Commit Graph

2275 Commits

Author SHA1 Message Date
Dimitry Andric
f989887b32 Fix buffer overflow in sys/boot/common/util.c's printf(), when printing
large (>= 10^10) numbers.  In theory, 20 characaters should be enough,
but bump the buffer to 32 characters, so we have some room for the
future.

Reviewed by:	pjd
Approved by:	re (kib)
2011-08-08 20:53:04 +00:00
Craig Rodrigues
ded85b3037 Document the tftp.blksize variable added in src/lib/libstand/tftp.c.
Approved by: re	(kib)
Requested by: maxim
2011-07-25 21:52:17 +00:00
John Baldwin
7b4f570ca1 Note that the "kernel" variable in loader.conf is the name of a directory
containing a kernel under /boot and that it's default value is "kernel"
not "/boot/kernel/kernel".

PR:		docs/158992
Reported by:	Wayne Mitchell  wayne.mitchell.iz at gmail
Approved by:	re (kib)
MFC after:	1 week
2011-07-20 15:18:24 +00:00
Dimitry Andric
ce3fb79719 When building some of the boot loaders with clang, and DEBUG_FLAGS or
CFLAGS having '-g' in it, clang outputs several assembly directives that
are too new for our version of binutils.

Therefore, assemble the resulting .s files with clang instead.  A more
general solution can be implemented when a GNU as-compatible driver for
clang's integrated assembler appears.

Reported by:	dougb
2011-07-17 13:50:21 +00:00
Nathan Whitehorn
f683b68e5a Add support for booting PS3s from disk. This is still a little hackish until
we can find a way to get the information from petitboot or to guess it, so
the current algorithm is:

1. See if ps3disk3p1 (first GPT slice on OtherOS partition) exists, and if
   so try to boot it.
2. Otherwise, netboot.

Submitted by:	glevand <geoffrey.levand at mail dot ru >
2011-07-16 19:01:09 +00:00
Marius Strobl
fd70297a1d Since r219452 the alignment of __dmadat has changed, revealing that fsread()
bogusly casts its contents around causing alignment faults on sparc64 and
most likely also on at least powerpc. Fix this by copying the contents
bytewise instead as partly already done here. Solving this the right way
costs some space, i.e. 148 bytes with GCC and 16 bytes with clang on x86
there are still some bytes left there though, and an acceptable hack which
tricks the compiler into only using a 2-byte alignment instead of the native
one when accessing the contents turned out to even take up more space that.
2011-07-11 20:43:59 +00:00
Marius Strobl
4a35efc720 - For Cheetah- and Zeus-class CPUs don't flush all unlocked entries from
the TLBs in order to get rid of the user mappings but instead traverse
  them an flush only the latter like we also do for the Spitfire-class.
  Also flushing the unlocked kernel entries can cause instant faults which
  when called from within cpu_switch() are handled with the scheduler lock
  held which in turn can cause timeouts on the acquisition of the lock by
  other CPUs. This was easily seen with a 16-core V890 but occasionally
  also happened with 2-way machines.
  While at it, move the SPARC64-V support code entirely to zeus.c. This
  causes a little bit of duplication but is less confusing than partially
  using Cheetah-class bits for these.
- For SPARC64-V ensure that 4-Mbyte page entries are stored in the 1024-
  entry, 2-way set associative TLB.
- In {d,i}tlb_get_data_sun4u() turn off the interrupts in order to ensure
  that ASI_{D,I}TLB_DATA_ACCESS_REG actually are read twice back-to-back.

Tested by:      Peter Jeremy (16-core US-IV), Michael Moll (2-way SPARC64-V)
2011-07-02 11:14:54 +00:00
Marius Strobl
7d7a4ae1a7 Fix r223695 to compile on architectures which don't use the MBR scheme; wrap
the MBR support in the common part of the loader in #ifdef's and enable it
only for userboot for now.
2011-07-01 18:31:59 +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
John Baldwin
bda6775d59 Revert the entry point label to 'start' to unbreak the build.
Pointy hat to:	jhb
2011-06-27 21:43:56 +00:00
John Baldwin
4c7b01b9f8 - Remove the fake BPB from zfsldr. zfsldr doesn't support booting from
floppies, so it will not be used as the start of an emulated floppy
  image on a bootable CD which is what the fake BPB was used for.
- Only check that EDD packet mode is available once at the start of
  zfsldr rather than for each disk sector now that we read data in one
  sector at a time.  As a result, collapse the remaining bits of read
  up into nread and rename nread to read.
- Restore a return at the end of putstr that I removed in the previous
  revision.

Tested by:	Henri Hennebert (earlier version)
MFC after:	1 week
2011-06-27 13:58:24 +00:00
Marius Strobl
01ecc0328d As with EFI, OFW and U-Boot etc only compile FDT support on those
architectures that actually use it.
2011-06-25 16:01:45 +00:00
John Baldwin
e1b4a23921 The recent change to increase the zfsboot size to 64k made a few BIOSes
unhappy (probably they don't handle crossing the 64k boundary, etc.).
Fix this by changing zfsldr to use a loop reading from the disk one
sector at a time.  To avoid trashing the saved copy of the MBR which is
used for disk I/O, read zfsboot2 at address 0x9000.  This has the
advantage that BTX no longer needs to be relocated as it is read into
the correct location.  However, the loop to relocate zfsboot2.bin can
now cross a 64k boundary, so change it to use relative segments instead.
(This will need further work if zfsboot2.bin ever exceeds 64k.)

While here, stop storing a relocated copy of zfsldr at 0x700.  This was
only used by the xread hack which has recently been removed (and even
that use was dubious).  Also, include the BIOS error code as hex when
reporting read errors to aid in debugging.

Much thanks to Henri Hennebert for patiently testing various iterations
of the patch as well as fixing the zfsboot2.bin relocation to use
relative segments.

MFC after:	1 week
2011-06-23 15:53:17 +00:00
Alexander Kabaev
e1e52afa08 Minimize backward seeks when trying to load ELF relocatable modules.
Some of loader filesystems are very ill equipped to handle seeking
backwards within the file. Namely, tftp requires trasfer to be
restarted from the start of the file every time we go backwards.
2011-06-19 13:35:41 +00:00
Ben Laurie
5f301949ef Fix clang warnings.
Approved by:	philip (mentor)
2011-06-18 13:56:33 +00:00
Nathan Whitehorn
5f3c4bd1d7 Revert changes to this file in r222417. This unconditionally enabled the
boot menu on all platforms, which breaks loader completely on at least
powerpc for reasons that are not understood yet.

Reviewed by:	Devin Teske
2011-06-15 14:07:16 +00:00
Dimitry Andric
bd5abe1968 Upgrade our copy of llvm/clang to r132879, from upstream's trunk. 2011-06-12 18:01:31 +00:00
Marcel Moolenaar
9f11397eb5 o Bump the EFI loader version to 3.1.
o   Add the about, pbvm and reboot commands.
o   Trim the banner (suppress maker and date).
2011-06-07 00:59:31 +00:00
Marcel Moolenaar
6d48fab9c5 Add ia64_sync_icache() and use it to make the I-cache coherent
after loading the kernel's text segment. The kernel will do the
same for loaded modules, so don't worry about that.
2011-06-07 00:39:15 +00:00
Ulrich Spörlein
b2e52ced25 mdoc: fix markup 2011-06-02 09:56:42 +00:00
Julian Elischer
9d4a4b2a03 Include forgotten framework changes to get some of the new menu files installed correctly on non x86/amd systems.
pointy-hut to  devin
2011-05-30 04:23:33 +00:00
Andreas Tobler
c931ccf1b0 Add some missing files. Without we hang in the OF prompt asking for screen.4th.
Approved by:	nwhitehorn (mentor)
2011-05-29 14:27:11 +00:00
Julian Elischer
802e09ac9e New boot loader menus from Devin Teske.
Discussed on hackers and recommended for inclusion into 9.0 at the devsummit.
All support email to devin   dteske at vicor dot ignoreme dot com .

Submitted by:	dteske at vicor dot ignoreme dot com
Reviewed by:	me and many others
2011-05-28 08:50:38 +00:00
Attilio Rao
4b547324c0 Disconnect sun4v architecture from the three.
Some files keep the SUN4V tags as a code reference, for the future,
if any rewamped sun4v support wants to be added again.

Reviewed by:	marius
Tested by:	sbruno
Approved by:	re
2011-05-14 01:53:38 +00:00
Andriy Gapon
4fe5d78a0f a whitespace nit
Reminder from:	kib
MFC after:	4 days
2011-05-07 13:57:30 +00:00
Andriy Gapon
ff98e4c515 a whitespace nit
MFC after:	4 days
2011-05-07 10:40:57 +00:00
Dimitry Andric
7798640d82 Fine-tune llvm optimization for sys/boot/i386/boot2, which shaves off
some more bytes from the final boot2 image.

Submitted by:	rdivacky
2011-05-05 18:47:24 +00:00
Marcel Moolenaar
e94b542e02 Fix corner case where the size is a power of two. 2011-05-03 01:43:04 +00:00
Dimitry Andric
3cd306b555 Clang r130700 can now compile sys/boot/i386/boot2 with room to spare. 2011-05-02 21:13:08 +00:00
Marcel Moolenaar
c989b08beb Turn PBVM page table entries into PTEs so that they can be inserted
into the TLB as-is.

While here, have ia64_platform_alloc() return ~0UL on failure.
2011-04-30 20:16:49 +00:00
John Baldwin
ed10c810db Due to space constraints, the UFS boot2 and boot1 use an evil hack where
boot2 calls back into boot1 to perform disk reads.  The ZFS MBR boot blocks
do not have the same space constraints, so remove this hack for ZFS.
While here, remove commented out code to support C/H/S addressing from
zfsldr.  The ZFS and GPT bootstraps always just use EDD LBA addressing.

MFC after:	2 weeks
2011-04-28 17:44:24 +00:00
Andrey V. Elsukov
9c3523e7c5 Remove all object files during 'make clean'.
MFC after:	1 week
2011-04-21 14:17:36 +00:00
Yoshihiro Takahashi
59707f16bd MFi386: revisions 220389 and 220392
- Mark getc() as inline, this has no effect on gcc but helps clang.
  - Move getc() body before xgetc() so gcc does not emit a warning about
    function having no body.
2011-04-16 06:20:49 +00:00
Philip Paeps
b0321bb1e7 Add basic support for the Marvell Orion TS-7800.
Submitted by:	Kristof Provost <kristof -at- freebsd.org>
2011-04-15 13:37:43 +00:00
Sergey Kandaurov
4343e1a66b Remove the now defunct kern.ipc.nmbufs tunable.
PR:		kern/132497 (part)
MFC after:	1 week
2011-04-13 12:19:03 +00:00
Roman Divacky
a2e53e9621 Move getc() body before xgetc() so gcc does not emit a warning about function
having no body.

Approved by:    jhb
2011-04-06 17:54:12 +00:00
Roman Divacky
ae1f5a71f2 Mark getc() as inline, this has no effect on gcc but helps clang.
Approved by:    jhb
2011-04-06 17:29:40 +00:00
Yoshihiro Takahashi
c3e05ae05d MFi386: revision 220337
Build boot2 with -mregparm=3.
2011-04-05 13:48:53 +00:00
Roman Divacky
57ac2e1286 Build boot2 with -mregparm=3, ie. pass upto 3 arguments via registers.
This modifies CFLAGS and tweaks sio.S to use the new calling convention.
The sio_init() and sio_putc() prototypes are modified so that other
users of this code know the correct calling convention.

This makes the code smaller when compiled with clang.

Reviewed by:    jhb
Tested by:      me and Freddie Cash <fjwcash gmail com>
2011-04-04 18:23:55 +00:00
Marcel Moolenaar
0a215cf2d8 Fix a long standing bug where file_load() passes down the global loadaddr
to the l_load() method in the file_formats structure, while being passed
an address as an argument (dest). With file_load() calling arch_loadaddr()
now, this bug is a little bit more significant.

Spotted by: nyan@ (nice catch!)
2011-04-04 16:59:46 +00:00
Marcel Moolenaar
76ceb3c6ee Use the new arch_loadaddr I/F to align ELF objects to PBVM page
boundaries. For good measure, align all other objects to cache
lines boundaries.

Use the new arch_loadseg I/F to keep track of kernel text and
data so that we can wire as much of it as is possible. It is
the responsibility of the kernel to link critical (read IVT
related) code and data at the front of the respective segment
so that it's covered by TRs before the kernel has a chance to
add more translations.

Use a better way of determining whether we're loading a legacy
kernel or not. We can't check for the presence of the PBVM page
table, because we may have unloaded that kernel and loaded an
older (legacy) kernel after that. Simply use the latest load
address for it.
2011-04-03 23:49:20 +00:00
Marcel Moolenaar
0cca5d3d90 Add 2 new archsw interfaces:
1.  arch_loadaddr - used by platform code to adjust the address at which
    the object gets loaded. Implement PC98 using this new interface instead
    of using conditional compilation. For ELF objects the ELF header is
    passed as the data pointer. For raw files it's the filename. Note that
    ELF objects are first considered as raw files.
2.  arch_loadseg - used by platform code to keep track of actual segments,
    so that (instruction) caches can be flushed or translations can be
    created. Both the ELF header as well as the program header are passed
    to allow platform code to treat the kernel proper differently from any
    additional modules and to have all the relevant details of the loaded
    segment (e.g. protection).
2011-04-03 22:31:51 +00:00
Marcel Moolenaar
429d5c051f Revert rev 165325. The arch_maphint interface hasn't been in use for
more than 4 years.
2011-04-03 05:09:25 +00:00
Marcel Moolenaar
66ddefc574 Make the ski loader functional again after the previous set of changes. 2011-04-03 03:26:12 +00:00
Yoshihiro Takahashi
9d55f5499b MFi386: the part of 219452
- bunch of variables are turned into uint8_t.
  - the setting and reading of "fmt" in load() is removed.
  - buf in printf() is made static to save space.
2011-03-24 15:09:36 +00:00
Andrey V. Elsukov
b00a71345c The size of zfsboot2 grown up to 64 Kbytes in r219089.
Increase NSECT up to 128 sectors too.

Reviewed by:	jhb, pjd
2011-03-16 20:19:48 +00:00
Andrey V. Elsukov
fa3c0ecda2 Set control flags in putc(). This should fix zfsboot hangs in drvread().
PR:		kern/153552
Reviewed by:	jhb
MFC after:	1 week
2011-03-16 20:04:56 +00:00
Marcel Moolenaar
18d9407a9f MFaltix:
Add support for Pre-Boot Virtual Memory (PBVM) to the loader.

PBVM allows us to link the kernel at a fixed virtual address without
having to make any assumptions about the physical memory layout. On
the SGI Altix 350 for example, there's no usuable physical memory
below 192GB. Also, the PBVM allows us to control better where we're
going to physically load the kernel and its modules so that we can
make sure we load the kernel in memory that's close to the BSP.

The PBVM is managed by a simple page table. The minimum size of the
page table is 4KB (EFI page size) and the maximum is currently set
to 1MB. A page in the PBVM is 64KB, as that's the maximum alignment
one can specify in a linker script. The bottom line is that PBVM is
between 64KB and 8GB in size.

The loader maps the PBVM page table at a fixed virtual address and
using a single translations. The PBVM itself is also mapped using a
single translation for a maximum of 32MB.

While here, increase the heap in the EFI loader from 512KB to 2MB
and set the stage for supporting relocatable modules.
2011-03-16 03:53:18 +00:00
Marcel Moolenaar
e681e3cd56 Revert previous commit: EFI_STATUS is a 64-bit integral on ia64. Fix the
compile warning on i386 (where EFI_STATUS is a 32-bit integral) by casting
the status argument to u_long instead.

Pointy hat: brucec
MFC after: 3 days
2011-03-16 00:08:10 +00:00
Marcel Moolenaar
155438b4bd Merge svn+ssh://svn.freebsd.org/base/head@219680 2011-03-15 23:28:15 +00:00