f0db9bb328
let boot processes run with segments - allow segment-only processes to fork() by copying them and giving them an identity page table
178 lines
7.5 KiB
C
178 lines
7.5 KiB
C
/* Function prototypes. */
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struct vmproc;
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struct stat;
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struct mem_map;
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struct memory;
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#include <minix/ipc.h>
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#include <minix/endpoint.h>
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#include <minix/safecopies.h>
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#include <timers.h>
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#include <stdio.h>
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#include <pagetable.h>
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#include "vmproc.h"
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#include "vm.h"
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/* alloc.c */
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_PROTOTYPE( phys_clicks alloc_mem_f, (phys_clicks clicks, u32_t flags) );
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_PROTOTYPE( int do_adddma, (message *msg) );
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_PROTOTYPE( int do_deldma, (message *msg) );
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_PROTOTYPE( int do_getdma, (message *msg) );
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_PROTOTYPE( int do_allocmem, (message *msg) );
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_PROTOTYPE( void release_dma, (struct vmproc *vmp) );
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_PROTOTYPE( void memstats, (int *nodes, int *pages, int *largest) );
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_PROTOTYPE( void printmemstats, (void) );
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_PROTOTYPE( void usedpages_reset, (void) );
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_PROTOTYPE( int usedpages_add_f, (phys_bytes phys, phys_bytes len,
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char *file, int line) );
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_PROTOTYPE( void free_mem_f, (phys_clicks base, phys_clicks clicks) );
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#define usedpages_add(a, l) usedpages_add_f(a, l, __FILE__, __LINE__)
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#define ALLOC_MEM(clicks, flags) alloc_mem_f(clicks, flags)
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#define FREE_MEM(base, clicks) free_mem_f(base, clicks)
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_PROTOTYPE( void mem_init, (struct memory *chunks) );
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/* utility.c */
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_PROTOTYPE( int get_mem_map, (int proc_nr, struct mem_map *mem_map) );
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_PROTOTYPE( void get_mem_chunks, (struct memory *mem_chunks));
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_PROTOTYPE( void reserve_proc_mem, (struct memory *mem_chunks,
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struct mem_map *map_ptr));
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_PROTOTYPE( int vm_isokendpt, (endpoint_t ep, int *proc) );
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_PROTOTYPE( int get_stack_ptr, (int proc_nr, vir_bytes *sp) );
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_PROTOTYPE( int do_ctl, (message *) );
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/* exit.c */
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_PROTOTYPE( void clear_proc, (struct vmproc *vmp) );
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_PROTOTYPE( int do_exit, (message *msg) );
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_PROTOTYPE( int do_willexit, (message *msg) );
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_PROTOTYPE( void free_proc, (struct vmproc *vmp) );
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/* fork.c */
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_PROTOTYPE( int do_fork, (message *msg) );
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/* exec.c */
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_PROTOTYPE( struct vmproc *find_share, (struct vmproc *vmp_ign, Ino_t ino,
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Dev_t dev, time_t ctime) );
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_PROTOTYPE( int do_exec_newmem, (message *msg) );
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_PROTOTYPE( int proc_new, (struct vmproc *vmp, phys_bytes start,
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phys_bytes text, phys_bytes data, phys_bytes stack, phys_bytes gap,
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phys_bytes text_here, phys_bytes data_here, vir_bytes stacktop));
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_PROTOTYPE( phys_bytes find_kernel_top, (void) );
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/* break.c */
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_PROTOTYPE( int do_brk, (message *msg) );
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_PROTOTYPE( int adjust, (struct vmproc *rmp,
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vir_clicks data_clicks, vir_bytes sp) );
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_PROTOTYPE( int real_brk, (struct vmproc *vmp, vir_bytes v));
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/* signal.c */
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_PROTOTYPE( int do_push_sig, (message *msg) );
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/* vfs.c */
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_PROTOTYPE( int do_vfs_reply, (message *msg) );
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_PROTOTYPE( int vfs_open, (struct vmproc *for_who, callback_t callback,
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cp_grant_id_t filename_gid, int filename_len, int flags, int mode));
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_PROTOTYPE( int vfs_close, (struct vmproc *for_who, callback_t callback,
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int fd));
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/* mmap.c */
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_PROTOTYPE(int do_mmap, (message *msg) );
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_PROTOTYPE(int do_munmap, (message *msg) );
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_PROTOTYPE(int do_map_phys, (message *msg) );
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_PROTOTYPE(int do_unmap_phys, (message *msg) );
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_PROTOTYPE(int do_remap, (message *m) );
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_PROTOTYPE(int do_get_phys, (message *m) );
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_PROTOTYPE(int do_shared_unmap, (message *m) );
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_PROTOTYPE(int do_get_refcount, (message *m) );
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/* pagefaults.c */
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_PROTOTYPE( void do_pagefaults, (void) );
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_PROTOTYPE( void do_memory, (void) );
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_PROTOTYPE( char *pf_errstr, (u32_t err));
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_PROTOTYPE( int handle_memory, (struct vmproc *vmp, vir_bytes mem,
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vir_bytes len, int wrflag));
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/* $(ARCH)/pagetable.c */
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_PROTOTYPE( void pt_init, (phys_bytes limit) );
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_PROTOTYPE( void pt_check, (struct vmproc *vmp) );
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_PROTOTYPE( int pt_new, (pt_t *pt) );
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_PROTOTYPE( int pt_identity, (pt_t *pt) );
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_PROTOTYPE( void pt_free, (pt_t *pt) );
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_PROTOTYPE( int pt_writemap, (pt_t *pt, vir_bytes v, phys_bytes physaddr,
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size_t bytes, u32_t flags, u32_t writemapflags));
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_PROTOTYPE( int pt_checkrange, (pt_t *pt, vir_bytes v, size_t bytes, int write));
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_PROTOTYPE( int pt_bind, (pt_t *pt, struct vmproc *who) );
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_PROTOTYPE( void *vm_allocpage, (phys_bytes *p, int cat));
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_PROTOTYPE( void pt_cycle, (void));
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_PROTOTYPE( int pt_mapkernel, (pt_t *pt));
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_PROTOTYPE( void vm_pagelock, (void *vir, int lockflag) );
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#if SANITYCHECKS
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_PROTOTYPE( void pt_sanitycheck, (pt_t *pt, char *file, int line) );
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#endif
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/* $(ARCH)/pagefaults.c */
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_PROTOTYPE( int arch_get_pagefault, (endpoint_t *who, vir_bytes *addr, u32_t *err));
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/* slaballoc.c */
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_PROTOTYPE(void *slaballoc,(int bytes));
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_PROTOTYPE(void slabfree,(void *mem, int bytes));
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_PROTOTYPE(void slabstats,(void));
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_PROTOTYPE(void slab_sanitycheck, (char *file, int line));
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#define SLABALLOC(var) (var = slaballoc(sizeof(*var)))
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#define SLABFREE(ptr) slabfree(ptr, sizeof(*(ptr)))
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#if SANITYCHECKS
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_PROTOTYPE(void slabunlock,(void *mem, int bytes));
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_PROTOTYPE(void slablock,(void *mem, int bytes));
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_PROTOTYPE(int slabsane_f,(char *file, int line, void *mem, int bytes));
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#endif
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/* region.c */
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_PROTOTYPE(struct vir_region * map_page_region,(struct vmproc *vmp, \
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vir_bytes min, vir_bytes max, vir_bytes length, vir_bytes what, \
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u32_t flags, int mapflags));
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_PROTOTYPE(struct vir_region * map_proc_kernel,(struct vmproc *dst));
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_PROTOTYPE(int map_region_extend,(struct vmproc *vmp, struct vir_region *vr, vir_bytes delta));
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_PROTOTYPE(int map_region_shrink,(struct vir_region *vr, vir_bytes delta));
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_PROTOTYPE(int map_unmap_region,(struct vmproc *vmp, struct vir_region *vr, vir_bytes len));
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_PROTOTYPE(int map_free_proc,(struct vmproc *vmp));
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_PROTOTYPE(int map_proc_copy,(struct vmproc *dst, struct vmproc *src));
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_PROTOTYPE(struct vir_region *map_lookup,(struct vmproc *vmp, vir_bytes addr));
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_PROTOTYPE(int map_pf,(struct vmproc *vmp,
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struct vir_region *region, vir_bytes offset, int write));
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_PROTOTYPE(int map_handle_memory,(struct vmproc *vmp,
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struct vir_region *region, vir_bytes offset, vir_bytes len, int write));
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_PROTOTYPE(void map_printmap, (struct vmproc *vmp));
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_PROTOTYPE(int map_writept, (struct vmproc *vmp));
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_PROTOTYPE(void printregionstats, (struct vmproc *vmp));
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_PROTOTYPE(struct vir_region * map_region_lookup_tag, (struct vmproc *vmp, u32_t tag));
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_PROTOTYPE(void map_region_set_tag, (struct vir_region *vr, u32_t tag));
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_PROTOTYPE(u32_t map_region_get_tag, (struct vir_region *vr));
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_PROTOTYPE(int map_remap, (struct vmproc *dvmp, vir_bytes da, size_t size,
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struct vir_region *region, vir_bytes *r));
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_PROTOTYPE(int map_get_phys, (struct vmproc *vmp, vir_bytes addr, phys_bytes *r));
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_PROTOTYPE(int map_get_ref, (struct vmproc *vmp, vir_bytes addr, u8_t *cnt));
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#if SANITYCHECKS
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_PROTOTYPE(void map_sanitycheck,(char *file, int line));
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#endif
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/* $(ARCH)/vm.c */
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_PROTOTYPE( vir_bytes, arch_map2vir(struct vmproc *vmp, vir_bytes addr));
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_PROTOTYPE( char *, arch_map2str(struct vmproc *vmp, vir_bytes addr));
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_PROTOTYPE( vir_bytes, arch_vir2map(struct vmproc *vmp, vir_bytes addr));
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_PROTOTYPE( vir_bytes, arch_vir2map_text(struct vmproc *vmp, vir_bytes addr));
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_PROTOTYPE( vir_bytes, arch_addrok(struct vmproc *vmp, vir_bytes addr));
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/* rs.c */
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_PROTOTYPE(int do_rs_set_priv, (message *m));
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/* queryexit.c */
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_PROTOTYPE(int do_query_exit, (message *m));
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_PROTOTYPE(int do_notify_sig, (message *m));
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_PROTOTYPE(void init_query_exit, (void));
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