Commit Graph

277 Commits

Author SHA1 Message Date
Marcel Moolenaar
7fe0b4f160 Give loaders more control over the Forth initialization process. In
particular, allow loaders to define the name of the RC script the
interpreter needs to use. Use this new-found control to have the
PXE loader (when compiled with TFTP support and not NFS support)
read from ${bootfile}.4th, where ${bootfile} is the name of the
file fetched by the PXE firmware.

The normal startup process involves reading the following files:
1.  /boot/boot.4th
2.  /boot/loader.rc or alternatively /boot/boot.conf

When these come from a FreeBSD-defined file system, this is all
good. But when we boot over the network, subdirectories and fixed
file names are often painful to administrators and there's really
no way for them to change the behaviour of the loader.

Obtained from:	Juniper Networks, Inc.
2014-07-27 16:12:51 +00:00
Roger Pau Monné
f5417a03e3 don't set CR4 PSE bit on amd64
Setting PSE together with PAE or in long mode just makes the PSE bit
completely ignored, so don't set it.

Sponsored by: Citrix Systems R&D
Reviewed by: kib
2014-07-23 15:53:29 +00:00
Sean Bruno
38d02a94fa Supress clang warning for FreeBSD printf %b and %D formats
MFC after:	2 weeks
2014-07-22 04:37:47 +00:00
Roger Pau Monné
aa389b4f8c howto_names: unify declaration
Approved by: gibbs
Sponsored by: Citrix Systems R&D

boot/i386/efi/bootinfo.c:
boot/i386/libi386/bootinfo.c:
boot/ia64/common/bootinfo.c:
boot/powerpc/ofw/metadata.c:
boot/powerpc/ps3/metadata.c:
boot/sparc64/loader/metadata.c:
boot/uboot/common/metadata.c:
boot/userboot/userboot/bootinfo.c:
i386/xen/xen_machdep.c:
 - Include sys/boot.h
 - Remove custom definition of howto_names.

sys/boot.h:
 - Define howto_names.

x86/xen/pv.c:
 - Include sys/boot.h
2014-03-11 10:13:06 +00:00
Alexander Motin
75da4d0634 Make comconsole options set before its activation to be remembered.
MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2014-01-20 23:27:05 +00:00
Jung-uk Kim
2481ce2f25 Allow users to set UUID in network byte order regardless of SMBIOS version.
Define BOOT_NETWORK_ENDIAN_UUID in make.conf(5) to enable this feature.
2013-10-22 21:32:28 +00:00
Jung-uk Kim
ce7707b487 Set the hint for physical address of RSDP in hexadecimal as before r223262. 2013-08-23 18:52:36 +00:00
John Baldwin
44e54f208a Always update the hw.uart.console hint anytime a change is made to the
comconsole setup.  Previously the hint would be set when if you set a
custom port, but it would not be updated if you later set a custom speed.

Also, leave the hw.uart.console hint mutable so it can be overridden or
unset by the user if needed.

Reviewed by:	kib (earlier version)
MFC after:	1 week
2013-01-23 18:34:21 +00:00
Sean Bruno
b9fd59b70c Quiesce some clang warnings while we're here doing stuff.
Submitted by:	Hiren Panchasara <hiren.panchasara@gmail.com>
Obtained from:	Yahoo! Inc
2013-01-14 15:05:22 +00:00
Andrey V. Elsukov
9add094157 Add the flags parameter to the disk_open() function and DISK_F_NOCACHE
flag, that disables the caching of partition tables metadata.
Use this flag for floppies in the libi386/biosdisk driver.
2012-10-21 12:14:58 +00:00
Andriy Gapon
fdb3d7b169 i386 comconsole: don't loop forever if hardware doesn't respond
- clear capability flags when hw timeouts
- retire comc_started status variable and directly use c_flags to see
  if comconsole is selected for use

Reviewed by:	jhb
Tested by:	Uffe Jakobsen <uffe@uffe.org>,
		Olivier Cochard-Labbe <olivier@cochard.me>
MFC after:	26 days
2012-10-06 20:04:51 +00:00
Andrey V. Elsukov
f9cd8b07a4 Almost each time when loader opens a file, this leads to calling
disk_open(). Very often this is called several times for one file.
This leads to reading partition table metadata for each call. To
reduce the number of disk I/O we have a simple block cache, but it
is very dumb and more than half of I/O operations related to reading
metadata, misses this cache.

Introduce new cache layer to resolve this problem. It is independent
and doesn't need initialization like bcache, and will work by default
for all loaders which use the new DISK API. A successful disk_open()
call to each new disk or partition produces new entry in the cache.
Even more, when disk was already open, now opening of any nested
partitions does not require reading top level partition table.
So, if without this cache, partition table metadata was read around
20-50 times during boot, now it reads only once. This affects the booting
from GPT and MBR from the UFS.
2012-09-29 16:47:56 +00:00
Alexander Motin
a5174f1fb6 Make pxe device in lsdev really include device name, looking like this:
pxe0:    192.168.3.1:/storage/nfsroot/amd64
, instead of confusing and less useful:
      192.168.3.1:pxeboot
2012-09-12 21:00:37 +00:00
Dimitry Andric
6cad98e283 After r239066, reinitialize v86.ctl and v86.addr for int 13 EDD probing
in sys/boot/i386/libi386/biosdisk.c.  Otherwise, when DISK_DEBUG is
enabled, the DEBUG() macros will clobber those fields, and cause the
probing to always fail mysteriously when debugging is enabled.
2012-08-13 21:04:01 +00:00
Andrey V. Elsukov
777085904e Add another debug message. 2012-08-12 14:32:30 +00:00
Andrey V. Elsukov
a86f714d15 Add offset field to the i386_devdesc structure to be compatible with
disk_devdesc structure. Update biosdisk driver to the new disk API.
2012-08-05 14:37:48 +00:00
Kevin Lo
544c5e5b53 Make sure that each va_start has one and only one matching va_end,
especially in error cases.
2012-05-29 01:48:06 +00:00
Andriy Gapon
1702e62f67 zfsboot/zfsloader: support accessing filesystems within a pool
In zfs loader zfs device name format now is "zfs:pool/fs",
fully qualified file path is "zfs:pool/fs:/path/to/file"
loader allows accessing files from various pools and filesystems as well
as changing currdev to a different pool/filesystem.

zfsboot accepts kernel/loader name in a format pool:fs:path/to/file or,
as before, pool:path/to/file; in the latter case a default filesystem
is used (pool root or bootfs).  zfsboot passes guids of the selected
pool and dataset to zfsloader to be used as its defaults.

zfs support should be architecture independent and is provided
in a separate library, but architectures wishing to use this zfs support
still have to provide some glue code and their devdesc should be
compatible with zfs_devdesc.
arch_zfs_probe method is used to discover all disk devices that may
be part of ZFS pool(s).

libi386 unconditionally includes zfs support, but some zfs-specific
functions are stubbed out as weak symbols.  The strong definitions
are provided in libzfsboot.
This change mean that the size of i386_devspec becomes larger
to match zfs_devspec.

Backward-compatibility shims are provided for recently added sparc64
zfs boot support.  Currently that architecture still works the old
way and does not support the new features.

TODO:
- clear up pool root filesystem vs pool bootfs filesystem distinction
- update sparc64 support
- set vfs.root.mountfrom based on currdev (for zfs)

Mid-future TODO:
- loader sub-menu for selecting alternative boot environment

Distant future TODO:
- support accessing snapshots, using a snapshot as readonly root

Reviewed by:	marius (sparc64),
		Gavin Mu <gavin.mu@gmail.com> (sparc64)
Tested by:	Florian Wagner <florian@wagner-flo.net> (x86),
		marius (sparc64)
No objections:	fs@, hackers@
MFC after:	1 month
2012-05-12 09:03:30 +00:00
Andriy Gapon
a45337f99f i386 boot: consolidate MAXBDDEV definition
MFC after:	1 month
2012-05-09 08:05:50 +00:00
Jung-uk Kim
c2d486714d Fix a long standing bug. The caller expects a non-zero value for success.
Luckily keyboard probing was turned off by default from the first revision.

Submitted by:	Alexander Sack (asack at niksun dot com)
MFC after:	3 days
2012-02-29 18:11:33 +00:00
Dimitry Andric
07b202a847 Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to
get rid of testing explicitly for clang (using ${CC:T:Mclang}) in
individual Makefiles.

Instead, use the following extra macros, for use with clang:
- NO_WERROR.clang       (disables -Werror)
- NO_WCAST_ALIGN.clang  (disables -Wcast-align)
- NO_WFORMAT.clang	(disables -Wformat and friends)
- CLANG_NO_IAS		(disables integrated assembler)
- CLANG_OPT_SMALL	(adds flags for extra small size optimizations)

As a side effect, this enables setting CC/CXX/CPP in src.conf instead of
make.conf!  For clang, use the following:

CC=clang
CXX=clang++
CPP=clang-cpp

MFC after:	2 weeks
2012-02-28 18:30:18 +00:00
Sean Bruno
811e96eaad Wrap changes from svn r212126 inside LOADER_NFS_SUPPORT such that
using LOADER_TFTP_SUPPORT excludes this code.  Fixes compilation of pxeldr
with -DLOADER_TFTP_SUPPORT

Applicable to stable/9 and stable/8 now.

This appears to not be needed on stable/7 as r212126 has not been MFC'd.

Obtained from:	Yahoo! Inc.
MFC after:	2 weeks
2012-01-19 01:25:50 +00:00
Konstantin Belousov
5a1e37174f Add special loader environment variables 'comconsole_port' and
'comconsole_pcidev'. The former allows to set the base address of the
serial console i/o port. The later takes the string of the format
'bus:device:function:[bar]' as a value and uses the serial port attached
as PCI device at the specified location for console.

Both variants pass 'hw.uart.console' variable to the uart driver to
properly hand-over the kernel console.

Change allows to use ISA serial ports other than COM1 for the
loader/kernel console without loader recompilation. Also, you can use
PCI-attached port as the console, e.g. Intel AMT serial pseudo-port on
some motherboards based on Q67 chipset.

Reviewed by:	jhb
MFC after:	2 weeks
2012-01-03 22:36:12 +00:00
Ed Schouten
39154992db Make the RTC checking for QEMU even more aggressive.
At work, where we use use KVM+QEMU, we notice that pxeboot is pratically
impossible because of network timeouts. This is due to the fact that the
RTC code makes aggressive jumps.

Two RTC reads does not seem to be sufficient. Change the code to check
for 8 identical RTC values.

Sponsored by:	Kumina bv
2011-12-21 16:47:01 +00:00
John Baldwin
f43fc3fc9d Revert some debugging printfs that crept into 223695. 2011-11-09 14:37:47 +00:00
John Baldwin
5b9e248af5 - Add a new header for the x86 boot code that defines various structures
and constants related to the BIOS Enhanced Disk Drive Specification.
- Use this header instead of magic numbers and various duplicate structure
  definitions for doing I/O.
- Use an actual structure for the request to fetch drive parameters in
  drvsize() rather than a gross hack of a char array with some magic
  size.  While here, change drvsize() to only pass the 1.1 version of
  the structure and not request device path information.  If we want
  device path information you have to set the length of the device
  path information as an input (along with probably checking the actual
  EDD version to see which size one should use as the device path
  information is variable-length).  This fixes data smashing problems
  from passing an EDD 3 structure to BIOSes supporting EDD 4.

Reviewed by:	avg
Tested by:	Dennis Koegel  dk neveragain.de
MFC after:	1 week
2011-10-25 19:54:06 +00:00
John Baldwin
4f88092408 Consolidate duplicate definitions of V86_CY() and V86_ZR() which check for
the carry and zero flags being set, respectively, in <btxv86.h> and use
them throughout the x86 boot code.
2011-10-25 19:45:12 +00:00
Doug Rabson
9777aa3f12 Add a version of the FreeBSD bootloader which can run in userland, packaged
as a shared library. This is intended to be used by BHyVe to load FreeBSD
kernels into new virtual machines.
2011-06-30 16:08:56 +00:00
Ben Laurie
5f301949ef Fix clang warnings.
Approved by:	philip (mentor)
2011-06-18 13:56:33 +00:00
Dimitry Andric
2754fe609d Upgrade our copy of llvm/clang to r126079, from upstream's trunk.
This contains many improvements, primarily better C++ support, an
integrated assembler for x86 and support for -pg.
2011-02-20 19:33:47 +00:00
Yoshihiro Takahashi
57c70558ed Remove unused includes. 2010-11-13 15:23:20 +00:00
John Baldwin
6c96352a06 Remove support for autoloading ACPI from the loader. Leave in the code to
detect ACPI and export info such as the location of the RSDP via hints as
that is still useful.
2010-11-08 21:50:45 +00:00
Pawel Jakub Dawidek
1d09a9b999 Before VirtualBox is fixed, mark with #ifdef what has to be done to make
it possible to boot from ZFS RAIDZ for example from within VirtualBox.
The problem with VirtualBox is that its BIOS reports only one disk present.
If we choose to ignore this report, we can find all the disks available.
We can't have this work-around to be turned on by default, because some broken
BIOSes report true when it comes to number of disks, but present the same disk
multiple times.
2010-09-17 22:59:15 +00:00
Rick Macklem
4176401397 Modify pxe.c to use the version of nfs_getrootfh() that returns
the file handle's size and was recently committed to
lib/libstand/nfs.c. This allows pxeboot to use NFSv3 and work
correcty for non-FreeBSD as well as FreeBSD NFS servers.
If built with OLD_NFSV2 defined, the old
code that predated this patch will be used.

Tested by:	danny at cs.huji.ac.il
2010-09-02 01:05:10 +00:00
Warner Losh
5aae6977bc MF tbemd: Minor tweaks, prefer MACHINE_CPUARCH generally to MACHINE_ARCH 2010-08-23 01:42:09 +00:00
Yoshihiro Takahashi
ef7b7ac106 Fix debug messages of bd_io().
MFC after:	1 week
2009-12-17 13:14:11 +00:00
John Baldwin
e85b664cd2 Don't warn about an RSDP with a corrupt checksum. The kernel does a better
job about warning about these things later and this message can be
confusing.

Submitted by:	infofarmer
MFC after:	1 week
2009-12-10 14:54:29 +00:00
John Baldwin
f1a6fd5d07 Improve the algorithm the loader uses to choose a memory range for its
heap when using a range above 1MB.

Previously the loader would always use the last 3MB in the first memory
range above 1MB for the heap.  However, this memory range is also where the
kernel and any modules are loaded.  If this memory range is "small", then
using the high 3MB for the heap may not leave enough room for the kernel
and modules.

Now the loader will use any range below 4GB for the heap, and the logic to
choose the "high" heap region has moved into biosmem.c.  It sets two
variables that the loader can use for a high heap if it desires.  When a
high heap is enabled (BZIP2, FireWire, GPT, or ZFS), then the following
memory ranges are preferred for the heap in order from best to worst:
- The largest memory region in the SMAP with a start address greater than
  1MB.  The memory region must be at least 3MB in length.  This leaves the
  region starting at 1MB purely for use by the kernel and modules.
- The last 3MB of the memory region starting at 1MB if it is at least 3MB
  in size.  This matches the current behavior except that the current loader
  would break horribly if the first region was not at least 3MB in size.
- The memory range from the end of the loader up to the 640k window.  This
  is the range the loader uses when none of the high-heap-requesting options
  are enabled.

Tested by:	hrs
MFC after:	1 week
2009-12-07 16:29:43 +00:00
John Baldwin
eddb3f5b88 Various small whitespace and style fixes. 2009-12-07 16:00:59 +00:00
Maxim Sobolev
12ff431c6c Whitespace-only: another instance of identation with spaces. 2009-11-27 04:00:52 +00:00
Maxim Sobolev
8e67cba0d8 Whitespace on: use tabs for identation consistently. 2009-11-27 03:58:21 +00:00
Maxim Sobolev
c4c3b35172 Add new loader console type: "spinconsole". This console selects the
video console which doesn't take any input from keyboard and hides
all output replacing it with ``spinning'' character (useful for
embedded products and custom installations).

Sponsored by:	Sippy Software, Inc.
2009-11-27 03:55:42 +00:00
Edward Tomasz Napierala
27565a4094 Be nice, don't use the f-word. 2009-11-25 16:36:07 +00:00
Ed Maste
58564ca597 If the pxe client is told to use / as the root path, honour that rather
of trying to mount /pxeroot instead.

PR:		i386/106493
Submitted by:	Andrey Russev
MFC after:	1 month
2009-09-10 22:05:43 +00:00
Rui Paulo
1e5fd3f467 On special systems where the MBR and the GPT are in sync (up to the 4th
slicei, Apple EFI hardware), the bootloader will fail to recognize the GPT
if it finds anything else but the EFI partition. Change the check to continue
detecting the GPT by looking at the EFI partition on the MBR but
stopping successfuly after finding it.

PR:		kern/134590
Submitted by:	Christoph Langguth <christoph at rosenkeller.org>
Reviewed by:	jhb
MFC after:	2 weeks
Approved by:	re (kib)
2009-06-26 09:32:31 +00:00
John Baldwin
0cf7495c65 Instead of packing the individual fields in the PnP structures, pack the
entire structures.  This trims some warnings.

Verified by:	md5(1)
MFC after:	1 week
2009-06-08 15:09:22 +00:00
John Baldwin
2a4eff4703 Don't attempt to free the GPT partition list for a disk with an empty GPT.
Submitted by:	Yuri Pankov  yuri.pankov of gmail
MFC after:	3 days
2009-06-08 15:07:35 +00:00
Jung-uk Kim
129d3046ef Import ACPICA 20090521. 2009-06-05 18:44:36 +00:00
John Baldwin
4fdf20550c Add a missing parameter when displaying GPT partitions with an unknown
UUID.

Submitted by:	Pawel Worach  pawel.worach | gmail
MFC after:	1 week
2009-06-01 14:20:13 +00:00
Jung-uk Kim
cebe9dc98a A simple rewrite of biossmap.c:
- Do not iterate int 15h, function e820h twice.  Instead, we use STAILQ to
store each return buffer and copy all at once.
- Export optional extended attributes defined in ACPI 3.0 as separate
metadata.  Currently, there are only two bits defined in the specification.
For example, if the descriptor has extended attributes and it is not
enabled, it has to be ignored by OS.  We may implement it in the kernel
later if it is necessary and proven correct in reality.
- Check return buffer size strictly as suggested in ACPI 3.0.

Reviewed by:	jhb
2009-04-15 17:31:22 +00:00