48#include "opt_hwpmc_hooks.h"
53#include <sys/capsicum.h>
54#include <sys/kernel.h>
57#include <sys/sysproto.h>
59#include <sys/filedesc.h>
62#include <sys/procctl.h>
64#include <sys/resource.h>
65#include <sys/resourcevar.h>
66#include <sys/rwlock.h>
67#include <sys/sysctl.h>
75#include <sys/syscallsubr.h>
76#include <sys/sysent.h>
77#include <sys/vmmeter.h>
78#if defined(__amd64__) || defined(__i386__)
79#include <machine/md_var.h>
82#include <security/audit/audit.h>
83#include <security/mac/mac_framework.h>
98#include <sys/pmckern.h>
103 "Do not apply RLIMIT_MEMLOCK on mlockall");
106 "mincore reports mappings, not residency");
109 "Imply maximum page protections in mmap() when none are specified");
112#define MAP_32BIT_MAX_ADDR ((vm_offset_t)1 << 31)
117#ifndef _SYS_SYSPROTO_H_
130#ifndef _SYS_SYSPROTO_H_
143#if defined(COMPAT_43)
145ogetpagesize(
struct thread *td,
struct ogetpagesize_args *uap)
148 td->td_retval[0] = PAGE_SIZE;
166#ifndef _SYS_SYSPROTO_H_
182 return (
kern_mmap(td, &(
struct mmap_req){
183 .mr_hint = (uintptr_t)uap->
addr,
185 .mr_prot = uap->
prot,
186 .mr_flags = uap->
flags,
196 if ((p->p_flag2 & P2_PROTMAX_DISABLE) != 0 ||
197 (p->p_fctl0 & NT_FREEBSD_FCTL_PROTMAX_DISABLE) != 0)
212 vm_offset_t addr, orig_addr;
213 vm_size_t len, pageoff, size;
215 int align, error, fd, flags, max_prot, prot;
217 mmap_check_fp_fn check_fp_fn;
219 orig_addr = addr = mrp->mr_hint;
222 flags = mrp->mr_flags;
225 check_fp_fn = mrp->mr_check_fp_fn;
227 if ((prot & ~(_PROT_ALL | PROT_MAX(_PROT_ALL))) != 0)
229 max_prot = PROT_MAX_EXTRACT(prot);
230 prot = PROT_EXTRACT(prot);
231 if (max_prot != 0 && (max_prot & prot) != prot)
250 flags &= ~(MAP_RESERVED0020 | MAP_RESERVED0040);
261 if (!SV_CURPROC_FLAG(SV_AOUT)) {
262 if ((len == 0 && p->p_osrel >= P_OSREL_MAP_ANON) ||
263 ((flags & MAP_ANON) != 0 && (fd != -1 || pos != 0)))
266 if ((flags & MAP_ANON) != 0)
270 if (flags & MAP_STACK) {
272 ((prot & (PROT_READ | PROT_WRITE)) != (PROT_READ | PROT_WRITE)))
277 if ((flags & ~(MAP_SHARED | MAP_PRIVATE | MAP_FIXED | MAP_HASSEMAPHORE |
278 MAP_STACK | MAP_NOSYNC | MAP_ANON | MAP_EXCL | MAP_NOCORE |
279 MAP_PREFAULT_READ | MAP_GUARD |
283 MAP_ALIGNMENT_MASK)) != 0)
285 if ((flags & (MAP_EXCL | MAP_FIXED)) == MAP_EXCL)
287 if ((flags & (MAP_SHARED | MAP_PRIVATE)) == (MAP_SHARED | MAP_PRIVATE))
289 if (prot != PROT_NONE &&
290 (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) != 0)
292 if ((flags & MAP_GUARD) != 0 && (prot != PROT_NONE || fd != -1 ||
293 pos != 0 || (flags & ~(MAP_FIXED | MAP_GUARD | MAP_EXCL |
297 MAP_ALIGNMENT_MASK)) != 0))
304 pageoff = (pos & PAGE_MASK);
308 size = len + pageoff;
309 size = round_page(size);
315 align = flags & MAP_ALIGNMENT_MASK;
316 if (align != 0 && align != MAP_ALIGNED_SUPER &&
317 (align >> MAP_ALIGNMENT_SHIFT >=
sizeof(
void *) * NBBY ||
318 align >> MAP_ALIGNMENT_SHIFT < PAGE_SHIFT))
325 if (flags & MAP_FIXED) {
332 if (addr & PAGE_MASK)
339 if (flags & MAP_32BIT && addr + size > MAP_32BIT_MAX_ADDR)
341 }
else if (flags & MAP_32BIT) {
347 if (addr + size > MAP_32BIT_MAX_ADDR)
360 (addr >= round_page((vm_offset_t)vms->
vm_taddr) &&
361 addr < round_page((vm_offset_t)vms->
vm_daddr +
362 lim_max(td, RLIMIT_DATA))))
363 addr = round_page((vm_offset_t)vms->
vm_daddr +
364 lim_max(td, RLIMIT_DATA));
374 }
else if ((flags & MAP_GUARD) != 0) {
377 }
else if ((flags & MAP_ANON) != 0) {
384 max_prot, flags, NULL, pos, FALSE, td);
392 cap_rights_init_one(&rights, CAP_MMAP);
393 if (prot & PROT_READ)
394 cap_rights_set_one(&rights, CAP_MMAP_R);
395 if ((flags & MAP_SHARED) != 0) {
396 if (prot & PROT_WRITE)
397 cap_rights_set_one(&rights, CAP_MMAP_W);
399 if (prot & PROT_EXEC)
400 cap_rights_set_one(&rights, CAP_MMAP_X);
401 error = fget_mmap(td, fd, &rights, &cap_maxprot, &fp);
404 if ((flags & (MAP_SHARED | MAP_PRIVATE)) == 0 &&
405 p->p_osrel >= P_OSREL_MAP_FSTRICT) {
409 if (check_fp_fn != NULL) {
410 error = check_fp_fn(fp, prot, max_prot & cap_maxprot,
415 if (fp->f_ops == &shm_ops && shm_largepage(fp->f_data))
418 error = fo_mmap(fp, &vms->
vm_map, &addr, size, prot,
419 max_prot & cap_maxprot, flags, pos, td);
423 td->td_retval[0] = (register_t) (addr + pageoff);
431#if defined(COMPAT_FREEBSD6)
433freebsd6_mmap(
struct thread *td,
struct freebsd6_mmap_args *uap)
435 return (
kern_mmap(td, &(
struct mmap_req){
436 .mr_hint = (uintptr_t)uap->addr,
438 .mr_prot = uap->prot,
439 .mr_flags = uap->flags,
447#ifndef _SYS_SYSPROTO_H_
458ommap(
struct thread *td,
struct ommap_args *uap)
460 return (kern_ommap(td, (uintptr_t)uap->addr, uap->len, uap->prot,
461 uap->flags, uap->fd, uap->pos));
465kern_ommap(
struct thread *td, uintptr_t hint,
int len,
int oprot,
466 int oflags,
int fd,
long pos)
468 static const char cvtbsdprot[8] = {
472 PROT_EXEC | PROT_WRITE,
474 PROT_EXEC | PROT_READ,
475 PROT_WRITE | PROT_READ,
476 PROT_EXEC | PROT_WRITE | PROT_READ,
483#define OMAP_ANON 0x0002
484#define OMAP_COPY 0x0020
485#define OMAP_SHARED 0x0010
486#define OMAP_FIXED 0x0100
488 prot = cvtbsdprot[oprot & 0x7];
489#if (defined(COMPAT_FREEBSD32) && defined(__amd64__)) || defined(__i386__)
490 if (i386_read_exec && SV_PROC_FLAG(td->td_proc, SV_ILP32) &&
495 if (oflags & OMAP_ANON)
497 if (oflags & OMAP_COPY)
499 if (oflags & OMAP_SHARED)
502 flags |= MAP_PRIVATE;
503 if (oflags & OMAP_FIXED)
505 return (
kern_mmap(td, &(
struct mmap_req){
516#ifndef _SYS_SYSPROTO_H_
531kern_msync(
struct thread *td, uintptr_t addr0,
size_t size,
int flags)
539 pageoff = (addr & PAGE_MASK);
542 size = (vm_size_t) round_page(size);
543 if (addr + size < addr)
546 if ((flags & (MS_ASYNC|MS_INVALIDATE)) == (MS_ASYNC|MS_INVALIDATE))
549 map = &td->td_proc->p_vmspace->vm_map;
554 rv =
vm_map_sync(map, addr, addr + size, (flags & MS_ASYNC) == 0,
555 (flags & MS_INVALIDATE) != 0);
570#ifndef _SYS_SYSPROTO_H_
587 struct pmckern_map_out pkm;
591 vm_offset_t addr, end;
600 pageoff = (addr & PAGE_MASK);
603 size = (vm_size_t) round_page(size);
605 map = &td->td_proc->p_vmspace->vm_map;
612 if (PMC_HOOK_INSTALLED(PMC_FN_MUNMAP)) {
618 pkm.pm_address = (uintptr_t) NULL;
620 for (; entry->start < end;
624 pkm.pm_address = (uintptr_t) addr;
625 pkm.pm_size = (size_t) size;
635 if (rv ==
KERN_SUCCESS && __predict_false(pmc_handled)) {
638 if (pkm.pm_address != (uintptr_t) NULL)
639 PMC_CALL_HOOK(td, PMC_FN_MUNMAP, (
void *) &pkm);
648#ifndef _SYS_SYSPROTO_H_
667 int vm_error, max_prot;
671 if ((prot & ~(_PROT_ALL | PROT_MAX(_PROT_ALL))) != 0)
673 max_prot = PROT_MAX_EXTRACT(prot);
674 prot = PROT_EXTRACT(prot);
675 pageoff = (addr & PAGE_MASK);
678 size = (vm_size_t) round_page(size);
679#ifdef COMPAT_FREEBSD32
680 if (SV_PROC_FLAG(td->td_proc, SV_ILP32)) {
681 if (((addr + size) & 0xffffffff) < addr)
685 if (addr + size < addr)
692 addr, addr + size, prot, max_prot, flags);
707#ifndef _SYS_SYSPROTO_H_
726 vm_size_t size, pageoff;
729 addr = (vm_offset_t)addr0;
733 pageoff = (addr & PAGE_MASK);
736 size = (vm_size_t) round_page(size);
737 if (addr + size < addr)
741 addr + size, inherit)) {
750#ifndef _SYS_SYSPROTO_H_
769 vm_offset_t addr, end, start;
776 if (behav == MADV_PROTECT) {
778 return (kern_procctl(td, P_PID, td->td_proc->p_pid,
779 PROC_SPROTECT, &flags));
786 map = &td->td_proc->p_vmspace->vm_map;
795 start = trunc_page(addr);
796 end = round_page(addr + len);
804#ifndef _SYS_SYSPROTO_H_
826 vm_offset_t addr, cend, end, first_addr;
830 int error, lastvecindex, mincoreinfo, vecindex;
831 unsigned int timestamp;
837 first_addr = addr = trunc_page(addr0);
838 end = round_page(addr0 + len);
839 map = &td->td_proc->p_vmspace->vm_map;
860 while (entry->
start < end) {
866 if (current->
end < end &&
883 if (addr < current->start)
884 addr = current->
start;
889 for (; addr < cend; addr += PAGE_SIZE) {
906 }
else if (pa != 0) {
917 while (
object == NULL || m->object !=
object) {
920 object = atomic_load_ptr(&m->object);
928 (
"mincore: page %p is mapped but invalid",
930 }
else if (mincoreinfo == 0) {
947 (addr - current->
start));
952 mincoreinfo = MINCORE_INCORE;
962 mincoreinfo |= MINCORE_MODIFIED_OTHER;
975 mincoreinfo |= MINCORE_REFERENCED_OTHER;
989 vecindex = atop(addr - first_addr);
995 while ((lastvecindex + 1) < vecindex) {
997 error = subyte(vec + lastvecindex, 0);
1007 error = subyte(vec + vecindex, mincoreinfo);
1021 lastvecindex = vecindex;
1034 vecindex = atop(end - first_addr);
1035 while ((lastvecindex + 1) < vecindex) {
1037 error = subyte(vec + lastvecindex, 0);
1056#ifndef _SYS_SYSPROTO_H_
1066 return (
kern_mlock(td->td_proc, td->td_ucred,
1067 __DECONST(uintptr_t, uap->
addr), uap->
len));
1071kern_mlock(
struct proc *proc,
struct ucred *cred, uintptr_t addr0,
size_t len)
1073 vm_offset_t addr, end, last, start;
1074 vm_size_t npages, size;
1076 unsigned long nsize;
1079 error = priv_check_cred(cred, PRIV_VM_MLOCK);
1085 start = trunc_page(addr);
1086 end = round_page(last);
1087 if (last < addr || end < addr)
1089 npages = atop(end - start);
1092 map = &proc->p_vmspace->vm_map;
1095 if (nsize > lim_cur_proc(proc, RLIMIT_MEMLOCK)) {
1103 error = racct_set(proc, RACCT_MEMLOCK, nsize);
1114 racct_set(proc, RACCT_MEMLOCK,
1129#ifndef _SYS_SYSPROTO_H_
1141 map = &td->td_proc->p_vmspace->vm_map;
1142 error = priv_check(td, PRIV_VM_MLOCK);
1146 if ((uap->
how == 0) || ((uap->
how & ~(MCL_CURRENT|MCL_FUTURE)) != 0))
1154 if (map->
size > lim_cur(td, RLIMIT_MEMLOCK))
1159 PROC_LOCK(td->td_proc);
1160 error = racct_set(td->td_proc, RACCT_MEMLOCK, map->
size);
1161 PROC_UNLOCK(td->td_proc);
1167 if (uap->
how & MCL_FUTURE) {
1174 if (uap->
how & MCL_CURRENT) {
1192 PROC_LOCK(td->td_proc);
1193 racct_set(td->td_proc, RACCT_MEMLOCK,
1195 PROC_UNLOCK(td->td_proc);
1202#ifndef _SYS_SYSPROTO_H_
1214 map = &td->td_proc->p_vmspace->vm_map;
1215 error = priv_check(td, PRIV_VM_MUNLOCK);
1229 PROC_LOCK(td->td_proc);
1230 racct_set(td->td_proc, RACCT_MEMLOCK, 0);
1231 PROC_UNLOCK(td->td_proc);
1238#ifndef _SYS_SYSPROTO_H_
1254 vm_offset_t addr, end, last, start;
1260 error = priv_check(td, PRIV_VM_MUNLOCK);
1265 start = trunc_page(addr);
1266 end = round_page(last);
1267 if (last < addr || end < addr)
1269 error =
vm_map_unwire(&td->td_proc->p_vmspace->vm_map, start, end,
1273 PROC_LOCK(td->td_proc);
1274 map = &td->td_proc->p_vmspace->vm_map;
1275 racct_set(td->td_proc, RACCT_MEMLOCK,
1277 PROC_UNLOCK(td->td_proc);
1292 struct vnode *vp, vm_ooffset_t *foffp,
vm_object_t *objp,
1293 boolean_t *writecounted)
1302 cred = td->td_ucred;
1304 (*flagsp & MAP_SHARED) != 0;
1305 if ((error = vget(vp, LK_SHARED)) != 0)
1307 AUDIT_ARG_VNODE1(vp);
1311 if (vp->v_type == VREG) {
1319 if (obj->type ==
OBJT_VNODE && obj->handle != vp) {
1321 vp = (
struct vnode *)obj->handle;
1326 error = vget(vp, LK_SHARED);
1331 *writecounted = TRUE;
1338 if ((error = VOP_GETATTR(vp, &va, cred)))
1342 error = mac_vnode_check_mmap(cred, vp, (
int)prot, flags);
1346 if ((flags & MAP_SHARED) != 0) {
1347 if ((va.va_flags & (SF_SNAPSHOT|IMMUTABLE|APPEND)) != 0) {
1352 *maxprotp &= ~VM_PROT_WRITE;
1360 objsize = round_page(va.va_size);
1361 if (va.va_nlink == 0)
1362 flags |= MAP_NOSYNC;
1373 (
"wrong object type"));
1375#if VM_NRESERVLEVEL > 0
1389 if (error != 0 && *writecounted) {
1390 *writecounted = FALSE;
1405 vm_prot_t *maxprotp,
int *flagsp,
struct cdev *cdev,
struct cdevsw *dsw,
1413 if (dsw->d_flags & D_MMAP_ANON) {
1417 *flagsp |= MAP_ANON;
1426 if (flags & (MAP_PRIVATE|MAP_COPY))
1431 flags |= MAP_SHARED;
1433 error = mac_cdev_check_mmap(td->td_ucred, cdev, (
int)prot);
1446 error = dsw->d_mmap_single(cdev, foff, objsize, objp, (
int)prot);
1447 if (error != ENODEV)
1472 struct thread *td = curthread;
1474 boolean_t writecounted;
1479 size = round_page(size);
1481 writecounted = FALSE;
1486 switch (handle_type) {
1493 dsw = dev_refthread(cdev, &ref);
1496 error =
vm_mmap_cdev(td, size, prot, &maxprot, &flags, cdev,
1497 dsw, &foff, &
object);
1498 dev_relthread(cdev, ref);
1503 handle, &foff, &
object, &writecounted);
1506 if (handle == NULL) {
1518 error =
vm_mmap_object(map, addr, size, prot, maxprot, flags,
object,
1519 foff, writecounted, td);
1520 if (error != 0 &&
object != NULL) {
1537 RACCT_PROC_LOCK(td->td_proc);
1538 if (map->
size + size > lim_cur(td, RLIMIT_VMEM)) {
1539 RACCT_PROC_UNLOCK(td->td_proc);
1542 if (racct_set(td->td_proc, RACCT_VMEM, map->
size + size)) {
1543 RACCT_PROC_UNLOCK(td->td_proc);
1548 lim_cur(td, RLIMIT_MEMLOCK)) {
1549 racct_set_force(td->td_proc, RACCT_VMEM, map->
size);
1550 RACCT_PROC_UNLOCK(td->td_proc);
1553 error = racct_set(td->td_proc, RACCT_MEMLOCK,
1556 racct_set_force(td->td_proc, RACCT_VMEM, map->
size);
1557 RACCT_PROC_UNLOCK(td->td_proc);
1561 RACCT_PROC_UNLOCK(td->td_proc);
1572 boolean_t writecounted,
struct thread *td)
1574 vm_offset_t max_addr;
1575 int docow, error, findspace, rv;
1578 curmap = map == &td->td_proc->p_vmspace->vm_map;
1593 if (foff & PAGE_MASK)
1596 if ((flags & MAP_FIXED) == 0) {
1598 *addr = round_page(*addr);
1600 if (*addr != trunc_page(*addr))
1605 if (flags & MAP_ANON) {
1606 if (
object != NULL || foff != 0)
1609 }
else if (flags & MAP_PREFAULT_READ)
1614 if ((flags & (MAP_ANON|MAP_SHARED)) == 0)
1616 if (flags & MAP_NOSYNC)
1618 if (flags & MAP_NOCORE)
1621 if (flags & MAP_SHARED)
1625 if (flags & MAP_STACK) {
1630 if ((flags & MAP_EXCL) != 0)
1632 if ((flags & MAP_GUARD) != 0)
1636 if ((flags & MAP_ALIGNMENT_MASK) == MAP_ALIGNED_SUPER)
1638 else if ((flags & MAP_ALIGNMENT_MASK) != 0)
1640 MAP_ALIGNMENT_SHIFT);
1645 if ((flags & MAP_32BIT) != 0)
1646 max_addr = MAP_32BIT_MAX_ADDR;
1650 round_page((vm_offset_t)td->td_proc->p_vmspace->
1651 vm_daddr + lim_max(td, RLIMIT_DATA)), max_addr,
1652 findspace, prot, maxprot, docow);
1655 max_addr, findspace, prot, maxprot, docow);
1659 prot, maxprot, docow);
boolean_t pmap_is_referenced(vm_page_t m)
#define pmap_wired_count(pm)
int pmap_mincore(pmap_t pmap, vm_offset_t addr, vm_paddr_t *pap)
boolean_t pmap_is_modified(vm_page_t m)
vm_paddr_t pmap_extract(pmap_t pmap, vm_offset_t va)
union vm_map_object object
struct vm_object * vm_object
int vm_map_find_min(vm_map_t map, vm_object_t object, vm_ooffset_t offset, vm_offset_t *addr, vm_size_t length, vm_offset_t min_addr, vm_offset_t max_addr, int find_space, vm_prot_t prot, vm_prot_t max, int cow)
int vm_map_protect(vm_map_t map, vm_offset_t start, vm_offset_t end, vm_prot_t new_prot, vm_prot_t new_maxprot, int flags)
int vm_map_wire(vm_map_t map, vm_offset_t start, vm_offset_t end, int flags)
int vm_map_madvise(vm_map_t map, vm_offset_t start, vm_offset_t end, int behav)
int vm_map_inherit(vm_map_t map, vm_offset_t start, vm_offset_t end, vm_inherit_t new_inheritance)
int vm_map_wire_locked(vm_map_t map, vm_offset_t start, vm_offset_t end, int flags)
int vm_map_sync(vm_map_t map, vm_offset_t start, vm_offset_t end, boolean_t syncio, boolean_t invalidate)
boolean_t vm_map_lookup_entry(vm_map_t map, vm_offset_t address, vm_map_entry_t *entry)
int vm_map_find(vm_map_t map, vm_object_t object, vm_ooffset_t offset, vm_offset_t *addr, vm_size_t length, vm_offset_t max_addr, int find_space, vm_prot_t prot, vm_prot_t max, int cow)
boolean_t vm_map_check_protection(vm_map_t map, vm_offset_t start, vm_offset_t end, vm_prot_t protection)
int vm_map_fixed(vm_map_t map, vm_object_t object, vm_ooffset_t offset, vm_offset_t start, vm_size_t length, vm_prot_t prot, vm_prot_t max, int cow)
int vm_map_delete(vm_map_t map, vm_offset_t start, vm_offset_t end)
int vm_map_unwire(vm_map_t map, vm_offset_t start, vm_offset_t end, int flags)
static __inline void vm_map_modflags(vm_map_t map, vm_flags_t set, vm_flags_t clear)
#define MAP_STACK_GROWS_DOWN
#define vm_map_unlock_read(map)
#define VMFS_OPTIMAL_SPACE
#define VMFS_ALIGNED_SPACE(x)
#define VM_MAP_WIRE_HOLESOK
static __inline vm_offset_t vm_map_max(const struct vm_map *map)
#define MAP_ENTRY_IS_SUB_MAP
static bool vm_map_range_valid(vm_map_t map, vm_offset_t start, vm_offset_t end)
#define vm_map_lock_read(map)
#define MAP_INHERIT_SHARE
#define MAP_DISABLE_SYNCER
#define MAP_COPY_ON_WRITE
#define VM_MAP_PROTECT_SET_PROT
#define vm_map_lock_downgrade(map)
static __inline pmap_t vmspace_pmap(struct vmspace *vmspace)
#define MAP_PREFAULT_PARTIAL
#define VM_MAP_WIRE_NOHOLES
static __inline vm_offset_t vm_map_min(const struct vm_map *map)
static vm_map_entry_t vm_map_entry_succ(vm_map_entry_t entry)
#define vm_map_unlock(map)
#define VM_MAP_PROTECT_SET_MAXPROT
#define MAP_DISABLE_COREDUMP
int kern_mmap(struct thread *td, const struct mmap_req *mrp)
int kern_mmap_racct_check(struct thread *td, vm_map_t map, vm_size_t size)
int kern_madvise(struct thread *td, uintptr_t addr0, size_t len, int behav)
int sys_munlockall(struct thread *td, struct munlockall_args *uap)
int sys_mlockall(struct thread *td, struct mlockall_args *uap)
int kern_mincore(struct thread *td, uintptr_t addr0, size_t len, char *vec)
static int mincore_mapped
_Static_assert(MAXPAGESIZES<=4, "MINCORE_SUPER too narrow")
int sys_sbrk(struct thread *td, struct sbrk_args *uap)
static int imply_prot_max
int sys_mlock(struct thread *td, struct mlock_args *uap)
int sys_sstk(struct thread *td, struct sstk_args *uap)
int vm_mmap_cdev(struct thread *td, vm_size_t objsize, vm_prot_t prot, vm_prot_t *maxprotp, int *flagsp, struct cdev *cdev, struct cdevsw *dsw, vm_ooffset_t *foff, vm_object_t *objp)
int vm_mmap(vm_map_t map, vm_offset_t *addr, vm_size_t size, vm_prot_t prot, vm_prot_t maxprot, int flags, objtype_t handle_type, void *handle, vm_ooffset_t foff)
SYSCTL_INT(_vm, OID_AUTO, old_mlock, CTLFLAG_RWTUN, &old_mlock, 0, "Do not apply RLIMIT_MEMLOCK on mlockall")
int vm_mmap_to_errno(int rv)
int kern_msync(struct thread *td, uintptr_t addr0, size_t size, int flags)
int kern_munlock(struct thread *td, uintptr_t addr0, size_t size)
int sys_mincore(struct thread *td, struct mincore_args *uap)
int sys_minherit(struct thread *td, struct minherit_args *uap)
int kern_mlock(struct proc *proc, struct ucred *cred, uintptr_t addr0, size_t len)
int sys_mmap(struct thread *td, struct mmap_args *uap)
int kern_minherit(struct thread *td, uintptr_t addr0, size_t len, int inherit0)
int sys_madvise(struct thread *td, struct madvise_args *uap)
int sys_mprotect(struct thread *td, struct mprotect_args *uap)
int vm_mmap_object(vm_map_t map, vm_offset_t *addr, vm_size_t size, vm_prot_t prot, vm_prot_t maxprot, int flags, vm_object_t object, vm_ooffset_t foff, boolean_t writecounted, struct thread *td)
int kern_mprotect(struct thread *td, uintptr_t addr0, size_t size, int prot)
int kern_mmap_maxprot(struct proc *p, int prot)
int sys_munmap(struct thread *td, struct munmap_args *uap)
int kern_munmap(struct thread *td, uintptr_t addr0, size_t size)
int sys_munlock(struct thread *td, struct munlock_args *uap)
int vm_mmap_vnode(struct thread *td, vm_size_t objsize, vm_prot_t prot, vm_prot_t *maxprotp, int *flagsp, struct vnode *vp, vm_ooffset_t *foffp, vm_object_t *objp, boolean_t *writecounted)
int sys_msync(struct thread *td, struct msync_args *uap)
void vm_object_reference(vm_object_t object)
void vm_object_deallocate(vm_object_t object)
static __inline void vm_object_color(vm_object_t object, u_short color)
#define VM_OBJECT_WLOCK(object)
#define VM_OBJECT_WUNLOCK(object)
#define VM_OBJECT_ASSERT_WLOCKED(object)
vm_page_t PHYS_TO_VM_PAGE(vm_paddr_t pa)
vm_page_t vm_page_lookup(vm_object_t object, vm_pindex_t pindex)
static bool vm_page_all_valid(vm_page_t m)
static bool vm_page_none_valid(vm_page_t m)
static __inline void vm_page_dirty(vm_page_t m)
u_long vm_page_max_user_wired
#define KERN_RESOURCE_SHORTAGE
#define KERN_PROTECTION_FAILURE
#define KERN_OUT_OF_BOUNDS
#define KERN_INVALID_ADDRESS
#define KERN_INVALID_ARGUMENT