include <common/mm.h>
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#include <mm/vmspace.h>
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int sys_fs_load_cpio(u64 vaddr)
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{
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struct pmobject *cpio_pmo;
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struct vmspace *vmspace;
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int cpio_pmo_cap, ret;
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size_t len;
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cpio_pmo = obj_alloc(TYPE_PMO, sizeof(*cpio_pmo));
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if (!cpio_pmo) {
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return -ENOMEM;
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}
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len = ROUND_UP(binary_cpio_bin_size, PAGE_SIZE);
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pmo_init(cpio_pmo, PMO_DATA, len, 0);
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cpio_pmo_cap = cap_alloc(current_process, cpio_pmo, 0);
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if (cpio_pmo_cap < 0) {
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obj_free(cpio_pmo);
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return -ENOMEM;
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}
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vmspace = obj_get(current_process, VMSPACE_OBJ_ID, TYPE_VMSPACE);
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ret = vmspace_map_range(vmspace, vaddr, len, VMR_READ, cpio_pmo);
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memcpy((void *)phys_to_virt(cpio_pmo->start),
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&binary_cpio_bin_start, binary_cpio_bin_size);
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obj_put(vmspace);
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return ret;
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}
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