Very timid start at an amd64 man4 section. intro(4) is pathetic because it

matches GENERIC at the moment.

5 files changed, 563 insertions, 2 deletions

diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile
index d14d6bb8ebb..b370d3601fd 100644
--- a/share/man/man4/Makefile
+++ b/share/man/man4/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.251 2004/02/07 21:00:47 miod Exp $
+#	$OpenBSD: Makefile,v 1.252 2004/02/07 21:14:35 miod Exp $
 
 MAN=	aac.4 ac97.4 acphy.4 addcom.4 adv.4 aha.4 ahb.4 ahc.4 \
 	aic.4 amdpm.4 ami.4 amphy.4 an.4 aria.4 ast.4 atalk.4 \
@@ -56,7 +56,7 @@ MLINKS+=tty.4 cua.4
 MLINKS+=usb.4 uhub.4
 MLINKS+=vnd.4 svnd.4
 
-SUBDIR=	man4.alpha man4.cats man4.hp300 man4.hppa man4.i386 \
+SUBDIR=	man4.alpha man4.amd64 man4.cats man4.hp300 man4.hppa man4.i386 \
 	man4.mac68k man4.macppc man4.mvme68k man4.mvme88k \
 	man4.pegasos man4.sparc man4.sparc64 man4.vax
 
diff --git a/share/man/man4/man4.amd64/Makefile b/share/man/man4/man4.amd64/Makefile
new file mode 100644
index 00000000000..1e62a957933
--- /dev/null
+++ b/share/man/man4/man4.amd64/Makefile
@@ -0,0 +1,8 @@
+#	$OpenBSD: Makefile,v 1.1 2004/02/07 21:14:42 miod Exp $
+
+MAN=	autoconf.4 intro.4 mem.4
+
+MLINKS+= mem.4 kmem.4
+MANSUBDIR=amd64
+
+.include <bsd.prog.mk>
diff --git a/share/man/man4/man4.amd64/autoconf.4 b/share/man/man4/man4.amd64/autoconf.4
new file mode 100644
index 00000000000..8ac5c0c8937
--- /dev/null
+++ b/share/man/man4/man4.amd64/autoconf.4
@@ -0,0 +1,52 @@
+.\"	$OpenBSD: autoconf.4,v 1.1 2004/02/07 21:14:42 miod Exp $
+.\"
+.\" Copyright (c) 1994 Christopher G. Demetriou
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"      This product includes software developed by Christopher G. Demetriou.
+.\" 3. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd January 29, 2004
+.Dt AUTOCONF 4 amd64
+.Os
+.Sh NAME
+.Nm autoconf
+.Nd diagnostics from the autoconfiguration code
+.Sh DESCRIPTION
+When
+.Ox
+bootstraps it probes the innards of the machine
+on which it is running
+and locates controllers, drives, and other devices, printing out
+what it finds on the console.
+This procedure is driven by a system configuration table which is processed by
+.Xr config 8
+and compiled into each kernel.
+Devices which exist in the machine but are not configured into the
+kernel are usually not detected.
+.Sh SEE ALSO
+.Xr intro 4 ,
+.\" .Xr boot_amd64 8 ,
+.Xr config 8
diff --git a/share/man/man4/man4.amd64/intro.4 b/share/man/man4/man4.amd64/intro.4
new file mode 100644
index 00000000000..3e27d072b0e
--- /dev/null
+++ b/share/man/man4/man4.amd64/intro.4
@@ -0,0 +1,421 @@
+.\"	$OpenBSD: intro.4,v 1.1 2004/02/07 21:14:42 miod Exp $
+.\"
+.\" Copyright (c) 1994 Christopher G. Demetriou
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"      This product includes software developed by Christopher G. Demetriou.
+.\" 3. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd January 29, 2004
+.Dt INTRO 4 amd64
+.Os
+.Sh NAME
+.Nm intro
+.Nd introduction to special files and hardware support
+.Sh DESCRIPTION
+The manual pages in section 4 describe the special files,
+related driver functions, and networking support
+available in the system.
+In this part of the manual, the
+.Tn SYNOPSIS
+section of
+each configurable device gives a sample specification
+for use in constructing a system description for the
+.Xr config 8
+program.
+The
+.Tn DIAGNOSTICS
+section lists messages which may appear on the console
+and/or in the system error log
+.Pa /var/log/messages
+due to errors in device operation;
+see
+.Xr syslogd 8
+for more information.
+.Pp
+This section contains both devices
+which may be configured into the system
+and network related information.
+The networking support is introduced in
+.Xr netintro 4 .
+.Sh DEVICE SUPPORT
+This section describes the hardware supported on the amd64 platform.
+Software support for these devices comes in two forms.
+A hardware device may be supported with a character or block
+.Em device driver ,
+or it may be used within the networking subsystem and have a
+.Em network interface driver .
+Block and character devices are accessed through files in the file
+system of a special type; see
+.Xr mknod 8 .
+Network interfaces are indirectly accessed through the interprocess
+communication facilities provided by the system; see
+.Xr socket 2 .
+.Pp
+A hardware device is identified to the system at configuration time
+and the appropriate device or network interface driver is then compiled
+into the system.
+When the resultant system is booted, the autoconfiguration facilities
+in the system probe for the device and, if found, enable the software
+support for it.
+If a device does not respond at autoconfiguration
+time it is not accessible at any time afterwards.
+To enable a device which did not autoconfigure,
+the system will have to be rebooted.
+.Pp
+The autoconfiguration system is described in
+.Xr autoconf 4 .
+A list of the supported devices is given below.
+.Sh LIST OF DEVICES
+The devices listed below are supported in this incarnation of
+the system.
+Pseudo-devices are not listed.
+Devices are indicated by their functional interface.
+Not all supported devices are listed.
+.Pp
+.Bl -tag -width pcdisplay(4) -compact -offset indent
+.\" .It Xr aac 4
+.\" Adaptec "FSA" family (Adaptec AAC, Dell PERC, HP NetRaid) RAID controllers.
+.\" .It Xr addcom 4
+.\" Addonics FlexPort serial boards.
+.\" .It Xr adv 4
+.\" AdvanSys PCI narrow SCSI Host Adapters.
+.\" .It Xr adw 4
+.\" AdvanSys PCI wide SCSI Host Adapters.
+.\" .It Xr aha 4
+.\" Adaptec 154x ISA SCSI adapter boards.
+.\" .It Xr ahb 4
+.\" Adaptec 1742 EISA SCSI adapter boards.
+.It Xr ahc 4
+Adaptec 2xxx and 3xxx series PCI/VLB/EISA SCSI adapter boards.
+.\" .It Xr aic 4
+.\" Adaptec AIC-6260, Adaptec AIC-6360, Adaptec 152x, and SoundBlaster SCSI boards.
+.\" .It Xr amdpm 4
+.\" AMD768 Power Management.
+.\" .It Xr ami 4
+.\" American Megatrends Inc. MegaRAID Controllers.
+.\" .It Xr an 4
+.\" Aironet Communications 4500/4800 IEEE 802.11DS wireless network adapter.
+.\" .It Xr apm 4
+.\" Advanced Power Management.
+.\" .It Xr aria 4
+.\" Sierra Semiconductor Aria 16 sound cards.
+.\" .It Xr ast 4
+.\" Multiplexing serial communications card first made by AST.
+.\" .It Xr aue 4
+.\" ADMtek AN986-based USB Ethernet adapters.
+.\" .It Xr auich 4
+.\" Intel 82801AA/AB/BA and 440MX PCI audio.
+.\" .It Xr auvia 4
+.\" VIA VT82C686A and VT8233 integrated AC'97 audio device.
+.\" .It Xr awi 4
+.\" BayStack 650 PCMCIA wireless network adapter.
+.\" .It Xr az 4
+.\" Aztech/PackardBell FM Radio card.
+.\" .It Xr bge 4
+.\" Broadcom BCM570x (Tigon3) Gigabit Ethernet boards.
+.\" .It Xr bha 4
+.\" Buslogic BT-445, BT-74x, and BT-9xx SCSI boards.
+.\" .It Xr bktr 4
+.\" Brooktree video capture.
+.\" .It Xr boca 4
+.\" BOCA serial cards.
+.\" .It Xr cac 4
+.\" Compaq Smart ARRAY RAID controllers.
+.\" .It Xr clcs 4
+.\" Cirrus Logic CS4280 audio.
+.\" .It Xr clct 4
+.\" Cirrus Logic CS4281 audio.
+.\" .It Xr cmpci 4
+.\" C-Media CMI8x38 audio.
+.\" .It Xr cnw 4
+.\" Xircom CreditCard Netwave wireless network adapter.
+.It Xr com 4
+NS8250-, NS16450-, NS16550-, ST16550-, TI16750- and XR16850-based asynchronous
+serial communications.
+.\" .It Xr cue 4
+.\" CATC USB-EL1201A based USB Ethernet adapters.
+.\" .It Xr cy 4
+.\" Cyclades Cyclom-4Y, -8Y, and -16Y asynchronous serial adapters.
+.\" .It Xr cz 4
+.\" Cyclades Cyclades-Z asynchronous serial adapters.
+.\" .It Xr dc 4
+.\" DEC tulip clone ethernet cards (Macronix, Lite-On, Davicom, ADMtek).
+.\" .It Xr de 4
+.\" DEC tulip-based ethernet cards.
+.\" .It Xr dpt 4
+.\" DPT SmartCache/SmartRAID III and IV SCSI controllers.
+.\" .It Xr eap 4
+.\" Ensoniq AudioPCI (ES137x) audio.
+.\" .It Xr ec 4
+.\" 3Com EtherLink II Ethernet (3C503).
+.\" .It Xr ef 4
+.\" 3Com Fast EtherLink ISA Ethernet (3C515).
+.\" .It Xr eg 4
+.\" 3Com EtherLink Plus Ethernet (3C505).
+.\" .It Xr el 4
+.\" 3Com EtherLink Ethernet (3C501).
+.\" .It Xr elansc 4
+.\" AMD Elan SC520 System Controller.
+.\" .It Xr em 4
+.\" Intel i82542, i82543, and i82544 Pro/1000 Gigabit Ethernet.
+.\" .It Xr emu 4
+.\" Creative Labs SBLive! and PCI 512 audio.
+.\" .It Xr ep 4
+.\" 3Com EtherLink III Ethernet (3C5x9, 3C59x).
+.\" .It Xr esa 4
+.\" ESS Alegro 1 and Maestro 3 audio.
+.\" .It Xr eso 4
+.\" ESS Technology Solo-1 PCI AudioDrive (ES1938/ES1946) audio.
+.\" .It Xr ess 4
+.\" ESS Technology AudioDrive (ESS 1788, 1888, 1887 and 888) audio.
+.\" .It Xr ex 4
+.\" Intel EtherExpress PRO/10 ethernet cards.
+.\" .It Xr fdc 4
+.\" Floppy disk controllers.
+.\" .It Xr fea 4
+.\" .Tn DEC
+.\" DEFEA PCI FDDI controller.
+.\" .It Xr fms 4
+.\" Forte Media FM801 audio.
+.\" .It Xr fpa 4
+.\" .Tn DEC
+.\" DEFPA PCI FDDI controller.
+.It Xr fxp 4
+.Tn Intel
+EtherExpress PRO/100 Ethernet.
+.\" .It Xr gdt 4
+.\" ICP-Vortex GDT RAID controllers.
+.\" .It Xr geodesc 4
+.\" Geode SC1100 System Controller.
+.\" .It Xr gtp 4
+.\" Gemtek PCI FM radio adapter.
+.\" .It Xr gus 4
+.\" Gravis UltraSound and UltraSound/MAX audio.
+.\" .It Xr hifn 4
+.\" Hifn 7751 crypto accelerator.
+.\" .It Xr hsq 4
+.\" Hostess multiplexing serial communications boards.
+.\" .It Xr ie 4
+.\" StarLAN 10, EN100, StarLan Fiber, and 3Com 3c507 Ethernet.
+.\" .It Xr iha 4
+.\" Initio INIC-940 and INIC-950 based SCSI interfaces.
+.\" .It Xr iop 4
+.\" I2O adapter.
+.\" .It Xr ises 4
+.\" Securealink PCC-ISES hardware crypto accelerator.
+.\" .It Xr isp 4
+.\" QLogic PCI SCSI controllers.
+.\" .It Xr iy 4
+.\" Ether-Express PRO/10.
+.\" .It Xr joy 4
+.\" Joystick.
+.\" .It Xr kue 4
+.\" Kawasaki LSI KL5KUSB101B-based USB Ethernet.
+.\" .It Xr lc 4
+.\" .Tn DEC
+.\" EtherWORKS III Ethernet.
+.\" .It Xr le 4
+.\" BICC Isolan, Novell NE2100, and Digital DEPCA Ethernet.
+.\" .It Xr lge 4
+.\" Level 1 LXT1001 NetCellerator PCI gigabit ethernet.
+.\" .It Xr lmc 4
+.\" Lan Media Corporation SS1/DS1/HSSI/DS3 PCI WAN adapters.
+.\" .It Xr lms 4
+.\" Logitech-style bus mouse.
+.\" .It Xr lofn 4
+.\" Hifn 6500 crypto accelerator.
+.\" .It Xr lpt 4
+.\" Parallel port.
+.\".It Xr maestro 4
+.\"ESS Maestro 1, 2 and 2E audio.
+.\".It Xr mcd 4
+.\"Mitsumi CD-ROM drives.
+.\".It Xr mms 4
+.\"Microsoft-style bus mouse.
+.\".It Xr ncr 4
+.\"NCR PCI SCSI adapter boards.
+.\".It Xr ne 4
+.\"Novell NE1000 and 2000 Ethernet interface.
+.\".It Xr neo 4
+.\"NeoMagic 256AV/ZX audio.
+.\".It Xr nge 4
+.\"National Semiconductor PCI Gigabit Ethernet.
+.\".It Xr nofn 4
+.\"Hifn 7814/7851/7854 HIPP1 crypto processor.
+.\".It Xr npx 4
+.\"Numeric Processing Extension coprocessor and emulator.
+.\".It Xr opl 4
+.\"Yamaha OPL2 and OPL3 FM synthesizer.
+.\".It Xr pas 4
+.\"ProAudio spectrum audio.
+.\".It Xr pcdisplay 4
+.\"PC display adapter driver for MDA or CGA compatible adapters.
+.It Xr pckbc 4
+Traditional PC (ISA) keyboard.
+.\".It Xr pctr 4
+.\"CPU performance counter registers.
+.\".It Xr pms 4
+.\"PS/2 auxiliary port mouse, for generic mice.
+.\".It Xr pmsi 4
+.\"PS/2 auxiliary port mouse, for wheel mice.
+.\".It Xr pss 4
+.\"Personal Sound System audio.
+.\".It Xr puc 4
+.\"PCI ``universal'' communications card driver.
+.\".It Xr ray 4
+.\"Raytheon Raylink/WebGear Aviator wireless network adapter.
+.\".It Xr rl 4
+.\"Realtek 8129/8139 Ethernet.
+.\".It Xr rt 4
+.\"AIMS Lab Radiotrack FM radio adapter.
+.\".It Xr rtfps 4
+.\"Another multiplexing serial communications card.
+.\".It Xr safe 4
+.\"Safenet SafeXcel 1141/1741 crypto accelerator.
+.\".It Xr sb 4
+.\"Sound Blaster card.
+.\".It Xr sea 4
+.\"Seagate/Future Domain SCSI cards.
+.\".It Xr sf 4
+.\"Adaptec AIC-6915 Starfire PCI Fast Ethernet.
+.\".It Xr sf2r 4
+.\"SoundForte RadioLink SF16-FMR2 FM radio adapter.
+.\".It Xr sf4r 4
+.\"SoundForte RadioLink SF64-PCR FM radio adapter.
+.\".It Xr sfr 4
+.\"SoundForte RadioLink SF16-FMR FM radio adapter.
+.\".It Xr siop 4
+.\"LSI/Symbios Logic/NCR 53c8xx SCSI adapter boards.
+.\".It Xr sis 4
+.\"SiS 900, Sis 7016 and NS DP83815 Fast Ethernet.
+.It Xr sk 4
+SysKonnect 984x Gigabit Ethernet (9841/9842/9843/9844).
+.\".It Xr sm 4
+.\"SMC91C9x Ethernet.
+.\".It Xr speaker 4
+.\"Console speaker.
+.\".It Xr ste 4
+.\"Sundance Technologies ST201 Fast Ethernet.
+.\".It Xr stge 4
+.\"Sundance/Tamarack TC9021 Gigabit Ethernet.
+.\".It Xr sv 4
+.\"S3 SonicVibes cards.
+.\".It Xr tcic 4
+.\"Databook PCMCIA controllers.
+.\".It Xr ti 4
+.\"Alteon Tigon I & II Gigabit ethernet (3Com 3C985, Netgear GA620, etc).
+.\".It Xr tl 4
+.\"Texas Instruments ThunderLAN ethernet.
+.\".It Xr tr 4
+.\"IBM TROPIC Token-Ring adapters.
+.\".It Xr trm 4
+.\"TRM-S1040 based PCI SCSI Host Adapters.
+.\".It Xr twe 4
+.\"3ware Escalade RAID controller.
+.\".It Xr tx 4
+.\"SMC 9432 10/100 Mbps Ethernet cards.
+.\".It Xr txp 4
+.\"3Com 3XP Typhoon/Sidewinder (3CR990) Ethernet.
+.\".It Xr uaudio 4
+.\"USB audio devices.
+.\".It Xr ubsec 4
+.\"Broadcom Bluesteelnet uBsec 5501, 5601, 5805, and 5820.
+.\".It Xr udsbr 4
+.\"D-Link DSB-R100 USB radio adapter.
+.\".It Xr uftdi 4
+.\"FTDI FT8U100AX-based USB serial adapters.
+.\".It Xr uha 4
+.\"Ultrastor ISA and EISA SCSI adapter cards.
+.It Xr ukbd 4
+USB keyboard.
+.\".It Xr ulpt 4
+.\"USB printers.
+.\".It Xr umass 4
+.\"USB mass storage.
+.\".It Xr umct 4
+.\"MCT USB-RS232 serial adapter.
+.\".It Xr umidi 4
+.\"USB MIDI devices.
+.\".It Xr umodem 4
+.\"USB modems.
+.It Xr ums 4
+USB mouse.
+.\".It Xr upl 4
+.\"Prolific PL2301/PL2302-based host-to-host USB connectors.
+.\".It Xr uplcom 4
+.\"I/O Data USB-RSAQ2 USB serial adapters.
+.\".It Xr urio 4
+.\"Diamond Multimedia Rio MP3 device interface.
+.\".It Xr url 4
+.\"Realtek RTL8150L USB ethernet adapter.
+.\".It Xr uscanner 4
+.\"USB scanners.
+.\".It Xr usscanner 4
+.\"SCSI-over-USB scanners.
+.\".It Xr uvisor 4
+.\"Handspring Visor device interface.
+.\".It Xr uyap 4
+.\"YAP phone firmware interface.
+.It Xr vga 4
+PC display adapter driver for VGA compatible adapters.
+.\".It Xr vr 4
+.\"VIA Rhine Ethernet.
+.\".It Xr wb 4
+.\"Winbond W89C840F fast ethernet.
+.\".It Xr wdc 4
+.\"Standard ISA Western Digital type hard drive controllers.
+.\"MFM, RLL, ESDI, and IDE.
+.\".It Xr wds 4
+.\"WD-7000 SCSI host adapters.
+.\".It Xr wdt 4
+.\"Industrial Computer Source PCI-WDT50x watchdog timer cards.
+.\".It Xr we 4
+.\"Western Digital/SMC WD 80x3, SMC Elite Ultra and SMC EtherEZ Ethernet cards.
+.\".It Xr wi 4
+.\"WaveLAN/IEEE and PRISM-II 802.11DS wireless network adapters.
+.\".It Xr wss 4
+.\"Windows Sound System audio.
+.\".It Xr wt 4
+.\"Wangtek and compatible tape drives.
+.\"QIC-02 and QIC-36.
+.\".It Xr xe 4
+.\"Xircom PCMCIA Ethernet.
+.\".It Xr xl 4
+.\"3Com EtherLink XL and Fast EtherLink XL (3c9xx).
+.\".It Xr yds 4
+.\"Yamaha DS-XG audio.
+.\".It Xr ym 4
+.\"Yamaha OPL3-SAx audio.
+.El
+.Sh SEE ALSO
+.Xr autoconf 4 ,
+.Xr config 8
+.Sh HISTORY
+The
+amd64
+.Nm intro
+first appeared in
+.Ox 3.5 .
diff --git a/share/man/man4/man4.amd64/mem.4 b/share/man/man4/man4.amd64/mem.4
new file mode 100644
index 00000000000..d950bc8af54
--- /dev/null
+++ b/share/man/man4/man4.amd64/mem.4
@@ -0,0 +1,80 @@
+.\"	$OpenBSD: mem.4,v 1.1 2004/02/07 21:14:42 miod Exp $
+.\"
+.\" Copyright (c) 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	from: @(#)mem.4	5.3 (Berkeley) 5/2/91
+.\"
+.Dd January 29, 2004
+.Dt MEM 4 amd64
+.Os
+.Sh NAME
+.Nm mem ,
+.Nm kmem
+.Nd memory files
+.Sh DESCRIPTION
+The special file
+.Pa /dev/mem
+is an interface to the physical memory of the computer.
+Byte offsets in this file are interpreted as physical memory addresses.
+Reading and writing this file is equivalent to reading and writing
+memory itself.
+Only offsets within the bounds of
+.Pa /dev/mem
+are allowed.
+.Pp
+Kernel virtual memory is accessed through the interface
+.Pa /dev/kmem
+in the same manner as
+.Pa /dev/mem .
+Only kernel virtual addresses that are currently mapped to memory are allowed.
+.Pp
+On amd64, physical memory is discontiguous; especially,
+the ISA I/O memory space covers the physical address range from
+.Li 0x000a0000
+to
+.Li 0x00100000 .
+.Pp
+The kernel virtual memory begins at address
+.Li 0xffffffff80000000.
+.Pp
+Writeability of these devices is controlled by the system
+.Xr securelevel 7 .
+.Sh FILES
+.Bl -tag -width Pa -compact
+.It Pa /dev/mem
+.It Pa /dev/kmem
+.El
+.Sh SEE ALSO
+.Xr securelevel 7
+.Sh HISTORY
+The
+.Pa /dev/mem
+and
+.Pa /dev/kmem
+files appeared in
+.At v6 .