Commit Graph

239 Commits

Author SHA1 Message Date
ps
bdc51eda06 Use !PXE api over PXENV+ api.
Magic trampoline by: peter (at 4am and after a good whipping at airhockey)
Do a better job of returning and detecting errors.
2000-04-19 11:22:38 +00:00
jhb
2ac8d6674b Add a missing dependency: boot2 depends on the BTX kernel. 2000-04-11 14:49:13 +00:00
jkh
c5bf423390 Nuke duplicate struct declaration from somebody's paste-o 2000-04-08 22:50:18 +00:00
ps
baa52b87aa Make PXE use the UDP API. This allows for both TFTP and NFS support.
You may specify TFTP or NFS via compile time options in the loader,
but not both at this time.

Also, remove a warning about not knowing how to boot from network
devices.  We can obviously do that now.
2000-04-08 01:22:14 +00:00
ps
4cd167b447 Add a missing PXE API call and structure. 2000-04-04 07:28:54 +00:00
ps
0ddd73d45f Add all the PXE related structures from the 2.1 PXE spec from Intel.
Fix exsisting code to match the spec.
2000-04-04 00:38:59 +00:00
jhb
528aa61b66 Mega i386 loader commit.
- Don't hard code 0x10000 as the entry point for the loader.  Instead add
  src/sys/boot/i386/Makefile.inc which defines a make variable with the
  entry point for the loader.  Move the loader's entry point up to
  0x20000, which makes PXE happy.
- Don't try to use cpp to parse btxldr for the optional BTXLDR_VERBOSE,
  instead use m4 to achieve this.  Also, add a BTXLDR_VERBOSE knob in the
  btxldr Makefile to turn this option on.
- Redo parts of cdldr's Makefile so that it now builds and installs cdboot
  instead of having i386/loader/Makefile do that.  Also, add in some more
  variables to make the pxeldr Makefile almost identical and thus to ease
  maintainability.
- Teach cdldr about the a.out format.  Cdldr now parsers the a.out header
  of the loader binary and relocates it based on that.  The entry point of
  the loader no longer has to be hardcoded into cdldr.  Also, the boot
  info table from mkisofs is no longer required to get a useful cdboot.
- Update the lsdev function for BIOS disks to parse other file systems
  (such as DOS FAT) that we currently support.  This is still buggy as
  it assumes that a floppy with a DOS boot sector actually has a MBR and
  parses it as such.  I'll be fixing this in the future.
- The biggie:  Add in support for booting off of PXE-enabled network
  adapters.  Currently, we use the TFTP API provided by the PXE BIOS.
  Eventually we will switch to using the low-level NIC driver thus
  allowing both TFTP and NFS to be used, but for now it's just TFTP.

Submitted by:	ps, alfred
Testing by:	Benno Rice <benno@netizen.com.au>
2000-03-28 01:19:53 +00:00
jhb
0615421c40 Remove some extra spammage that made it into this commit. This will be
revisited later with a better fix, or at least one that compiles. :)

Approved by:	dcs
2000-03-15 16:36:55 +00:00
dcs
a18025220f Pass an unit number to bcache_strategy, so it can flush the cache when
necessary. Pass an absolute block number too, instead of receiving a
relative one in realstrategy(), as bcache_strategy() requires this.

The fix is sligthly different from the one in the PR.

PR:		17098
Submitted by:	John Hood <jhood@sitaranetworks.com>
2000-03-15 01:58:45 +00:00
jhb
05ac7ac6bf This patch to BTX fixes several small things:
1) Fix a bug in the int15 function 87 emulation where we only copied half
   of what the BIOS asked for.  This caused the Mylex RAID adapter to go
   haywire and start trashing memory when you tried to boot from it.
2) Don't use interrupt 19 to reboot.  Instead, set the reboot flag to a warm
   boot and jump to the BIOS's reboot handler.  int 19 doesn't clear memory
   or restore the interrupt vector table, and thus really isn't safe.  For
   example, when booting off of PXE, the PXE BIOS eats up a chunk of memory
   for its internal data and structures.  Since we rebooted via int 19,
   using the 'reboot' command in the loader resulted in that memory not
   being reclaimed by the BIOS.  Thus, after a few PXE boots, the system
   was out of lower memory.
3) Catch any int 19 calls made by a BTX client or a user pressing
   Ctrl-Alt-Delete and shutdown BTX and reboot the machine cleanly.  This
   fixes Ctrl-Alt-Delete in the loader and in boot2 instead of presenting
   the user with a BTX fault.

Approved by:	jkh
Found by:	1) by msmith
2000-02-16 07:00:16 +00:00
ru
4b1fee2e59 Support the new ata(4) syntax, while providing backward compatibility for wd(4).
Reviewed by:	jkh, msmith, sos
Approved by:	jkh
2000-02-09 19:23:46 +00:00
luigi
0e62e2011b Add a NOFORTH variable so we can build a smaller loader without
Forth support, for use with PicoBSD

Approved-By: jordan
2000-02-04 20:57:09 +00:00
jhb
f14425e1c7 Fix bogon in previous commit. Re-enable Forth in the loader.
Noticed by:	dcs
Approved by:	jkh
2000-01-30 06:56:27 +00:00
jhb
ecc56c784b Allow for cdldr to be built in ${.OBJDIR}/../cdldr/cdldr instead of
only looking for it in ${.CURDIR}/../cdldr/cdldr.  This fixes world.
2000-01-28 15:19:22 +00:00
jhb
372aab7cb7 Add the new cdldr CD bootstrap loader. This patch includes the following:
- Fix btxldr to preserve a NULL bootinfo pointer when it copies the kernel
  arguments.
- Add the cdldr bootstrap program.  This program is tacked onto the
  beginning of the standard 3rd stage boot loader (/boot/loader) to form
  the CD boot loader (/boot/cdboot).  When a CD is booted, the cdboot file
  is copied into memory instead and executed.  The cdldr stub emulates the
  environment normally provided by boot2 and then starts the loader.  This
  booting method does not emulate a floppy drive, but boots directly off of
  the CD.  This should fix the problems some BIOS's have with emulating a
  2.88 MB floppy image.
- Add support to the loader to recognize that it has been booted by cdldr
  instead of boot2 and use a simpler method of extracting the BIOS boot
  device.
2000-01-27 21:21:01 +00:00
jhb
30f3b614b3 Fix brokenness introduced with the PAGING conditional variable. The value
of %cr0 wasn't reloaded into %eax before being modified to turn protected
mode off if PAGING was not defined.  The result was that the processor did
not exit protected mode, so when it tried to jump to segment 0x0 in the
next instruction to clear the prefetch cache like one should when leaving
protected mode, it actually tried to jump to a null selector, causing a
GPF.
2000-01-27 21:06:13 +00:00
msmith
95aaaf1f16 Substantially revamp the way that we determine the amount of memory available
for our use.  Use the same search order for BIOS memory size functions
as the kernel will later use.

Allow the loader to use all of the detected physical memory (this will
greatly help people trying to load enormous memory disk images).

More correctly handle running out of memory when loading an object.

Use the end of base memory for the top of the heap, rather than
blindly hoping that there is 384k left.

Add copyrights to a couple of files I forgot.
1999-12-29 09:54:46 +00:00
phk
551bfa2f51 Remove BAD144 support, it has already been disabled for some time. 1999-12-08 09:33:00 +00:00
dcs
092552dc2c Add machine-specific include path to ficl's sysdep.h. Wishes I had
gone to bed earlier.

Pointed by: peter
1999-11-23 16:30:48 +00:00
obrien
48ebb77e0e Add -fdata-sections, which is a new GCC 2.95 optimization. Remove
-fschedule-insns as it wasn't such a big win with 2.95 after all.

Add the *BIG* win "-mpreferred-stack-boundary=2" optimiztion submitted by
Dima.  GCC 2.95 ensures the stack frame is always properly [opitimally]
aligned by surrounding every function call by code simular to
"addl $-12, %esp" / "addl $12, %esp".  Here we need the reduction in space,
with speed not an issue.
1999-11-15 04:23:40 +00:00
obrien
b3fde7d733 Return this file to its pre-spammed version. Thanks to some new compiler
optimizations, we can go from 3 bytes free with the spammed version, to
279 bytes free with the full version.
1999-11-14 22:17:06 +00:00
obrien
b6bb24fced Enter complier upgrade mode again. We need to cut 169 bytes from this:
Remove some printf() calls, reduce size of buffers, and abbreviate
	some strings.

Hopefully the boot people will fix this spamage after the cut over to
Gcc 2.95.2 as the system compiler.
1999-11-14 00:41:54 +00:00
obrien
aaa5ed29fd Turn on the -fforce-addr and -fschedule-insns optimizations. Adding
either one gives us an additional 32 bytes of additional space available
when using EGCS 1.1.2.  With GCC 2.95.2 -fforce-addr gives us 12 more bytes,
and adding -fschedule-insns gives us an additional 4 bytes.
1999-11-13 23:08:46 +00:00
jhb
281681d59f If PAGING is defined then actually turn it on when entering protected
mode.
1999-10-27 02:22:52 +00:00
dcs
caa1d92529 Make the "machine" target a prequisite to all source files.
Hinted-at by: bde
1999-10-19 03:53:59 +00:00
jhb
b203e98b2b aThis patch updates the BTX to emulate the BIOS function "Copy Extended
Memory" called as function 0x87 of interrupt 0x15.  Since the Mylex RAID
adapter's BIOS used this function to access memory (actually PCI bus
space) beyond 16 MB, this patch also allows BTX to address all 4 Gig of
possible address space on i386+.  Since the loader does not have room for
4 MB of page tables, this was done by turning off paging.

Paging was turned off via a compile time setting which defaults to off.
To enable paging, simply define the make variable PAGING.

rnordier might want to clean this up later.

Submitted by:	W. Gerald Hicks <wghicks@bellsouth.net>,
		Bosko Milekic <bmilekic@ares.dsuper.net>
Reviewed by:	msmith
Required by:	Mylex RAID adapter's BIOS
1999-10-12 21:33:49 +00:00
brian
58eae5b556 Blank out the twiddly thing when outputting the ``BTX loader'' message. 1999-10-12 06:57:26 +00:00
julian
974aea3e4c Remove accidental cut&paste garbage in a comment. 1999-09-03 01:38:29 +00:00
julian
082c01dec6 Comment the boot manager. So I don't have to work it all out again :-)
Reviewed by:	rnordier@freebsd.org
1999-09-03 01:35:06 +00:00
peter
3b842d34e8 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
nik
af96d3ba77 Fix some typos.
PR:             docs/11955
Submitted by:   Christian Weisgerber <naddy@mips.rhein-neckar.de>
1999-07-28 20:30:59 +00:00
rnordier
558efd38f3 Recognise NetBSD slices.
Submitted by : Lars Koeller <lkoeller@cc.fh-lippe.de>
PR           : 12772
1999-07-24 17:40:40 +00:00
msmith
22f56109ba Walk around the end of all the silly guessing of device types and unit
numbers that we have been doing in the past, and read /etc/fstab off the
proposed root filesystem to determine the actual device name and vfs
type for the root filesystem.  These are then exported to the kernel
via the environment variable vfs.root.mountfrom.
1999-07-21 00:08:54 +00:00
rnordier
c1740a7c66 Reintroduce LBA (cyl > 1023) support in the bootblocks, enabled by
means of a build option.
1999-07-20 01:19:23 +00:00
rnordier
c46ca64645 Activate kgzldr. 1999-07-19 20:16:34 +00:00
rnordier
83fed33cb1 Use M4FLAGS for m4. 1999-07-19 20:10:17 +00:00
rnordier
2d7803cd6b This commit was generated by cvs2svn to compensate for changes in r48907,
which included commits to RCS files with non-trunk default branches.
1999-07-19 18:07:44 +00:00
rnordier
f5a2fbe418 kgzldr is a kzipboot replacement for use with kgzip(8).
Development sponsored by Global Technology Associates, Inc.

Reviewed/tested by: abial
1999-07-19 18:07:44 +00:00
peter
8fd8236771 Reconcile all the loader newvers.sh's into one common one. 1999-06-29 21:23:26 +00:00
ru
1e7459a41e -mdoc fix. 1999-06-23 09:06:18 +00:00
rnordier
0571a0f633 Fill in bi_bios_geom[] in the bootinfo structure passed to the kernel.
This should resolve the problem raised in PR 12315, and incidentally
makes it easier to determine what geometry the BIOS is actually using
(by way of boot -v and dmesg).
1999-06-21 18:27:02 +00:00
rnordier
156dba23c0 Provide for enabling/disabling each slice individually. 1999-06-19 21:40:55 +00:00
rnordier
f3313ef5a0 Fix use of e_phoff in place of e_phnum. 1999-06-19 20:50:38 +00:00
rnordier
5f25113ddb Correct and clarify some comments. 1999-06-19 20:40:32 +00:00
rnordier
517a8eacaf Change active flag handling; sanity check passed drive number; pass
partition pointer to bootstrap; optimise away 10 bytes; cosmetics.
1999-06-18 21:49:18 +00:00
ghelmer
b7771a65a4 Modify the boot loader to recognize the -C flag and pass the RB_CDROM
flag to the kernel to mount a CDROM as the root filesystem.  Alternatively,
the boot_cdrom env var can be set.

As Mike Smith noted, "-C is the "wrong" way to do this", but this is
an acceptable stopgap in lieu of a better way.

PR:		bin/11884
Reviewed by:	msmith@freebsd.org
1999-06-04 03:18:28 +00:00
rnordier
ebabc28d79 Activate mbr. 1999-05-24 22:44:32 +00:00
rnordier
32c4cd5138 Add mbr: a standard master boot record intended to replace a couple
that are presently embedded in the fdisk and sysinstall code.
1999-05-24 22:36:24 +00:00
rnordier
baab5b9100 This commit was generated by cvs2svn to compensate for changes in r47471,
which included commits to RCS files with non-trunk default branches.
1999-05-24 22:36:24 +00:00
rnordier
c7b7a58ae1 Fix a reference to the mysterious Mike Smisth. 1999-05-22 13:18:28 +00:00