.\"	$OpenBSD: uvm_fault.9,v 1.1 2019/12/05 15:14:28 mpi Exp $
.\"	$NetBSD: uvm.9,v 1.14 2000/06/29 06:08:44 mrg Exp $
.\"
.\" Copyright (c) 1998 Matthew R. Green
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.Dd $Mdocdate: November 5 2019 $
.Dt UVM_FAULT 9
.Os
.Sh NAME
.Nm uvm_fault
.Nd page fault handling
.Sh SYNOPSIS
.In sys/param.h
.In uvm/uvm.h
.Ft int
.Fn uvm_fault "vm_map_t orig_map" "vaddr_t vaddr" "vm_fault_t fault_type" "vm_prot_t access_type"
.Sh DESCRIPTION
The
.Fn uvm_fault
function is the main entry point for faults.
It takes
.Fa orig_map
as the map the fault originated in, a
.Fa vaddr
offset into the map the fault occurred,
.Fa fault_type
describing the type of fault, and
.Fa access_type
describing the type of access requested.
.Fn uvm_fault
returns a standard errno.
.Sh SEE ALSO
.Xr pmap 9