/*===========================================================================*
* sef_cb_init_fresh *
*===========================================================================*/
PRIVATE int sef_cb_init_fresh(int type, sef_init_info_t *info)
{
/* Initialize the vm server. */
int s, i;
struct memory mem_chunks[NR_MEMS];
struct boot_image image[NR_BOOT_PROCS];
struct boot_image *ip;
struct rprocpub rprocpub[NR_BOOT_PROCS];
phys_bytes limit = 0;
int is_elf = 0;
#if SANITYCHECKS
incheck = nocheck = 0;
#endif
#if SANITYCHECKS
env_parse("vm_sanitychecklevel", "d", 0, &vm_sanitychecklevel, 0, SCL_MAX);
#endif
/* Get chunks of available memory. */
get_mem_chunks(mem_chunks);
/* Initialize VM's process table. Request a copy of the system
* image table that is defined at the kernel level to see which
* slots to fill in.
*/
if (OK != (s=sys_getimage(image)))
panic("couldn't get image table: %d", s);
/* Set table to 0. This invalidates all slots (clear VMF_INUSE). */
memset(vmproc, 0, sizeof(vmproc));
for(i = 0; i < ELEMENTS(vmproc); i++) {
vmproc[i].vm_slot = i;
}
/* Walk through boot-time system processes that are alive
* now and make valid slot entries for them.
*/
for (ip = &image[0]; ip < &image[NR_BOOT_PROCS]; ip++) {
phys_bytes proclimit;
struct vmproc *vmp;
if(ip->proc_nr >= _NR_PROCS) { panic("proc: %d", ip->proc_nr); }
if(ip->proc_nr < 0 && ip->proc_nr != SYSTEM) continue;
#define GETVMP(v, nr) \
if(nr >= 0) { \
vmp = &vmproc[ip->proc_nr]; \
} else if(nr == SYSTEM) { \
vmp = &vmproc[VMP_SYSTEM]; \
} else { \
panic("init: crazy proc_nr: %d", nr); \
}
/* Initialize normal process table slot or special SYSTEM
* table slot. Kernel memory is already reserved.
*/
GETVMP(vmp, ip->proc_nr);
/* reset fields as if exited */
clear_proc(vmp);
/* Get memory map for this process from the kernel. */
if ((s=get_mem_map(ip->proc_nr, vmp->vm_arch.vm_seg)) != OK)
panic("couldn't get process mem_map: %d", s);
/* Remove this memory from the free list. */
reserve_proc_mem(mem_chunks, vmp->vm_arch.vm_seg);
/* Set memory limit. */
proclimit = CLICK2ABS(vmp->vm_arch.vm_seg[S].mem_phys +
vmp->vm_arch.vm_seg[S].mem_len) - 1;
if(proclimit > limit)
limit = proclimit;
vmp->vm_flags = VMF_INUSE;
vmp->vm_endpoint = ip->endpoint;
vmp->vm_stacktop =
CLICK2ABS(vmp->vm_arch.vm_seg[S].mem_vir +
vmp->vm_arch.vm_seg[S].mem_len);
if (vmp->vm_arch.vm_seg[T].mem_len != 0)
vmp->vm_flags |= VMF_SEPARATE;
}
/* region management initialization. */
map_region_init();
/* Architecture-dependent initialization. */
pt_init(limit);
/* Initialize tables to all physical memory. */
mem_init(mem_chunks);
meminit_done = 1;
/* Architecture-dependent memory initialization. */
pt_init_mem();
/* Give these processes their own page table. */
for (ip = &image[0]; ip < &image[NR_BOOT_PROCS]; ip++) {
struct vmproc *vmp;
vir_bytes old_stacktop, old_stacklen;
if(ip->proc_nr < 0) continue;
GETVMP(vmp, ip->proc_nr);
if(!(ip->flags & PROC_FULLVM))
continue;
if(pt_new(&vmp->vm_pt) != OK)
panic("VM: no new pagetable");
#define BASICSTACK VM_PAGE_SIZE
old_stacktop = CLICK2ABS(vmp->vm_arch.vm_seg[S].mem_vir +
vmp->vm_arch.vm_seg[S].mem_len);
if(sys_vmctl(vmp->vm_endpoint, VMCTL_INCSP,
VM_STACKTOP - old_stacktop) != OK) {
panic("VM: vmctl for new stack failed");
}
old_stacklen =
vmp->vm_arch.vm_seg[S].mem_vir +
vmp->vm_arch.vm_seg[S].mem_len -
vmp->vm_arch.vm_seg[D].mem_len -
vmp->vm_arch.vm_seg[D].mem_vir;
free_mem(vmp->vm_arch.vm_seg[D].mem_phys +
vmp->vm_arch.vm_seg[D].mem_len,
old_stacklen);
#if defined(__ELF__)
is_elf = 1;
#endif
if(proc_new(vmp,
VM_PROCSTART,
CLICK2ABS(vmp->vm_arch.vm_seg[T].mem_vir),
CLICK2ABS(vmp->vm_arch.vm_seg[T].mem_len),
CLICK2ABS(vmp->vm_arch.vm_seg[D].mem_vir),
CLICK2ABS(vmp->vm_arch.vm_seg[D].mem_len),
BASICSTACK,
CLICK2ABS(vmp->vm_arch.vm_seg[S].mem_vir +
vmp->vm_arch.vm_seg[S].mem_len -
vmp->vm_arch.vm_seg[D].mem_len -
vmp->vm_arch.vm_seg[D].mem_vir) - BASICSTACK,
CLICK2ABS(vmp->vm_arch.vm_seg[T].mem_phys),
CLICK2ABS(vmp->vm_arch.vm_seg[D].mem_phys),
VM_STACKTOP, 0, is_elf) != OK) {
panic("failed proc_new for boot process");
}
}
/* Set up table of calls. */
#define CALLMAP(code, func) { int i; \
if((i=CALLNUMBER(code)) < 0) { panic(#code " invalid: %d", (code)); } \
if(i >= NR_VM_CALLS) { panic(#code " invalid: %d", (code)); } \
vm_calls[i].vmc_func = (func); \
vm_calls[i].vmc_name = #code; \
}
/* Set call table to 0. This invalidates all calls (clear
* vmc_func).
*/
memset(vm_calls, 0, sizeof(vm_calls));
/* Basic VM calls. */
CALLMAP(VM_MMAP, do_mmap);
CALLMAP(VM_MUNMAP, do_munmap);
CALLMAP(VM_MUNMAP_TEXT, do_munmap);
CALLMAP(VM_MAP_PHYS, do_map_phys);
CALLMAP(VM_UNMAP_PHYS, do_unmap_phys);
/* Calls from PM. */
CALLMAP(VM_EXIT, do_exit);
CALLMAP(VM_FORK, do_fork);
CALLMAP(VM_BRK, do_brk);
CALLMAP(VM_EXEC_NEWMEM, do_exec_newmem);
CALLMAP(VM_PUSH_SIG, do_push_sig);
CALLMAP(VM_WILLEXIT, do_willexit);
CALLMAP(VM_ADDDMA, do_adddma);
CALLMAP(VM_DELDMA, do_deldma);
CALLMAP(VM_GETDMA, do_getdma);
CALLMAP(VM_NOTIFY_SIG, do_notify_sig);
/* Calls from RS */
CALLMAP(VM_RS_SET_PRIV, do_rs_set_priv);
CALLMAP(VM_RS_UPDATE, do_rs_update);
CALLMAP(VM_RS_MEMCTL, do_rs_memctl);
/* Generic calls. */
CALLMAP(VM_REMAP, do_remap);
CALLMAP(VM_GETPHYS, do_get_phys);
CALLMAP(VM_SHM_UNMAP, do_shared_unmap);
CALLMAP(VM_GETREF, do_get_refcount);
CALLMAP(VM_INFO, do_info);
CALLMAP(VM_QUERY_EXIT, do_query_exit);
CALLMAP(VM_WATCH_EXIT, do_watch_exit);
CALLMAP(VM_FORGETBLOCKS, do_forgetblocks);
CALLMAP(VM_FORGETBLOCK, do_forgetblock);
CALLMAP(VM_YIELDBLOCKGETBLOCK, do_yieldblockgetblock);
/* Sanity checks */
if(find_kernel_top() >= VM_PROCSTART)
panic("kernel loaded too high");
/* Initialize the structures for queryexit */
init_query_exit();
/* Unmap our own low pages. */
unmap_ok = 1;
#if !defined(__ELF__)
_minix_unmapzero();
#endif
/* Map all the services in the boot image. */
if((s = sys_safecopyfrom(RS_PROC_NR, info->rproctab_gid, 0,
(vir_bytes) rprocpub, sizeof(rprocpub), S)) != OK) {
panic("sys_safecopyfrom failed: %d", s);
}
for(i=0;i < NR_BOOT_PROCS;i++) {
if(rprocpub[i].in_use) {
if((s = map_service(&rprocpub[i])) != OK) {
panic("unable to map service: %d", s);
}
}
}
return(OK);
}
void init_vm(void)
{
int s, i;
static struct memory mem_chunks[NR_MEMS];
static struct boot_image *ip;
extern void __minix_init(void);
multiboot_module_t *mod;
vir_bytes kern_dyn, kern_static;
#if SANITYCHECKS
incheck = nocheck = 0;
#endif
/* Retrieve various crucial boot parameters */
if(OK != (s=sys_getkinfo(&kernel_boot_info))) {
panic("couldn't get bootinfo: %d", s);
}
/* Turn file mmap on? */
env_parse("filemap", "d", 0, &enable_filemap, 0, 1);
/* Sanity check */
assert(kernel_boot_info.mmap_size > 0);
assert(kernel_boot_info.mods_with_kernel > 0);
/* Get chunks of available memory. */
get_mem_chunks(mem_chunks);
/* Set table to 0. This invalidates all slots (clear VMF_INUSE). */
memset(vmproc, 0, sizeof(vmproc));
for(i = 0; i < ELEMENTS(vmproc); i++) {
vmproc[i].vm_slot = i;
}
/* Initialize ACL data structures. */
acl_init();
/* region management initialization. */
map_region_init();
/* Initialize tables to all physical memory. */
mem_init(mem_chunks);
/* Architecture-dependent initialization. */
init_proc(VM_PROC_NR);
pt_init();
/* The kernel's freelist does not include boot-time modules; let
* the allocator know that the total memory is bigger.
*/
for (mod = &kernel_boot_info.module_list[0];
mod < &kernel_boot_info.module_list[kernel_boot_info.mods_with_kernel-1]; mod++) {
phys_bytes len = mod->mod_end-mod->mod_start+1;
len = roundup(len, VM_PAGE_SIZE);
mem_add_total_pages(len/VM_PAGE_SIZE);
}
kern_dyn = kernel_boot_info.kernel_allocated_bytes_dynamic;
kern_static = kernel_boot_info.kernel_allocated_bytes;
kern_static = roundup(kern_static, VM_PAGE_SIZE);
mem_add_total_pages((kern_dyn + kern_static)/VM_PAGE_SIZE);
/* Give these processes their own page table. */
for (ip = &kernel_boot_info.boot_procs[0];
ip < &kernel_boot_info.boot_procs[NR_BOOT_PROCS]; ip++) {
struct vmproc *vmp;
if(ip->proc_nr < 0) continue;
assert(ip->start_addr);
/* VM has already been set up by the kernel and pt_init().
* Any other boot process is already in memory and is set up
* here.
*/
if(ip->proc_nr == VM_PROC_NR) continue;
vmp = init_proc(ip->proc_nr);
exec_bootproc(vmp, ip);
/* Free the file blob */
assert(!(ip->start_addr % VM_PAGE_SIZE));
ip->len = roundup(ip->len, VM_PAGE_SIZE);
free_mem(ABS2CLICK(ip->start_addr), ABS2CLICK(ip->len));
}
/* Set up table of calls. */
#define CALLMAP(code, func) { int i; \
i=CALLNUMBER(code); \
assert(i >= 0); \
assert(i < NR_VM_CALLS); \
vm_calls[i].vmc_func = (func); \
vm_calls[i].vmc_name = #code; \
}
/* Set call table to 0. This invalidates all calls (clear
* vmc_func).
*/
memset(vm_calls, 0, sizeof(vm_calls));
/* Basic VM calls. */
CALLMAP(VM_MMAP, do_mmap);
CALLMAP(VM_MUNMAP, do_munmap);
CALLMAP(VM_MAP_PHYS, do_map_phys);
CALLMAP(VM_UNMAP_PHYS, do_munmap);
/* Calls from PM. */
CALLMAP(VM_EXIT, do_exit);
CALLMAP(VM_FORK, do_fork);
CALLMAP(VM_BRK, do_brk);
CALLMAP(VM_WILLEXIT, do_willexit);
CALLMAP(VM_NOTIFY_SIG, do_notify_sig);
/* Calls from VFS. */
CALLMAP(VM_VFS_REPLY, do_vfs_reply);
CALLMAP(VM_VFS_MMAP, do_vfs_mmap);
/* Calls from RS */
CALLMAP(VM_RS_SET_PRIV, do_rs_set_priv);
CALLMAP(VM_RS_UPDATE, do_rs_update);
CALLMAP(VM_RS_MEMCTL, do_rs_memctl);
/* Calls from RS/VFS */
CALLMAP(VM_PROCCTL, do_procctl);
/* Generic calls. */
CALLMAP(VM_REMAP, do_remap);
CALLMAP(VM_REMAP_RO, do_remap);
CALLMAP(VM_GETPHYS, do_get_phys);
CALLMAP(VM_SHM_UNMAP, do_munmap);
CALLMAP(VM_GETREF, do_get_refcount);
CALLMAP(VM_INFO, do_info);
CALLMAP(VM_QUERY_EXIT, do_query_exit);
CALLMAP(VM_WATCH_EXIT, do_watch_exit);
/* Cache blocks. */
CALLMAP(VM_MAPCACHEPAGE, do_mapcache);
CALLMAP(VM_SETCACHEPAGE, do_setcache);
/* getrusage */
CALLMAP(VM_GETRUSAGE, do_getrusage);
/* Initialize the structures for queryexit */
init_query_exit();
/* Acquire kernel ipc vectors that weren't available
* before VM had determined kernel mappings
*/
__minix_init();
}
void init_vm(void)
{
int s, i;
static struct memory mem_chunks[NR_MEMS];
static struct boot_image *ip;
extern void __minix_init(void);
#if SANITYCHECKS
incheck = nocheck = 0;
#endif
/* Retrieve various crucial boot parameters */
if(OK != (s=sys_getkinfo(&kernel_boot_info))) {
panic("couldn't get bootinfo: %d", s);
}
/* Sanity check */
assert(kernel_boot_info.mmap_size > 0);
assert(kernel_boot_info.mods_with_kernel > 0);
#if SANITYCHECKS
env_parse("vm_sanitychecklevel", "d", 0, &vm_sanitychecklevel, 0, SCL_MAX);
#endif
/* Get chunks of available memory. */
get_mem_chunks(mem_chunks);
/* Set table to 0. This invalidates all slots (clear VMF_INUSE). */
memset(vmproc, 0, sizeof(vmproc));
for(i = 0; i < ELEMENTS(vmproc); i++) {
vmproc[i].vm_slot = i;
}
/* region management initialization. */
map_region_init();
/* Initialize tables to all physical memory. */
mem_init(mem_chunks);
/* Architecture-dependent initialization. */
init_proc(VM_PROC_NR);
pt_init();
/* Give these processes their own page table. */
for (ip = &kernel_boot_info.boot_procs[0];
ip < &kernel_boot_info.boot_procs[NR_BOOT_PROCS]; ip++) {
struct vmproc *vmp;
if(ip->proc_nr < 0) continue;
assert(ip->start_addr);
/* VM has already been set up by the kernel and pt_init().
* Any other boot process is already in memory and is set up
* here.
*/
if(ip->proc_nr == VM_PROC_NR) continue;
vmp = init_proc(ip->proc_nr);
exec_bootproc(vmp, ip);
/* Free the file blob */
assert(!(ip->start_addr % VM_PAGE_SIZE));
ip->len = roundup(ip->len, VM_PAGE_SIZE);
free_mem(ABS2CLICK(ip->start_addr), ABS2CLICK(ip->len));
}
/* Set up table of calls. */
#define CALLMAP(code, func) { int i; \
i=CALLNUMBER(code); \
assert(i >= 0); \
assert(i < NR_VM_CALLS); \
vm_calls[i].vmc_func = (func); \
vm_calls[i].vmc_name = #code; \
}
/* Set call table to 0. This invalidates all calls (clear
* vmc_func).
*/
memset(vm_calls, 0, sizeof(vm_calls));
/* Basic VM calls. */
CALLMAP(VM_MMAP, do_mmap);
CALLMAP(VM_MUNMAP, do_munmap);
CALLMAP(VM_MAP_PHYS, do_map_phys);
CALLMAP(VM_UNMAP_PHYS, do_munmap);
/* Calls from PM. */
CALLMAP(VM_EXIT, do_exit);
CALLMAP(VM_FORK, do_fork);
CALLMAP(VM_BRK, do_brk);
CALLMAP(VM_WILLEXIT, do_willexit);
CALLMAP(VM_NOTIFY_SIG, do_notify_sig);
/* Calls from RS */
CALLMAP(VM_RS_SET_PRIV, do_rs_set_priv);
CALLMAP(VM_RS_UPDATE, do_rs_update);
CALLMAP(VM_RS_MEMCTL, do_rs_memctl);
/* Calls from RS/VFS */
CALLMAP(VM_PROCCTL, do_procctl);
/* Generic calls. */
CALLMAP(VM_REMAP, do_remap);
CALLMAP(VM_REMAP_RO, do_remap);
CALLMAP(VM_GETPHYS, do_get_phys);
CALLMAP(VM_SHM_UNMAP, do_munmap);
CALLMAP(VM_GETREF, do_get_refcount);
CALLMAP(VM_INFO, do_info);
CALLMAP(VM_QUERY_EXIT, do_query_exit);
CALLMAP(VM_WATCH_EXIT, do_watch_exit);
CALLMAP(VM_FORGETBLOCKS, do_forgetblocks);
CALLMAP(VM_FORGETBLOCK, do_forgetblock);
CALLMAP(VM_YIELDBLOCKGETBLOCK, do_yieldblockgetblock);
/* Initialize the structures for queryexit */
init_query_exit();
/* Acquire kernel ipc vectors that weren't available
* before VM had determined kernel mappings
*/
__minix_init();
}
