68 lines
2.8 KiB
C
68 lines
2.8 KiB
C
/**
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* \file
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* \brief create child process library
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*/
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/*
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* Copyright (c) 2016, ETH Zurich.
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* All rights reserved.
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*
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* This file is distributed under the terms in the attached LICENSE file.
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* If you do not find this file, copies can be found by writing to:
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* ETH Zurich D-INFK, Universitaetsstrasse 6, CH-8092 Zurich. Attn: Systems Group.
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*/
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#ifndef _INIT_SPAWN_H_
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#define _INIT_SPAWN_H_
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#include "aos/slot_alloc.h"
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#include "aos/paging.h"
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struct spawninfo {
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// the next in the list of spawned domains
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struct spawninfo *next;
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// Information about the binary
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char * binary_name; // Name of the binary
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// TODO(M2): Add fields you need to store state
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// when spawning a new dispatcher,
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// e.g. references to the child's
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// capabilities or paging state
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//afeer: see script page 84/85
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struct cnoderef cspace_l1_cnode_info;
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struct capref cspace_l1_cnode_cap;
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struct cnoderef cspace_l2_cnode_taskcn; // < Contains information about the process itself.
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struct cnoderef cspace_l2_cnode_slot_alloc_0; // < Empty L2 Node that contains space for the child’s initial slot allocator. When the new process starts creating and retyping capa- bilities, they will be stored in here.
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struct cnoderef cspace_l2_cnode_slot_alloc_1; // < A second L2 Node for the slot allocator to use.
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struct cnoderef cspace_l2_cnode_slot_alloc_2; // < A third L2 Node for the slot allocator to use.
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struct cnoderef cspace_l2_cnode_base_pagecn; // < Each slot holds a BASE_PAGE_SIZEd RAM capability.
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struct cnoderef cspace_l2_cnode_pagecn; // < Contains capabilites to the pagetable
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// these capabilites are all stored in the taskcn cnode
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struct capref cspace_cap_selfep; // < Endpoint to itself. You can get this capability by retyping the dispatcher capability to ObjType_EndPointLMP.
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struct capref cspace_cap_dispatcher; // < Contains the dispatcher capability.The dispatcher is the equivalent of a “Process Control Block” in other operating systems. You can create one using dispatcher_create(...);
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struct capref cspace_cap_rootcn; // < Contains a capability for the root (L1) CNode.
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struct capref cspace_cap_dispframe; // < A capability to the dispatcher frame, used to communicate between a process and the CPU driver.
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struct capref cspace_cap_argspage; // < A page containing a list of command line arguments.
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struct capref vspace_cap_l0_pagetable;
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};
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// Start a child process using the multiboot command line. Fills in si.
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errval_t spawn_load_by_name(char *binary_name, struct spawninfo * si,
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domainid_t *pid);
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// Start a child with an explicit command line. Fills in si.
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errval_t spawn_load_argv(int argc, char *argv[], struct spawninfo *si,
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domainid_t *pid);
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#endif /* _INIT_SPAWN_H_ */
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