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[pbsd-mg2] md root (Re: Serial console)
takesi@is.titech.ac.jp wrote:
> In message "[pbsd-mg2] RE: Serial console ",
> "たけむら" write:
> >arch/hpcmips/hpcmips/conf.c の bdevsw[]にエントリをつくって、
> >autoconf.c の findroot() あたりがそれを使うようにする必要があります。
> >そのへんはすでにやっていますか？
>
> あ、やってません。そういう仕組みが必要なんですね。
pmaxから持ってきました。こちらのCVS的な準備が整ってないので
commitする前にとりあえず patch付けときます。
# md_root.c って atariとsparc64以外全部同じなのね... MIに置いた方が良さげ。
で MEMDISKで作ったkernelに、
ramdisk fs imageを mdsetimageでくっつけるわけですが、
/usr/sbin/mdsetimageではcross環境で使用できません。
で、BFD使ったmdsetimageを作って現在テストしてます。
# さて、実機ではどうやってテストしようか...
sakamoto@cec.co.jp
--
diff -ruN ../../../osrc/sys/arch/hpcmips/conf/MEMDISK hpcmips/conf/MEMDISK
--- ../../../osrc/sys/arch/hpcmips/conf/MEMDISK Thu Jan 1 09:00:00 1970
+++ hpcmips/conf/MEMDISK Wed May 12 11:20:34 1999
@@ -0,0 +1,137 @@
+#
+# Distribution kernel (any model) kernel config file
+
+#
+# $NetBSD:$
+#
+include "arch/hpcmips/conf/std.hpcmips"
+
+maxusers 8
+
+options MIPS3 # R4000/R4400/R4600 CPUs
+
+# Support for specific models of H/PC MIPS
+options VR41X1 # NEC VR41x1 series
+options MIPS3_L2CACHE_ABSENT
+
+# Enable the hooks used for initializing the root memory-disk.
+options MEMORY_DISK_HOOKS
+options MEMORY_DISK_IS_ROOT # force root on memory disk
+options MEMORY_DISK_SERVER=0 # no userspace memory disk support
+options MINIROOTSIZE=4096 # size of memory disk, in blocks
+#options MINIROOTSIZE=2880 # 1.44M, same as a floppy
+
+# Standard system options
+options DDB # in-kernel debugger
+#options DDB_ONPANIC=0 # don't enter debugger on panic
+#options DIAGNOSTIC # extra kernel debugging checks
+#options DEBUG # extra kernel debugging support
+options "COMPAT_43" # compatibility with 4.3BSD binaries
+options KTRACE # system call tracing support
+options "NKMEMCLUSTERS=1024" # 4K pages in kernel malloc pool
+
+#options SCSIVERBOSE # Verbose SCSI errors
+
+options NTP # network time protocol
+#options UCONSOLE # users can redirect console (unsafe)
+
+#options SYSCALL_DEBUG # for debug
+#options HPCMIPS_L1CAHCE_DISABLE # disable L1 cache for debug
+options HPCMIPS_PGSIZE_16K # page size is 16KB
+
+# Filesystem options
+file-system FFS # fast filesystem with user and group quotas
+#file-system MFS # memory-based filesystem
+#file-system NFS # Sun NFS-compatible filesystem (client)
+#file-system LFS # Log-based filesystem (still experimental)
+#file-system CD9660 # ISO 9660 + Rock Ridge file system
+#file-system FDESC # /dev/fd
+file-system KERNFS # /kern (kernel informational filesystem)
+#file-system NULLFS # loopback file system
+#file-system PORTAL # portal filesystem (still experimental)
+file-system PROCFS # /proc
+#file-system UMAPFS # NULLFS + uid and gid remapping
+file-system UNION
+
+options FIFO # POSIX fifo support (in all filesystems)
+#options NFSSERVER # Sun NFS-compatible filesystem (server)
+options QUOTA # UFS quotas
+
+# Networking options
+options INET # Internet protocols
+options "TCP_COMPAT_42" # compatibility with 4.2BSD TCP/IP
+#options GATEWAY # IP packet forwarding
+options MULTICAST # Multicast support
+#options MROUTING # Multicast routing support
+#options ISO # OSI networking
+#options TPIP # TPIP
+#options EON # OSI tunneling over IP
+#options CCITT,LLC,HDLC # X.25
+
+# NetBSD backwards compatibility
+#options COMPAT_10 # NetBSD 1.0, (needed for X on 386?)
+#options COMPAT_11 # NetBSD 1.1,
+options COMPAT_12 # Netbsd 1.2 reboot()
+
+config netbsd root on ? type ?
+config nfsnetbsd root on ? type nfs
+
+
+########################################################################
+### I/O bus and device options ###
+########################################################################
+
+# No device supported.
+
+########################################################################
+# SCSI configuration #
+########################################################################
+
+########################################################################
+#
+# Device configuration
+#
+########################################################################
+
+vrip* at mainbus0
+#rtc* at vrip?
+vrrtc* at vrip?
+vrbcu* at vrip?
+#pcic* at vrip? addr 0x150003e0 addr2 0x10070000 size2 0x4000 intr 4
+pcic* at vrip? addr 0x150003e0 addr2 0x10070000 size2 0x4000 intr 8
+com* at vrip? addr 0x0C000000 intr 9
+options __NO_SOFT_SERIAL_INTERRUPT
+
+# PCMCIA bus support
+pcmcia* at pcic? controller ? socket ?
+
+# PCMCIA IDE disk
+wdc* at pcmcia? function ?
+wd* at wdc? channel ? drive ? flags 0x0000
+
+# ATAPI bus support
+atapibus* at wdc? channel ?
+
+########################################################################
+#
+# Pseudo devices
+#
+########################################################################
+
+pseudo-device loop 1 # network loopback
+#pseudo-device sl 4 # serial-line IP ports
+#pseudo-device ppp 2 # serial-line IP ports
+pseudo-device pty 64 # pseudo ptys
+#pseudo-device bpfilter 16 # packet filter ports
+#pseudo-device ipfilter # IP filter, NAT
+
+#pseudo-device vnd 4 # virtual disk ick
+#pseudo-device ccd 4 # concatenated disks
+pseudo-device md 1 # memory disk device (ramdisk)
+
+#pseudo-device rasterconsole 1 # NB: raster console requires "fb"
+#pseudo-device fb 1 # up to 3 framebuffers
+# rnd is EXPERIMENTAL
+#pseudo-device rnd # /dev/random and in-kernel generator
+
+pseudo-device biconsdev 1 # build-in console device
diff -ruN ../../../osrc/sys/arch/hpcmips/conf/files.hpcmips hpcmips/conf/files.hpcmips
--- ../../../osrc/sys/arch/hpcmips/conf/files.hpcmips Thu Apr 15 07:20:51 1999
+++ hpcmips/conf/files.hpcmips Wed May 12 11:32:30 1999
@@ -55,6 +55,10 @@
pseudo-device biconsdev
file arch/hpcmips/dev/biconsdev.c biconsdev needs-count
+# Memory Disk
+file arch/hpcmips/dev/md_root.c memory_disk_hooks
+major { md = 17 }
+
#
# Vr41x1 integrated peripherals
#
diff -ruN ../../../osrc/sys/arch/hpcmips/dev/md_root.c hpcmips/dev/md_root.c
--- ../../../osrc/sys/arch/hpcmips/dev/md_root.c Thu Jan 1 09:00:00 1970
+++ hpcmips/dev/md_root.c Wed May 12 10:29:31 1999
@@ -0,0 +1,87 @@
+/* $NetBSD: md_root.c,v 1.1 1998/11/17 22:41:06 jonathan Exp $ */
+
+/*
+ * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
+ * Copyright (c) 1995 Gordon W. Ross
+ * 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. 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.
+ */
+
+#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
+
+__KERNEL_RCSID(0, "$NetBSD: md_root.c,v 1.1 1998/11/17 22:41:06 jonathan Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/reboot.h>
+
+#include <dev/md.h>
+
+extern int boothowto;
+
+#ifndef MINIROOTSIZE
+#define MINIROOTSIZE 512
+#endif
+
+#define ROOTBYTES (MINIROOTSIZE << DEV_BSHIFT)
+
+/*
+ * This array will be patched to contain a file-system image.
+ */
+u_int32_t md_root_size = ROOTBYTES;
+char md_root_image[ROOTBYTES] = "|This is the root ramdisk!\n";
+
+/*
+ * This is called during autoconfig.
+ */
+void
+md_attach_hook(unit, md)
+ int unit;
+ struct md_conf *md;
+{
+
+ if (unit == 0) {
+ /* Setup root ramdisk */
+ md->md_addr = (caddr_t)md_root_image;
+ md->md_size = (size_t)md_root_size;
+ md->md_type = MD_KMEM_FIXED;
+ printf("md%d: internal %dK image area\n", unit,
+ ROOTBYTES / 1024);
+ }
+}
+
+/*
+ * This is called during open (i.e. mountroot)
+ */
+void
+md_open_hook(unit, md)
+ int unit;
+ struct md_conf *md;
+{
+
+ if (unit == 0) {
+ /* The root ramdisk only works single-user. */
+ boothowto |= RB_SINGLE;
+ }
+}
diff -ruN ../../../osrc/sys/arch/hpcmips/hpcmips/conf.c hpcmips/hpcmips/conf.c
--- ../../../osrc/sys/arch/hpcmips/hpcmips/conf.c Sun Apr 18 21:39:07 1999
+++ hpcmips/hpcmips/conf.c Wed May 12 11:34:20 1999
@@ -50,6 +50,8 @@
bdev_decl(wd);
#include "com.h"
cdev_decl(com);
+#include "md.h"
+bdev_decl(md);
struct bdevsw bdevsw[] =
{
@@ -70,7 +72,7 @@
bdev_notdef(), /* 14: rl */
bdev_notdef(), /* 15: tmscp */
bdev_notdef(), /* 16: cs */
-bdev_notdef(),/*bdev_disk_init(NMD,md),*/ /* 17: memory disk driver */
+ bdev_disk_init(NMD,md), /* 17: memory disk driver */
bdev_notdef(),/*bdev_tape_init(NST,st),*/ /* 18: st */
bdev_notdef(),/*bdev_disk_init(NSD,sd),*/ /* 19: sd */
bdev_notdef(),/*bdev_tape_init(NTZ, tz),*/ /* 20: tz */
@@ -106,6 +108,7 @@
cdev_decl(cn);
#include "biconsdev.h"
cdev_decl(biconsdev);
+cdev_decl(md);
#if (NDC_DS > 0) || (NDC_IOASIC > 0)
# define NDC 1
@@ -224,7 +227,7 @@
cdev_notdef(), /*cdev_lkm_init(NLKM,lkm),*/ /* 94: loadable module driver */
cdev_notdef(), /*cdev_scsibus_init(NSCSIBUS,scsibus),*/ /* 95: SCSI bus */
cdev_notdef(), /*cdev_disk_init(NRAID,raid),*/ /* 96: RAIDframe disk driver */
-cdev_notdef(), /*cdev_disk_init(NMD,md),*/ /* 97: memory disk driver */
+ cdev_disk_init(NMD,md), /* 97: memory disk driver */
cdev_tty_init(NBICONSDEV,biconsdev), /* 98: bicons pseudo-dev */
};