david/ipxe
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627 Commits

Author SHA1 Message Date
Michael Brown
0ed066bc50 rm_ss, rm_sp, and pm_esp don't need to be accessed from anywhere 
outside of librm.S.
 2007-09-25 19:20:38 +01:00
Michael Brown
b8a8eea850 Minor refactoring to eliminate duplication. 2007-09-25 19:06:38 +01:00
Michael Brown
dec325fe43 Use full protected mode for access to high memory within prefix, to 
work around limitations in real-mode virtualisation support on Intel
VT-capable chips.
 2007-09-25 18:01:15 +01:00
Michael Brown
a7eee64506 Added more verbose memory-map debugging. 
Added redundant call to get_memmap() in int13_boot() immediately
before jumping to boot sector, to assist in debugging.
 2007-09-21 18:33:17 +01:00
Michael Brown
9c264faa0c Add const attribute to byte-swapping functions 2007-09-21 01:15:06 +01:00
Michael Brown
a82e6ec2de Added missing .kpxe prefix. 2007-09-06 15:08:41 +01:00
Michael Brown
01b755704a Auto-assign drive number only if set to 0xff; almost all applications 
require that we use drive 0x80, so it should probably be the default.
 2007-08-23 20:50:24 +01:00
Michael Brown
eff8b06eff Separate out arch-independent parts of stdint.h 2007-08-17 19:51:08 +01:00
Michael Brown
950057eeed Add PXE FILE API. 2007-08-04 01:23:37 +01:00
Michael Brown
688bac1656 Place multiboot command lines in base memory; Xen won't pick them up 
otherwise.  :(
 2007-08-02 23:09:03 +01:00
Michael Brown
d4947c05b2 Allow images to hold references to the originating URI. 
Some shuffling around of the image management code; this needs tidying up.
 2007-08-02 20:18:32 +01:00
Michael Brown
9fd6a0418f Allowed zero-cost enforced ordering of features in startup banner 
list.

Added FEATURE() macros to most relevant (non-driver) files.
 2007-08-02 14:51:03 +01:00
Holger Lubitz
0ebf6cdef4 remove old minorversion!=4 check (added -march a second time) 2007-08-02 01:54:42 +01:00
Holger Lubitz
06eb725cd4 remove x86_64 comments from arch specific Config 
options are in main makefile now
 2007-08-02 01:48:28 +01:00
Michael Brown
726e366e8f Add code for constructing single-file cpio archives on the fly 2007-08-01 23:10:30 +01:00
Michael Brown
24f32a1945 Initrd concatenation now working 2007-08-01 15:29:15 +01:00
Michael Brown
c5d9114064 Allow loading of multiple initramfs images. 2007-07-31 18:09:18 +01:00
Michael Brown
5e26df0325 Centralise construction of the DHCP request and response packets. 2007-07-31 03:02:21 +01:00
Michael Brown
4ce8d61a5c Import various libgcc functions from syslinux. 
Experimentation reveals that gcc ignores -mrtd for the implicit
arithmetic functions (e.g. __udivdi3), but not for the implicit
memcpy() and memset() functions.  Mark the implicit arithmetic
functions with __attribute__((cdecl)) to compensate for this.

(Note: we cannot mark with with __cdecl, because we define __cdecl to
incorporate regparm(0) as well.)
 2007-07-30 02:43:43 +01:00
Michael Brown
f62d6486d8 GCC's optimiser seems to screw up if this is left static... 2007-07-30 02:42:32 +01:00
Michael Brown
304d1e9fa5 Don't rely on retry.c's periodically calling currticks() in order to 
allow the UNDI NIC interrupt to happen.
 2007-07-29 15:27:47 +01:00
Michael Brown
a6a1052096 Applied a modified version of holger's regparm patches. 2007-07-29 00:17:25 +01:00
Holger Lubitz
0ae6c53bd9 Revert "make __udivmoddi4 static" - gcc links to it implicitly 
This reverts commit 9e7b165017.
 2007-07-28 23:20:00 +02:00
Holger Lubitz
9a4790667a make multiboot_load static 2007-07-27 22:01:23 +02:00
Holger Lubitz
dc38303ff9 make nbi_load static 2007-07-27 22:00:51 +02:00
Holger Lubitz
5ec4e2ad50 make eltorito_load static 2007-07-27 21:58:31 +02:00
Holger Lubitz
9e7b165017 make __udivmoddi4 static 2007-07-27 21:39:58 +02:00
Michael Brown
09118cd5bf Don't overwrite %dl with a (potentially) modified drive number if we 
already handled the INT13 call.
 2007-07-25 02:03:29 +01:00
Michael Brown
d5e39286f7 We probably shouldn't leave interrupts disabled when starting an OS. 2007-07-25 02:02:24 +01:00
Michael Brown
9aa61ad5a2 Add per-file error identifiers 2007-07-24 17:11:31 +01:00
Michael Brown
75912b3b77 Remove some obsolete sections of librm.h and libkir.h. 
Add some of the missing parts to libkir.h.
 2007-07-24 12:46:07 +01:00
Michael Brown
07e11f8af9 Minor debug improvement 2007-07-19 17:01:21 +01:00
Michael Brown
2cfe0dee1f Don't trash the %ecx value returned by relocate(). This was causing 
us to round down the size for the relocation copy to the nearest 64kB
(+0x10 bytes); this just happened to work on most machines because the
last 64kB of the image is all-zeroes anyway (it's the .bss).
 2007-07-19 16:07:31 +01:00
Michael Brown
a8111e8ab7 Remove INT 13,4b handler; it represents an incomplete feature (CD-ROM 
emulation support) for an unknown purpose, and breaks grub.
 2007-07-19 11:16:05 +01:00
Michael Brown
0d9d2ccbae Completed definition of struct int13_cdrom_specification, and moved to 
int13.h.
 2007-07-19 11:15:01 +01:00
Michael Brown
013d381e3c Real-mode code might set the direction flag, which would cause carnage. 2007-07-17 13:46:37 +01:00
Michael Brown
c94cdf2b7d Move .zinfo to libprefix.S; it doesn't belong with the decompression code. 2007-07-17 12:52:54 +01:00
Michael Brown
dc52db4920 Removed dead code identified by symcheck 2007-07-17 01:43:19 +01:00
Michael Brown
38dbe14bbe Kill off redundant references to the .zprefixes. 2007-07-16 17:26:07 +01:00
Michael Brown
84551d485e Update all prefixes currently referring to _load_size to include a 
compressor fixup section.
 2007-07-16 17:17:26 +01:00
Michael Brown
0929142a15 Rename _rom_size to _load_size_sect, since hdprefix.S also uses it. 2007-07-16 17:03:19 +01:00
Michael Brown
048bbeeebc Compressed ROM images now work. 2007-07-16 16:58:38 +01:00
Michael Brown
6d2e4e719c Move uninitialised .data16 variables to .bss16; saves around 2000 
bytes of useless zeroes in the final image.
 2007-07-16 13:22:12 +01:00
Michael Brown
389204713f Kill off some long-redundant CFLAGS 2007-07-16 13:15:12 +01:00
Michael Brown
833d6cc8ec Add __bss16() macro, and allow use of .bss16 section by removing 
link-time check for section overlaps.  (In order to avoid wasting
space in the executable image, .bss16 will overlap with the following
section, which is .text).
 2007-07-16 13:10:49 +01:00
Michael Brown
ab859a5355 Use a single _payload_offset linker-defined variable to locate the 
start of the non-prefix blocks in the loaded image, and rely on the
image ordering.  This should make introducing compression much easier.
 2007-07-15 02:52:02 +01:00
Michael Brown
0b5059c40b Skip the length field prepended by util/nrv2b.c 2007-07-15 02:01:17 +01:00
Michael Brown
b37e267d1b Modified calling convention: we now update %esi and %edi just like a 
"rep movsb".
 2007-07-15 01:51:32 +01:00
Michael Brown
3feac9465e "not" doesn't affect flags, "xor $-1" does. 2007-07-15 01:25:13 +01:00
Michael Brown
26473105cd On advice of hpa: be more patient with the KBC and SCPA methods; retry 
in a long loop before giving up on them.  Record method which worked
and default to that method on next attempt.
 2007-07-14 20:56:12 +01:00
Michael Brown
adf192f566 Shrink cpu.c and render it useful for our purposes. 2007-07-14 19:12:13 +01:00
Michael Brown
e330db3c74 Dead code removal. 
Kill off use of etherboot.h outside drivers/net.
 2007-07-14 15:42:26 +01:00
Michael Brown
95c07736cb Be more aggressive in attempts to enable A20, now that we have the 
optimisation of only trying to do so when necessary.
 2007-07-14 14:21:18 +01:00
Michael Brown
8624fdc445 Kill off the enforced RX quota; it only seems to hurt on real hardware. 2007-07-14 00:30:11 +01:00
Michael Brown
57b5e227ff Use fast in-situ test for gate A20 being set, to cut down on the 
number of (potentially very slow) gateA20_set operations.

Die with a fatal error if we are unable to set gate A20; if this fails
then we are bound to experience memory corruption at a later stage,
and I'd prefer to pick it up early.
 2007-07-13 13:32:49 +01:00
Michael Brown
2ac7694c3e Improve error reporting for strange length combinations reported by 
the UNDI stack.

Ignore obviously invalid length combinations (as returned by
e.g. VMWare's PXE stack).

Limit to one packet per poll to avoid memory exhaustion.
 2007-07-10 20:59:21 +01:00
Michael Brown
efd322091d Set up %ds *before* testing a value in our data segment (d'oh!). 
Always send EOI; do not chain to BIOS's default interrupt handler.
They are just too unpredictable; at least VMware's seems to kill the
machine if you go anywhere near it.

Disable interrupts after return from PXENV_UNDI_ISR, just in case some
dumb PXE stack enables them.
 2007-07-10 17:08:32 +01:00
Michael Brown
f6f9a3098d Report RX errors via netdev_rx_err() 2007-07-10 17:01:18 +01:00
Michael Brown
fb16f90699 Dump first 64 bytes of chained ISR when debugging is enabled. 2007-07-10 16:57:55 +01:00
Michael Brown
edc4648c39 Protect ISR against failure to unhook. 2007-07-10 04:34:53 +01:00
Michael Brown
4e14b020a5 Master IRQ should be EOIed first, I think. 2007-07-10 04:33:59 +01:00
Michael Brown
19871cbb96 We probably ought not to call INT13 with interrupts disabled. 2007-07-10 04:32:30 +01:00
Michael Brown
027fed72c1 Working code to call the PXE stack from within the ISR. 2007-07-10 04:21:24 +01:00
Michael Brown
cd7e296cbe Always increase number of BIOS drives when registering 2007-07-09 20:42:04 +01:00
Michael Brown
b90d321dfb Change %dl fixup rules for INT13: 
INT 13,08 : read number of drives from 40:75
INT 13,15 : do nothing
all others : restore original value of %dl
 2007-07-09 20:37:39 +01:00
Michael Brown
c7d9fdb5b9 Proof of concept; works, but has several hard-coded hacks. 2007-07-09 20:28:40 +01:00
Michael Brown
8bce52d348 Set CF by default, clear on success (rather than clearing and setting 
on failure).
 2007-07-09 19:02:41 +01:00
Holger Lubitz
4ff85d9f15 Add -mpreferred-stack-boundary=2 to i386 CFLAGS as it's almost always a win. 2007-07-09 03:32:54 +01:00
Michael Brown
4c418d2100 Use net_device_operations structure and netdev_nullify() to allow for 
safe dropping of the netdev ref by the driver while other refs still
exist.

Add netdev_irq() method.  Net device open()/close() methods should no
longer enable or disable IRQs.

Remove rx_quota; it wasn't used anywhere and added too much complexity
to implementing correct interrupt-masking behaviour in pxe_undi.c.
 2007-07-07 16:43:39 +01:00
Holger Lubitz
c7549bcebe convert to zalloc 2007-07-06 20:19:06 +02:00
Holger Lubitz
bb61774ee4 convert to zalloc 2007-07-06 20:19:06 +02:00
Michael Brown
311637503d Merge branch 'master' of rom.etherboot.org:/pub/scm/gpxe 2007-07-06 13:31:58 +01:00
Michael Brown
f660e8ef58 Add strlen_user() (will be needed for PXE API extensions) 2007-07-06 13:07:10 +01:00
Marty Connor
74a1c77820 Merge branch 'master' of /pub/scm/gpxe 2007-07-06 08:04:55 -04:00
Marty Connor
28d8d828b3 Rename .lilo extension to .lkrn and updated dependencies 2007-07-06 08:04:06 -04:00
Michael Brown
763a3eab8a Add .pdsk target (padded .dsk, suitable for qemu). 2007-07-05 23:37:17 +01:00
Michael Brown
fbda4837b0 Allocate heap at first usage, rather than assuming we can fit it in 
below _text.  This should help with the gPXE-on-gPXE-via-PXE case.
 2007-07-05 22:30:34 +01:00
Michael Brown
07ea125213 Use partition type 0xeb ("EtherBoot"), to avoid any attempts to mount 
the Etherboot partition.
 2007-07-05 14:20:55 +01:00
Michael Brown
6e082c9b81 Add .usb target 2007-07-05 14:15:43 +01:00
Michael Brown
a0f078d7f5 Working with multi-sector reads 2007-07-05 13:30:49 +01:00
Michael Brown
66208dd65d hdprefix that works for LBA only 2007-07-05 12:58:16 +01:00
Michael Brown
839960276d Miscellaneous efficiency improvements, and extend read_sectors to 
handle multiple sectors.
 2007-07-05 12:36:39 +01:00
Michael Brown
3c2d50e5de Added active partition locator, and simple MBR built using it. 2007-07-05 00:21:01 +01:00
Michael Brown
738ebaf4a5 Revert "Added master boot record capable of locating active partition" 
This reverts commit 844d088c51.
 2007-07-05 00:20:04 +01:00
Michael Brown
844d088c51 Added master boot record capable of locating active partition 
(including logical partitions).
 2007-07-05 00:05:26 +01:00
Michael Brown
5e3f2247e0 Kill off lots of warnings in via-velocity.c by correcting these definitions. 2007-07-04 23:36:16 +01:00
Michael Brown
ac69b85adb UNDI loader entry point implemented; seems to work. 2007-07-04 03:23:02 +01:00
Michael Brown
1ecb9acb87 Fix typo 2007-07-04 02:25:07 +01:00
Michael Brown
dca470cb21 Add (untested) UNDI loader C-level implementation. 2007-07-03 23:41:35 +01:00
Michael Brown
7db6b4b79c Merge branch 'master' of rom.etherboot.org:/pub/scm/gpxe 2007-07-03 23:10:16 +01:00
Michael Brown
89349d7fad Separated out initialisation functions from startup/shutdown functions. 2007-07-03 23:09:56 +01:00
Marty Connor
79238335b0 remove obsolete file: src/arch/i386/prefix/int19exit.c 2007-07-03 16:24:06 -04:00
Michael Brown
cbd4542dc0 Merge branch 'master' of rom.etherboot.org:/pub/scm/gpxe 2007-07-03 21:09:26 +01:00
Marty Connor
9b3c4e4d79 Warnings purge: src/arch/i386, src/core/disk.c, ramdisk, autoboot 2007-07-03 16:02:15 -04:00
Michael Brown
fae10a7ca1 We don't actually use the reset functions anywhere, and nothing really 
provides them.
 2007-07-03 20:34:51 +01:00
Michael Brown
2dc8ed1eb8 Work around Etherboot 5.4 bug when multiple packets are received. 2007-07-03 15:53:29 +01:00
Michael Brown
0958726ebb It's not just Etherboot that fails to generate TX completions. 2007-07-03 14:43:57 +01:00
Michael Brown
adb3dd03e5 Document TX completion bug. 2007-07-03 13:17:58 +01:00
Michael Brown
071356d976 Ensure that pxe_netdev is set before starting up PXE NBP. 2007-07-03 00:02:26 +01:00
Michael Brown
e42eba4af4 Use a common base-memory packet buffer for DHCP construction (as used 
by PXE and NBI) and UNDI packets (as used by undinet and UNDI).
 2007-07-02 18:33:41 +01:00
Michael Brown
5f17089b14 pxe_netdev now holds a reference to the network device. 
Use generic fields in struct device_description rather than assuming
that the struct device * is contained within a pci_device or
isapnp_device; this assumption is broken when using the undionly
driver.

Add PXENV_UNDI_SET_STATION_ADDRESS.
 2007-07-02 17:43:32 +01:00
Michael Brown
d5451d210c Add ability to resolve relative symbols as well as locate absolute ones. 2007-06-30 22:59:15 +01:00
Michael Brown
8f6a4e8140 Add gdbsym.c object to help with running gdb-to-qemu 2007-06-30 22:43:31 +01:00
Michael Brown
e1646b4080 Place the actual version string in .data16, rather than just the 
pointer to it.
 2007-06-30 21:36:54 +01:00
Michael Brown
8130443f9f Separate out pxe_start_nbp() from pxe_image.c into pxe_call.c 
Implement PXENV_RESTART_TFTP.
 2007-06-30 14:56:35 +01:00
Michael Brown
d71b116f54 Fix stack on return from PXE NBP so that we can return properly. 2007-06-28 23:37:49 +01:00
Michael Brown
045fb24557 Use internal real-mode stack from non-returnable prefixes 2007-06-28 21:56:14 +01:00
Michael Brown
00473f0952 Revert "Move stack to below 0x7c00; leaving it at the default location" 
This reverts commit 03ca71c38d.
 2007-06-28 21:50:36 +01:00
Michael Brown
03ca71c38d Move stack to below 0x7c00; leaving it at the default location 
(0x7ef4) tends to really screw up anything that loads at 0x7c00...
 2007-06-28 21:15:47 +01:00
Michael Brown
f77815f2b1 Kill off hotplug.h and just make net devices normal reference-counted 
structures.

DHCP still broken and #if 0'd out.
 2007-06-27 14:48:31 +01:00
Michael Brown
1ae549b892 Add our own trivial version of stdarg.h. This makes our build 
entirely self-hosted (which avoids problems when building the same
tree on multiple systems - e.g. when you have /home NFS-mounted).

Also saves around 50 bytes in total - not sure why.
 2007-06-09 18:11:07 +01:00
Michael Brown
3e2c6b6736 pkbuff->iobuf changeover 
Achieved via Perl using:

perl -pi -e 's/pk_buff/io_buffer/g; s/Packet buffer/I\/O buffer/ig; ' \
	-e 's/pkbuff\.h/iobuf.h/g; s/pkb_/iob_/g; s/_pkb/_iob/g; ' \
	-e 's/pkb/iobuf/g; s/PKB/IOB/g;'
 2007-05-19 18:39:40 +00:00
Michael Brown
0d9b3e2dd2 Add 32-bit support. 
Generate DHCP data block for images.
 2007-03-22 16:18:46 +00:00
Michael Brown
ff7d0af585 Provide a buffer in base memory for code to fill with generated DHCP data. 2007-03-22 16:18:07 +00:00
Michael Brown
160e66dbb9 Typo 2007-03-20 18:55:00 +00:00
Michael Brown
5578d3b2de Support 32-bit (linear) NBI images. We don't yet provide a bootp data 
block, so first32.c dies immediately.
 2007-03-14 00:39:12 +00:00
Michael Brown
37127ea90c Added .nbi as a format. 2007-03-11 00:57:26 +00:00
Michael Brown
628f6eddcc Make _load_size accurately reflect the number of bytes in the actual 
image file.
 2007-03-11 00:54:35 +00:00
Michael Brown
520d9c36af Updated ISAPnP, EISA, MCA and ISA buses to current device model. 
ISA 3c509 is currently non-functional, although the EISA (3c509-eisa) and
MCA (3c529) variants should build OK.

None of this code is yet tested.
 2007-03-10 18:08:33 +00:00
Michael Brown
22ed1fbaf1 Add ability to read serial number from SMBIOS 2007-02-01 20:52:12 +00:00
Michael Brown
f06059ab97 More assertions 2007-02-01 02:18:22 +00:00
Michael Brown
c650c8c84a Also print out stack pointer (with optional stack dump) 2007-02-01 02:17:59 +00:00
Michael Brown
406b20a64d Assert that division result is correct 2007-01-31 23:58:52 +00:00
Michael Brown
c789e8640b Added __umoddi3 2007-01-31 22:26:14 +00:00
Michael Brown
7d9267561b Don't call PXENV_STOP_UNDI in the kpxeprefix. This slighy breaks the 
clean separation between loading and starting, but does mean that more
PXE stacks survive the process.
 2007-01-29 15:21:10 +00:00
Michael Brown
2cf1e33df1 Split bootsector execution code out into bootsector.c. 
Added basic El Torito ISO image boot capability
 2007-01-29 04:21:38 +00:00
Michael Brown
b3b6b25aeb Handle (64-bit) / (32-bit) = (64-bit), i.e. one step beyond that 
provided by the divl instruction.
 2007-01-28 19:34:17 +00:00
Michael Brown
f59281d8f6 Yet more synonyms that people tend to use. 2007-01-26 01:30:16 +00:00
Michael Brown
6a765fdc15 Use base "0" in strtoul for consistency with "mem=" 2007-01-24 22:54:08 +00:00
Michael Brown
99cb46943f "vga=" is specified in decimal, not hex. 2007-01-22 23:56:24 +00:00
Michael Brown
ebb00e032c Misread the definition of the type_of_loader field; it should include a 
version.
 2007-01-19 15:40:01 +00:00
Michael Brown
73b09ecba6 Use stdio.h instead of vsprintf.h 2007-01-19 01:13:12 +00:00
Michael Brown
5d57cd47a2 Declaring the CPU architecture in the middle of an assembly file is 
somewhat redundant, and also causes gas to complain when we include
the profiling code (which uses an i586 instruction).
 2007-01-18 18:53:32 +00:00
Michael Brown
bd95927386 Accelerate memcpy() by around 32% on large, dword-aligned copies. 2007-01-18 15:18:02 +00:00
Michael Brown
544fa25928 Rename e{malloc,realloc,free} to u{malloc,realloc,free}, to more obviously 
reflect the fact that they allocate and deallocate user memory (i.e.
things reached through a userptr_t).
 2007-01-16 08:36:42 +00:00
Michael Brown
a5f6408d8e We can now load an initrd as well as a kernel 2007-01-14 16:09:01 +00:00
Michael Brown
b9f99858ab Make the getmemsize() prototype available in memsizes.h, for code that 
doesn't want to go to the hassle of processing a full memory map.
 2007-01-14 15:32:25 +00:00
Michael Brown
10c9b03cdb Actually, the initrd image should be architecture-independent. 2007-01-14 15:07:11 +00:00
Michael Brown
f92e04dea4 Add dummy "initrd" image format, just so that images can be marked as 
initrds.
 2007-01-14 15:03:39 +00:00
Michael Brown
8a490146bf Copy command line at execution time rather than load time. 
Parse command line for "vga=" and "mem=" parameters
 2007-01-14 14:29:30 +00:00
Michael Brown
3ccd7335f0 Split bzimage_load into separate functions 2007-01-14 13:36:33 +00:00
Michael Brown
97a3037f76 Can start a Linux kernel directly (albeit with no initrd support) 2007-01-14 12:34:35 +00:00
Michael Brown
3cbf0db0a3 Remove some references to no-longer-existent source files. 
Add a path for isolinux.bin that is correct on my system; hopefully it
will work on others too.
 2007-01-14 11:52:22 +00:00
Michael Brown
b04b0ddc31 .lilo and derived targets (e.g. .iso) now load properly. 2007-01-14 11:50:44 +00:00
Michael Brown
77d280968a Obsoleted by arch/i386/image/multiboot.c 2007-01-14 11:45:28 +00:00
Michael Brown
784e10635a Can almost start a kernel now. It dies with "No setup signature found" 2007-01-14 06:36:20 +00:00
Michael Brown
b07161f397 Placeholder bzImage support 2007-01-14 04:27:25 +00:00
Michael Brown
797edf28b7 Replace image->entry with image->priv. 2007-01-14 04:04:28 +00:00
Michael Brown
3bdbfe1f00 Mostly updated. Won't work yet. 2007-01-14 03:49:07 +00:00
Michael Brown
644f3674e6 Obsolete for some time 2007-01-14 02:24:41 +00:00
Michael Brown
7bc03d37a2 Select a PXE network device before starting PXE NBP. 
Move pxe_boot() code to pxe_image.c
 2007-01-14 02:20:10 +00:00
Michael Brown
55e6d7b70c Use debug autocolourisation. 
Shut down before jumping to the multiboot image.
 2007-01-14 00:57:43 +00:00
Michael Brown
dca369ddc3 Call hide_etherboot() from startup(), rather than requiring the prefix to 
do it.
 2007-01-14 00:53:56 +00:00
Michael Brown
ece4ff929e Use _text, rather than assuming _text==0. 2007-01-14 00:03:07 +00:00
Michael Brown
f547f148d3 Use {get,set}_fbms() so that allocated base memory is correctly hidden. 2007-01-14 00:01:16 +00:00
Michael Brown
0b0e34e667 Provide {get,set}_fbms() in basemem.h. 
set_fbms() will also update the E820 hidden region.
 2007-01-13 23:57:31 +00:00
Michael Brown
aaed3d50a8 Some operating systems get a nasty shock if a region of the E820 map seems 
to start on a non-page boundary.  Make life safer by rounding out our
edited regions.
 2007-01-13 23:38:33 +00:00
Michael Brown
d0f4e9a54b Add some trace messages for important events 2007-01-13 17:54:41 +00:00
Michael Brown
f11900a9c6 I prefer IMAGE_XXX to XXX_IMAGE. 
Add IMAGE_PXE to use the new image format framework.  "kernel pxelinux.0"
now works.
 2007-01-13 17:28:51 +00:00
Michael Brown
bd863e4112 Add header for pxe_boot() 2007-01-13 17:23:44 +00:00
Michael Brown
4b77061881 Pick up the return status code from the correct place now that we 
don't overwrite the parameter block until *after* the debug code.
 2007-01-13 16:55:57 +00:00
Michael Brown
5817c9f114 When an UNDI API call fails, print everything there is to know about it. 2007-01-13 16:53:55 +00:00
Michael Brown
6a3c76c8e0 Always send EOI. We can't feasibly share interrupts (since we have no 
clue what the "previous" interrupt handler will do, which could range
from "just an iret" to "disable the interrupt"), and that means that
we have to take responsibility for ACKing all interrupts.  Joy.
 2007-01-13 14:45:26 +00:00
Michael Brown
86171c53f4 Damn Broadcom and their damned incorrect assumptions about x86 memory 
allocation.
 2007-01-13 01:48:12 +00:00
Michael Brown
bcd6ca3291 Place multiboot tables in base memory; at least some OSes won't see it 
if we don't.
 2007-01-12 16:25:05 +00:00
Michael Brown
0f29e0e46e Ensure multiboot modules are in ascending order of memory start 
address, to work around OS bugs.
 2007-01-12 12:03:19 +00:00
Michael Brown
53e948bba8 Fix the memory map. 2007-01-12 11:38:04 +00:00
Michael Brown
6fdc6c81a6 Force probing of multiboot before ELF. 2007-01-12 08:10:35 +00:00
Michael Brown
9debfed07a Place command-line inline, to save on memory allocation hassles. 2007-01-12 05:26:19 +00:00
Michael Brown
77b7640af4 Fix the only bug (which was to use DBGC() in place of DBG()!) and add 4kB 
alignment.
 2007-01-12 03:28:03 +00:00
Michael Brown
45ec9c907e First version of an external memory allocator (not tested) 2007-01-12 03:15:29 +00:00
Michael Brown
1d313234b3 Rename copy_user() to memcpy_user(). Add memmove_user() and 
userptr_add().
 2007-01-12 03:14:15 +00:00
Michael Brown
859da6bd32 Allow external code to update hidden memory regions. 2007-01-12 03:13:04 +00:00
Michael Brown
687c1e3227 Nothing (not even hidemem.c) uses this file! 2007-01-12 02:45:46 +00:00
Michael Brown
39a8ed827c Long since obsoleted by arch/i386/scripts/i386.lds 2007-01-12 02:43:10 +00:00
Michael Brown
2e088d9afc Obsoleted by arch/i386/interface/pxe/pxe_call.c 2007-01-12 02:42:14 +00:00
Michael Brown
f81bf3bc52 We *do* have a __data16_array after all! 2007-01-12 02:37:47 +00:00
Michael Brown
e4c6418ac0 We may be required to page-align modules, so let's make sure we catch 
it if we don't.
 2007-01-12 00:09:16 +00:00
Michael Brown
f59ad50504 Provide registration mechanism for loaded images, so that we can e.g. 
refer to them by name from the command line, or build them into a
multiboot module list.

Use setting image->type to disambiguate between "not my image" and "bad
image"; this avoids relying on specific values of the error code.
 2007-01-11 23:43:29 +00:00
Michael Brown
f31d91bce5 Populate multiboot information structure before calling OS. 2007-01-11 21:21:02 +00:00
Michael Brown
ddbc60b5ae Whoever put together the grub multiboot.h header is insane. 2007-01-11 21:20:27 +00:00
Michael Brown
200d92c76d Avoid namespace clashes 2007-01-11 19:42:26 +00:00
Michael Brown
bcc98c78b8 Added fields present in the documentation but not in the header file. 2007-01-11 19:41:13 +00:00
Michael Brown
dc51af59a4 Capable of starting a multiboot kernel (albeit without the multiboot 
information table yet).
 2007-01-11 18:41:15 +00:00
Michael Brown
9196e9069c Add PHYS_CODE, for use as in __asm__ ( PHYS_CODE ( ... ) ), comparable 
to the REAL_CODE interface.
 2007-01-11 18:40:46 +00:00
Michael Brown
d488a172eb Capable of loading a multiboot image into memory 2007-01-11 17:44:42 +00:00
Michael Brown
143e3b84a4 Downloaded from current grub CVS. 2007-01-11 16:22:03 +00:00
Michael Brown
4fc9333159 Move include/image.h to include/gpxe/image.h 2007-01-11 16:04:36 +00:00
Michael Brown
7ad1c2eaa8 Removed the Etherboot-specific ELF-image code and replaced it with a 
generic ELF loader, to be used by the multiboot code.
 2007-01-11 14:44:03 +00:00
Michael Brown
3634e705b7 Remove osloader.c and replace with a prep_segment() that uses userptr_t 
and get_memmap() in image/segment.c
 2007-01-11 14:32:26 +00:00
Michael Brown
ceca6b185c Added user_to_phys() and memset_user(). 2007-01-11 14:27:27 +00:00
Michael Brown
c980cdd0aa Move memmap.h out of arch/i386; it no longer contains anything 
architecture-dependent and is needed by the ELF code.
 2007-01-11 14:08:44 +00:00
Michael Brown
c6a4055fae Add phys_to_user() and copy_user(). 2007-01-11 14:01:20 +00:00
Michael Brown
e2dcd05b67 Update buffer-handling code to enable expandable buffers. 2007-01-11 03:50:47 +00:00
Michael Brown
fdc97499bf Add device description fields to struct device. 2007-01-10 15:27:48 +00:00
Michael Brown
489a4004d7 Give UNDI device a more meaningful name. 2007-01-10 05:52:04 +00:00
Michael Brown
dad5274522 Add "name" field to struct device to allow human-readable hardware device 
names.

Add "dev" pointer in struct net_device to tie network interfaces back to a
hardware device.

Force natural alignment of data types in __table() macros.  This seems to
prevent gcc from taking the unilateral decision to occasionally increase
their alignment (which screws up the table packing).
 2007-01-10 04:22:09 +00:00
Michael Brown
c65fae2475 Add RX quotas to the net device poll() method. This avoids the problem 
of alloc_pkb() exhaustion when e.g. an iSCSI-booted DOS session is left
idle for a long time at the C:\ prompt and builds up a huge packet
backlog.
 2007-01-09 21:47:01 +00:00
Michael Brown
18e5353bed Rename pkb_available() to pkb_tailroom() for consistency with Linux's 
skb_tailroom().  Add pkb_headroom().
 2007-01-09 20:56:31 +00:00
Michael Brown
b7fcfe8ece Added net device TX queue; this will be needed to support the PXE UNDI API 
(which will need us to wait for TX completions).

Added debug autocolourisation to netdevice.c
 2007-01-09 20:18:31 +00:00