Main changes: - COW optimization for safecopy. - safemap, a grant-based interface for sharing memory regions between processes. - Integration with safemap and complete rework of DS, supporting new data types natively (labels, memory ranges, memory mapped ranges). - For further information: http://wiki.minix3.org/en/SummerOfCode2009/MemoryGrants Additional changes not included in the original Wu's branch: - Fixed unhandled case in VM when using COW optimization for safecopy in case of a block that has already been shared as SMAP. - Better interface and naming scheme for sys_saferevmap and ds_retrieve_map calls. - Better input checking in syslib: check for page alignment when creating memory mapping grants. - DS notifies subscribers when an entry is deleted. - Documented the behavior of indirect grants in case of memory mapping. - Test suite in /usr/src/test/safeperf|safecopy|safemap|ds/* reworked and extended. - Minor fixes and general cleanup. - TO-DO: Grant ids should be generated and managed the way endpoints are to make sure grant slots are never misreused.
176 lines
7.7 KiB
C
176 lines
7.7 KiB
C
/* Function prototypes. */
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#ifndef PROTO_H
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#define PROTO_H
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#include <minix/safecopies.h>
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#include <archtypes.h>
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#include <a.out.h>
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/* Struct declarations. */
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struct proc;
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struct timer;
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/* clock.c */
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_PROTOTYPE( void clock_task, (void) );
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_PROTOTYPE( clock_t get_uptime, (void) );
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_PROTOTYPE( void set_timer, (struct timer *tp, clock_t t, tmr_func_t f) );
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_PROTOTYPE( void reset_timer, (struct timer *tp) );
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_PROTOTYPE( void ser_dump_proc, (void) );
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/* main.c */
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_PROTOTYPE( void main, (void) );
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_PROTOTYPE( void prepare_shutdown, (int how) );
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_PROTOTYPE( void minix_shutdown, (struct timer *tp) );
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/* utility.c */
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_PROTOTYPE( int kprintf, (const char *fmt, ...) );
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_PROTOTYPE( void minix_panic, (char *s, int n) );
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/* proc.c */
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_PROTOTYPE( int sys_call, (int call_nr, int src_dst,
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message *m_ptr, long bit_map) );
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_PROTOTYPE( int lock_notify, (int src, int dst) );
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_PROTOTYPE( int mini_notify, (struct proc *src, endpoint_t dst) );
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_PROTOTYPE( int lock_send, (int dst, message *m_ptr) );
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_PROTOTYPE( void enqueue, (struct proc *rp) );
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_PROTOTYPE( void dequeue, (struct proc *rp) );
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_PROTOTYPE( void balance_queues, (struct timer *tp) );
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_PROTOTYPE( struct proc * schedcheck, (void) );
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_PROTOTYPE( struct proc * arch_finish_schedcheck, (void) );
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_PROTOTYPE( struct proc *endpoint_lookup, (endpoint_t ep) );
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#if DEBUG_ENABLE_IPC_WARNINGS
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_PROTOTYPE( int isokendpt_f, (char *file, int line, endpoint_t e, int *p, int f));
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#define isokendpt_d(e, p, f) isokendpt_f(__FILE__, __LINE__, (e), (p), (f))
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#else
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_PROTOTYPE( int isokendpt_f, (endpoint_t e, int *p, int f) );
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#define isokendpt_d(e, p, f) isokendpt_f((e), (p), (f))
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#endif
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/* start.c */
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_PROTOTYPE( void cstart, (U16_t cs, U16_t ds, U16_t mds,
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U16_t parmoff, U16_t parmsize) );
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/* system.c */
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_PROTOTYPE( int get_priv, (register struct proc *rc, int proc_type) );
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_PROTOTYPE( void set_sendto_bit, (struct proc *rc, int id) );
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_PROTOTYPE( void unset_sendto_bit, (struct proc *rc, int id) );
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_PROTOTYPE( void send_sig, (int proc_nr, int sig_nr) );
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_PROTOTYPE( void cause_sig, (int proc_nr, int sig_nr) );
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_PROTOTYPE( void sig_delay_done, (struct proc *rp) );
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_PROTOTYPE( void sys_task, (void) );
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#define numap_local(proc_nr, vir_addr, bytes) \
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umap_local(proc_addr(proc_nr), D, (vir_addr), (bytes))
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_PROTOTYPE( phys_bytes umap_grant, (struct proc *, cp_grant_id_t,
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vir_bytes));
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_PROTOTYPE( void clear_endpoint, (struct proc *rc) );
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_PROTOTYPE( phys_bytes umap_bios, (vir_bytes vir_addr, vir_bytes bytes));
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/* system/do_newmap.c */
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_PROTOTYPE( int newmap, (struct proc *rp, struct mem_map *map_ptr) );
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/* system/do_vtimer.c */
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_PROTOTYPE( void vtimer_check, (struct proc *rp) );
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/* interrupt.c */
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_PROTOTYPE( void put_irq_handler, (irq_hook_t *hook, int irq,
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irq_handler_t handler) );
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_PROTOTYPE( void rm_irq_handler, (irq_hook_t *hook) );
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_PROTOTYPE( void enable_irq, (irq_hook_t *hook) );
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_PROTOTYPE( int disable_irq, (irq_hook_t *hook) );
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_PROTOTYPE( void cons_setc, (int pos, int c) );
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_PROTOTYPE( void cons_seth, (int pos, int n) );
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/* debug.c */
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#if DEBUG_SCHED_CHECK
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#define CHECK_RUNQUEUES check_runqueues_f(__FILE__, __LINE__)
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_PROTOTYPE( void check_runqueues_f, (char *file, int line) );
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#endif
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_PROTOTYPE( char *rtsflagstr, (int flags) );
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_PROTOTYPE( char *miscflagstr, (int flags) );
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/* system/do_safemap.c */
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_PROTOTYPE( int map_invoke_vm, (int req_type,
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endpoint_t end_d, int seg_d, vir_bytes off_d,
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endpoint_t end_s, int seg_s, vir_bytes off_s,
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size_t size, int flag));
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/* system/do_safecopy.c */
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_PROTOTYPE( int verify_grant, (endpoint_t, endpoint_t, cp_grant_id_t, vir_bytes,
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int, vir_bytes, vir_bytes *, endpoint_t *));
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/* system/do_sysctl.c */
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_PROTOTYPE( int do_sysctl, (message *m));
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#if SPROFILE
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/* profile.c */
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_PROTOTYPE( void init_profile_clock, (u32_t) );
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_PROTOTYPE( void stop_profile_clock, (void) );
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#endif
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/* functions defined in architecture-dependent files. */
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_PROTOTYPE( void prot_init, (void) );
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_PROTOTYPE( phys_bytes phys_copy, (phys_bytes source, phys_bytes dest,
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phys_bytes count) );
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_PROTOTYPE( void phys_copy_fault, (void));
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_PROTOTYPE( void phys_copy_fault_in_kernel, (void));
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#define virtual_copy(src, dst, bytes) virtual_copy_f(src, dst, bytes, 0)
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#define virtual_copy_vmcheck(src, dst, bytes) virtual_copy_f(src, dst, bytes, 1)
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_PROTOTYPE( int virtual_copy_f, (struct vir_addr *src, struct vir_addr *dst,
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vir_bytes bytes, int vmcheck) );
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_PROTOTYPE( int data_copy, (endpoint_t from, vir_bytes from_addr,
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endpoint_t to, vir_bytes to_addr, size_t bytes));
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_PROTOTYPE( int data_copy_vmcheck, (endpoint_t from, vir_bytes from_addr,
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endpoint_t to, vir_bytes to_addr, size_t bytes));
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#define data_copy_to(d, p, v, n) data_copy(SYSTEM, (d), (p), (v), (n));
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#define data_copy_from(d, p, v, n) data_copy((p), (v), SYSTEM, (d), (n));
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_PROTOTYPE( void alloc_segments, (struct proc *rp) );
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_PROTOTYPE( void vm_init, (struct proc *first) );
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_PROTOTYPE( int vm_copy, (vir_bytes src, struct proc *srcproc,
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vir_bytes dst, struct proc *dstproc, phys_bytes bytes));
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_PROTOTYPE( phys_bytes umap_local, (register struct proc *rp, int seg,
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vir_bytes vir_addr, vir_bytes bytes));
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_PROTOTYPE( void cp_mess, (int src,phys_clicks src_clicks,
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vir_bytes src_offset, phys_clicks dst_clicks, vir_bytes dst_offset));
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_PROTOTYPE( phys_bytes umap_remote, (struct proc* rp, int seg,
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vir_bytes vir_addr, vir_bytes bytes) );
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_PROTOTYPE( phys_bytes umap_virtual, (struct proc* rp, int seg,
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vir_bytes vir_addr, vir_bytes bytes) );
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_PROTOTYPE( phys_bytes seg2phys, (U16_t) );
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_PROTOTYPE( int vm_phys_memset, (phys_bytes source, u8_t pattern,
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phys_bytes count) );
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_PROTOTYPE( vir_bytes alloc_remote_segment, (u32_t *, segframe_t *,
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int, phys_bytes, vir_bytes, int));
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_PROTOTYPE( int intr_init, (int, int) );
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_PROTOTYPE( int intr_disabled, (void) );
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_PROTOTYPE( void halt_cpu, (void) );
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_PROTOTYPE( void arch_init, (void) );
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_PROTOTYPE( void ser_putc, (char) );
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_PROTOTYPE( void arch_shutdown, (int) );
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_PROTOTYPE( void arch_monitor, (void) );
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_PROTOTYPE( void arch_get_aout_headers, (int i, struct exec *h) );
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_PROTOTYPE( void restart, (void) );
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_PROTOTYPE( void read_tsc, (unsigned long *high, unsigned long *low) );
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_PROTOTYPE( int arch_init_profile_clock, (u32_t freq) );
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_PROTOTYPE( void arch_stop_profile_clock, (void) );
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_PROTOTYPE( void arch_ack_profile_clock, (void) );
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_PROTOTYPE( void do_ser_debug, (void) );
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_PROTOTYPE( int arch_get_params, (char *parm, int max));
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_PROTOTYPE( int arch_set_params, (char *parm, int max));
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_PROTOTYPE( int arch_pre_exec, (struct proc *pr, u32_t, u32_t));
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_PROTOTYPE( int arch_umap, (struct proc *pr, vir_bytes, vir_bytes,
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int, phys_bytes *));
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_PROTOTYPE( int arch_do_vmctl, (message *m_ptr, struct proc *p));
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_PROTOTYPE( int vm_contiguous, (struct proc *targetproc, u32_t vir_buf, size_t count));
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_PROTOTYPE( void proc_stacktrace, (struct proc *proc) );
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_PROTOTYPE( int vm_lookup, (struct proc *proc, vir_bytes virtual, vir_bytes *result, u32_t *ptent));
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_PROTOTYPE( int vm_suspend, (struct proc *caller, struct proc *target,
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phys_bytes lin, phys_bytes size, int wrflag, int type));
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_PROTOTYPE( int delivermsg, (struct proc *target));
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_PROTOTYPE( void arch_do_syscall, (struct proc *proc) );
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_PROTOTYPE( int arch_phys_map, (int index, phys_bytes *addr,
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phys_bytes *len, int *flags));
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_PROTOTYPE( int arch_phys_map_reply, (int index, vir_bytes addr));
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_PROTOTYPE( int arch_enable_paging, (void));
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#endif /* PROTO_H */
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